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Improve the accuracy of affinity and collating sequence analysis for

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NATURAL JOINs to the left of RIGHT JOINs where source tables are views
or subqueries.  Initial problem report in
[forum:/forumpost/829306db47|forum post 829306db47].

FossilOrigin-Name: f184d1d236e47962658a4639d9533f67a525b74cfe0f06c93e9b85fdcd02a15f
This commit is contained in:
drh
2025-06-02 18:34:17 +00:00
parent d84bbac8be
commit 342ef63e63
6 changed files with 40 additions and 14 deletions
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8
src/expr.c
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@@ -73,7 +73,9 @@ char sqlite3ExprAffinity(const Expr *pExpr){
pExpr->pLeft->x.pSelect->pEList->a[pExpr->iColumn].pExpr
);
}
if( op==TK_VECTOR ){
if( op==TK_VECTOR
|| (op==TK_FUNCTION && pExpr->affExpr==SQLITE_AFF_DEFER)
){
assert( ExprUseXList(pExpr) );
return sqlite3ExprAffinity(pExpr->x.pList->a[0].pExpr);
}
@@ -266,7 +268,9 @@ CollSeq *sqlite3ExprCollSeq(Parse *pParse, const Expr *pExpr){
p = p->pLeft;
continue;
}
if( op==TK_VECTOR ){
if( op==TK_VECTOR
|| (op==TK_FUNCTION && p->affExpr==SQLITE_AFF_DEFER)
){
assert( ExprUseXList(p) );
p = p->x.pList->a[0].pExpr;
continue;