postgresql/src/test/regress/expected/prepare.out
Michael Paquier 537898bd81 Add more tests for CREATE TABLE AS with WITH NO DATA
The relation creation is done at executor startup, however the main
regression test suite is lacking scenarios where no data is inserted
which is something that can happen when using EXECUTE or EXPLAIN with
CREATE TABLE AS and WITH NO DATA.

Some patches are worked on to reshape the way CTAS relations are
created, so this makes sure that we do not miss some query patterns
already supported.

Reported-by: Andreas Karlsson
Author: Michael Paquier
Reviewed-by: Andreas Karlsson
Discussion: https://postgr.es/m/20190206091817.GB14980@paquier.xyz
2019-02-07 09:21:57 +09:00

188 lines
12 KiB
Plaintext

-- Regression tests for prepareable statements. We query the content
-- of the pg_prepared_statements view as prepared statements are
-- created and removed.
SELECT name, statement, parameter_types FROM pg_prepared_statements;
name | statement | parameter_types
------+-----------+-----------------
(0 rows)
PREPARE q1 AS SELECT 1 AS a;
EXECUTE q1;
a
---
1
(1 row)
SELECT name, statement, parameter_types FROM pg_prepared_statements;
name | statement | parameter_types
------+------------------------------+-----------------
q1 | PREPARE q1 AS SELECT 1 AS a; | {}
(1 row)
-- should fail
PREPARE q1 AS SELECT 2;
ERROR: prepared statement "q1" already exists
-- should succeed
DEALLOCATE q1;
PREPARE q1 AS SELECT 2;
EXECUTE q1;
?column?
----------
2
(1 row)
PREPARE q2 AS SELECT 2 AS b;
SELECT name, statement, parameter_types FROM pg_prepared_statements;
name | statement | parameter_types
------+------------------------------+-----------------
q1 | PREPARE q1 AS SELECT 2; | {}
q2 | PREPARE q2 AS SELECT 2 AS b; | {}
(2 rows)
-- sql92 syntax
DEALLOCATE PREPARE q1;
SELECT name, statement, parameter_types FROM pg_prepared_statements;
name | statement | parameter_types
------+------------------------------+-----------------
q2 | PREPARE q2 AS SELECT 2 AS b; | {}
(1 row)
DEALLOCATE PREPARE q2;
-- the view should return the empty set again
SELECT name, statement, parameter_types FROM pg_prepared_statements;
name | statement | parameter_types
------+-----------+-----------------
(0 rows)
-- parameterized queries
PREPARE q2(text) AS
SELECT datname, datistemplate, datallowconn
FROM pg_database WHERE datname = $1;
EXECUTE q2('postgres');
datname | datistemplate | datallowconn
----------+---------------+--------------
postgres | f | t
(1 row)
PREPARE q3(text, int, float, boolean, smallint) AS
SELECT * FROM tenk1 WHERE string4 = $1 AND (four = $2 OR
ten = $3::bigint OR true = $4 OR odd = $5::int)
ORDER BY unique1;
EXECUTE q3('AAAAxx', 5::smallint, 10.5::float, false, 4::bigint);
unique1 | unique2 | two | four | ten | twenty | hundred | thousand | twothousand | fivethous | tenthous | odd | even | stringu1 | stringu2 | string4
---------+---------+-----+------+-----+--------+---------+----------+-------------+-----------+----------+-----+------+----------+----------+---------
2 | 2716 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 4 | 5 | CAAAAA | MAEAAA | AAAAxx
102 | 612 | 0 | 2 | 2 | 2 | 2 | 102 | 102 | 102 | 102 | 4 | 5 | YDAAAA | OXAAAA | AAAAxx
