2668 lines
72 KiB
Plaintext
2668 lines
72 KiB
Plaintext
-- Strings.
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SELECT '""'::json; -- OK.
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json
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------
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""
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(1 row)
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SELECT $$''$$::json; -- ERROR, single quotes are not allowed
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ERROR: invalid input syntax for type json
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LINE 1: SELECT $$''$$::json;
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^
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DETAIL: Token "'" is invalid.
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CONTEXT: JSON data, line 1: '...
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SELECT '"abc"'::json; -- OK
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json
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-------
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"abc"
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(1 row)
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SELECT '"abc'::json; -- ERROR, quotes not closed
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '"abc'::json;
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^
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DETAIL: Token ""abc" is invalid.
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CONTEXT: JSON data, line 1: "abc
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SELECT '"abc
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def"'::json; -- ERROR, unescaped newline in string constant
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '"abc
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^
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DETAIL: Character with value 0x0a must be escaped.
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CONTEXT: JSON data, line 1: "abc
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SELECT '"\n\"\\"'::json; -- OK, legal escapes
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json
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----------
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"\n\"\\"
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(1 row)
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SELECT '"\v"'::json; -- ERROR, not a valid JSON escape
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '"\v"'::json;
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^
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DETAIL: Escape sequence "\v" is invalid.
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CONTEXT: JSON data, line 1: "\v...
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-- Check fast path for longer strings (at least 16 bytes long)
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SELECT ('"'||repeat('.', 12)||'abc"')::json; -- OK
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json
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-------------------
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"............abc"
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(1 row)
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SELECT ('"'||repeat('.', 12)||'abc\n"')::json; -- OK, legal escapes
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json
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---------------------
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"............abc\n"
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(1 row)
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-- see json_encoding test for input with unicode escapes
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-- Numbers.
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SELECT '1'::json; -- OK
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json
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------
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1
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(1 row)
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SELECT '0'::json; -- OK
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json
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------
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0
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(1 row)
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SELECT '01'::json; -- ERROR, not valid according to JSON spec
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '01'::json;
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^
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DETAIL: Token "01" is invalid.
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CONTEXT: JSON data, line 1: 01
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SELECT '0.1'::json; -- OK
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json
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------
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0.1
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(1 row)
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SELECT '9223372036854775808'::json; -- OK, even though it's too large for int8
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json
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---------------------
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9223372036854775808
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(1 row)
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SELECT '1e100'::json; -- OK
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json
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-------
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1e100
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(1 row)
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SELECT '1.3e100'::json; -- OK
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json
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---------
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1.3e100
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(1 row)
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SELECT '1f2'::json; -- ERROR
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '1f2'::json;
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^
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DETAIL: Token "1f2" is invalid.
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CONTEXT: JSON data, line 1: 1f2
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SELECT '0.x1'::json; -- ERROR
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '0.x1'::json;
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^
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DETAIL: Token "0.x1" is invalid.
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CONTEXT: JSON data, line 1: 0.x1
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SELECT '1.3ex100'::json; -- ERROR
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '1.3ex100'::json;
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^
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DETAIL: Token "1.3ex100" is invalid.
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CONTEXT: JSON data, line 1: 1.3ex100
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-- Arrays.
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SELECT '[]'::json; -- OK
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json
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------
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[]
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(1 row)
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SELECT '[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]'::json; -- OK
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json
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----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
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(1 row)
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SELECT '[1,2]'::json; -- OK
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json
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-------
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[1,2]
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(1 row)
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SELECT '[1,2,]'::json; -- ERROR, trailing comma
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '[1,2,]'::json;
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^
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DETAIL: Expected JSON value, but found "]".
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CONTEXT: JSON data, line 1: [1,2,]
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SELECT '[1,2'::json; -- ERROR, no closing bracket
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '[1,2'::json;
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^
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DETAIL: The input string ended unexpectedly.
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CONTEXT: JSON data, line 1: [1,2
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SELECT '[1,[2]'::json; -- ERROR, no closing bracket
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '[1,[2]'::json;
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^
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DETAIL: The input string ended unexpectedly.
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CONTEXT: JSON data, line 1: [1,[2]
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-- Objects.
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SELECT '{}'::json; -- OK
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json
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------
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{}
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(1 row)
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SELECT '{"abc"}'::json; -- ERROR, no value
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '{"abc"}'::json;
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^
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DETAIL: Expected ":", but found "}".
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CONTEXT: JSON data, line 1: {"abc"}
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SELECT '{"abc":1}'::json; -- OK
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json
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-----------
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{"abc":1}
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(1 row)
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SELECT '{1:"abc"}'::json; -- ERROR, keys must be strings
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '{1:"abc"}'::json;
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^
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DETAIL: Expected string or "}", but found "1".
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CONTEXT: JSON data, line 1: {1...
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SELECT '{"abc",1}'::json; -- ERROR, wrong separator
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '{"abc",1}'::json;
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^
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DETAIL: Expected ":", but found ",".
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CONTEXT: JSON data, line 1: {"abc",...
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SELECT '{"abc"=1}'::json; -- ERROR, totally wrong separator
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '{"abc"=1}'::json;
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^
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DETAIL: Token "=" is invalid.
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CONTEXT: JSON data, line 1: {"abc"=...
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SELECT '{"abc"::1}'::json; -- ERROR, another wrong separator
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '{"abc"::1}'::json;
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^
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DETAIL: Expected JSON value, but found ":".
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CONTEXT: JSON data, line 1: {"abc"::...
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SELECT '{"abc":1,"def":2,"ghi":[3,4],"hij":{"klm":5,"nop":[6]}}'::json; -- OK
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json
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---------------------------------------------------------
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{"abc":1,"def":2,"ghi":[3,4],"hij":{"klm":5,"nop":[6]}}
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(1 row)
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SELECT '{"abc":1:2}'::json; -- ERROR, colon in wrong spot
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '{"abc":1:2}'::json;
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^
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DETAIL: Expected "," or "}", but found ":".
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CONTEXT: JSON data, line 1: {"abc":1:...
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SELECT '{"abc":1,3}'::json; -- ERROR, no value
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '{"abc":1,3}'::json;
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^
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DETAIL: Expected string, but found "3".
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CONTEXT: JSON data, line 1: {"abc":1,3...
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-- Recursion.
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SET max_stack_depth = '100kB';
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SELECT repeat('[', 10000)::json;
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ERROR: stack depth limit exceeded
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HINT: Increase the configuration parameter max_stack_depth (currently 100kB), after ensuring the platform's stack depth limit is adequate.
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SELECT repeat('{"a":', 10000)::json;
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ERROR: stack depth limit exceeded
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HINT: Increase the configuration parameter max_stack_depth (currently 100kB), after ensuring the platform's stack depth limit is adequate.
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RESET max_stack_depth;
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-- Miscellaneous stuff.
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SELECT 'true'::json; -- OK
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json
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------
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true
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(1 row)
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SELECT 'false'::json; -- OK
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json
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-------
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false
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(1 row)
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SELECT 'null'::json; -- OK
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json
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------
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null
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(1 row)
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SELECT ' true '::json; -- OK, even with extra whitespace
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json
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--------
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true
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(1 row)
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SELECT 'true false'::json; -- ERROR, too many values
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ERROR: invalid input syntax for type json
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LINE 1: SELECT 'true false'::json;
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^
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DETAIL: Expected end of input, but found "false".
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CONTEXT: JSON data, line 1: true false
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SELECT 'true, false'::json; -- ERROR, too many values
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ERROR: invalid input syntax for type json
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LINE 1: SELECT 'true, false'::json;
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^
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DETAIL: Expected end of input, but found ",".
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CONTEXT: JSON data, line 1: true,...
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SELECT 'truf'::json; -- ERROR, not a keyword
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ERROR: invalid input syntax for type json
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LINE 1: SELECT 'truf'::json;
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^
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DETAIL: Token "truf" is invalid.
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CONTEXT: JSON data, line 1: truf
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SELECT 'trues'::json; -- ERROR, not a keyword
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ERROR: invalid input syntax for type json
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LINE 1: SELECT 'trues'::json;
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^
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DETAIL: Token "trues" is invalid.
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CONTEXT: JSON data, line 1: trues
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SELECT ''::json; -- ERROR, no value
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ERROR: invalid input syntax for type json
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LINE 1: SELECT ''::json;
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^
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DETAIL: The input string ended unexpectedly.
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CONTEXT: JSON data, line 1:
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SELECT ' '::json; -- ERROR, no value
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ERROR: invalid input syntax for type json
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LINE 1: SELECT ' '::json;
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^
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DETAIL: The input string ended unexpectedly.
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CONTEXT: JSON data, line 1:
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-- Multi-line JSON input to check ERROR reporting
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SELECT '{
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"one": 1,
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"two":"two",
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"three":
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true}'::json; -- OK
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json
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------------------------------
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{ +
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"one": 1, +
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"two":"two",+
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"three": +
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true}
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(1 row)
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SELECT '{
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"one": 1,
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"two":,"two", -- ERROR extraneous comma before field "two"
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"three":
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true}'::json;
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '{
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^
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DETAIL: Expected JSON value, but found ",".
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CONTEXT: JSON data, line 3: "two":,...
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SELECT '{
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"one": 1,
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"two":"two",
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"averyveryveryveryveryveryveryveryveryverylongfieldname":}'::json;
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ERROR: invalid input syntax for type json
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LINE 1: SELECT '{
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^
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DETAIL: Expected JSON value, but found "}".
