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New assert() statements to protect the u1 and u2 unions of SrcList.

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FossilOrigin-Name: 9b91fbcfcc14048f7d0755d47d9b7f9212fa2eaa6f3c04f417fa16c3a47943bf
This commit is contained in:
drh
2021-10-07 23:04:50 +00:00
parent 477572b9f1
commit dbfbb5a0c5
7 changed files with 19 additions and 13 deletions
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src/select.c
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@@ -4995,6 +4995,7 @@ int sqlite3IndexedByLookup(Parse *pParse, SrcItem *pFrom){
pParse->checkSchema = 1;
return SQLITE_ERROR;
}
assert( pFrom->fg.isCte==0 );
pFrom->u2.pIBIndex = pIdx;
return SQLITE_OK;
}
@@ -5252,6 +5253,7 @@ static int resolveFromTermToCte(
if( db->mallocFailed ) return 2;
pFrom->pSelect->selFlags |= SF_CopyCte;
assert( pFrom->pSelect );
assert( pFrom->fg.isIndexedBy==0 ); /* Prevent collision in union u2 */
pFrom->fg.isCte = 1;
pFrom->u2.pCteUse = pCteUse;
pCteUse->nUse++;