himanshug commented on a change in pull request #8373: Speed up
ExpressionSelectors.makeExprEvalSelector
URL: https://github.com/apache/incubator-druid/pull/8373#discussion_r316822901
##########
File path: core/src/main/java/org/apache/druid/math/expr/Expr.java
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@@ -338,8 +336,8 @@ public BindingDetails withScalarArguments(Set<Expr>
scalarArguments)
{
Set<IdentifierExpr> moreScalars = new HashSet<>();
for (Expr expr : scalarArguments) {
- final IdentifierExpr stringIdentifier =
expr.getIdentifierExprIfIdentifierExpr();
- if (stringIdentifier != null) {
+ final boolean isIdentiferExpr =
expr.getIdentifierExprIfIdentifierExpr() != null;
+ if (isIdentiferExpr) {
Review comment:
does this change really contribute to perf? if not then older version is
more conventional IMHO.
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