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Detect and report circularly defined views even if the views have the

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columns defined in the CREATE VIEW statement.

FossilOrigin-Name: 9ab9c8c6d747647f8ade58c2c4812fc69a813368
This commit is contained in:
drh
2015-10-11 20:39:46 +00:00
parent 2906490b71
commit bfad7be78a
4 changed files with 19 additions and 8 deletions
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4
src/select.c
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@@ -4248,6 +4248,7 @@ static int selectExpander(Walker *pWalker, Select *p){
pTab->nRef++;
#if !defined(SQLITE_OMIT_VIEW) || !defined (SQLITE_OMIT_VIRTUALTABLE)
if( pTab->pSelect || IsVirtual(pTab) ){
i16 nCol;
if( sqlite3ViewGetColumnNames(pParse, pTab) ) return WRC_Abort;
assert( pFrom->pSelect==0 );
if( pFrom->fg.isTabFunc && !IsVirtual(pTab) ){
@@ -4256,7 +4257,10 @@ static int selectExpander(Walker *pWalker, Select *p){
}
pFrom->pSelect = sqlite3SelectDup(db, pTab->pSelect, 0);
sqlite3SelectSetName(pFrom->pSelect, pTab->zName);
nCol = pTab->nCol;
pTab->nCol = -1;
sqlite3WalkSelect(pWalker, pFrom->pSelect);
pTab->nCol = nCol;
}
#endif
}