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9fa1aaa652
c2a4078eb adjusted EXPLAIN ANALYZE to include BUFFERS by default, but
a few tests in select_into.sql neglected to add BUFFERS OFF. The
failing tests seem unlikely to ever access buffers during execution, but
they certainly could during planning.
Per buildfarm member kestrel, tayra and calliphoridae.
Discussion: https://postgr.es/m/CANNMO++W7MM8T0KyXN3ZheXXt-uLVM3aEtZd+WNfZ=obxffUiA@mail.gmail.com
138 lines
4.8 KiB
PL/PgSQL
138 lines
4.8 KiB
PL/PgSQL
--
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-- SELECT_INTO
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--
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SELECT *
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INTO TABLE sitmp1
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FROM onek
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WHERE onek.unique1 < 2;
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DROP TABLE sitmp1;
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SELECT *
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INTO TABLE sitmp1
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FROM onek2
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WHERE onek2.unique1 < 2;
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DROP TABLE sitmp1;
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--
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-- SELECT INTO and INSERT permission, if owner is not allowed to insert.
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--
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CREATE SCHEMA selinto_schema;
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CREATE USER regress_selinto_user;
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ALTER DEFAULT PRIVILEGES FOR ROLE regress_selinto_user
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REVOKE INSERT ON TABLES FROM regress_selinto_user;
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GRANT ALL ON SCHEMA selinto_schema TO public;
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SET SESSION AUTHORIZATION regress_selinto_user;
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-- WITH DATA, passes.
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CREATE TABLE selinto_schema.tbl_withdata1 (a)
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AS SELECT generate_series(1,3) WITH DATA;
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INSERT INTO selinto_schema.tbl_withdata1 VALUES (4);
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF, BUFFERS OFF)
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CREATE TABLE selinto_schema.tbl_withdata2 (a) AS
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SELECT generate_series(1,3) WITH DATA;
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-- WITH NO DATA, passes.
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CREATE TABLE selinto_schema.tbl_nodata1 (a) AS
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SELECT generate_series(1,3) WITH NO DATA;
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF, BUFFERS OFF)
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CREATE TABLE selinto_schema.tbl_nodata2 (a) AS
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SELECT generate_series(1,3) WITH NO DATA;
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-- EXECUTE and WITH DATA, passes.
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PREPARE data_sel AS SELECT generate_series(1,3);
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CREATE TABLE selinto_schema.tbl_withdata3 (a) AS
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EXECUTE data_sel WITH DATA;
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF, BUFFERS OFF)
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CREATE TABLE selinto_schema.tbl_withdata4 (a) AS
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EXECUTE data_sel WITH DATA;
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-- EXECUTE and WITH NO DATA, passes.
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CREATE TABLE selinto_schema.tbl_nodata3 (a) AS
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EXECUTE data_sel WITH NO DATA;
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF, BUFFERS OFF)
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CREATE TABLE selinto_schema.tbl_nodata4 (a) AS
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EXECUTE data_sel WITH NO DATA;
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RESET SESSION AUTHORIZATION;
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ALTER DEFAULT PRIVILEGES FOR ROLE regress_selinto_user
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GRANT INSERT ON TABLES TO regress_selinto_user;
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SET SESSION AUTHORIZATION regress_selinto_user;
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RESET SESSION AUTHORIZATION;
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DEALLOCATE data_sel;
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DROP SCHEMA selinto_schema CASCADE;
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DROP USER regress_selinto_user;
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-- Tests for WITH NO DATA and column name consistency
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CREATE TABLE ctas_base (i int, j int);
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INSERT INTO ctas_base VALUES (1, 2);
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CREATE TABLE ctas_nodata (ii, jj, kk) AS SELECT i, j FROM ctas_base; -- Error
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CREATE TABLE ctas_nodata (ii, jj, kk) AS SELECT i, j FROM ctas_base WITH NO DATA; -- Error
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CREATE TABLE ctas_nodata (ii, jj) AS SELECT i, j FROM ctas_base; -- OK
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CREATE TABLE ctas_nodata_2 (ii, jj) AS SELECT i, j FROM ctas_base WITH NO DATA; -- OK
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CREATE TABLE ctas_nodata_3 (ii) AS SELECT i, j FROM ctas_base; -- OK
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CREATE TABLE ctas_nodata_4 (ii) AS SELECT i, j FROM ctas_base WITH NO DATA; -- OK
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SELECT * FROM ctas_nodata;
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SELECT * FROM ctas_nodata_2;
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SELECT * FROM ctas_nodata_3;
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SELECT * FROM ctas_nodata_4;
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DROP TABLE ctas_base;
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DROP TABLE ctas_nodata;
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DROP TABLE ctas_nodata_2;
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DROP TABLE ctas_nodata_3;
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DROP TABLE ctas_nodata_4;
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--
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-- CREATE TABLE AS/SELECT INTO as last command in a SQL function
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-- have been known to cause problems
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--
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CREATE FUNCTION make_table() RETURNS VOID
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AS $$
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CREATE TABLE created_table AS SELECT * FROM int8_tbl;
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$$ LANGUAGE SQL;
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SELECT make_table();
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SELECT * FROM created_table;
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-- Try EXPLAIN ANALYZE SELECT INTO and EXPLAIN ANALYZE CREATE TABLE AS
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-- WITH NO DATA, but hide the outputs since they won't be stable.
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DO $$
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BEGIN
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EXECUTE 'EXPLAIN ANALYZE SELECT * INTO TABLE easi FROM int8_tbl';
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EXECUTE 'EXPLAIN ANALYZE CREATE TABLE easi2 AS SELECT * FROM int8_tbl WITH NO DATA';
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END$$;
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DROP TABLE created_table;
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DROP TABLE easi, easi2;
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--
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-- Disallowed uses of SELECT ... INTO. All should fail
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--
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DECLARE foo CURSOR FOR SELECT 1 INTO int4_tbl;
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COPY (SELECT 1 INTO frak UNION SELECT 2) TO 'blob';
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SELECT * FROM (SELECT 1 INTO f) bar;
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CREATE VIEW foo AS SELECT 1 INTO int4_tbl;
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INSERT INTO int4_tbl SELECT 1 INTO f;
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-- Test CREATE TABLE AS ... IF NOT EXISTS
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CREATE TABLE ctas_ine_tbl AS SELECT 1;
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CREATE TABLE ctas_ine_tbl AS SELECT 1 / 0; -- error
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CREATE TABLE IF NOT EXISTS ctas_ine_tbl AS SELECT 1 / 0; -- ok
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CREATE TABLE ctas_ine_tbl AS SELECT 1 / 0 WITH NO DATA; -- error
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CREATE TABLE IF NOT EXISTS ctas_ine_tbl AS SELECT 1 / 0 WITH NO DATA; -- ok
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
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CREATE TABLE ctas_ine_tbl AS SELECT 1 / 0; -- error
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
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CREATE TABLE IF NOT EXISTS ctas_ine_tbl AS SELECT 1 / 0; -- ok
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
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CREATE TABLE ctas_ine_tbl AS SELECT 1 / 0 WITH NO DATA; -- error
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
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CREATE TABLE IF NOT EXISTS ctas_ine_tbl AS SELECT 1 / 0 WITH NO DATA; -- ok
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PREPARE ctas_ine_query AS SELECT 1 / 0;
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
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CREATE TABLE ctas_ine_tbl AS EXECUTE ctas_ine_query; -- error
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EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
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CREATE TABLE IF NOT EXISTS ctas_ine_tbl AS EXECUTE ctas_ine_query; -- ok
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DROP TABLE ctas_ine_tbl;
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