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CONTEXT: JSON data, line 4: ...yveryveryveryveryveryveryveryverylongfieldname":}
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-- ERROR missing value for last field
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-- test non-error-throwing input
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select pg_input_is_valid('{"a":true}', 'json');
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pg_input_is_valid
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-------------------
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t
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(1 row)
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select pg_input_is_valid('{"a":true', 'json');
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pg_input_is_valid
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-------------------
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f
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(1 row)
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select * from pg_input_error_info('{"a":true', 'json');
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message | detail | hint | sql_error_code
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------------------------------------+--------------------------------------+------+----------------
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invalid input syntax for type json | The input string ended unexpectedly. | | 22P02
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(1 row)
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--constructors
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-- array_to_json
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SELECT array_to_json(array(select 1 as a));
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array_to_json
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---------------
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[1]
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(1 row)
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SELECT array_to_json(array_agg(q),false) from (select x as b, x * 2 as c from generate_series(1,3) x) q;
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array_to_json
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---------------------------------------------
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[{"b":1,"c":2},{"b":2,"c":4},{"b":3,"c":6}]
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(1 row)
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SELECT array_to_json(array_agg(q),true) from (select x as b, x * 2 as c from generate_series(1,3) x) q;
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array_to_json
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-----------------
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[{"b":1,"c":2},+
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{"b":2,"c":4},+
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{"b":3,"c":6}]
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(1 row)
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SELECT array_to_json(array_agg(q),false)
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FROM ( SELECT $$a$$ || x AS b, y AS c,
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ARRAY[ROW(x.*,ARRAY[1,2,3]),
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ROW(y.*,ARRAY[4,5,6])] AS z
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FROM generate_series(1,2) x,
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generate_series(4,5) y) q;
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array_to_json
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-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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[{"b":"a1","c":4,"z":[{"f1":1,"f2":[1,2,3]},{"f1":4,"f2":[4,5,6]}]},{"b":"a1","c":5,"z":[{"f1":1,"f2":[1,2,3]},{"f1":5,"f2":[4,5,6]}]},{"b":"a2","c":4,"z":[{"f1":2,"f2":[1,2,3]},{"f1":4,"f2":[4,5,6]}]},{"b":"a2","c":5,"z":[{"f1":2,"f2":[1,2,3]},{"f1":5,"f2":[4,5,6]}]}]
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(1 row)
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SELECT array_to_json(array_agg(x),false) from generate_series(5,10) x;
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array_to_json
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----------------
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[5,6,7,8,9,10]
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(1 row)
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SELECT array_to_json('{{1,5},{99,100}}'::int[]);
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array_to_json
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------------------
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[[1,5],[99,100]]
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(1 row)
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-- row_to_json
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SELECT row_to_json(row(1,'foo'));
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row_to_json
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---------------------
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{"f1":1,"f2":"foo"}
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(1 row)
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SELECT row_to_json(q)
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FROM (SELECT $$a$$ || x AS b,
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y AS c,
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ARRAY[ROW(x.*,ARRAY[1,2,3]),
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ROW(y.*,ARRAY[4,5,6])] AS z
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FROM generate_series(1,2) x,
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generate_series(4,5) y) q;
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row_to_json
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--------------------------------------------------------------------
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{"b":"a1","c":4,"z":[{"f1":1,"f2":[1,2,3]},{"f1":4,"f2":[4,5,6]}]}
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{"b":"a1","c":5,"z":[{"f1":1,"f2":[1,2,3]},{"f1":5,"f2":[4,5,6]}]}
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{"b":"a2","c":4,"z":[{"f1":2,"f2":[1,2,3]},{"f1":4,"f2":[4,5,6]}]}
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{"b":"a2","c":5,"z":[{"f1":2,"f2":[1,2,3]},{"f1":5,"f2":[4,5,6]}]}
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(4 rows)
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SELECT row_to_json(q,true)
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FROM (SELECT $$a$$ || x AS b,
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y AS c,
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ARRAY[ROW(x.*,ARRAY[1,2,3]),
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ROW(y.*,ARRAY[4,5,6])] AS z
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FROM generate_series(1,2) x,
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generate_series(4,5) y) q;
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row_to_json
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-----------------------------------------------------
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{"b":"a1", +
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"c":4, +
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"z":[{"f1":1,"f2":[1,2,3]},{"f1":4,"f2":[4,5,6]}]}
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{"b":"a1", +
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"c":5, +
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"z":[{"f1":1,"f2":[1,2,3]},{"f1":5,"f2":[4,5,6]}]}
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{"b":"a2", +
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"c":4, +
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"z":[{"f1":2,"f2":[1,2,3]},{"f1":4,"f2":[4,5,6]}]}
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{"b":"a2", +
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"c":5, +
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"z":[{"f1":2,"f2":[1,2,3]},{"f1":5,"f2":[4,5,6]}]}
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(4 rows)
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CREATE TEMP TABLE rows AS
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SELECT x, 'txt' || x as y
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FROM generate_series(1,3) AS x;
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SELECT row_to_json(q,true)
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FROM rows q;
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row_to_json
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--------------
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{"x":1, +
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"y":"txt1"}
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{"x":2, +
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"y":"txt2"}
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{"x":3, +
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"y":"txt3"}
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(3 rows)
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SELECT row_to_json(row((select array_agg(x) as d from generate_series(5,10) x)),false);
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row_to_json
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-----------------------
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{"f1":[5,6,7,8,9,10]}
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(1 row)
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-- anyarray column
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analyze rows;
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select attname, to_json(histogram_bounds) histogram_bounds
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from pg_stats
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where tablename = 'rows' and
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schemaname = pg_my_temp_schema()::regnamespace::text
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order by 1;
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attname | histogram_bounds
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---------+------------------------
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x | [1,2,3]
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y | ["txt1","txt2","txt3"]
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(2 rows)
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-- to_json, timestamps
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select to_json(timestamp '2014-05-28 12:22:35.614298');
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to_json
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------------------------------
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"2014-05-28T12:22:35.614298"
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(1 row)
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BEGIN;
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SET LOCAL TIME ZONE 10.5;
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select to_json(timestamptz '2014-05-28 12:22:35.614298-04');
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to_json
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------------------------------------
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"2014-05-29T02:52:35.614298+10:30"
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(1 row)
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SET LOCAL TIME ZONE -8;
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select to_json(timestamptz '2014-05-28 12:22:35.614298-04');
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to_json
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------------------------------------
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"2014-05-28T08:22:35.614298-08:00"
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(1 row)
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COMMIT;
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select to_json(date '2014-05-28');
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to_json
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--------------
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"2014-05-28"
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(1 row)
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select to_json(date 'Infinity');
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to_json
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|
------------
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"infinity"
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|
(1 row)
|
|
|
|
select to_json(date '-Infinity');
|
|
to_json
|
|
-------------
|
|
"-infinity"
|
|
(1 row)
|
|
|
|
select to_json(timestamp 'Infinity');
|
|
to_json
|
|
------------
|
|
"infinity"
|
|
(1 row)
|
|
|
|
select to_json(timestamp '-Infinity');
|
|
to_json
|
|
-------------
|
|
"-infinity"
|
|
(1 row)
|
|
|
|
select to_json(timestamptz 'Infinity');
|
|
to_json
|
|
------------
|
|
"infinity"
|
|
(1 row)
|
|
|
|
select to_json(timestamptz '-Infinity');
|
|
to_json
|
|
-------------
|
|
"-infinity"
|
|
(1 row)
|
|
|
|
--json_agg
|
|
SELECT json_agg(q)
|
|
FROM ( SELECT $$a$$ || x AS b, y AS c,
|
|
ARRAY[ROW(x.*,ARRAY[1,2,3]),
|
|
ROW(y.*,ARRAY[4,5,6])] AS z
|
|
FROM generate_series(1,2) x,
|
|
generate_series(4,5) y) q;
|
|
json_agg
|
|
-----------------------------------------------------------------------
|
|
[{"b":"a1","c":4,"z":[{"f1":1,"f2":[1,2,3]},{"f1":4,"f2":[4,5,6]}]}, +
|
|
{"b":"a1","c":5,"z":[{"f1":1,"f2":[1,2,3]},{"f1":5,"f2":[4,5,6]}]}, +
|
|
{"b":"a2","c":4,"z":[{"f1":2,"f2":[1,2,3]},{"f1":4,"f2":[4,5,6]}]}, +
|
|
{"b":"a2","c":5,"z":[{"f1":2,"f2":[1,2,3]},{"f1":5,"f2":[4,5,6]}]}]
|
|
(1 row)
|
|
|
|
SELECT json_agg(q ORDER BY x, y)
|
|
FROM rows q;
|
|
json_agg
|
|
-----------------------
|
|
[{"x":1,"y":"txt1"}, +
|
|
{"x":2,"y":"txt2"}, +
|
|
{"x":3,"y":"txt3"}]
|
|
(1 row)
|
|
|
|
UPDATE rows SET x = NULL WHERE x = 1;
|
|
SELECT json_agg(q ORDER BY x NULLS FIRST, y)
|
|
FROM rows q;
|
|
json_agg
|
|
--------------------------
|
|
[{"x":null,"y":"txt1"}, +
|
|
{"x":2,"y":"txt2"}, +
|
|
{"x":3,"y":"txt3"}]
|
|
(1 row)
|
|
|
|
-- non-numeric output
|
|
SELECT row_to_json(q)
|
|
FROM (SELECT 'NaN'::float8 AS "float8field") q;
|
|
row_to_json
|
|
-----------------------
|
|
{"float8field":"NaN"}
|
|
(1 row)
|
|
|
|
SELECT row_to_json(q)
|
|
FROM (SELECT 'Infinity'::float8 AS "float8field") q;
|
|
row_to_json
|
|
----------------------------
|
|
{"float8field":"Infinity"}
|
|
(1 row)
|
|
|
|
SELECT row_to_json(q)
|
|
FROM (SELECT '-Infinity'::float8 AS "float8field") q;
|
|
row_to_json
|
|
-----------------------------
|
|
{"float8field":"-Infinity"}
|
|
(1 row)
|
|
|
|
-- json input
|
|
SELECT row_to_json(q)
|
|
FROM (SELECT '{"a":1,"b": [2,3,4,"d","e","f"],"c":{"p":1,"q":2}}'::json AS "jsonfield") q;
|
|
row_to_json
|
|
------------------------------------------------------------------
|
|
{"jsonfield":{"a":1,"b": [2,3,4,"d","e","f"],"c":{"p":1,"q":2}}}
|
|
(1 row)
|
|
|
|
-- json extraction functions
|
|
CREATE TEMP TABLE test_json (
|
|
json_type text,
|
|
test_json json
|
|
);
|
|
INSERT INTO test_json VALUES
|
|
('scalar','"a scalar"'),
|
|
('array','["zero", "one","two",null,"four","five", [1,2,3],{"f1":9}]'),
|
|
('object','{"field1":"val1","field2":"val2","field3":null, "field4": 4, "field5": [1,2,3], "field6": {"f1":9}}');
|
|
SELECT test_json -> 'x'
|
|
FROM test_json
|
|
WHERE json_type = 'scalar';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
SELECT test_json -> 'x'
|
|
FROM test_json
|
|
WHERE json_type = 'array';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
SELECT test_json -> 'x'
|
|
FROM test_json
|
|
WHERE json_type = 'object';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
SELECT test_json->'field2'
|
|
FROM test_json
|
|
WHERE json_type = 'object';
|
|
?column?
|
|
----------
|
|
"val2"
|
|
(1 row)
|
|
|
|
SELECT test_json->>'field2'
|
|
FROM test_json
|
|
WHERE json_type = 'object';
|
|
?column?
|
|
----------
|
|
val2
|
|
(1 row)
|
|
|
|
SELECT test_json -> 2
|
|
FROM test_json
|
|
WHERE json_type = 'scalar';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
SELECT test_json -> 2
|
|
FROM test_json
|
|
WHERE json_type = 'array';
|
|
?column?
|
|
----------
|
|
"two"
|
|
(1 row)
|
|
|
|
SELECT test_json -> -1
|
|
FROM test_json
|
|
WHERE json_type = 'array';
|
|
?column?
|
|
----------
|
|
{"f1":9}
|
|
(1 row)
|
|
|
|
SELECT test_json -> 2
|
|
FROM test_json
|
|
WHERE json_type = 'object';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
SELECT test_json->>2
|
|
FROM test_json
|
|
WHERE json_type = 'array';
|
|
?column?
|
|
----------
|
|
two
|
|
(1 row)
|
|
|
|
SELECT test_json ->> 6 FROM test_json WHERE json_type = 'array';
|
|
?column?
|
|
----------
|
|
[1,2,3]
|
|
(1 row)
|
|
|
|
SELECT test_json ->> 7 FROM test_json WHERE json_type = 'array';
|
|
?column?
|
|
----------
|
|
{"f1":9}
|
|
(1 row)
|
|
|
|
SELECT test_json ->> 'field4' FROM test_json WHERE json_type = 'object';
|
|
?column?
|
|
----------
|
|
4
|
|
(1 row)
|
|
|
|
SELECT test_json ->> 'field5' FROM test_json WHERE json_type = 'object';
|
|
?column?
