kasakrisz commented on code in PR #4696:
URL: https://github.com/apache/hive/pull/4696#discussion_r1420180384
##########
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/translator/ASTConverter.java:
##########
@@ -203,53 +201,56 @@ private static ASTNode createNullField(RelDataType
fieldType) {
return ASTBuilder.construct(HiveParser.TOK_NULL, "TOK_NULL").node();
}
+ return createCastNull(fieldType);
+ }
+
+ private static ASTNode createCastNull(RelDataType fieldType) {
+ ASTNode astNode = convertType(fieldType);
+ return ASTBuilder.construct(HiveParser.TOK_FUNCTION, "TOK_FUNCTION")
+ .add(astNode)
+ .add(HiveParser.TOK_NULL, "TOK_NULL")
+ .node();
+ }
+
+ public static ASTNode convertType(RelDataType fieldType) {
Review Comment:
removed public
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