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Overview
| Comment: | Fix a problem involving "DELETE/UPDATE...LIMIT" statements that use an INDEXED BY clause. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | update-delete-limit-fix |
| Files: | files | file ages | folders |
| SHA3-256: |
09f94c2c8199b0d23a45cc062ca9561f |
| User & Date: | dan 2017-11-10 16:14:26 |
Context
|
2017-11-10
| ||
| 17:47 | Add further tests for the code on this branch. check-in: f8c4e33f user: dan tags: update-delete-limit-fix | |
| 16:14 | Fix a problem involving "DELETE/UPDATE...LIMIT" statements that use an INDEXED BY clause. check-in: 09f94c2c user: dan tags: update-delete-limit-fix | |
| 15:42 | Fix a problem with (DELETE...LIMIT) statements against WITHOUT ROWID tables with a single column PK. check-in: 35477a3d user: dan tags: update-delete-limit-fix | |
Changes
Changes to src/delete.c.
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}
/* duplicate the FROM clause as it is needed by both the DELETE/UPDATE tree
** and the SELECT subtree. */
pSrc->a[0].pTab = 0;
pSelectSrc = sqlite3SrcListDup(pParse->db, pSrc, 0);
pSrc->a[0].pTab = pTab;
/* generate the SELECT expression tree. */
pSelect = sqlite3SelectNew(pParse, pEList, pSelectSrc, pWhere, 0 ,0,
pOrderBy,0,pLimit,pOffset
);
/* now generate the new WHERE rowid IN clause for the DELETE/UDPATE */
|
> |
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}
/* duplicate the FROM clause as it is needed by both the DELETE/UPDATE tree
** and the SELECT subtree. */
pSrc->a[0].pTab = 0;
pSelectSrc = sqlite3SrcListDup(pParse->db, pSrc, 0);
pSrc->a[0].pTab = pTab;
pSrc->a[0].pIBIndex = 0;
/* generate the SELECT expression tree. */
pSelect = sqlite3SelectNew(pParse, pEList, pSelectSrc, pWhere, 0 ,0,
pOrderBy,0,pLimit,pOffset
);
/* now generate the new WHERE rowid IN clause for the DELETE/UDPATE */
|
Changes to test/wherelimit2.test.
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} {
update 6 update 5 update 4
}
#-------------------------------------------------------------------------
# Simple test using WITHOUT ROWID table.
#
do_execsql_test 2.0 {
CREATE TABLE t2(a, b, c, PRIMARY KEY(a, b)) WITHOUT ROWID;
INSERT INTO t2 VALUES(1, 1, 'h');
INSERT INTO t2 VALUES(1, 2, 'g');
INSERT INTO t2 VALUES(2, 1, 'f');
INSERT INTO t2 VALUES(2, 2, 'e');
INSERT INTO t2 VALUES(3, 1, 'd');
INSERT INTO t2 VALUES(3, 2, 'c');
INSERT INTO t2 VALUES(4, 1, 'b');
INSERT INTO t2 VALUES(4, 2, 'a');
}
do_execsql_test 2.1 {
BEGIN;
DELETE FROM t2 WHERE b=1 ORDER BY c LIMIT 2;
SELECT c FROM t2 ORDER BY 1;
ROLLBACK;
} {a c e f g h}
do_execsql_test 2.2 {
BEGIN;
UPDATE t2 SET c=NULL ORDER BY a, b DESC LIMIT 3 OFFSET 1;
SELECT a, b, c FROM t2;
ROLLBACK;
} {
1 1 {}
1 2 g
................................................................................
2 1 {}
2 2 {}
3 1 d
3 2 c
4 1 b
4 2 a
}
#-------------------------------------------------------------------------
# Test using a virtual table
#
ifcapable fts5 {
do_execsql_test 3.0 {
CREATE VIRTUAL TABLE ft USING fts5(x);
................................................................................
ROLLBACK;
} {{a a} {a b} {a c} hello hello {a b} {a a}}
} ;# fts5
#-------------------------------------------------------------------------
# Test using INDEXED BY clauses.
#
foreach {tn t} {1 "" 2 "WITHOUT ROWID"} {
execsql "DROP TABLE IF EXISTS x1"
execsql "CREATE TABLE x1(a INTEGER PRIMARY KEY, b, c, d) $t"
do_execsql_test 4.$tn.0 {
CREATE INDEX x1bc ON x1(b, c);
INSERT INTO x1 VALUES(1,1,1,1);
INSERT INTO x1 VALUES(2,1,2,2);
INSERT INTO x1 VALUES(3,2,1,3);
INSERT INTO x1 VALUES(4,2,2,3);
INSERT INTO x1 VALUES(5,3,1,2);
INSERT INTO x1 VALUES(6,3,2,1);
}
do_execsql_test 4.$tn.1 {
BEGIN;
DELETE FROM x1 ORDER BY a LIMIT 2;
SELECT a FROM x1;
ROLLBACK;