|
|
----------
|
|
[1,2,3]
|
|
(1 row)
|
|
|
|
SELECT test_json ->> 'field6' FROM test_json WHERE json_type = 'object';
|
|
?column?
|
|
----------
|
|
{"f1":9}
|
|
(1 row)
|
|
|
|
SELECT json_object_keys(test_json)
|
|
FROM test_json
|
|
WHERE json_type = 'scalar';
|
|
ERROR: cannot call json_object_keys on a scalar
|
|
SELECT json_object_keys(test_json)
|
|
FROM test_json
|
|
WHERE json_type = 'array';
|
|
ERROR: cannot call json_object_keys on an array
|
|
SELECT json_object_keys(test_json)
|
|
FROM test_json
|
|
WHERE json_type = 'object';
|
|
json_object_keys
|
|
------------------
|
|
field1
|
|
field2
|
|
field3
|
|
field4
|
|
field5
|
|
field6
|
|
(6 rows)
|
|
|
|
-- test extending object_keys resultset - initial resultset size is 256
|
|
select count(*) from
|
|
(select json_object_keys(json_object(array_agg(g)))
|
|
from (select unnest(array['f'||n,n::text])as g
|
|
from generate_series(1,300) as n) x ) y;
|
|
count
|
|
-------
|
|
300
|
|
(1 row)
|
|
|
|
-- nulls
|
|
select (test_json->'field3') is null as expect_false
|
|
from test_json
|
|
where json_type = 'object';
|
|
expect_false
|
|
--------------
|
|
f
|
|
(1 row)
|
|
|
|
select (test_json->>'field3') is null as expect_true
|
|
from test_json
|
|
where json_type = 'object';
|
|
expect_true
|
|
-------------
|
|
t
|
|
(1 row)
|
|
|
|
select (test_json->3) is null as expect_false
|
|
from test_json
|
|
where json_type = 'array';
|
|
expect_false
|
|
--------------
|
|
f
|
|
(1 row)
|
|
|
|
select (test_json->>3) is null as expect_true
|
|
from test_json
|
|
where json_type = 'array';
|
|
expect_true
|
|
-------------
|
|
t
|
|
(1 row)
|
|
|
|
-- corner cases
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> null::text;
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> null::int;
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> 1;
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> -1;
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> 'z';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json -> '';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": "cc"}]'::json -> 1;
|
|
?column?
|
|
-------------
|
|
{"b": "cc"}
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": "cc"}]'::json -> 3;
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": "cc"}]'::json -> 'z';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": "c", "b": null}'::json -> 'b';
|
|
?column?
|
|
----------
|
|
null
|
|
(1 row)
|
|
|
|
select '"foo"'::json -> 1;
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '"foo"'::json -> 'z';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json ->> null::text;
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json ->> null::int;
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json ->> 1;
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json ->> 'z';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json ->> '';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": "cc"}]'::json ->> 1;
|
|
?column?
|
|
-------------
|
|
{"b": "cc"}
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": "cc"}]'::json ->> 3;
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": "cc"}]'::json ->> 'z';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": "c", "b": null}'::json ->> 'b';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '"foo"'::json ->> 1;
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '"foo"'::json ->> 'z';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
-- array length
|
|
SELECT json_array_length('[1,2,3,{"f1":1,"f2":[5,6]},4]');
|
|
json_array_length
|
|
-------------------
|
|
5
|
|
(1 row)
|
|
|
|
SELECT json_array_length('[]');
|
|
json_array_length
|
|
-------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT json_array_length('{"f1":1,"f2":[5,6]}');
|
|
ERROR: cannot get array length of a non-array
|
|
SELECT json_array_length('4');
|
|
ERROR: cannot get array length of a scalar
|
|
-- each
|
|
select json_each('{"f1":[1,2,3],"f2":{"f3":1},"f4":null}');
|
|
json_each
|
|
-------------------
|
|
(f1,"[1,2,3]")
|
|
(f2,"{""f3"":1}")
|
|
(f4,null)
|
|
(3 rows)
|
|
|
|
select * from json_each('{"f1":[1,2,3],"f2":{"f3":1},"f4":null,"f5":99,"f6":"stringy"}') q;
|
|
key | value
|
|
-----+-----------
|
|
f1 | [1,2,3]
|
|
f2 | {"f3":1}
|
|
f4 | null
|
|
f5 | 99
|
|
f6 | "stringy"
|
|
(5 rows)
|
|
|
|
select json_each_text('{"f1":[1,2,3],"f2":{"f3":1},"f4":null,"f5":"null"}');
|
|
json_each_text
|
|
-------------------
|
|
(f1,"[1,2,3]")
|
|
(f2,"{""f3"":1}")
|
|
(f4,)
|
|
(f5,null)
|
|
(4 rows)
|
|
|
|
select * from json_each_text('{"f1":[1,2,3],"f2":{"f3":1},"f4":null,"f5":99,"f6":"stringy"}') q;
|
|
key | value
|
|
-----+----------
|
|
f1 | [1,2,3]
|
|
f2 | {"f3":1}
|
|
f4 |
|
|
f5 | 99
|
|
f6 | stringy
|
|
(5 rows)
|
|
|
|
-- extract_path, extract_path_as_text
|
|
select json_extract_path('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f4','f6');
|
|
json_extract_path
|
|
-------------------
|
|
"stringy"
|
|
(1 row)
|
|
|
|
select json_extract_path('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f2');
|
|
json_extract_path
|
|
-------------------
|
|
{"f3":1}
|
|
(1 row)
|
|
|
|
select json_extract_path('{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}','f2',0::text);
|
|
json_extract_path
|
|
-------------------
|
|
"f3"
|
|
(1 row)
|
|
|
|
select json_extract_path('{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}','f2',1::text);
|
|
json_extract_path
|
|
-------------------
|
|
1
|
|
(1 row)
|
|
|
|
select json_extract_path_text('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f4','f6');
|
|
json_extract_path_text
|
|
------------------------
|
|
stringy
|
|
(1 row)
|
|
|
|
select json_extract_path_text('{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}','f2');
|
|
json_extract_path_text
|
|
------------------------
|
|
{"f3":1}
|
|
(1 row)
|
|
|
|
select json_extract_path_text('{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}','f2',0::text);
|
|
json_extract_path_text
|
|
------------------------
|
|
f3
|
|
(1 row)
|
|
|
|
select json_extract_path_text('{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}','f2',1::text);
|
|
json_extract_path_text
|
|
------------------------
|
|
1
|
|
(1 row)
|
|
|
|
-- extract_path nulls
|
|
select json_extract_path('{"f2":{"f3":1},"f4":{"f5":null,"f6":"stringy"}}','f4','f5') is null as expect_false;
|
|
expect_false
|
|
--------------
|
|
f
|
|
(1 row)
|
|
|
|
select json_extract_path_text('{"f2":{"f3":1},"f4":{"f5":null,"f6":"stringy"}}','f4','f5') is null as expect_true;
|
|
expect_true
|
|
-------------
|
|
t
|
|
(1 row)
|
|
|
|
select json_extract_path('{"f2":{"f3":1},"f4":[0,1,2,null]}','f4','3') is null as expect_false;
|
|
expect_false
|
|
--------------
|
|
f
|
|
(1 row)
|
|
|
|
select json_extract_path_text('{"f2":{"f3":1},"f4":[0,1,2,null]}','f4','3') is null as expect_true;
|
|
expect_true
|
|
-------------
|
|
t
|
|
(1 row)
|
|
|
|
-- extract_path operators
|
|
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f4','f6'];
|
|
?column?
|
|
-----------
|
|
"stringy"
|
|
(1 row)
|
|
|
|
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2'];
|
|
?column?
|
|
----------
|
|
{"f3":1}
|
|
(1 row)
|
|
|
|
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2','0'];
|
|
?column?
|
|
----------
|
|
"f3"
|
|
(1 row)
|
|
|
|
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>array['f2','1'];
|
|
?column?
|
|
----------
|
|
1
|
|
(1 row)
|
|
|
|
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f4','f6'];
|
|
?column?
|
|
----------
|
|
stringy
|
|
(1 row)
|
|
|
|
select '{"f2":{"f3":1},"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2'];
|
|
?column?
|
|
----------
|
|
{"f3":1}
|
|
(1 row)
|
|
|
|
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','0'];
|
|
?column?
|
|
----------
|
|
f3
|
|
(1 row)
|
|
|
|
select '{"f2":["f3",1],"f4":{"f5":99,"f6":"stringy"}}'::json#>>array['f2','1'];
|
|
?column?
|
|
----------
|
|
1
|
|
(1 row)
|
|
|
|
-- corner cases for same
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #> '{}';
|
|
?column?
|
|
---------------------------
|
|
{"a": {"b":{"c": "foo"}}}
|
|
(1 row)
|
|
|
|
select '[1,2,3]'::json #> '{}';
|
|
?column?
|
|
----------
|
|
[1,2,3]
|
|
(1 row)
|
|
|
|
select '"foo"'::json #> '{}';
|
|
?column?
|
|
----------
|
|
"foo"
|
|
(1 row)
|
|
|
|
select '42'::json #> '{}';
|
|
?column?
|
|
----------
|
|
42
|
|
(1 row)
|
|
|
|
select 'null'::json #> '{}';
|
|
?column?
|
|
----------
|
|
null
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a'];
|
|
?column?
|
|
--------------------
|
|
{"b":{"c": "foo"}}
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a', null];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a', ''];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b'];
|
|
?column?
|
|
--------------
|
|
{"c": "foo"}
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b','c'];
|
|
?column?
|
|
----------
|
|
"foo"
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','b','c','d'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #> array['a','z','c'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #> array['a','1','b'];
|
|
?column?
|
|
----------
|
|
"cc"
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #> array['a','z','b'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": "cc"}]'::json #> array['1','b'];
|
|
?column?
|
|
----------
|
|
"cc"
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": "cc"}]'::json #> array['z','b'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": null}]'::json #> array['1','b'];
|
|
?column?
|
|
----------
|
|
null
|
|
(1 row)
|
|
|
|
select '"foo"'::json #> array['z'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '42'::json #> array['f2'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '42'::json #> array['0'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #>> '{}';
|
|
?column?
|
|
---------------------------
|
|
{"a": {"b":{"c": "foo"}}}
|
|
(1 row)
|
|
|
|
select '[1,2,3]'::json #>> '{}';
|
|
?column?
|
|
----------
|
|
[1,2,3]
|
|
(1 row)
|
|
|
|
select '"foo"'::json #>> '{}';
|
|
?column?
|
|
----------
|
|
foo
|
|
(1 row)
|
|
|
|
select '42'::json #>> '{}';
|
|
?column?
|
|
----------
|
|
42
|
|
(1 row)
|
|
|
|
select 'null'::json #>> '{}';
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a'];
|
|
?column?
|
|
--------------------
|
|
{"b":{"c": "foo"}}
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a', null];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a', ''];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b'];
|
|
?column?
|
|
--------------
|
|
{"c": "foo"}
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b','c'];
|
|
?column?
|
|
----------
|
|
foo
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','b','c','d'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": {"b":{"c": "foo"}}}'::json #>> array['a','z','c'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #>> array['a','1','b'];
|
|
?column?
