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Overview
| Comment: | Fix a assert() in the query planner that can arise when doing row-value operations on a PRIMARY KEY that contains duplicate columns. Ticket [1a84668dcfdebaf12415d]. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: | dcb8c73594ea6b12bad98dc883a585d3 |
| User & Date: | drh 2018-11-03 13:11:24 |
Context
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2018-11-05
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| 13:35 | Fix a assert() in the query planner that can arise when doing row-value operations on a PRIMARY KEY that contains duplicate columns. Ticket [1a84668dcfdebaf12415d]. check-in: 1309c84a user: drh tags: branch-3.25 | |
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2018-11-03
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| 16:51 | Add extra defenses against strategically corrupt databases to fts3/4. check-in: d44318f5 user: dan tags: trunk | |
| 16:09 | Add the SQLITE_DBCONFIG_DEFENSIVE flag. check-in: af3f29d4 user: drh tags: dbconfig-defensive | |
| 13:11 | Fix a assert() in the query planner that can arise when doing row-value operations on a PRIMARY KEY that contains duplicate columns. Ticket [1a84668dcfdebaf12415d]. check-in: dcb8c735 user: drh tags: trunk | |
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2018-11-02
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| 17:38 | Enhance triggers so that they can use table-valued-functions that exist in schemas outside of the schema in which the trigger is defined. check-in: 1fa74930 user: drh tags: trunk | |
Changes
Changes to src/wherecode.c.
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ExprList *pLhs = 0; /* New LHS after mods */
int i; /* Loop counter */
Select *pSelect; /* Pointer to the SELECT on the RHS */
for(i=iEq; i<pLoop->nLTerm; i++){
if( pLoop->aLTerm[i]->pExpr==pX ){
int iField = pLoop->aLTerm[i]->iField - 1;
assert( pOrigRhs->a[iField].pExpr!=0 );
pRhs = sqlite3ExprListAppend(pParse, pRhs, pOrigRhs->a[iField].pExpr);
pOrigRhs->a[iField].pExpr = 0;
assert( pOrigLhs->a[iField].pExpr!=0 );
pLhs = sqlite3ExprListAppend(pParse, pLhs, pOrigLhs->a[iField].pExpr);
pOrigLhs->a[iField].pExpr = 0;
}
}
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| |
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ExprList *pLhs = 0; /* New LHS after mods */
int i; /* Loop counter */
Select *pSelect; /* Pointer to the SELECT on the RHS */
for(i=iEq; i<pLoop->nLTerm; i++){
if( pLoop->aLTerm[i]->pExpr==pX ){
int iField = pLoop->aLTerm[i]->iField - 1;
if( pOrigRhs->a[iField].pExpr==0 ) continue; /* Duplicate PK column */
pRhs = sqlite3ExprListAppend(pParse, pRhs, pOrigRhs->a[iField].pExpr);
pOrigRhs->a[iField].pExpr = 0;
assert( pOrigLhs->a[iField].pExpr!=0 );
pLhs = sqlite3ExprListAppend(pParse, pLhs, pOrigLhs->a[iField].pExpr);
pOrigLhs->a[iField].pExpr = 0;
}
}
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Changes to test/rowvalue.test.
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} {2 22 1 11}
# 2018-02-18: Memory leak nexted row-value. Detected by OSSFuzz.
#
do_catchsql_test 20.1 {
SELECT 1 WHERE (2,(2,0)) IS (2,(2,0));
} {0 1}
finish_test
|
> > > > > > > > > > > |
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} {2 22 1 11}
# 2018-02-18: Memory leak nexted row-value. Detected by OSSFuzz.
#
do_catchsql_test 20.1 {
SELECT 1 WHERE (2,(2,0)) IS (2,(2,0));
} {0 1}
# 2018-11-03: Ticket https://www.sqlite.org/src/info/1a84668dcfdebaf1
# Assertion fault when doing row-value operations on a primary key
# containing duplicate columns.
#
do_execsql_test 21.0 {
DROP TABLE IF EXISTS t1;
CREATE TABLE t1(a,b,PRIMARY KEY(b,b));
INSERT INTO t1 VALUES(1,2),(3,4),(5,6);
SELECT * FROM t1 WHERE (a,b) IN (VALUES(1,2));
} {1 2}
finish_test
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