linrrzqqq commented on code in PR #68853:
URL: https://github.com/apache/doris/pull/68853#discussion_r4279929638
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/ElementAt.java:
##########
@@ -127,23 +133,58 @@ public List<FunctionSignature> getSignatures() {
if (arg0Type instanceof NullType) {
return ImmutableList.of(
FunctionSignature.ret(NullType.INSTANCE).args(NullType.INSTANCE,
child(1).getDataType()));
- }
- if (arg0Type instanceof StructType) {
+ } else if (arg0Type instanceof StructType) {
return
ImmutableList.of(FunctionSignature.ret(structFieldType((StructType) arg0Type))
.args(arg0Type, child(1).getDataType()));
- }
- if (arg0Type instanceof VariantType) {
+ } else if (arg0Type instanceof VariantType) {
DataType selectorType = child(1).getDataType();
if (selectorType.isIntegralType() || selectorType.isBooleanType())
{
return ImmutableList.of(VARIANT_INDEX_SIGNATURE);
}
if (selectorType.isStringLikeType()) {
return ImmutableList.of(VARIANT_KEY_SIGNATURE);
}
+ } else if (arg0Type.isFileType()) {
+ return
ImmutableList.of(FunctionSignature.ret(fileField().getDataType())
+ .args(arg0Type, child(1).getDataType()));
Review Comment:
不会，file 也应该走这个优化
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