src/test/regress/expected/select_into.out - master - githubmirror/postgres

src/test/regress/expected/select_into.out
222 строки8 KB
Robert Haas
EXPLAIN: Always use two fractional digits for row counts.
27 фев 2025, 19:27
27 фев 2025, 19:2795dbd82
--
-- SELECT_INTO
--
SELECT *
   INTO TABLE sitmp1
   FROM onek
   WHERE onek.unique1 < 2;
DROP TABLE sitmp1;
SELECT *
   INTO TABLE sitmp1
   FROM onek2
   WHERE onek2.unique1 < 2;
DROP TABLE sitmp1;
--
-- SELECT INTO and INSERT permission, if owner is not allowed to insert.
--
CREATE SCHEMA selinto_schema;
CREATE USER regress_selinto_user;
ALTER DEFAULT PRIVILEGES FOR ROLE regress_selinto_user
	  REVOKE INSERT ON TABLES FROM regress_selinto_user;
GRANT ALL ON SCHEMA selinto_schema TO public;
SET SESSION AUTHORIZATION regress_selinto_user;
-- WITH DATA, passes.
CREATE TABLE selinto_schema.tbl_withdata1 (a)
  AS SELECT generate_series(1,3) WITH DATA;
INSERT INTO selinto_schema.tbl_withdata1 VALUES (4);
ERROR:  permission denied for table tbl_withdata1
EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF, BUFFERS OFF)
  CREATE TABLE selinto_schema.tbl_withdata2 (a) AS
  SELECT generate_series(1,3) WITH DATA;
               QUERY PLAN                
-----------------------------------------
 ProjectSet (actual rows=3.00 loops=1)
   ->  Result (actual rows=1.00 loops=1)
(2 rows)

-- WITH NO DATA, passes.
CREATE TABLE selinto_schema.tbl_nodata1 (a) AS
  SELECT generate_series(1,3) WITH NO DATA;
EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF, BUFFERS OFF)
  CREATE TABLE selinto_schema.tbl_nodata2 (a) AS
  SELECT generate_series(1,3) WITH NO DATA;
          QUERY PLAN           
-------------------------------
 ProjectSet (never executed)
   ->  Result (never executed)
(2 rows)

-- EXECUTE and WITH DATA, passes.
PREPARE data_sel AS SELECT generate_series(1,3);
CREATE TABLE selinto_schema.tbl_withdata3 (a) AS
  EXECUTE data_sel WITH DATA;
EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF, BUFFERS OFF)
  CREATE TABLE selinto_schema.tbl_withdata4 (a) AS
  EXECUTE data_sel WITH DATA;
               QUERY PLAN                
-----------------------------------------
 ProjectSet (actual rows=3.00 loops=1)
   ->  Result (actual rows=1.00 loops=1)
(2 rows)

-- EXECUTE and WITH NO DATA, passes.
CREATE TABLE selinto_schema.tbl_nodata3 (a) AS
  EXECUTE data_sel WITH NO DATA;
EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF, BUFFERS OFF)
  CREATE TABLE selinto_schema.tbl_nodata4 (a) AS
  EXECUTE data_sel WITH NO DATA;
          QUERY PLAN           
-------------------------------
 ProjectSet (never executed)
   ->  Result (never executed)
(2 rows)

RESET SESSION AUTHORIZATION;
ALTER DEFAULT PRIVILEGES FOR ROLE regress_selinto_user
	  GRANT INSERT ON TABLES TO regress_selinto_user;
SET SESSION AUTHORIZATION regress_selinto_user;
RESET SESSION AUTHORIZATION;
DEALLOCATE data_sel;
DROP SCHEMA selinto_schema CASCADE;
NOTICE:  drop cascades to 8 other objects
DETAIL:  drop cascades to table selinto_schema.tbl_withdata1
drop cascades to table selinto_schema.tbl_withdata2
drop cascades to table selinto_schema.tbl_nodata1
drop cascades to table selinto_schema.tbl_nodata2
drop cascades to table selinto_schema.tbl_withdata3
drop cascades to table selinto_schema.tbl_withdata4
drop cascades to table selinto_schema.tbl_nodata3
drop cascades to table selinto_schema.tbl_nodata4
DROP USER regress_selinto_user;
-- Tests for WITH NO DATA and column name consistency
CREATE TABLE ctas_base (i int, j int);
INSERT INTO ctas_base VALUES (1, 2);
CREATE TABLE ctas_nodata (ii, jj, kk) AS SELECT i, j FROM ctas_base; -- Error
ERROR:  too many column names were specified
CREATE TABLE ctas_nodata (ii, jj, kk) AS SELECT i, j FROM ctas_base WITH NO DATA; -- Error
ERROR:  too many column names were specified
CREATE TABLE ctas_nodata (ii, jj) AS SELECT i, j FROM ctas_base; -- OK
CREATE TABLE ctas_nodata_2 (ii, jj) AS SELECT i, j FROM ctas_base WITH NO DATA; -- OK
CREATE TABLE ctas_nodata_3 (ii) AS SELECT i, j FROM ctas_base; -- OK
CREATE TABLE ctas_nodata_4 (ii) AS SELECT i, j FROM ctas_base WITH NO DATA; -- OK
SELECT * FROM ctas_nodata;
 ii | jj 
----+----
  1 |  2
(1 row)