|
|
----------
|
|
cc
|
|
(1 row)
|
|
|
|
select '{"a": [{"b": "c"}, {"b": "cc"}]}'::json #>> array['a','z','b'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": "cc"}]'::json #>> array['1','b'];
|
|
?column?
|
|
----------
|
|
cc
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": "cc"}]'::json #>> array['z','b'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '[{"b": "c"}, {"b": null}]'::json #>> array['1','b'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '"foo"'::json #>> array['z'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '42'::json #>> array['f2'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
select '42'::json #>> array['0'];
|
|
?column?
|
|
----------
|
|
|
|
(1 row)
|
|
|
|
-- array_elements
|
|
select json_array_elements('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false,"stringy"]');
|
|
json_array_elements
|
|
-----------------------
|
|
1
|
|
true
|
|
[1,[2,3]]
|
|
null
|
|
{"f1":1,"f2":[7,8,9]}
|
|
false
|
|
"stringy"
|
|
(7 rows)
|
|
|
|
select * from json_array_elements('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false,"stringy"]') q;
|
|
value
|
|
-----------------------
|
|
1
|
|
true
|
|
[1,[2,3]]
|
|
null
|
|
{"f1":1,"f2":[7,8,9]}
|
|
false
|
|
"stringy"
|
|
(7 rows)
|
|
|
|
select json_array_elements_text('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false,"stringy"]');
|
|
json_array_elements_text
|
|
--------------------------
|
|
1
|
|
true
|
|
[1,[2,3]]
|
|
|
|
{"f1":1,"f2":[7,8,9]}
|
|
false
|
|
stringy
|
|
(7 rows)
|
|
|
|
select * from json_array_elements_text('[1,true,[1,[2,3]],null,{"f1":1,"f2":[7,8,9]},false,"stringy"]') q;
|
|
value
|
|
-----------------------
|
|
1
|
|
true
|
|
[1,[2,3]]
|
|
|
|
{"f1":1,"f2":[7,8,9]}
|
|
false
|
|
stringy
|
|
(7 rows)
|
|
|
|
-- populate_record
|
|
create type jpop as (a text, b int, c timestamp);
|
|
CREATE DOMAIN js_int_not_null AS int NOT NULL;
|
|
CREATE DOMAIN js_int_array_1d AS int[] CHECK(array_length(VALUE, 1) = 3);
|
|
CREATE DOMAIN js_int_array_2d AS int[][] CHECK(array_length(VALUE, 2) = 3);
|
|
create type j_unordered_pair as (x int, y int);
|
|
create domain j_ordered_pair as j_unordered_pair check((value).x <= (value).y);
|
|
CREATE TYPE jsrec AS (
|
|
i int,
|
|
ia _int4,
|
|
ia1 int[],
|
|
ia2 int[][],
|
|
ia3 int[][][],
|
|
ia1d js_int_array_1d,
|
|
ia2d js_int_array_2d,
|
|
t text,
|
|
ta text[],
|
|
c char(10),
|
|
ca char(10)[],
|
|
ts timestamp,
|
|
js json,
|
|
jsb jsonb,
|
|
jsa json[],
|
|
rec jpop,
|
|
reca jpop[]
|
|
);
|
|
CREATE TYPE jsrec_i_not_null AS (
|
|
i js_int_not_null
|
|
);
|
|
select * from json_populate_record(null::jpop,'{"a":"blurfl","x":43.2}') q;
|
|
a | b | c
|
|
--------+---+---
|
|
blurfl | |
|
|
(1 row)
|
|
|
|
select * from json_populate_record(row('x',3,'2012-12-31 15:30:56')::jpop,'{"a":"blurfl","x":43.2}') q;
|
|
a | b | c
|
|
--------+---+--------------------------
|
|
blurfl | 3 | Mon Dec 31 15:30:56 2012
|
|
(1 row)
|
|
|
|
select * from json_populate_record(null::jpop,'{"a":"blurfl","x":43.2}') q;
|
|
a | b | c
|
|
--------+---+---
|
|
blurfl | |
|
|
(1 row)
|
|
|
|
select * from json_populate_record(row('x',3,'2012-12-31 15:30:56')::jpop,'{"a":"blurfl","x":43.2}') q;
|
|
a | b | c
|
|
--------+---+--------------------------
|
|
blurfl | 3 | Mon Dec 31 15:30:56 2012
|
|
(1 row)
|
|
|
|
select * from json_populate_record(null::jpop,'{"a":[100,200,false],"x":43.2}') q;
|
|
a | b | c
|
|
-----------------+---+---
|
|
[100,200,false] | |
|
|
(1 row)
|
|
|
|
select * from json_populate_record(row('x',3,'2012-12-31 15:30:56')::jpop,'{"a":[100,200,false],"x":43.2}') q;
|
|
a | b | c
|
|
-----------------+---+--------------------------
|
|
[100,200,false] | 3 | Mon Dec 31 15:30:56 2012
|
|
(1 row)
|
|
|
|
select * from json_populate_record(row('x',3,'2012-12-31 15:30:56')::jpop,'{"c":[100,200,false],"x":43.2}') q;
|
|
ERROR: invalid input syntax for type timestamp: "[100,200,false]"
|
|
select * from json_populate_record(row('x',3,'2012-12-31 15:30:56')::jpop,'{}') q;
|
|
a | b | c
|
|
---+---+--------------------------
|
|
x | 3 | Mon Dec 31 15:30:56 2012
|
|
(1 row)
|
|
|
|
SELECT i FROM json_populate_record(NULL::jsrec_i_not_null, '{"x": 43.2}') q;
|
|
ERROR: domain js_int_not_null does not allow null values
|
|
SELECT i FROM json_populate_record(NULL::jsrec_i_not_null, '{"i": null}') q;
|
|
ERROR: domain js_int_not_null does not allow null values
|
|
SELECT i FROM json_populate_record(NULL::jsrec_i_not_null, '{"i": 12345}') q;
|
|
i
|
|
-------
|
|
12345
|
|
(1 row)
|
|
|
|
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": null}') q;
|
|
ia
|
|
----
|
|
|
|
(1 row)
|
|
|
|
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": 123}') q;
|
|
ERROR: expected JSON array
|
|
HINT: See the value of key "ia".
|
|
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": [1, "2", null, 4]}') q;
|
|
ia
|
|
--------------
|
|
{1,2,NULL,4}
|
|
(1 row)
|
|
|
|
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": [[1, 2], [3, 4]]}') q;
|
|
ia
|
|
---------------
|
|
{{1,2},{3,4}}
|
|
(1 row)
|
|
|
|
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": [[1], 2]}') q;
|
|
ERROR: expected JSON array
|
|
HINT: See the array element [1] of key "ia".
|
|
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": [[1], [2, 3]]}') q;
|
|
ERROR: malformed JSON array
|
|
DETAIL: Multidimensional arrays must have sub-arrays with matching dimensions.
|
|
SELECT ia FROM json_populate_record(NULL::jsrec, '{"ia": "{1,2,3}"}') q;
|
|
ia
|
|
---------
|
|
{1,2,3}
|
|
(1 row)
|
|
|
|
SELECT ia1 FROM json_populate_record(NULL::jsrec, '{"ia1": null}') q;
|
|
ia1
|
|
-----
|
|
|
|
(1 row)
|
|
|
|
SELECT ia1 FROM json_populate_record(NULL::jsrec, '{"ia1": 123}') q;
|
|
ERROR: expected JSON array
|
|
HINT: See the value of key "ia1".
|
|
SELECT ia1 FROM json_populate_record(NULL::jsrec, '{"ia1": [1, "2", null, 4]}') q;
|
|
ia1
|
|
--------------
|
|
{1,2,NULL,4}
|
|
(1 row)
|
|
|
|
SELECT ia1 FROM json_populate_record(NULL::jsrec, '{"ia1": [[1, 2, 3]]}') q;
|
|
ia1
|
|
-----------
|
|
{{1,2,3}}
|
|
(1 row)
|
|
|
|
SELECT ia1d FROM json_populate_record(NULL::jsrec, '{"ia1d": null}') q;
|
|
ia1d
|
|
------
|
|
|
|
(1 row)
|
|
|
|
SELECT ia1d FROM json_populate_record(NULL::jsrec, '{"ia1d": 123}') q;
|
|
ERROR: expected JSON array
|
|
HINT: See the value of key "ia1d".
|
|
SELECT ia1d FROM json_populate_record(NULL::jsrec, '{"ia1d": [1, "2", null, 4]}') q;
|
|
ERROR: value for domain js_int_array_1d violates check constraint "js_int_array_1d_check"
|
|
SELECT ia1d FROM json_populate_record(NULL::jsrec, '{"ia1d": [1, "2", null]}') q;
|
|
ia1d
|
|
------------
|
|
{1,2,NULL}
|
|
(1 row)
|
|
|
|
SELECT ia2 FROM json_populate_record(NULL::jsrec, '{"ia2": [1, "2", null, 4]}') q;
|
|
ia2
|
|
--------------
|
|
{1,2,NULL,4}
|
|
(1 row)
|
|
|
|
SELECT ia2 FROM json_populate_record(NULL::jsrec, '{"ia2": [[1, 2], [null, 4]]}') q;
|
|
ia2
|
|
------------------
|
|
{{1,2},{NULL,4}}
|
|
(1 row)
|
|
|
|
SELECT ia2 FROM json_populate_record(NULL::jsrec, '{"ia2": [[], []]}') q;
|
|
ia2
|
|
-----
|
|
{}
|
|
(1 row)
|
|
|
|
SELECT ia2 FROM json_populate_record(NULL::jsrec, '{"ia2": [[1, 2], [3]]}') q;
|
|
ERROR: malformed JSON array
|
|
DETAIL: Multidimensional arrays must have sub-arrays with matching dimensions.
|
|
SELECT ia2 FROM json_populate_record(NULL::jsrec, '{"ia2": [[1, 2], 3, 4]}') q;
|
|
ERROR: expected JSON array
|
|
HINT: See the array element [1] of key "ia2".
|
|
SELECT ia2d FROM json_populate_record(NULL::jsrec, '{"ia2d": [[1, "2"], [null, 4]]}') q;
|
|
ERROR: value for domain js_int_array_2d violates check constraint "js_int_array_2d_check"
|
|
SELECT ia2d FROM json_populate_record(NULL::jsrec, '{"ia2d": [[1, "2", 3], [null, 5, 6]]}') q;
|
|
ia2d
|
|
----------------------
|
|
{{1,2,3},{NULL,5,6}}
|
|
(1 row)
|
|
|
|
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [1, "2", null, 4]}') q;
|
|
ia3
|
|
--------------
|
|
{1,2,NULL,4}
|
|
(1 row)
|
|
|
|
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [[1, 2], [null, 4]]}') q;
|
|
ia3
|
|
------------------
|
|
{{1,2},{NULL,4}}
|
|
(1 row)
|
|
|
|
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [ [[], []], [[], []], [[], []] ]}') q;
|
|
ia3
|
|
-----
|
|
{}
|
|
(1 row)
|
|
|
|
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [ [[1, 2]], [[3, 4]] ]}') q;
|
|
ia3
|
|
-------------------
|
|
{{{1,2}},{{3,4}}}
|
|
(1 row)
|
|
|
|
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [ [[1, 2], [3, 4]], [[5, 6], [7, 8]] ]}') q;
|
|
ia3
|
|
-------------------------------
|
|
{{{1,2},{3,4}},{{5,6},{7,8}}}
|
|
(1 row)
|
|
|
|
SELECT ia3 FROM json_populate_record(NULL::jsrec, '{"ia3": [ [[1, 2], [3, 4]], [[5, 6], [7, 8], [9, 10]] ]}') q;
|
|
ERROR: malformed JSON array
|
|
DETAIL: Multidimensional arrays must have sub-arrays with matching dimensions.
