chucheng92 commented on code in PR #3705:
URL: https://github.com/apache/calcite/pull/3705#discussion_r1507078891
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core/src/main/java/org/apache/calcite/sql/validate/SqlValidatorUtil.java:
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@@ -1326,6 +1327,48 @@ public static void adjustTypeForArrayConstructor(
}
}
+ /**
+ * When the array_append and array_prepend element does not equal the array
component type
+ * make explicit casting.
+ *
+ * @param componentType derived array component type
+ * @param opBinding description of call
+ */
Review Comment:
There is no need to implement this. For the form of
`array_append/array_prepend/array_insert`, the array of the first arg has been
cast. the component type has been derived. The only thing you need to do is to
cast the element sqlnode into the component type.
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