SELECT * FROM ctas_nodata_2;
 ii | jj 
----+----
(0 rows)

SELECT * FROM ctas_nodata_3;
 ii | j 
----+---
  1 | 2
(1 row)

SELECT * FROM ctas_nodata_4;
 ii | j 
----+---
(0 rows)

DROP TABLE ctas_base;
DROP TABLE ctas_nodata;
DROP TABLE ctas_nodata_2;
DROP TABLE ctas_nodata_3;
DROP TABLE ctas_nodata_4;
--
-- CREATE TABLE AS/SELECT INTO as last command in a SQL function
-- have been known to cause problems
--
CREATE FUNCTION make_table() RETURNS VOID
AS $$
  CREATE TABLE created_table AS SELECT * FROM int8_tbl;
$$ LANGUAGE SQL;
SELECT make_table();
 make_table 
------------
 
(1 row)

SELECT * FROM created_table;
        q1        |        q2         
------------------+-------------------
              123 |               456
              123 |  4567890123456789
 4567890123456789 |               123
 4567890123456789 |  4567890123456789
 4567890123456789 | -4567890123456789
(5 rows)

-- Try EXPLAIN ANALYZE SELECT INTO and EXPLAIN ANALYZE CREATE TABLE AS
-- WITH NO DATA, but hide the outputs since they won't be stable.
DO $$
BEGIN
	EXECUTE 'EXPLAIN ANALYZE SELECT * INTO TABLE easi FROM int8_tbl';
	EXECUTE 'EXPLAIN ANALYZE CREATE TABLE easi2 AS SELECT * FROM int8_tbl WITH NO DATA';
END$$;
DROP TABLE created_table;
DROP TABLE easi, easi2;
--
-- Disallowed uses of SELECT ... INTO.  All should fail
--
DECLARE foo CURSOR FOR SELECT 1 INTO int4_tbl;
ERROR:  SELECT ... INTO is not allowed here
LINE 1: DECLARE foo CURSOR FOR SELECT 1 INTO int4_tbl;
                                             ^
COPY (SELECT 1 INTO frak UNION SELECT 2) TO 'blob';
ERROR:  COPY (SELECT INTO) is not supported
SELECT * FROM (SELECT 1 INTO f) bar;
ERROR:  SELECT ... INTO is not allowed here
LINE 1: SELECT * FROM (SELECT 1 INTO f) bar;
                                     ^
CREATE VIEW foo AS SELECT 1 INTO int4_tbl;
ERROR:  views must not contain SELECT INTO
INSERT INTO int4_tbl SELECT 1 INTO f;
ERROR:  SELECT ... INTO is not allowed here
LINE 1: INSERT INTO int4_tbl SELECT 1 INTO f;
                                           ^
-- Test CREATE TABLE AS ... IF NOT EXISTS
CREATE TABLE ctas_ine_tbl AS SELECT 1;
CREATE TABLE ctas_ine_tbl AS SELECT 1 / 0; -- error
ERROR:  relation "ctas_ine_tbl" already exists
CREATE TABLE IF NOT EXISTS ctas_ine_tbl AS SELECT 1 / 0; -- ok
NOTICE:  relation "ctas_ine_tbl" already exists, skipping
CREATE TABLE ctas_ine_tbl AS SELECT 1 / 0 WITH NO DATA; -- error
ERROR:  relation "ctas_ine_tbl" already exists
CREATE TABLE IF NOT EXISTS ctas_ine_tbl AS SELECT 1 / 0 WITH NO DATA; -- ok
NOTICE:  relation "ctas_ine_tbl" already exists, skipping
EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
  CREATE TABLE ctas_ine_tbl AS SELECT 1 / 0; -- error
ERROR:  relation "ctas_ine_tbl" already exists
EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
  CREATE TABLE IF NOT EXISTS ctas_ine_tbl AS SELECT 1 / 0; -- ok
NOTICE:  relation "ctas_ine_tbl" already exists, skipping
 QUERY PLAN 
------------
(0 rows)

EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
  CREATE TABLE ctas_ine_tbl AS SELECT 1 / 0 WITH NO DATA; -- error
ERROR:  relation "ctas_ine_tbl" already exists
EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
  CREATE TABLE IF NOT EXISTS ctas_ine_tbl AS SELECT 1 / 0 WITH NO DATA; -- ok
NOTICE:  relation "ctas_ine_tbl" already exists, skipping
 QUERY PLAN 
------------
(0 rows)

PREPARE ctas_ine_query AS SELECT 1 / 0;
EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
  CREATE TABLE ctas_ine_tbl AS EXECUTE ctas_ine_query; -- error
ERROR:  relation "ctas_ine_tbl" already exists
EXPLAIN (ANALYZE, COSTS OFF, SUMMARY OFF, TIMING OFF)
  CREATE TABLE IF NOT EXISTS ctas_ine_tbl AS EXECUTE ctas_ine_query; -- ok
NOTICE:  relation "ctas_ine_tbl" already exists, skipping
 QUERY PLAN 
------------
(0 rows)

DROP TABLE ctas_ine_tbl;