|
|
SELECT ta FROM json_populate_record(NULL::jsrec, '{"ta": null}') q;
|
|
ta
|
|
----
|
|
|
|
(1 row)
|
|
|
|
SELECT ta FROM json_populate_record(NULL::jsrec, '{"ta": 123}') q;
|
|
ERROR: expected JSON array
|
|
HINT: See the value of key "ta".
|
|
SELECT ta FROM json_populate_record(NULL::jsrec, '{"ta": [1, "2", null, 4]}') q;
|
|
ta
|
|
--------------
|
|
{1,2,NULL,4}
|
|
(1 row)
|
|
|
|
SELECT ta FROM json_populate_record(NULL::jsrec, '{"ta": [[1, 2, 3], {"k": "v"}]}') q;
|
|
ERROR: expected JSON array
|
|
HINT: See the array element [1] of key "ta".
|
|
SELECT c FROM json_populate_record(NULL::jsrec, '{"c": null}') q;
|
|
c
|
|
---
|
|
|
|
(1 row)
|
|
|
|
SELECT c FROM json_populate_record(NULL::jsrec, '{"c": "aaa"}') q;
|
|
c
|
|
------------
|
|
aaa
|
|
(1 row)
|
|
|
|
SELECT c FROM json_populate_record(NULL::jsrec, '{"c": "aaaaaaaaaa"}') q;
|
|
c
|
|
------------
|
|
aaaaaaaaaa
|
|
(1 row)
|
|
|
|
SELECT c FROM json_populate_record(NULL::jsrec, '{"c": "aaaaaaaaaaaaa"}') q;
|
|
ERROR: value too long for type character(10)
|
|
SELECT ca FROM json_populate_record(NULL::jsrec, '{"ca": null}') q;
|
|
ca
|
|
----
|
|
|
|
(1 row)
|
|
|
|
SELECT ca FROM json_populate_record(NULL::jsrec, '{"ca": 123}') q;
|
|
ERROR: expected JSON array
|
|
HINT: See the value of key "ca".
|
|
SELECT ca FROM json_populate_record(NULL::jsrec, '{"ca": [1, "2", null, 4]}') q;
|
|
ca
|
|
-----------------------------------------------
|
|
{"1 ","2 ",NULL,"4 "}
|
|
(1 row)
|
|
|
|
SELECT ca FROM json_populate_record(NULL::jsrec, '{"ca": ["aaaaaaaaaaaaaaaa"]}') q;
|
|
ERROR: value too long for type character(10)
|
|
SELECT ca FROM json_populate_record(NULL::jsrec, '{"ca": [[1, 2, 3], {"k": "v"}]}') q;
|
|
ERROR: expected JSON array
|
|
HINT: See the array element [1] of key "ca".
|
|
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": null}') q;
|
|
js
|
|
----
|
|
|
|
(1 row)
|
|
|
|
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": true}') q;
|
|
js
|
|
------
|
|
true
|
|
(1 row)
|
|
|
|
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": 123.45}') q;
|
|
js
|
|
--------
|
|
123.45
|
|
(1 row)
|
|
|
|
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": "123.45"}') q;
|
|
js
|
|
----------
|
|
"123.45"
|
|
(1 row)
|
|
|
|
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": "abc"}') q;
|
|
js
|
|
-------
|
|
"abc"
|
|
(1 row)
|
|
|
|
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": [123, "123", null, {"key": "value"}]}') q;
|
|
js
|
|
--------------------------------------
|
|
[123, "123", null, {"key": "value"}]
|
|
(1 row)
|
|
|
|
SELECT js FROM json_populate_record(NULL::jsrec, '{"js": {"a": "bbb", "b": null, "c": 123.45}}') q;
|
|
js
|
|
--------------------------------------
|
|
{"a": "bbb", "b": null, "c": 123.45}
|
|
(1 row)
|
|
|
|
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": null}') q;
|
|
jsb
|
|
-----
|
|
|
|
(1 row)
|
|
|
|
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": true}') q;
|
|
jsb
|
|
------
|
|
true
|
|
(1 row)
|
|
|
|
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": 123.45}') q;
|
|
jsb
|
|
--------
|
|
123.45
|
|
(1 row)
|
|
|
|
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": "123.45"}') q;
|
|
jsb
|
|
----------
|
|
"123.45"
|
|
(1 row)
|
|
|
|
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": "abc"}') q;
|
|
jsb
|
|
-------
|
|
"abc"
|
|
(1 row)
|
|
|
|
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": [123, "123", null, {"key": "value"}]}') q;
|
|
jsb
|
|
--------------------------------------
|
|
[123, "123", null, {"key": "value"}]
|
|
(1 row)
|
|
|
|
SELECT jsb FROM json_populate_record(NULL::jsrec, '{"jsb": {"a": "bbb", "b": null, "c": 123.45}}') q;
|
|
jsb
|
|
--------------------------------------
|
|
{"a": "bbb", "b": null, "c": 123.45}
|
|
(1 row)
|
|
|
|
SELECT jsa FROM json_populate_record(NULL::jsrec, '{"jsa": null}') q;
|
|
jsa
|
|
-----
|
|
|
|
(1 row)
|
|
|
|
SELECT jsa FROM json_populate_record(NULL::jsrec, '{"jsa": 123}') q;
|
|
ERROR: expected JSON array
|
|
HINT: See the value of key "jsa".
|
|
SELECT jsa FROM json_populate_record(NULL::jsrec, '{"jsa": [1, "2", null, 4]}') q;
|
|
jsa
|
|
--------------------
|
|
{1,"\"2\"",NULL,4}
|
|
(1 row)
|
|
|
|
SELECT jsa FROM json_populate_record(NULL::jsrec, '{"jsa": ["aaa", null, [1, 2, "3", {}], { "k" : "v" }]}') q;
|
|
jsa
|
|
----------------------------------------------------------
|
|
{"\"aaa\"",NULL,"[1, 2, \"3\", {}]","{ \"k\" : \"v\" }"}
|
|
(1 row)
|
|
|
|
SELECT rec FROM json_populate_record(NULL::jsrec, '{"rec": 123}') q;
|
|
ERROR: cannot call populate_composite on a scalar
|
|
SELECT rec FROM json_populate_record(NULL::jsrec, '{"rec": [1, 2]}') q;
|
|
ERROR: cannot call populate_composite on an array
|
|
SELECT rec FROM json_populate_record(NULL::jsrec, '{"rec": {"a": "abc", "c": "01.02.2003", "x": 43.2}}') q;
|
|
rec
|
|
-----------------------------------
|
|
(abc,,"Thu Jan 02 00:00:00 2003")
|
|
(1 row)
|
|
|
|
SELECT rec FROM json_populate_record(NULL::jsrec, '{"rec": "(abc,42,01.02.2003)"}') q;
|
|
rec
|
|
-------------------------------------
|
|
(abc,42,"Thu Jan 02 00:00:00 2003")
|
|
(1 row)
|
|
|
|
SELECT reca FROM json_populate_record(NULL::jsrec, '{"reca": 123}') q;
|
|
ERROR: expected JSON array
|
|
HINT: See the value of key "reca".
|
|
SELECT reca FROM json_populate_record(NULL::jsrec, '{"reca": [1, 2]}') q;
|
|
ERROR: cannot call populate_composite on a scalar
|
|
SELECT reca FROM json_populate_record(NULL::jsrec, '{"reca": [{"a": "abc", "b": 456}, null, {"c": "01.02.2003", "x": 43.2}]}') q;
|
|
reca
|
|
--------------------------------------------------------
|
|
{"(abc,456,)",NULL,"(,,\"Thu Jan 02 00:00:00 2003\")"}
|
|
(1 row)
|
|
|
|
SELECT reca FROM json_populate_record(NULL::jsrec, '{"reca": ["(abc,42,01.02.2003)"]}') q;
|
|
reca
|
|
-------------------------------------------
|
|
{"(abc,42,\"Thu Jan 02 00:00:00 2003\")"}
|
|
(1 row)
|
|
|
|
SELECT reca FROM json_populate_record(NULL::jsrec, '{"reca": "{\"(abc,42,01.02.2003)\"}"}') q;
|
|
reca
|
|
-------------------------------------------
|
|
{"(abc,42,\"Thu Jan 02 00:00:00 2003\")"}
|
|
(1 row)
|
|
|
|
SELECT rec FROM json_populate_record(
|
|
row(NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
|
|
row('x',3,'2012-12-31 15:30:56')::jpop,NULL)::jsrec,
|
|
'{"rec": {"a": "abc", "c": "01.02.2003", "x": 43.2}}'
|
|
) q;
|
|
rec
|
|
------------------------------------
|
|
(abc,3,"Thu Jan 02 00:00:00 2003")
|
|
(1 row)
|
|
|
|
-- anonymous record type
|
|
SELECT json_populate_record(null::record, '{"x": 0, "y": 1}');
|
|
ERROR: could not determine row type for result of json_populate_record
|
|
HINT: Provide a non-null record argument, or call the function in the FROM clause using a column definition list.
