122 lines
3.7 KiB
Plaintext
122 lines
3.7 KiB
Plaintext
-- basic tests for the TID data type
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SELECT
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'(0,0)'::tid as tid00,
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'(0,1)'::tid as tid01,
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'(-1,0)'::tid as tidm10,
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'(4294967295,65535)'::tid as tidmax;
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tid00 | tid01 | tidm10 | tidmax
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-------+-------+----------------+--------------------
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(0,0) | (0,1) | (4294967295,0) | (4294967295,65535)
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(1 row)
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SELECT '(4294967296,1)'::tid; -- error
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ERROR: invalid input syntax for type tid: "(4294967296,1)"
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LINE 1: SELECT '(4294967296,1)'::tid;
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^
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SELECT '(1,65536)'::tid; -- error
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ERROR: invalid input syntax for type tid: "(1,65536)"
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LINE 1: SELECT '(1,65536)'::tid;
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^
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-- Also try it with non-error-throwing API
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SELECT pg_input_is_valid('(0)', 'tid');
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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('(0)', 'tid');
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message | detail | hint | sql_error_code
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------------------------------------------+--------+------+----------------
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invalid input syntax for type tid: "(0)" | | | 22P02
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(1 row)
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SELECT pg_input_is_valid('(0,-1)', 'tid');
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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('(0,-1)', 'tid');
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message | detail | hint | sql_error_code
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---------------------------------------------+--------+------+----------------
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invalid input syntax for type tid: "(0,-1)" | | | 22P02
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(1 row)
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-- tests for functions related to TID handling
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CREATE TABLE tid_tab (a int);
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-- min() and max() for TIDs
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INSERT INTO tid_tab VALUES (1), (2);
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SELECT min(ctid) FROM tid_tab;
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min
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-------
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(0,1)
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(1 row)
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SELECT max(ctid) FROM tid_tab;
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max
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-------
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(0,2)
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(1 row)
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TRUNCATE tid_tab;
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-- Tests for currtid2() with various relation kinds
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-- Materialized view
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CREATE MATERIALIZED VIEW tid_matview AS SELECT a FROM tid_tab;
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SELECT currtid2('tid_matview'::text, '(0,1)'::tid); -- fails
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ERROR: tid (0, 1) is not valid for relation "tid_matview"
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INSERT INTO tid_tab VALUES (1);
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REFRESH MATERIALIZED VIEW tid_matview;
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SELECT currtid2('tid_matview'::text, '(0,1)'::tid); -- ok
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currtid2
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----------
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(0,1)
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(1 row)
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DROP MATERIALIZED VIEW tid_matview;
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TRUNCATE tid_tab;
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-- Sequence
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CREATE SEQUENCE tid_seq;
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SELECT currtid2('tid_seq'::text, '(0,1)'::tid); -- ok
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currtid2
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----------
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(0,1)
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(1 row)
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DROP SEQUENCE tid_seq;
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-- Index, fails with incorrect relation type
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CREATE INDEX tid_ind ON tid_tab(a);
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SELECT currtid2('tid_ind'::text, '(0,1)'::tid); -- fails
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ERROR: cannot open relation "tid_ind"
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DETAIL: This operation is not supported for indexes.
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DROP INDEX tid_ind;
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-- Partitioned table, no storage
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CREATE TABLE tid_part (a int) PARTITION BY RANGE (a);
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SELECT currtid2('tid_part'::text, '(0,1)'::tid); -- fails
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ERROR: cannot look at latest visible tid for relation "public.tid_part"
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DROP TABLE tid_part;
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-- Views
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-- ctid not defined in the view
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CREATE VIEW tid_view_no_ctid AS SELECT a FROM tid_tab;
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SELECT currtid2('tid_view_no_ctid'::text, '(0,1)'::tid); -- fails
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ERROR: currtid cannot handle views with no CTID
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DROP VIEW tid_view_no_ctid;
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-- ctid fetched directly from the source table.
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CREATE VIEW tid_view_with_ctid AS SELECT ctid, a FROM tid_tab;
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SELECT currtid2('tid_view_with_ctid'::text, '(0,1)'::tid); -- fails
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ERROR: tid (0, 1) is not valid for relation "tid_tab"
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INSERT INTO tid_tab VALUES (1);
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SELECT currtid2('tid_view_with_ctid'::text, '(0,1)'::tid); -- ok
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currtid2
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----------
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(0,1)
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(1 row)
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DROP VIEW tid_view_with_ctid;
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TRUNCATE tid_tab;
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-- ctid attribute with incorrect data type
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CREATE VIEW tid_view_fake_ctid AS SELECT 1 AS ctid, 2 AS a;
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SELECT currtid2('tid_view_fake_ctid'::text, '(0,1)'::tid); -- fails
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ERROR: ctid isn't of type TID
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DROP VIEW tid_view_fake_ctid;
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DROP TABLE tid_tab CASCADE;
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