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Overview
| Comment: | Make sure extra parentheses around subqueries in the FROM clause are harmless. Ticket [28c6e830f239ea5]. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
1c79569226db3d5a73e65a35877635ea |
| User & Date: | drh 2013-04-30 14:06:57 |
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: bd92de0e user: drh tags: trunk) | |
| 14:06 | Make sure extra parentheses around subqueries in the FROM clause are harmless. Ticket [28c6e830f239ea5]. (check-in: 1c795692 user: drh tags: trunk) | |
|
2013-04-29
| ||
| 18:07 | Improve the error message issued when an FTS query exceeds the maximum allowable tree depth. (check-in: f480b1fe user: dan tags: trunk) | |
Changes
Changes to src/parse.y.
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}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);
|
> > |
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}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.
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} {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}
#-----------------------------------------------------------------------
# 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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} {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 {
|