|
|
SELECT json_populate_record(row(1,2), '{"f1": 0, "f2": 1}');
|
|
json_populate_record
|
|
----------------------
|
|
(0,1)
|
|
(1 row)
|
|
|
|
SELECT * FROM
|
|
json_populate_record(null::record, '{"x": 776}') AS (x int, y int);
|
|
x | y
|
|
-----+---
|
|
776 |
|
|
(1 row)
|
|
|
|
-- composite domain
|
|
SELECT json_populate_record(null::j_ordered_pair, '{"x": 0, "y": 1}');
|
|
json_populate_record
|
|
----------------------
|
|
(0,1)
|
|
(1 row)
|
|
|
|
SELECT json_populate_record(row(1,2)::j_ordered_pair, '{"x": 0}');
|
|
json_populate_record
|
|
----------------------
|
|
(0,2)
|
|
(1 row)
|
|
|
|
SELECT json_populate_record(row(1,2)::j_ordered_pair, '{"x": 1, "y": 0}');
|
|
ERROR: value for domain j_ordered_pair violates check constraint "j_ordered_pair_check"
|
|
-- populate_recordset
|
|
select * from json_populate_recordset(null::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
|
|
a | b | c
|
|
--------+---+--------------------------
|
|
blurfl | |
|
|
| 3 | Fri Jan 20 10:42:53 2012
|
|
(2 rows)
|
|
|
|
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
|
|
a | b | c
|
|
--------+----+--------------------------
|
|
blurfl | 99 |
|
|
def | 3 | Fri Jan 20 10:42:53 2012
|
|
(2 rows)
|
|
|
|
select * from json_populate_recordset(null::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
|
|
a | b | c
|
|
--------+---+--------------------------
|
|
blurfl | |
|
|
| 3 | Fri Jan 20 10:42:53 2012
|
|
(2 rows)
|
|
|
|
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
|
|
a | b | c
|
|
--------+----+--------------------------
|
|
blurfl | 99 |
|
|
def | 3 | Fri Jan 20 10:42:53 2012
|
|
(2 rows)
|
|
|
|
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":[100,200,300],"x":43.2},{"a":{"z":true},"b":3,"c":"2012-01-20 10:42:53"}]') q;
|
|
a | b | c
|
|
---------------+----+--------------------------
|
|
[100,200,300] | 99 |
|
|
{"z":true} | 3 | Fri Jan 20 10:42:53 2012
|
|
(2 rows)
|
|
|
|
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"c":[100,200,300],"x":43.2},{"a":{"z":true},"b":3,"c":"2012-01-20 10:42:53"}]') q;
|
|
ERROR: invalid input syntax for type timestamp: "[100,200,300]"
|
|
create type jpop2 as (a int, b json, c int, d int);
|
|
select * from json_populate_recordset(null::jpop2, '[{"a":2,"c":3,"b":{"z":4},"d":6}]') q;
|
|
a | b | c | d
|
|
---+---------+---+---
|
|
2 | {"z":4} | 3 | 6
|
|
(1 row)
|
|
|
|
select * from json_populate_recordset(null::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
|
|
a | b | c
|
|
--------+---+--------------------------
|
|
blurfl | |
|
|
| 3 | Fri Jan 20 10:42:53 2012
|
|
(2 rows)
|
|
|
|
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":"blurfl","x":43.2},{"b":3,"c":"2012-01-20 10:42:53"}]') q;
|
|
a | b | c
|
|
--------+----+--------------------------
|
|
blurfl | 99 |
|
|
def | 3 | Fri Jan 20 10:42:53 2012
|
|
(2 rows)
|
|
|
|
select * from json_populate_recordset(row('def',99,null)::jpop,'[{"a":[100,200,300],"x":43.2},{"a":{"z":true},"b":3,"c":"2012-01-20 10:42:53"}]') q;
|
|
a | b | c
|
|
---------------+----+--------------------------
|
|
[100,200,300] | 99 |
|
|
{"z":true} | 3 | Fri Jan 20 10:42:53 2012
|
|
(2 rows)
|
|
|
|
-- anonymous record type
|
|
SELECT json_populate_recordset(null::record, '[{"x": 0, "y": 1}]');
|
|
ERROR: could not determine row type for result of json_populate_recordset
|
|
HINT: Provide a non-null record argument, or call the function in the FROM clause using a column definition list.
|
|
SELECT json_populate_recordset(row(1,2), '[{"f1": 0, "f2": 1}]');
|
|
json_populate_recordset
|
|
-------------------------
|
|
(0,1)
|
|
(1 row)
|
|
|
|
SELECT i, json_populate_recordset(row(i,50), '[{"f1":"42"},{"f2":"43"}]')
|
|
FROM (VALUES (1),(2)) v(i);
|
|
i | json_populate_recordset
|
|
---+-------------------------
|
|
1 | (42,50)
|
|
1 | (1,43)
|
|
2 | (42,50)
|
|
2 | (2,43)
|
|
(4 rows)
|
|
|
|
SELECT * FROM
|
|
json_populate_recordset(null::record, '[{"x": 776}]') AS (x int, y int);
|
|
x | y
|
|
-----+---
|
|
776 |
|
|
(1 row)
|
|
|
|
-- empty array is a corner case
|
|
SELECT json_populate_recordset(null::record, '[]');
|
|
ERROR: could not determine row type for result of json_populate_recordset
|
|
HINT: Provide a non-null record argument, or call the function in the FROM clause using a column definition list.
|
|
SELECT json_populate_recordset(row(1,2), '[]');
|
|
json_populate_recordset
|
|
-------------------------
|
|
(0 rows)
|
|
|
|
SELECT * FROM json_populate_recordset(NULL::jpop,'[]') q;
|
|
a | b | c
|
|
---+---+---
|
|
(0 rows)
|
|
|
|
SELECT * FROM
|
|
json_populate_recordset(null::record, '[]') AS (x int, y int);
|
|
x | y
|
|
---+---
|
|
(0 rows)
|
|
|
|
-- composite domain
|
|
SELECT json_populate_recordset(null::j_ordered_pair, '[{"x": 0, "y": 1}]');
|
|
json_populate_recordset
|
|
-------------------------
|
|
(0,1)
|
|
(1 row)
|
|
|
|
SELECT json_populate_recordset(row(1,2)::j_ordered_pair, '[{"x": 0}, {"y": 3}]');
|
|
json_populate_recordset
|
|
-------------------------
|
|
(0,2)
|
|
(1,3)
|
|
(2 rows)
|
|
|
|
SELECT json_populate_recordset(row(1,2)::j_ordered_pair, '[{"x": 1, "y": 0}]');
|
|
ERROR: value for domain j_ordered_pair violates check constraint "j_ordered_pair_check"
|
|
-- negative cases where the wrong record type is supplied
|
|
select * from json_populate_recordset(row(0::int),'[{"a":"1","b":"2"},{"a":"3"}]') q (a text, b text);
|
|
ERROR: function return row and query-specified return row do not match
|
|
DETAIL: Returned row contains 1 attribute, but query expects 2.
|
|
select * from json_populate_recordset(row(0::int,0::int),'[{"a":"1","b":"2"},{"a":"3"}]') q (a text, b text);
|
|
ERROR: function return row and query-specified return row do not match
|
|
DETAIL: Returned type integer at ordinal position 1, but query expects text.
|
|
select * from json_populate_recordset(row(0::int,0::int,0::int),'[{"a":"1","b":"2"},{"a":"3"}]') q (a text, b text);
|
|
ERROR: function return row and query-specified return row do not match
|
|
DETAIL: Returned row contains 3 attributes, but query expects 2.
|
|
select * from json_populate_recordset(row(1000000000::int,50::int),'[{"b":"2"},{"a":"3"}]') q (a text, b text);
|
|
ERROR: function return row and query-specified return row do not match
|
|
DETAIL: Returned type integer at ordinal position 1, but query expects text.
|
|
-- test type info caching in json_populate_record()
|
|
CREATE TEMP TABLE jspoptest (js json);
|
|
INSERT INTO jspoptest
|
|
SELECT '{
|
|
"jsa": [1, "2", null, 4],
|
|
"rec": {"a": "abc", "c": "01.02.2003", "x": 43.2},
|
|
"reca": [{"a": "abc", "b": 456}, null, {"c": "01.02.2003", "x": 43.2}]
|
|
}'::json
|
|
FROM generate_series(1, 3);
|
|
SELECT (json_populate_record(NULL::jsrec, js)).* FROM jspoptest;
|
|
i | ia | ia1 | ia2 | ia3 | ia1d | ia2d | t | ta | c | ca | ts | js | jsb | jsa | rec | reca
|
|
---+----+-----+-----+-----+------+------+---+----+---+----+----+----+-----+--------------------+-----------------------------------+--------------------------------------------------------
|
|
| | | | | | | | | | | | | | {1,"\"2\"",NULL,4} | (abc,,"Thu Jan 02 00:00:00 2003") | {"(abc,456,)",NULL,"(,,\"Thu Jan 02 00:00:00 2003\")"}
|
|
| | | | | | | | | | | | | | {1,"\"2\"",NULL,4} | (abc,,"Thu Jan 02 00:00:00 2003") | {"(abc,456,)",NULL,"(,,\"Thu Jan 02 00:00:00 2003\")"}
|
|
| | | | | | | | | | | | | | {1,"\"2\"",NULL,4} | (abc,,"Thu Jan 02 00:00:00 2003") | {"(abc,456,)",NULL,"(,,\"Thu Jan 02 00:00:00 2003\")"}
|
|
(3 rows)
|
|
|
|
DROP TYPE jsrec;
|
|
DROP TYPE jsrec_i_not_null;
|
|
DROP DOMAIN js_int_not_null;
|
|
DROP DOMAIN js_int_array_1d;
|
|
DROP DOMAIN js_int_array_2d;
|
|
DROP DOMAIN j_ordered_pair;
|
|
DROP TYPE j_unordered_pair;
|
|
--json_typeof() function
|
|
select value, json_typeof(value)
|
|
from (values (json '123.4'),
|
|
(json '-1'),
|
|
(json '"foo"'),
|
|
(json 'true'),
|
|
(json 'false'),
|
|
(json 'null'),
|
|
(json '[1, 2, 3]'),
|
|
(json '[]'),
|
|
(json '{"x":"foo", "y":123}'),
|
|
(json '{}'),
|
|
(NULL::json))
|
|
as data(value);
|
|
value | json_typeof
|
|
----------------------+-------------
|
|
123.4 | number
|
|
-1 | number
|
|
"foo" | string
|
|
true | boolean
|
|
false | boolean
|
|
null | null
|
|
[1, 2, 3] | array
|
|
[] | array
|
|
{"x":"foo", "y":123} | object
|
|
{} | object
|
|
|
|
|
(11 rows)
|
|
|
|
-- json_build_array, json_build_object, json_object_agg
|
|
SELECT json_build_array('a',1,'b',1.2,'c',true,'d',null,'e',json '{"x": 3, "y": [1,2,3]}');
|
|
json_build_array
|
|
-----------------------------------------------------------------------
|
|
["a", 1, "b", 1.2, "c", true, "d", null, "e", {"x": 3, "y": [1,2,3]}]
|
|
(1 row)
|
|
|
|
SELECT json_build_array('a', NULL); -- ok
|
|
json_build_array
|
|
------------------
|
|
["a", null]
|
|
(1 row)
|
|
|
|
SELECT json_build_array(VARIADIC NULL::text[]); -- ok
|
|
json_build_array
|
|
------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT json_build_array(VARIADIC '{}'::text[]); -- ok
|
|
json_build_array
|
|
------------------
|
|
[]
|
|
(1 row)
|
|
|
|
SELECT json_build_array(VARIADIC '{a,b,c}'::text[]); -- ok
|
|
json_build_array
|
|
------------------
|
|
["a", "b", "c"]
|
|
(1 row)
|
|
|
|
SELECT json_build_array(VARIADIC ARRAY['a', NULL]::text[]); -- ok
|
|
json_build_array
|
|
------------------
|
|
["a", null]
|
|
(1 row)
|
|
|
|
SELECT json_build_array(VARIADIC '{1,2,3,4}'::text[]); -- ok
|
|
json_build_array
|
|
----------------------
|
|
["1", "2", "3", "4"]
|
|
(1 row)
|
|
|
|
SELECT json_build_array(VARIADIC '{1,2,3,4}'::int[]); -- ok
|
|
json_build_array
|
|
------------------
|
|
[1, 2, 3, 4]
|
|
(1 row)
|
|
|
|
SELECT json_build_array(VARIADIC '{{1,4},{2,5},{3,6}}'::int[][]); -- ok
|
|
json_build_array
|
|
--------------------
|
|
[1, 4, 2, 5, 3, 6]
|
|
(1 row)
|
|
|
|
SELECT json_build_object('a',1,'b',1.2,'c',true,'d',null,'e',json '{"x": 3, "y": [1,2,3]}');
|
|
json_build_object
|
|
----------------------------------------------------------------------------
|
|
{"a" : 1, "b" : 1.2, "c" : true, "d" : null, "e" : {"x": 3, "y": [1,2,3]}}
|
|
(1 row)
|
|
|
|
SELECT json_build_object(
|
|
'a', json_build_object('b',false,'c',99),
|
|
'd', json_build_object('e',array[9,8,7]::int[],
|
|
'f', (select row_to_json(r) from ( select relkind, oid::regclass as name from pg_class where relname = 'pg_class') r)));
|
|
json_build_object
|
|
-------------------------------------------------------------------------------------------------
|
|
{"a" : {"b" : false, "c" : 99}, "d" : {"e" : [9,8,7], "f" : {"relkind":"r","name":"pg_class"}}}
|
|
(1 row)
|
|
|
|
SELECT json_build_object('{a,b,c}'::text[]); -- error
|
|
ERROR: argument list must have even number of elements
|
|
HINT: The arguments of json_build_object() must consist of alternating keys and values.
