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Performance optimizations in the code generator, especially in name

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resolution.

FossilOrigin-Name: ab83a99899ceae931b43e0c4b3f8f8b83bc832f1568de5692c0d038c968f8a87
This commit is contained in:
drh
2021-04-16 22:53:57 +00:00
parent 453954b0de
commit de0e1b150c
4 changed files with 25 additions and 25 deletions
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8
src/expr.c
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@@ -52,6 +52,10 @@ char sqlite3ExprAffinity(const Expr *pExpr){
assert( pExpr!=0 );
}
op = pExpr->op;
if( op==TK_REGISTER ) op = pExpr->op2;
if( (op==TK_COLUMN || op==TK_AGG_COLUMN) && pExpr->y.pTab ){
return sqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn);
}
if( op==TK_SELECT ){
assert( pExpr->flags&EP_xIsSelect );
assert( pExpr->x.pSelect!=0 );
@@ -59,16 +63,12 @@ char sqlite3ExprAffinity(const Expr *pExpr){
assert( pExpr->x.pSelect->pEList->a[0].pExpr!=0 );
return sqlite3ExprAffinity(pExpr->x.pSelect->pEList->a[0].pExpr);
}
if( op==TK_REGISTER ) op = pExpr->op2;
#ifndef SQLITE_OMIT_CAST
if( op==TK_CAST ){
assert( !ExprHasProperty(pExpr, EP_IntValue) );
return sqlite3AffinityType(pExpr->u.zToken, 0);
}
#endif
if( (op==TK_AGG_COLUMN || op==TK_COLUMN) && pExpr->y.pTab ){
return sqlite3TableColumnAffinity(pExpr->y.pTab, pExpr->iColumn);
}
if( op==TK_SELECT_COLUMN ){
assert( pExpr->pLeft->flags&EP_xIsSelect );
return sqlite3ExprAffinity(