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The following commit(s) were added to refs/heads/master by this push:
new ad8ec809b0 [fix](nereids) FoldConstantRuleOnFe throw npe if function
do not have child (#15008)
ad8ec809b0 is described below
commit ad8ec809b0b52b410eca79896c3ccbb11e406754
Author: minghong <[email protected]>
AuthorDate: Mon Dec 12 22:48:21 2022 +0800
[fix](nereids) FoldConstantRuleOnFe throw npe if function do not have child
(#15008)
FoldConstantRuleOnFe missed one type of function, which do not have input
arguments, like current_date
---
.../nereids/rules/expression/rewrite/rules/FoldConstantRuleOnFE.java | 4 ++++
1 file changed, 4 insertions(+)
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/expression/rewrite/rules/FoldConstantRuleOnFE.java
b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/expression/rewrite/rules/FoldConstantRuleOnFE.java
index d576195389..1fc7c9ce00 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/expression/rewrite/rules/FoldConstantRuleOnFE.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/expression/rewrite/rules/FoldConstantRuleOnFE.java
@@ -218,6 +218,10 @@ public class FoldConstantRuleOnFE extends
AbstractExpressionRewriteRule {
@Override
public Expression visitBoundFunction(BoundFunction boundFunction,
ExpressionRewriteContext context) {
+ //functions, like current_date, do not have arg
+ if (boundFunction.getArguments().isEmpty()) {
+ return boundFunction;
+ }
List<Expression> newArgs =
boundFunction.getArguments().stream().map(arg -> process(arg, context))
.collect(Collectors.toList());
if (ExpressionUtils.isAllLiteral(newArgs)) {
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