|
|
SELECT json_build_object('{a,b,c}'::text[], '{d,e,f}'::text[]); -- error, key cannot be array
|
|
ERROR: key value must be scalar, not array, composite, or json
|
|
SELECT json_build_object('a', 'b', 'c'); -- error
|
|
ERROR: argument list must have even number of elements
|
|
HINT: The arguments of json_build_object() must consist of alternating keys and values.
|
|
SELECT json_build_object(NULL, 'a'); -- error, key cannot be NULL
|
|
ERROR: null value not allowed for object key
|
|
SELECT json_build_object('a', NULL); -- ok
|
|
json_build_object
|
|
-------------------
|
|
{"a" : null}
|
|
(1 row)
|
|
|
|
SELECT json_build_object(VARIADIC NULL::text[]); -- ok
|
|
json_build_object
|
|
-------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT json_build_object(VARIADIC '{}'::text[]); -- ok
|
|
json_build_object
|
|
-------------------
|
|
{}
|
|
(1 row)
|
|
|
|
SELECT json_build_object(VARIADIC '{a,b,c}'::text[]); -- error
|
|
ERROR: argument list must have even number of elements
|
|
HINT: The arguments of json_build_object() must consist of alternating keys and values.
|
|
SELECT json_build_object(VARIADIC ARRAY['a', NULL]::text[]); -- ok
|
|
json_build_object
|
|
-------------------
|
|
{"a" : null}
|
|
(1 row)
|
|
|
|
SELECT json_build_object(VARIADIC ARRAY[NULL, 'a']::text[]); -- error, key cannot be NULL
|
|
ERROR: null value not allowed for object key
|
|
SELECT json_build_object(VARIADIC '{1,2,3,4}'::text[]); -- ok
|
|
json_build_object
|
|
------------------------
|
|
{"1" : "2", "3" : "4"}
|
|
(1 row)
|
|
|
|
SELECT json_build_object(VARIADIC '{1,2,3,4}'::int[]); -- ok
|
|
json_build_object
|
|
--------------------
|
|
{"1" : 2, "3" : 4}
|
|
(1 row)
|
|
|
|
SELECT json_build_object(VARIADIC '{{1,4},{2,5},{3,6}}'::int[][]); -- ok
|
|
json_build_object
|
|
-----------------------------
|
|
{"1" : 4, "2" : 5, "3" : 6}
|
|
(1 row)
|
|
|
|
-- empty objects/arrays
|
|
SELECT json_build_array();
|
|
json_build_array
|
|
------------------
|
|
[]
|
|
(1 row)
|
|
|
|
SELECT json_build_object();
|
|
json_build_object
|
|
-------------------
|
|
{}
|
|
(1 row)
|
|
|
|
-- make sure keys are quoted
|
|
SELECT json_build_object(1,2);
|
|
json_build_object
|
|
-------------------
|
|
{"1" : 2}
|
|
(1 row)
|
|
|
|
-- keys must be scalar and not null
|
|
SELECT json_build_object(null,2);
|
|
ERROR: null value not allowed for object key
|
|
SELECT json_build_object(r,2) FROM (SELECT 1 AS a, 2 AS b) r;
|
|
ERROR: key value must be scalar, not array, composite, or json
|
|
SELECT json_build_object(json '{"a":1,"b":2}', 3);
|
|
ERROR: key value must be scalar, not array, composite, or json
|
|
SELECT json_build_object('{1,2,3}'::int[], 3);
|
|
ERROR: key value must be scalar, not array, composite, or json
|
|
CREATE TEMP TABLE foo (serial_num int, name text, type text);
|
|
INSERT INTO foo VALUES (847001,'t15','GE1043');
|
|
INSERT INTO foo VALUES (847002,'t16','GE1043');
|
|
INSERT INTO foo VALUES (847003,'sub-alpha','GESS90');
|
|
SELECT json_build_object('turbines',json_object_agg(serial_num,json_build_object('name',name,'type',type)))
|
|
FROM foo;
|
|
json_build_object
|
|
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
{"turbines" : { "847001" : {"name" : "t15", "type" : "GE1043"}, "847002" : {"name" : "t16", "type" : "GE1043"}, "847003" : {"name" : "sub-alpha", "type" : "GESS90"} }}
|
|
(1 row)
|
|
|
|
SELECT json_object_agg(name, type) FROM foo;
|
|
json_object_agg
|
|
----------------------------------------------------------------
|
|
{ "t15" : "GE1043", "t16" : "GE1043", "sub-alpha" : "GESS90" }
|
|
(1 row)
|
|
|
|
INSERT INTO foo VALUES (999999, NULL, 'bar');
|
|
SELECT json_object_agg(name, type) FROM foo;
|
|
ERROR: null value not allowed for object key
|
|
-- json_object
|
|
-- empty object, one dimension
|
|
SELECT json_object('{}');
|
|
json_object
|
|
-------------
|
|
{}
|
|
(1 row)
|
|
|
|
-- empty object, two dimensions
|
|
SELECT json_object('{}', '{}');
|
|
json_object
|
|
-------------
|
|
{}
|
|
(1 row)
|
|
|
|
-- one dimension
|
|
SELECT json_object('{a,1,b,2,3,NULL,"d e f","a b c"}');
|
|
json_object
|
|
-------------------------------------------------------
|
|
{"a" : "1", "b" : "2", "3" : null, "d e f" : "a b c"}
|
|
(1 row)
|
|
|
|
-- same but with two dimensions
|
|
SELECT json_object('{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}');
|
|
json_object
|
|
-------------------------------------------------------
|
|
{"a" : "1", "b" : "2", "3" : null, "d e f" : "a b c"}
|
|
(1 row)
|
|
|
|
-- odd number error
|
|
SELECT json_object('{a,b,c}');
|
|
ERROR: array must have even number of elements
|
|
-- one column error
|
|
SELECT json_object('{{a},{b}}');
|
|
ERROR: array must have two columns
|
|
-- too many columns error
|
|
SELECT json_object('{{a,b,c},{b,c,d}}');
|
|
ERROR: array must have two columns
|
|
-- too many dimensions error
|
|
SELECT json_object('{{{a,b},{c,d}},{{b,c},{d,e}}}');
|
|
ERROR: wrong number of array subscripts
|
|
--two argument form of json_object
|
|
select json_object('{a,b,c,"d e f"}','{1,2,3,"a b c"}');
|
|
json_object
|
|
------------------------------------------------------
|
|
{"a" : "1", "b" : "2", "c" : "3", "d e f" : "a b c"}
|
|
(1 row)
|
|
|
|
-- too many dimensions
|
|
SELECT json_object('{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}', '{{a,1},{b,2},{3,NULL},{"d e f","a b c"}}');
|
|
ERROR: wrong number of array subscripts
|
|
-- mismatched dimensions
|
|
select json_object('{a,b,c,"d e f",g}','{1,2,3,"a b c"}');
|
|
ERROR: mismatched array dimensions
|
|
select json_object('{a,b,c,"d e f"}','{1,2,3,"a b c",g}');
|
|
ERROR: mismatched array dimensions
|
|
-- null key error
|
|
select json_object('{a,b,NULL,"d e f"}','{1,2,3,"a b c"}');
|
|
ERROR: null value not allowed for object key
|
|
-- empty key is allowed
|
|
select json_object('{a,b,"","d e f"}','{1,2,3,"a b c"}');
|
|
json_object
|
|
-----------------------------------------------------
|
|
{"a" : "1", "b" : "2", "" : "3", "d e f" : "a b c"}
|
|
(1 row)
|
|
|
|
-- json_to_record and json_to_recordset
|
|
select * from json_to_record('{"a":1,"b":"foo","c":"bar"}')
|
|
as x(a int, b text, d text);
|
|
a | b | d
|
|
---+-----+---
|
|
1 | foo |
|
|
(1 row)
|
|
|
|
select * from json_to_recordset('[{"a":1,"b":"foo","d":false},{"a":2,"b":"bar","c":true}]')
|
|
as x(a int, b text, c boolean);
|
|
a | b | c
|
|
---+-----+---
|
|
1 | foo |
|
|
2 | bar | t
|
|
(2 rows)
|
|
|
|
select * from json_to_recordset('[{"a":1,"b":{"d":"foo"},"c":true},{"a":2,"c":false,"b":{"d":"bar"}}]')
|
|
as x(a int, b json, c boolean);
|
|
a | b | c
|
|
---+-------------+---
|
|
1 | {"d":"foo"} | t
|
|
2 | {"d":"bar"} | f
|
|
(2 rows)
|
|
|
|
select *, c is null as c_is_null
|
|
from json_to_record('{"a":1, "b":{"c":16, "d":2}, "x":8, "ca": ["1 2", 3], "ia": [[1,2],[3,4]], "r": {"a": "aaa", "b": 123}}'::json)
|
|
as t(a int, b json, c text, x int, ca char(5)[], ia int[][], r jpop);
|
|
a | b | c | x | ca | ia | r | c_is_null
|
|
---+-----------------+---+---+-------------------+---------------+------------+-----------
|
|
1 | {"c":16, "d":2} | | 8 | {"1 2 ","3 "} | {{1,2},{3,4}} | (aaa,123,) | t
|
|
(1 row)
|
|
|
|
select *, c is null as c_is_null
|
|
from json_to_recordset('[{"a":1, "b":{"c":16, "d":2}, "x":8}]'::json)
|
|
as t(a int, b json, c text, x int);
|
|
a | b | c | x | c_is_null
|
|
---+-----------------+---+---+-----------
|
|
1 | {"c":16, "d":2} | | 8 | t
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"ia": null}') as x(ia _int4);
|
|
ia
|
|
----
|
|
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"ia": 123}') as x(ia _int4);
|
|
ERROR: expected JSON array
|
|
HINT: See the value of key "ia".
|
|
select * from json_to_record('{"ia": [1, "2", null, 4]}') as x(ia _int4);
|
|
ia
|
|
--------------
|
|
{1,2,NULL,4}
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"ia": [[1, 2], [3, 4]]}') as x(ia _int4);
|
|
ia
|
|
---------------
|
|
{{1,2},{3,4}}
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"ia": [[1], 2]}') as x(ia _int4);
|
|
ERROR: expected JSON array
|
|
HINT: See the array element [1] of key "ia".
|
|
select * from json_to_record('{"ia": [[1], [2, 3]]}') as x(ia _int4);
|
|
ERROR: malformed JSON array
|
|
DETAIL: Multidimensional arrays must have sub-arrays with matching dimensions.
