mihaibudiu commented on code in PR #3947:
URL: https://github.com/apache/calcite/pull/3947#discussion_r2607669538
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core/src/main/java/org/apache/calcite/sql/fun/SqlItemOperator.java:
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@@ -136,7 +137,8 @@ private static SqlSingleOperandTypeChecker
getChecker(SqlCallBinding callBinding
if (name.equals("ITEM")) {
return "<ARRAY>[<INTEGER>]\n"
+ "<MAP>[<ANY>]\n"
- + "<ROW>[<CHARACTER>|<INTEGER>]";
+ + "<ROW>[<CHARACTER>|<INTEGER>]\n"
+ + "<VARIANT>[<ANY>]";
Review Comment:
Well, the variant value can be a MAP, and the map key can have any type, so
it should be possible to have keys with other types. But perhaps that case
requires first casting the variant to a MAP?
Clearly, one of the two is wrong, though.
Can you investigate what happens in systems like Snowflake?
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