802 | 2908 | 0 | 2 | 2 | 2 | 2 | 802 | 802 | 802 | 802 | 4 | 5 | WEAAAA | WHEAAA | AAAAxx
902 | 1104 | 0 | 2 | 2 | 2 | 2 | 902 | 902 | 902 | 902 | 4 | 5 | SIAAAA | MQBAAA | AAAAxx
1002 | 2580 | 0 | 2 | 2 | 2 | 2 | 2 | 1002 | 1002 | 1002 | 4 | 5 | OMAAAA | GVDAAA | AAAAxx
1602 | 8148 | 0 | 2 | 2 | 2 | 2 | 602 | 1602 | 1602 | 1602 | 4 | 5 | QJAAAA | KBMAAA | AAAAxx
1702 | 7940 | 0 | 2 | 2 | 2 | 2 | 702 | 1702 | 1702 | 1702 | 4 | 5 | MNAAAA | KTLAAA | AAAAxx
2102 | 6184 | 0 | 2 | 2 | 2 | 2 | 102 | 102 | 2102 | 2102 | 4 | 5 | WCAAAA | WDJAAA | AAAAxx
2202 | 8028 | 0 | 2 | 2 | 2 | 2 | 202 | 202 | 2202 | 2202 | 4 | 5 | SGAAAA | UWLAAA | AAAAxx
2302 | 7112 | 0 | 2 | 2 | 2 | 2 | 302 | 302 | 2302 | 2302 | 4 | 5 | OKAAAA | ONKAAA | AAAAxx
2902 | 6816 | 0 | 2 | 2 | 2 | 2 | 902 | 902 | 2902 | 2902 | 4 | 5 | QHAAAA | ECKAAA | AAAAxx
3202 | 7128 | 0 | 2 | 2 | 2 | 2 | 202 | 1202 | 3202 | 3202 | 4 | 5 | ETAAAA | EOKAAA | AAAAxx
3902 | 9224 | 0 | 2 | 2 | 2 | 2 | 902 | 1902 | 3902 | 3902 | 4 | 5 | CUAAAA | UQNAAA | AAAAxx
4102 | 7676 | 0 | 2 | 2 | 2 | 2 | 102 | 102 | 4102 | 4102 | 4 | 5 | UBAAAA | GJLAAA | AAAAxx
4202 | 6628 | 0 | 2 | 2 | 2 | 2 | 202 | 202 | 4202 | 4202 | 4 | 5 | QFAAAA | YUJAAA | AAAAxx
4502 | 412 | 0 | 2 | 2 | 2 | 2 | 502 | 502 | 4502 | 4502 | 4 | 5 | ERAAAA | WPAAAA | AAAAxx
4702 | 2520 | 0 | 2 | 2 | 2 | 2 | 702 | 702 | 4702 | 4702 | 4 | 5 | WYAAAA | YSDAAA | AAAAxx
4902 | 1600 | 0 | 2 | 2 | 2 | 2 | 902 | 902 | 4902 | 4902 | 4 | 5 | OGAAAA | OJCAAA | AAAAxx
5602 | 8796 | 0 | 2 | 2 | 2 | 2 | 602 | 1602 | 602 | 5602 | 4 | 5 | MHAAAA | IANAAA | AAAAxx
6002 | 8932 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 1002 | 6002 | 4 | 5 | WWAAAA | OFNAAA | AAAAxx
6402 | 3808 | 0 | 2 | 2 | 2 | 2 | 402 | 402 | 1402 | 6402 | 4 | 5 | GMAAAA | MQFAAA | AAAAxx
7602 | 1040 | 0 | 2 | 2 | 2 | 2 | 602 | 1602 | 2602 | 7602 | 4 | 5 | KGAAAA | AOBAAA | AAAAxx
7802 | 7508 | 0 | 2 | 2 | 2 | 2 | 802 | 1802 | 2802 | 7802 | 4 | 5 | COAAAA | UCLAAA | AAAAxx
8002 | 9980 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 3002 | 8002 | 4 | 5 | UVAAAA | WTOAAA | AAAAxx
8302 | 7800 | 0 | 2 | 2 | 2 | 2 | 302 | 302 | 3302 | 8302 | 4 | 5 | IHAAAA | AOLAAA | AAAAxx
8402 | 5708 | 0 | 2 | 2 | 2 | 2 | 402 | 402 | 3402 | 8402 | 4 | 5 | ELAAAA | OLIAAA | AAAAxx
8602 | 5440 | 0 | 2 | 2 | 2 | 2 | 602 | 602 | 3602 | 8602 | 4 | 5 | WSAAAA | GBIAAA | AAAAxx
9502 | 1812 | 0 | 2 | 2 | 2 | 2 | 502 | 1502 | 4502 | 9502 | 4 | 5 | MBAAAA | SRCAAA | AAAAxx
9602 | 9972 | 0 | 2 | 2 | 2 | 2 | 602 | 1602 | 4602 | 9602 | 4 | 5 | IFAAAA | OTOAAA | AAAAxx
(29 rows)
-- too few params
EXECUTE q3('bool');
ERROR: wrong number of parameters for prepared statement "q3"
DETAIL: Expected 5 parameters but got 1.
-- too many params
EXECUTE q3('bytea', 5::smallint, 10.5::float, false, 4::bigint, true);
ERROR: wrong number of parameters for prepared statement "q3"
DETAIL: Expected 5 parameters but got 6.
-- wrong param types
EXECUTE q3(5::smallint, 10.5::float, false, 4::bigint, 'bytea');
ERROR: parameter $3 of type boolean cannot be coerced to the expected type double precision
HINT: You will need to rewrite or cast the expression.