|
|
select * from json_to_record('{"ia2": [1, 2, 3]}') as x(ia2 int[][]);
|
|
ia2
|
|
---------
|
|
{1,2,3}
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"ia2": [[1, 2], [3, 4]]}') as x(ia2 int4[][]);
|
|
ia2
|
|
---------------
|
|
{{1,2},{3,4}}
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"ia2": [[[1], [2], [3]]]}') as x(ia2 int4[][]);
|
|
ia2
|
|
-----------------
|
|
{{{1},{2},{3}}}
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"out": {"key": 1}}') as x(out json);
|
|
out
|
|
------------
|
|
{"key": 1}
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"out": [{"key": 1}]}') as x(out json);
|
|
out
|
|
--------------
|
|
[{"key": 1}]
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"out": "{\"key\": 1}"}') as x(out json);
|
|
out
|
|
----------------
|
|
"{\"key\": 1}"
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"out": {"key": 1}}') as x(out jsonb);
|
|
out
|
|
------------
|
|
{"key": 1}
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"out": [{"key": 1}]}') as x(out jsonb);
|
|
out
|
|
--------------
|
|
[{"key": 1}]
|
|
(1 row)
|
|
|
|
select * from json_to_record('{"out": "{\"key\": 1}"}') as x(out jsonb);
|
|
out
|
|
----------------
|
|
"{\"key\": 1}"
|
|
(1 row)
|
|
|
|
-- json_strip_nulls
|
|
select json_strip_nulls(null);
|
|
json_strip_nulls
|
|
------------------
|
|
|
|
(1 row)
|
|
|
|
select json_strip_nulls('1');
|
|
json_strip_nulls
|
|
------------------
|
|
1
|
|
(1 row)
|
|
|
|
select json_strip_nulls('"a string"');
|
|
json_strip_nulls
|
|
------------------
|
|
"a string"
|
|
(1 row)
|
|
|
|
select json_strip_nulls('null');
|
|
json_strip_nulls
|
|
------------------
|
|
null
|
|
(1 row)
|
|
|
|
select json_strip_nulls('[1,2,null,3,4]');
|
|
json_strip_nulls
|
|
------------------
|
|
[1,2,null,3,4]
|
|
(1 row)
|
|
|
|
select json_strip_nulls('{"a":1,"b":null,"c":[2,null,3],"d":{"e":4,"f":null}}');
|
|
json_strip_nulls
|
|
------------------------------------
|
|
{"a":1,"c":[2,null,3],"d":{"e":4}}
|
|
(1 row)
|
|
|
|
select json_strip_nulls('[1,{"a":1,"b":null,"c":2},3]');
|
|
json_strip_nulls
|
|
---------------------
|
|
[1,{"a":1,"c":2},3]
|
|
(1 row)
|
|
|
|
-- an empty object is not null and should not be stripped
|
|
select json_strip_nulls('{"a": {"b": null, "c": null}, "d": {} }');
|
|
json_strip_nulls
|
|
------------------
|
|
{"a":{},"d":{}}
|
|
(1 row)
|
|
|
|
-- json to tsvector
|
|
select to_tsvector('{"a": "aaa bbb ddd ccc", "b": ["eee fff ggg"], "c": {"d": "hhh iii"}}'::json);
|
|
to_tsvector
|
|
---------------------------------------------------------------------------
|
|
'aaa':1 'bbb':2 'ccc':4 'ddd':3 'eee':6 'fff':7 'ggg':8 'hhh':10 'iii':11
|
|
(1 row)
|
|
|
|
-- json to tsvector with config
|
|
select to_tsvector('simple', '{"a": "aaa bbb ddd ccc", "b": ["eee fff ggg"], "c": {"d": "hhh iii"}}'::json);
|
|
to_tsvector
|
|
---------------------------------------------------------------------------
|
|
'aaa':1 'bbb':2 'ccc':4 'ddd':3 'eee':6 'fff':7 'ggg':8 'hhh':10 'iii':11
|
|
(1 row)
|
|
|
|
-- json to tsvector with stop words
|
|
select to_tsvector('english', '{"a": "aaa in bbb ddd ccc", "b": ["the eee fff ggg"], "c": {"d": "hhh. iii"}}'::json);
|
|
to_tsvector
|
|
----------------------------------------------------------------------------
|
|
'aaa':1 'bbb':3 'ccc':5 'ddd':4 'eee':8 'fff':9 'ggg':10 'hhh':12 'iii':13
|
|
(1 row)
|
|
|
|
-- json to tsvector with numeric values
|
|
select to_tsvector('english', '{"a": "aaa in bbb ddd ccc", "b": 123, "c": 456}'::json);
|
|
to_tsvector
|
|
---------------------------------
|
|
'aaa':1 'bbb':3 'ccc':5 'ddd':4
|
|
(1 row)
|
|
|
|
-- json_to_tsvector
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"all"');
|
|
json_to_tsvector
|
|
----------------------------------------------------------------------------------------
|
|
'123':8 '456':12 'aaa':2 'b':6 'bbb':4 'c':10 'd':14 'f':18 'fals':20 'g':22 'true':16
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"key"');
|
|
json_to_tsvector
|
|
--------------------------------
|
|
'b':2 'c':4 'd':6 'f':8 'g':10
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"string"');
|
|
json_to_tsvector
|
|
------------------
|
|
'aaa':1 'bbb':3
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"numeric"');
|
|
json_to_tsvector
|
|
------------------
|
|
'123':1 '456':3
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"boolean"');
|
|
json_to_tsvector
|
|
-------------------
|
|
'fals':3 'true':1
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '["string", "numeric"]');
|
|
json_to_tsvector
|
|
---------------------------------
|
|
'123':5 '456':7 'aaa':1 'bbb':3
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"all"');
|
|
json_to_tsvector
|
|
----------------------------------------------------------------------------------------
|
|
'123':8 '456':12 'aaa':2 'b':6 'bbb':4 'c':10 'd':14 'f':18 'fals':20 'g':22 'true':16
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"key"');
|
|
json_to_tsvector
|
|
--------------------------------
|
|
'b':2 'c':4 'd':6 'f':8 'g':10
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"string"');
|
|
json_to_tsvector
|
|
------------------
|
|
'aaa':1 'bbb':3
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"numeric"');
|
|
json_to_tsvector
|
|
------------------
|
|
'123':1 '456':3
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '"boolean"');
|
|
json_to_tsvector
|
|
-------------------
|
|
'fals':3 'true':1
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '["string", "numeric"]');
|
|
json_to_tsvector
|
|
---------------------------------
|
|
'123':5 '456':7 'aaa':1 'bbb':3
|
|
(1 row)
|
|
|
|
-- to_tsvector corner cases
|
|
select to_tsvector('""'::json);
|
|
to_tsvector
|
|
-------------
|
|
|
|
(1 row)
|
|
|
|
select to_tsvector('{}'::json);
|
|
to_tsvector
|
|
-------------
|
|
|
|
(1 row)
|
|
|
|
select to_tsvector('[]'::json);
|
|
to_tsvector
|
|
-------------
|
|
|
|
(1 row)
|
|
|
|
select to_tsvector('null'::json);
|
|
to_tsvector
|
|
-------------
|
|
|
|
(1 row)
|
|
|
|
-- json_to_tsvector corner cases
|
|
select json_to_tsvector('""'::json, '"all"');
|
|
json_to_tsvector
|
|
------------------
|
|
|
|
(1 row)
|
|
|
|
select json_to_tsvector('{}'::json, '"all"');
|
|
json_to_tsvector
|
|
------------------
|
|
|
|
(1 row)
|
|
|
|
select json_to_tsvector('[]'::json, '"all"');
|
|
json_to_tsvector
|
|
------------------
|
|
|
|
(1 row)
|
|
|
|
select json_to_tsvector('null'::json, '"all"');
|
|
json_to_tsvector
|
|
------------------
|
|
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '""');
|
|
ERROR: wrong flag in flag array: ""
|
|
HINT: Possible values are: "string", "numeric", "boolean", "key", and "all".
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '{}');
|
|
ERROR: wrong flag type, only arrays and scalars are allowed
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '[]');
|
|
json_to_tsvector
|
|
------------------
|
|
|
|
(1 row)
|
|
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, 'null');
|
|
ERROR: flag array element is not a string
|
|
HINT: Possible values are: "string", "numeric", "boolean", "key", and "all".
|
|
select json_to_tsvector('english', '{"a": "aaa in bbb", "b": 123, "c": 456, "d": true, "f": false, "g": null}'::json, '["all", null]');
|
|
ERROR: flag array element is not a string
|
|
HINT: Possible values are: "string", "numeric", "boolean", "key", and "all".
|
|
-- ts_headline for json
|
|
select ts_headline('{"a": "aaa bbb", "b": {"c": "ccc ddd fff", "c1": "ccc1 ddd1"}, "d": ["ggg hhh", "iii jjj"]}'::json, tsquery('bbb & ddd & hhh'));
|
|
ts_headline
|
|
---------------------------------------------------------------------------------------------------------
|
|
{"a":"aaa <b>bbb</b>","b":{"c":"ccc <b>ddd</b> fff","c1":"ccc1 ddd1"},"d":["ggg <b>hhh</b>","iii jjj"]}
|
|
(1 row)
|
|
|
|
select ts_headline('english', '{"a": "aaa bbb", "b": {"c": "ccc ddd fff"}, "d": ["ggg hhh", "iii jjj"]}'::json, tsquery('bbb & ddd & hhh'));
|
|
ts_headline
|
|
----------------------------------------------------------------------------------------
|
|
{"a":"aaa <b>bbb</b>","b":{"c":"ccc <b>ddd</b> fff"},"d":["ggg <b>hhh</b>","iii jjj"]}
|
|
(1 row)
|
|
|
|
select ts_headline('{"a": "aaa bbb", "b": {"c": "ccc ddd fff", "c1": "ccc1 ddd1"}, "d": ["ggg hhh", "iii jjj"]}'::json, tsquery('bbb & ddd & hhh'), 'StartSel = <, StopSel = >');
|
|
ts_headline
|
|
------------------------------------------------------------------------------------------
|
|
{"a":"aaa <bbb>","b":{"c":"ccc <ddd> fff","c1":"ccc1 ddd1"},"d":["ggg <hhh>","iii jjj"]}
|
|
(1 row)
|
|
|
|
select ts_headline('english', '{"a": "aaa bbb", "b": {"c": "ccc ddd fff", "c1": "ccc1 ddd1"}, "d": ["ggg hhh", "iii jjj"]}'::json, tsquery('bbb & ddd & hhh'), 'StartSel = <, StopSel = >');
|
|
ts_headline
|
|
------------------------------------------------------------------------------------------
|
|
{"a":"aaa <bbb>","b":{"c":"ccc <ddd> fff","c1":"ccc1 ddd1"},"d":["ggg <hhh>","iii jjj"]}
|
|
(1 row)
|
|
|
|
-- corner cases for ts_headline with json
|
|
select ts_headline('null'::json, tsquery('aaa & bbb'));
|
|
ts_headline
|
|
-------------
|
|
null
|
|
(1 row)
|
|
|
|
select ts_headline('{}'::json, tsquery('aaa & bbb'));
|
|
ts_headline
|
|
-------------
|
|
{}
|
|
(1 row)
|
|
|
|
select ts_headline('[]'::json, tsquery('aaa & bbb'));
|
|
ts_headline
|
|
-------------
|
|
[]
|
|
(1 row)
|
|
|