HyukjinKwon commented on code in PR #50355:
URL: https://github.com/apache/spark/pull/50355#discussion_r2011373286
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/timeExpressions.scala:
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@@ -233,3 +233,73 @@ object MinuteExpressionBuilder extends ExpressionBuilder {
}
}
}
+
+@ExpressionDescription(
+ usage = """
+ _FUNC_(time_expr) - Returns the hour component of the given time.
+ """,
+ examples = """
+ Examples:
+ > SELECT _FUNC_(TIME'11:35:35.999999');
+ 11
+ """,
+ since = "4.1.0",
Review Comment:
I am still confused by this. We registered `HourExpressionBuilder` so this
description won't be shown via `DESC FUNCTION EXTENDED hour` right?
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