-- invalid type
PREPARE q4(nonexistenttype) AS SELECT $1;
ERROR: type "nonexistenttype" does not exist
LINE 1: PREPARE q4(nonexistenttype) AS SELECT $1;
^
-- create table as execute
PREPARE q5(int, text) AS
SELECT * FROM tenk1 WHERE unique1 = $1 OR stringu1 = $2
ORDER BY unique1;
CREATE TEMPORARY TABLE q5_prep_results AS EXECUTE q5(200, 'DTAAAA');
SELECT * FROM q5_prep_results;
unique1 | unique2 | two | four | ten | twenty | hundred | thousand | twothousand | fivethous | tenthous | odd | even | stringu1 | stringu2 | string4
---------+---------+-----+------+-----+--------+---------+----------+-------------+-----------+----------+-----+------+----------+----------+---------
200 | 9441 | 0 | 0 | 0 | 0 | 0 | 200 | 200 | 200 | 200 | 0 | 1 | SHAAAA | DZNAAA | HHHHxx
497 | 9092 | 1 | 1 | 7 | 17 | 97 | 497 | 497 | 497 | 497 | 194 | 195 | DTAAAA | SLNAAA | AAAAxx
1173 | 6699 | 1 | 1 | 3 | 13 | 73 | 173 | 1173 | 1173 | 1173 | 146 | 147 | DTAAAA | RXJAAA | VVVVxx
1849 | 8143 | 1 | 1 | 9 | 9 | 49 | 849 | 1849 | 1849 | 1849 | 98 | 99 | DTAAAA | FBMAAA | VVVVxx
2525 | 64 | 1 | 1 | 5 | 5 | 25 | 525 | 525 | 2525 | 2525 | 50 | 51 | DTAAAA | MCAAAA | AAAAxx
3201 | 7309 | 1 | 1 | 1 | 1 | 1 | 201 | 1201 | 3201 | 3201 | 2 | 3 | DTAAAA | DVKAAA | HHHHxx
3877 | 4060 | 1 | 1 | 7 | 17 | 77 | 877 | 1877 | 3877 | 3877 | 154 | 155 | DTAAAA | EAGAAA | AAAAxx
4553 | 4113 | 1 | 1 | 3 | 13 | 53 | 553 | 553 | 4553 | 4553 | 106 | 107 | DTAAAA | FCGAAA | HHHHxx
5229 | 6407 | 1 | 1 | 9 | 9 | 29 | 229 | 1229 | 229 | 5229 | 58 | 59 | DTAAAA | LMJAAA | VVVVxx
5905 | 9537 | 1 | 1 | 5 | 5 | 5 | 905 | 1905 | 905 | 5905 | 10 | 11 | DTAAAA | VCOAAA | HHHHxx
6581 | 4686 | 1 | 1 | 1 | 1 | 81 | 581 | 581 | 1581 | 6581 | 162 | 163 | DTAAAA | GYGAAA | OOOOxx
7257 | 1895 | 1 | 1 | 7 | 17 | 57 | 257 | 1257 | 2257 | 7257 | 114 | 115 | DTAAAA | XUCAAA | VVVVxx
7933 | 4514 | 1 | 1 | 3 | 13 | 33 | 933 | 1933 | 2933 | 7933 | 66 | 67 | DTAAAA | QRGAAA | OOOOxx
8609 | 5918 | 1 | 1 | 9 | 9 | 9 | 609 | 609 | 3609 | 8609 | 18 | 19 | DTAAAA | QTIAAA | OOOOxx
9285 | 8469 | 1 | 1 | 5 | 5 | 85 | 285 | 1285 | 4285 | 9285 | 170 | 171 | DTAAAA | TNMAAA | HHHHxx
9961 | 2058 | 1 | 1 | 1 | 1 | 61 | 961 | 1961 | 4961 | 9961 | 122 | 123 | DTAAAA | EBDAAA | OOOOxx
(16 rows)
CREATE TEMPORARY TABLE q5_prep_nodata AS EXECUTE q5(200, 'DTAAAA')
WITH NO DATA;
SELECT * FROM q5_prep_nodata;
unique1 | unique2 | two | four | ten | twenty | hundred | thousand | twothousand | fivethous | tenthous | odd | even | stringu1 | stringu2 | string4
---------+---------+-----+------+-----+--------+---------+----------+-------------+-----------+----------+-----+------+----------+----------+---------
(0 rows)
-- unknown or unspecified parameter types: should succeed
PREPARE q6 AS
SELECT * FROM tenk1 WHERE unique1 = $1 AND stringu1 = $2;
PREPARE q7(unknown) AS
SELECT * FROM road WHERE thepath = $1;
SELECT name, statement, parameter_types FROM pg_prepared_statements
ORDER BY name;
name | statement | parameter_types
------+------------------------------------------------------------------+----------------------------------------------------
q2 | PREPARE q2(text) AS +| {text}
| SELECT datname, datistemplate, datallowconn +|
| FROM pg_database WHERE datname = $1; |
q3 | PREPARE q3(text, int, float, boolean, smallint) AS +| {text,integer,"double precision",boolean,smallint}
| SELECT * FROM tenk1 WHERE string4 = $1 AND (four = $2 OR+|
| ten = $3::bigint OR true = $4 OR odd = $5::int) +|
| ORDER BY unique1; |
q5 | PREPARE q5(int, text) AS +| {integer,text}
| SELECT * FROM tenk1 WHERE unique1 = $1 OR stringu1 = $2 +|
| ORDER BY unique1; |
q6 | PREPARE q6 AS +| {integer,name}
| SELECT * FROM tenk1 WHERE unique1 = $1 AND stringu1 = $2; |
q7 | PREPARE q7(unknown) AS +| {path}
| SELECT * FROM road WHERE thepath = $1; |
(5 rows)
-- test DEALLOCATE ALL;
DEALLOCATE ALL;
SELECT name, statement, parameter_types FROM pg_prepared_statements
ORDER BY name;
name | statement | parameter_types
------+-----------+-----------------
(0 rows)