167 lines
19 KiB
Plaintext
167 lines
19 KiB
Plaintext
--
|
|
-- Tests for external toast datums
|
|
--
|
|
-- directory paths and dlsuffix are passed to us in environment variables
|
|
\getenv libdir PG_LIBDIR
|
|
\getenv dlsuffix PG_DLSUFFIX
|
|
\set regresslib :libdir '/regress' :dlsuffix
|
|
CREATE FUNCTION make_tuple_indirect (record)
|
|
RETURNS record
|
|
AS :'regresslib'
|
|
LANGUAGE C STRICT;
|
|
-- Other compression algorithms may cause the compressed data to be stored
|
|
-- inline. pglz guarantees that the data is externalized, so stick to it.
|
|
SET default_toast_compression = 'pglz';
|
|
CREATE TABLE indtoasttest(descr text, cnt int DEFAULT 0, f1 text, f2 text);
|
|
INSERT INTO indtoasttest(descr, f1, f2) VALUES('two-compressed', repeat('1234567890',1000), repeat('1234567890',1000));
|
|
INSERT INTO indtoasttest(descr, f1, f2) VALUES('two-toasted', repeat('1234567890',30000), repeat('1234567890',50000));
|
|
INSERT INTO indtoasttest(descr, f1, f2) VALUES('one-compressed,one-null', NULL, repeat('1234567890',1000));
|
|
INSERT INTO indtoasttest(descr, f1, f2) VALUES('one-toasted,one-null', NULL, repeat('1234567890',50000));
|
|
-- check whether indirect tuples works on the most basic level
|
|
SELECT descr, substring(make_tuple_indirect(indtoasttest)::text, 1, 200) FROM indtoasttest;
|
|
descr | substring
|
|
-------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
two-compressed | (two-compressed,0,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012
|
|
two-toasted | (two-toasted,0,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345
|
|
one-compressed,one-null | ("one-compressed,one-null",0,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
one-toasted,one-null | ("one-toasted,one-null",0,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
(4 rows)
|
|
|
|
-- modification without changing varlenas
|
|
UPDATE indtoasttest SET cnt = cnt +1 RETURNING substring(indtoasttest::text, 1, 200);
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,1,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012
|
|
(two-toasted,1,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345
|
|
("one-compressed,one-null",1,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",1,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
(4 rows)
|
|
|
|
-- modification without modifying assigned value
|
|
UPDATE indtoasttest SET cnt = cnt +1, f1 = f1 RETURNING substring(indtoasttest::text, 1, 200);
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,2,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012
|
|
(two-toasted,2,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345
|
|
("one-compressed,one-null",2,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",2,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
(4 rows)
|
|
|
|
-- modification modifying, but effectively not changing
|
|
UPDATE indtoasttest SET cnt = cnt +1, f1 = f1||'' RETURNING substring(indtoasttest::text, 1, 200);
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,3,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012
|
|
(two-toasted,3,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345
|
|
("one-compressed,one-null",3,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",3,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
(4 rows)
|
|
|
|
UPDATE indtoasttest SET cnt = cnt +1, f1 = '-'||f1||'-' RETURNING substring(indtoasttest::text, 1, 200);
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,4,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901
|
|
(two-toasted,4,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234
|
|
("one-compressed,one-null",4,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",4,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
(4 rows)
|
|
|
|
SELECT substring(indtoasttest::text, 1, 200) FROM indtoasttest;
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,4,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901
|
|
(two-toasted,4,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234
|
|
("one-compressed,one-null",4,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",4,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
(4 rows)
|
|
|
|
-- check we didn't screw with main/toast tuple visibility
|
|
VACUUM FREEZE indtoasttest;
|
|
SELECT substring(indtoasttest::text, 1, 200) FROM indtoasttest;
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,4,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901
|
|
(two-toasted,4,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234
|
|
("one-compressed,one-null",4,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",4,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
(4 rows)
|
|
|
|
-- now create a trigger that forces all Datums to be indirect ones
|
|
CREATE FUNCTION update_using_indirect()
|
|
RETURNS trigger
|
|
LANGUAGE plpgsql AS $$
|
|
BEGIN
|
|
NEW := make_tuple_indirect(NEW);
|
|
RETURN NEW;
|
|
END$$;
|
|
CREATE TRIGGER indtoasttest_update_indirect
|
|
BEFORE INSERT OR UPDATE
|
|
ON indtoasttest
|
|
FOR EACH ROW
|
|
EXECUTE PROCEDURE update_using_indirect();
|
|
-- modification without changing varlenas
|
|
UPDATE indtoasttest SET cnt = cnt +1 RETURNING substring(indtoasttest::text, 1, 200);
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,5,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901
|
|
(two-toasted,5,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234
|
|
("one-compressed,one-null",5,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",5,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
(4 rows)
|
|
|
|
-- modification without modifying assigned value
|
|
UPDATE indtoasttest SET cnt = cnt +1, f1 = f1 RETURNING substring(indtoasttest::text, 1, 200);
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,6,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901
|
|
(two-toasted,6,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234
|
|
("one-compressed,one-null",6,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",6,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
(4 rows)
|
|
|
|
-- modification modifying, but effectively not changing
|
|
UPDATE indtoasttest SET cnt = cnt +1, f1 = f1||'' RETURNING substring(indtoasttest::text, 1, 200);
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,7,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901
|
|
(two-toasted,7,-1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234
|
|
("one-compressed,one-null",7,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",7,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
(4 rows)
|
|
|
|
UPDATE indtoasttest SET cnt = cnt +1, f1 = '-'||f1||'-' RETURNING substring(indtoasttest::text, 1, 200);
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,8,--123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
(two-toasted,8,--123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
("one-compressed,one-null",8,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",8,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
(4 rows)
|
|
|
|
INSERT INTO indtoasttest(descr, f1, f2) VALUES('one-toasted,one-null, via indirect', repeat('1234567890',30000), NULL);
|
|
SELECT substring(indtoasttest::text, 1, 200) FROM indtoasttest;
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,8,--123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
(two-toasted,8,--123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
("one-compressed,one-null",8,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",8,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
("one-toasted,one-null, via indirect",0,1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
(5 rows)
|
|
|
|
-- check we didn't screw with main/toast tuple visibility
|
|
VACUUM FREEZE indtoasttest;
|
|
SELECT substring(indtoasttest::text, 1, 200) FROM indtoasttest;
|
|
substring
|
|
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
(two-compressed,8,--123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
(two-toasted,8,--123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
("one-compressed,one-null",8,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
("one-toasted,one-null",8,,12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
|
|
("one-toasted,one-null, via indirect",0,1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
|
|
(5 rows)
|
|
|
|
DROP TABLE indtoasttest;
|
|
DROP FUNCTION update_using_indirect();
|
|
RESET default_toast_compression;
|