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Add support for the RETURNING clause following PostgreSQL syntax.

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FossilOrigin-Name: 416c898bfb8ff9639ffbaefcfb47fce3782763af1fc67969fa91c5f01a336676
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drh
2021-02-03 13:08:09 +00:00
parent 78197e0f8b 2aa41c82da
commit cd39cda00c
18 changed files with 428 additions and 89 deletions
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87
test/returning1.test Normal file
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@ -0,0 +1,87 @@
# 2021-01-28
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library. The
# focus of this file is the new RETURNING clause
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix returning1
do_execsql_test 1.0 {
CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c DEFAULT 'pax');
INSERT INTO t1(b) VALUES(10),('happy'),(NULL) RETURNING a,b,c;
} {1 10 pax 2 happy pax 3 {} pax}
do_execsql_test 1.1 {
SELECT * FROM t1;
} {1 10 pax 2 happy pax 3 {} pax}
do_execsql_test 1.2 {
INSERT INTO t1(b,c) VALUES(5,99) RETURNING b,c,a,rowid;
} {5 99 4 4}
do_execsql_test 1.3 {
SELECT * FROM t1;
} {1 10 pax 2 happy pax 3 {} pax 4 5 99}
do_execsql_test 1.4 {
INSERT INTO t1 DEFAULT VALUES RETURNING *;
} {5 {} pax}
do_execsql_test 1.5 {
SELECT * FROM t1;
} {1 10 pax 2 happy pax 3 {} pax 4 5 99 5 {} pax}
do_execsql_test 1.6 {
CREATE TABLE t2(x,y,z);
INSERT INTO t2 VALUES(11,12,13),(21,'b','c'),(31,'b-value',4.75);
}
do_execsql_test 1.7 {
INSERT INTO t1 SELECT * FROM t2 RETURNING *;
} {11 12 13 21 b c 31 b-value 4.75}
do_execsql_test 1.8 {
SELECT *, '|' FROM t1;
} {1 10 pax | 2 happy pax | 3 {} pax | 4 5 99 | 5 {} pax | 11 12 13 | 21 b c | 31 b-value 4.75 |}
do_execsql_test 2.1 {
UPDATE t1 SET c='bellum' WHERE c='pax' RETURNING rowid, b, '|';
} {1 10 | 2 happy | 3 {} | 5 {} |}
do_execsql_test 2.2 {
SELECT *, '|' FROM t1;
} {1 10 bellum | 2 happy bellum | 3 {} bellum | 4 5 99 | 5 {} bellum | 11 12 13 | 21 b c | 31 b-value 4.75 |}
do_execsql_test 3.1 {
DELETE FROM t1 WHERE c='bellum' RETURNING rowid, *, '|';
} {1 1 10 bellum | 2 2 happy bellum | 3 3 {} bellum | 5 5 {} bellum |}
do_execsql_test 3.2 {
SELECT *, '|' FROM t1;
} {4 5 99 | 11 12 13 | 21 b c | 31 b-value 4.75 |}
do_execsql_test 4.1 {
CREATE TABLE t4(a INT, b INT DEFAULT 1234, c INT DEFAULT -16);
CREATE UNIQUE INDEX t4a ON t4(a);
INSERT INTO t4(a,b,c) VALUES(1,2,3);
} {}
do_execsql_test 4.2 {
INSERT INTO t4(a,b,c) VALUES(1,22,33)
ON CONFLICT(a) DO UPDATE SET b=44
RETURNING *;
} {1 44 3}
do_execsql_test 4.3 {
SELECT * FROM t4;
} {1 44 3}
do_execsql_test 4.4 {
DELETE FROM t4;
INSERT INTO t4 VALUES(1,2,3),(4,5,6),(7,8,9);
} {}
do_execsql_test 4.5 {
INSERT INTO t4(a,b,c) VALUES(2,3,4),(4,5,6),(5,6,7)
ON CONFLICT(a) DO UPDATE SET b=100
RETURNING *, '|';
} {2 3 4 | 4 100 6 | 5 6 7 |}
finish_test

22
test/wherelimit.test
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@ -94,21 +94,31 @@ ifcapable {update_delete_limit} {
execsql {DELETE FROM t1 ORDER BY x LIMIT 5}
execsql {SELECT count(*) FROM t1}
} {15}
create_test_data 4
do_test wherelimit-1.3b {
# limit 5
execsql {DELETE FROM t1 RETURNING x, y, '|' ORDER BY x, y LIMIT 5}
} {1 1 | 1 2 | 1 3 | 1 4 | 2 1 |}
do_test wherelimit-1.3c {
execsql {SELECT count(*) FROM t1}
} {11}
do_test wherelimit-1.4 {
# limit 5, offset 2
execsql {DELETE FROM t1 ORDER BY x LIMIT 5 OFFSET 2}
execsql {DELETE FROM t1 RETURNING x, y, '|' ORDER BY x LIMIT 5 OFFSET 2}
} {2 4 | 3 1 | 3 2 | 3 3 | 3 4 |}
do_test wherelimit-1.4cnt {
execsql {SELECT count(*) FROM t1}
} {10}
} {6}
do_test wherelimit-1.5 {
# limit 5, offset -2
execsql {DELETE FROM t1 ORDER BY x LIMIT 5 OFFSET -2}
execsql {SELECT count(*) FROM t1}
} {5}
} {1}
do_test wherelimit-1.6 {
# limit -5 (no limit), offset 2
execsql {DELETE FROM t1 ORDER BY x LIMIT 2, -5}
execsql {SELECT count(*) FROM t1}
} {2}
} {1}
do_test wherelimit-1.7 {
# limit 5, offset -2 (no offset)
execsql {DELETE FROM t1 ORDER BY x LIMIT -2, 5}
@ -227,7 +237,9 @@ ifcapable {update_delete_limit} {
} {11}
create_test_data 6
do_test wherelimit-3.2 {
execsql {UPDATE t1 SET y=1 WHERE x=1 LIMIT 5}
execsql {UPDATE t1 SET y=1 WHERE x=1 RETURNING x, old.y, '|' LIMIT 5}
} {1 1 | 1 2 | 1 3 | 1 4 | 1 5 |}
do_test wherelimit-3.2cnt {
execsql {SELECT count(*) FROM t1 WHERE y=1}
} {10}
do_test wherelimit-3.3 {