} {3 4 5 6}
}
#-------------------------------------------------------------------------
# Test using object names that require quoting.
#
finish_test
|
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} {
update 6 update 5 update 4
}
#-------------------------------------------------------------------------
# Simple test using WITHOUT ROWID table.
#
do_execsql_test 2.1.0 {
CREATE TABLE t2(a, b, c, PRIMARY KEY(a, b)) WITHOUT ROWID;
INSERT INTO t2 VALUES(1, 1, 'h');
INSERT INTO t2 VALUES(1, 2, 'g');
INSERT INTO t2 VALUES(2, 1, 'f');
INSERT INTO t2 VALUES(2, 2, 'e');
INSERT INTO t2 VALUES(3, 1, 'd');
INSERT INTO t2 VALUES(3, 2, 'c');
INSERT INTO t2 VALUES(4, 1, 'b');
INSERT INTO t2 VALUES(4, 2, 'a');
}
do_execsql_test 2.1.1 {
BEGIN;
DELETE FROM t2 WHERE b=1 ORDER BY c LIMIT 2;
SELECT c FROM t2 ORDER BY 1;
ROLLBACK;
} {a c e f g h}
do_execsql_test 2.1.2 {
BEGIN;
UPDATE t2 SET c=NULL ORDER BY a, b DESC LIMIT 3 OFFSET 1;
SELECT a, b, c FROM t2;
ROLLBACK;
} {
1 1 {}
1 2 g
................................................................................
2 1 {}
2 2 {}
3 1 d
3 2 c
4 1 b
4 2 a
}
do_execsql_test 2.2.0 {
DROP TABLE t2;
CREATE TABLE t2(a INTEGER PRIMARY KEY, b, c) WITHOUT ROWID;
INSERT INTO t2 VALUES(1, 1, 'h');
INSERT INTO t2 VALUES(2, 2, 'g');
INSERT INTO t2 VALUES(3, 1, 'f');
INSERT INTO t2 VALUES(4, 2, 'e');
INSERT INTO t2 VALUES(5, 1, 'd');
INSERT INTO t2 VALUES(6, 2, 'c');
INSERT INTO t2 VALUES(7, 1, 'b');
INSERT INTO t2 VALUES(8, 2, 'a');
}
do_execsql_test 2.2.1 {
BEGIN;
DELETE FROM t2 WHERE b=1 ORDER BY c LIMIT 2;
SELECT c FROM t2 ORDER BY 1;
ROLLBACK;
} {a c e f g h}
do_execsql_test 2.2.2 {
BEGIN;
UPDATE t2 SET c=NULL ORDER BY a DESC LIMIT 3 OFFSET 1;
SELECT a, b, c FROM t2;
ROLLBACK;
} {
1 1 h
2 2 g
3 1 f
4 2 e
5 1 {}
6 2 {}
7 1 {}
8 2 a
}
#-------------------------------------------------------------------------
# Test using a virtual table
#
ifcapable fts5 {
do_execsql_test 3.0 {
CREATE VIRTUAL TABLE ft USING fts5(x);
................................................................................
ROLLBACK;
} {{a a} {a b} {a c} hello hello {a b} {a a}}
} ;# fts5
#-------------------------------------------------------------------------
# Test using INDEXED BY clauses.
#
do_execsql_test 4.0 {
CREATE TABLE x1(a INTEGER PRIMARY KEY, b, c, d);
CREATE INDEX x1bc ON x1(b, c);
INSERT INTO x1 VALUES(1,1,1,1);
INSERT INTO x1 VALUES(2,1,2,2);
INSERT INTO x1 VALUES(3,2,1,3);
INSERT INTO x1 VALUES(4,2,2,3);
INSERT INTO x1 VALUES(5,3,1,2);
INSERT INTO x1 VALUES(6,3,2,1);
}
do_execsql_test 4.1 {
BEGIN;
DELETE FROM x1 ORDER BY a LIMIT 2;
SELECT a FROM x1;
ROLLBACK;
} {3 4 5 6}
do_catchsql_test 4.2 {
DELETE FROM x1 INDEXED BY x1bc WHERE d=3 LIMIT 1;
} {1 {no query solution}}
do_execsql_test 4.3 {
DELETE FROM x1 INDEXED BY x1bc WHERE b=3 LIMIT 1;
SELECT a FROM x1;
} {1 2 3 4 6}
do_catchsql_test 4.4 {
UPDATE x1 INDEXED BY x1bc SET d=5 WHERE d=3 LIMIT 1;
} {1 {no query solution}}
do_execsql_test 4.5 {
UPDATE x1 INDEXED BY x1bc SET d=5 WHERE b=2 LIMIT 1;
SELECT a, d FROM x1;
} {1 1 2 2 3 5 4 3 6 1}
#-------------------------------------------------------------------------
# Test using object names that require quoting.
#
finish_test
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