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Overview
| Comment: | Fix a problem with resolving "db.view.column" references that appear in UPDATE or DELETE statements executed against views. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | ddee56c9b2b591b9386b1072c3b3a699 |
| User & Date: | dan 2013-03-09 14:40:24 |
Context
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2013-03-09
| ||
| 14:49 | Add a test case for the problem fixed by the previous commit. check-in: e899b058 user: dan tags: trunk | |
| 14:40 | Fix a problem with resolving "db.view.column" references that appear in UPDATE or DELETE statements executed against views. check-in: ddee56c9 user: dan tags: trunk | |
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2013-03-08
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| 18:16 | If SQLITE_OMIT_UTF16 is defined, avoid setting the 'enc' field of Schema objects to any value except SQLITE_UTF8. Otherwise, assert() statements may fail or spurious SQLITE_NOMEM errors may be returned at the vdbe level later on. check-in: f2fecfb2 user: dan tags: trunk | |
Changes
Changes to src/delete.c.
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void sqlite3MaterializeView(
Parse *pParse, /* Parsing context */
Table *pView, /* View definition */
Expr *pWhere, /* Optional WHERE clause to be added */
int iCur /* Cursor number for ephemerial table */
){
SelectDest dest;
Select *pDup;
sqlite3 *db = pParse->db;
pDup = sqlite3SelectDup(db, pView->pSelect, 0);
if( pWhere ){
SrcList *pFrom;
pWhere = sqlite3ExprDup(db, pWhere, 0);
pFrom = sqlite3SrcListAppend(db, 0, 0, 0);
if( pFrom ){
assert( pFrom->nSrc==1 );
pFrom->a[0].zAlias = sqlite3DbStrDup(db, pView->zName);
pFrom->a[0].pSelect = pDup;
assert( pFrom->a[0].pOn==0 );
assert( pFrom->a[0].pUsing==0 );
}else{
sqlite3SelectDelete(db, pDup);
}
pDup = sqlite3SelectNew(pParse, 0, pFrom, pWhere, 0, 0, 0, 0, 0, 0);
if( pDup ) pDup->selFlags |= SF_Materialize;
}
sqlite3SelectDestInit(&dest, SRT_EphemTab, iCur);
sqlite3Select(pParse, pDup, &dest);
sqlite3SelectDelete(db, pDup);
}
#endif /* !defined(SQLITE_OMIT_VIEW) && !defined(SQLITE_OMIT_TRIGGER) */
#if defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !defined(SQLITE_OMIT_SUBQUERY)
/*
** Generate an expression tree to implement the WHERE, ORDER BY,
** and LIMIT/OFFSET portion of DELETE and UPDATE statements.
|
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void sqlite3MaterializeView(
Parse *pParse, /* Parsing context */
Table *pView, /* View definition */
Expr *pWhere, /* Optional WHERE clause to be added */
int iCur /* Cursor number for ephemerial table */
){
SelectDest dest;
Select *pSel;
SrcList *pFrom;
sqlite3 *db = pParse->db;
int iDb = sqlite3SchemaToIndex(db, pView->pSchema);
pWhere = sqlite3ExprDup(db, pWhere, 0);
pFrom = sqlite3SrcListAppend(db, 0, 0, 0);
if( pFrom ){
assert( pFrom->nSrc==1 );
pFrom->a[0].zName = sqlite3DbStrDup(db, pView->zName);
pFrom->a[0].zDatabase = sqlite3DbStrDup(db, db->aDb[iDb].zName);
assert( pFrom->a[0].pOn==0 );
assert( pFrom->a[0].pUsing==0 );
}
pSel = sqlite3SelectNew(pParse, 0, pFrom, pWhere, 0, 0, 0, 0, 0, 0);
if( pSel ) pSel->selFlags |= SF_Materialize;
sqlite3SelectDestInit(&dest, SRT_EphemTab, iCur);
sqlite3Select(pParse, pSel, &dest);
sqlite3SelectDelete(db, pSel);
}
#endif /* !defined(SQLITE_OMIT_VIEW) && !defined(SQLITE_OMIT_TRIGGER) */
#if defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !defined(SQLITE_OMIT_SUBQUERY)
/*
** Generate an expression tree to implement the WHERE, ORDER BY,
** and LIMIT/OFFSET portion of DELETE and UPDATE statements.
|
Changes to test/auth.test.
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}
set authargs
} [list \
SQLITE_UPDATE v1 x main {} \
SQLITE_SELECT {} {} {} v1 \
SQLITE_READ t2 a main v1 \
SQLITE_READ t2 b main v1 \
SQLITE_SELECT {} {} {} {} \
SQLITE_READ v1 x main v1 \
SQLITE_INSERT v1chng {} main r2 \
SQLITE_READ v1 x main r2 \
SQLITE_READ v1 x main r2 \
]
do_test auth-4.4 {
................................................................................
}
set authargs
} [list \
SQLITE_DELETE v1 {} main {} \
SQLITE_SELECT {} {} {} v1 \
SQLITE_READ t2 a main v1 \
SQLITE_READ t2 b main v1 \
SQLITE_SELECT {} {} {} {} \
SQLITE_READ v1 x main v1 \
SQLITE_INSERT v1chng {} main r3 \
SQLITE_READ v1 x main r3 \
]
} ;# ifcapable view && trigger
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}
set authargs
} [list \
SQLITE_UPDATE v1 x main {} \
SQLITE_SELECT {} {} {} v1 \
SQLITE_READ t2 a main v1 \
SQLITE_READ t2 b main v1 \
SQLITE_READ v1 x main v1 \
SQLITE_READ v1 x main v1 \
SQLITE_SELECT {} {} {} v1 \
SQLITE_READ v1 x main v1 \
SQLITE_INSERT v1chng {} main r2 \
SQLITE_READ v1 x main r2 \
SQLITE_READ v1 x main r2 \
]
do_test auth-4.4 {
................................................................................
}
set authargs
} [list \
SQLITE_DELETE v1 {} main {} \
SQLITE_SELECT {} {} {} v1 \
SQLITE_READ t2 a main v1 \
SQLITE_READ t2 b main v1 \
SQLITE_READ v1 x main v1 \
SQLITE_READ v1 x main v1 \
SQLITE_SELECT {} {} {} v1 \
SQLITE_READ v1 x main v1 \
SQLITE_INSERT v1chng {} main r3 \
SQLITE_READ v1 x main r3 \
]
} ;# ifcapable view && trigger
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