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Simplified logic to extract a column from a row value.

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FossilOrigin-Name: e8f105c3009e9b667db2afc0088b020a2b94d370
This commit is contained in:
drh
2016-09-05 22:50:48 +00:00
parent c1bcd9cc3e
commit 9f24b53dcc
3 changed files with 9 additions and 10 deletions
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5
src/expr.c
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@@ -371,9 +371,8 @@ int sqlite3ExprVectorSize(Expr *pExpr){
Expr *sqlite3VectorFieldSubexpr(Expr *pVector, int i){
assert( i<sqlite3ExprVectorSize(pVector) );
if( sqlite3ExprIsVector(pVector) ){
if( pVector->op==TK_SELECT
|| (pVector->op==TK_REGISTER && pVector->op2==TK_SELECT)
){
assert( pVector->op2==0 || pVector->op==TK_REGISTER );
if( pVector->op==TK_SELECT || pVector->op2==TK_SELECT ){
return pVector->x.pSelect->pEList->a[i].pExpr;
}else{
return pVector->x.pList->a[i].pExpr;