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Add the EP_Leaf flag bit to the Expr.flags field to indicate Expr

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nodes that do not have substructure.  Use that bit to avoid unnecessary
recursion.

FossilOrigin-Name: 8a6ea455cd1bf42ae0a7f1f1789baf88d782db13
This commit is contained in:
drh
2016-09-23 21:36:24 +00:00
parent e1c03b6233
commit 209bc522b0
7 changed files with 29 additions and 18 deletions
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2
src/attach.c
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@@ -530,7 +530,7 @@ int sqlite3FixExpr(
return 1;
}
}
if( ExprHasProperty(pExpr, EP_TokenOnly) ) break;
if( ExprHasProperty(pExpr, EP_TokenOnly|EP_Leaf) ) break;
if( ExprHasProperty(pExpr, EP_xIsSelect) ){
if( sqlite3FixSelect(pFix, pExpr->x.pSelect) ) return 1;
}else{