amorynan commented on code in PR #50201:
URL: https://github.com/apache/doris/pull/50201#discussion_r2052024378
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fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/ArrayMap.java:
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@@ -66,6 +66,13 @@ public ArrayMap withChildren(List<Expression> children) {
public DataType getDataType() {
Preconditions.checkArgument(children.get(0) instanceof Lambda,
"The first arg of array_map must be lambda");
+ Preconditions.checkArgument(children.size() > 1,
+ "The args of array_map must more than 1");
+ // children after lambda must be array
+ for (int i = 1; i < children.size(); i++) {
+ Preconditions.checkArgument(children.get(i).getDataType()
instanceof ArrayType,
+ "The next arg of array_map must be array");
Review Comment:
here is no need to add this check , because child of lambda is
ArrayItemReference, which already has type limit
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