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Overview
| Comment: | Make sure extra parentheses around subqueries in the FROM clause are harmless. Ticket [28c6e830f239ea5]. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
1c79569226db3d5a73e65a35877635ea |
| User & Date: | drh 2013-04-30 14:06:57.299 |
Context
|
2013-04-30
| ||
| 14:25 | Update the documentation to explain that when the 3rd parameter to sqlite3_bind_text() and friends is NULL the result is to bind a NULL SQL value. Ticket [19b44e35753ba] (check-in: bd92de0e8d user: drh tags: trunk) | |
| 14:06 | Make sure extra parentheses around subqueries in the FROM clause are harmless. Ticket [28c6e830f239ea5]. (check-in: 1c79569226 user: drh tags: trunk) | |
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2013-04-29
| ||
| 18:07 | Improve the error message issued when an FTS query exceeds the maximum allowable tree depth. (check-in: f480b1fe60 user: dan tags: trunk) | |
Changes
Changes to src/parse.y.
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516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 |
}else if( F->nSrc==1 ){
A = sqlite3SrcListAppendFromTerm(pParse,X,0,0,&Z,0,N,U);
if( A ){
struct SrcList_item *pNew = &A->a[A->nSrc-1];
struct SrcList_item *pOld = F->a;
pNew->zName = pOld->zName;
pNew->zDatabase = pOld->zDatabase;
pOld->zName = pOld->zDatabase = 0;
}
sqlite3SrcListDelete(pParse->db, F);
}else{
Select *pSubquery;
sqlite3SrcListShiftJoinType(F);
pSubquery = sqlite3SelectNew(pParse,0,F,0,0,0,0,SF_NestedFrom,0,0);
A = sqlite3SrcListAppendFromTerm(pParse,X,0,0,&Z,pSubquery,N,U);
| > > | 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 |
}else if( F->nSrc==1 ){
A = sqlite3SrcListAppendFromTerm(pParse,X,0,0,&Z,0,N,U);
if( A ){
struct SrcList_item *pNew = &A->a[A->nSrc-1];
struct SrcList_item *pOld = F->a;
pNew->zName = pOld->zName;
pNew->zDatabase = pOld->zDatabase;
pNew->pSelect = pOld->pSelect;
pOld->zName = pOld->zDatabase = 0;
pOld->pSelect = 0;
}
sqlite3SrcListDelete(pParse->db, F);
}else{
Select *pSubquery;
sqlite3SrcListShiftJoinType(F);
pSubquery = sqlite3SelectNew(pParse,0,F,0,0,0,0,SF_NestedFrom,0,0);
A = sqlite3SrcListAppendFromTerm(pParse,X,0,0,&Z,pSubquery,N,U);
|
| ︙ | ︙ |
Changes to test/where8.test.
| ︙ | ︙ | |||
291 292 293 294 295 296 297 298 299 300 301 302 303 304 |
} {I I I I I I I I I I II II II II II II II II II II III III III III III 9 1}
do_test where8-3.21 {
execsql_status {
SELECT a, d FROM t1, (t2) WHERE (a=d OR b=e) AND a<5 ORDER BY a
}
} {1 1 2 2 3 3 4 2 4 4 0 0}
do_test where8-3.22 {
execsql_status {
SELECT a, d FROM ((((((t1))), (((t2))))))
WHERE (a=d OR b=e) AND a<5 ORDER BY a
}
} {1 1 2 2 3 3 4 2 4 4 0 0}
| > > > > > > > > > > > > > | > | 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 |
} {I I I I I I I I I I II II II II II II II II II II III III III III III 9 1}
do_test where8-3.21 {
execsql_status {
SELECT a, d FROM t1, (t2) WHERE (a=d OR b=e) AND a<5 ORDER BY a
}
} {1 1 2 2 3 3 4 2 4 4 0 0}
do_test where8-3.21.1 {
execsql_status {
SELECT a, d FROM t1, ((t2)) AS t3 WHERE (a=d OR b=e) AND a<5 ORDER BY a
}
} {1 1 2 2 3 3 4 2 4 4 0 0}
do_test where8-3.21.2 {
execsql_status {
SELECT a, d FROM t1, ((SELECT * FROM t2)) AS t3 WHERE (a=d OR b=e) AND a<5 ORDER BY a
}
} {1 1 2 2 3 3 4 2 4 4 0 0}
do_test where8-3.22 {
execsql_status {
SELECT a, d FROM ((((((t1))), (((t2))))))
WHERE (a=d OR b=e) AND a<5 ORDER BY a
}
} {1 1 2 2 3 3 4 2 4 4 0 0}
do_test where8-3.23 {
execsql_status {
SELECT * FROM ((SELECT * FROM t2)) AS t3;
}
} {1 {} I 2 four IV 3 {} IX 4 sixteen XVI 5 {} XXV 6 thirtysix XXXVI 7 fortynine XLIX 8 sixtyeight LXIV 9 eightyone LXXXIX 10 {} C 9 0}
#-----------------------------------------------------------------------
# The following tests - where8-4.* - verify that adding or removing
# indexes does not change the results returned by various queries.
#
do_test where8-4.1 {
execsql {
|
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