beliefer commented on a change in pull request #28154: [SPARK-31372][SQL] Check
the validity of built-in function aliases
URL: https://github.com/apache/spark/pull/28154#discussion_r405925424
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/FunctionRegistry.scala
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@@ -350,7 +350,7 @@ object FunctionRegistry {
expression[StringTrimLeft]("ltrim"),
expression[JsonTuple]("json_tuple"),
expression[ParseUrl]("parse_url"),
- expression[StringLocate]("position"),
+ expression[StringLocate]("position", true),
Review comment:
OK. I will open another PR to manually handle the aliases. This PR is used
to add more powerful guarantees so that aliases outputed by built-in functions
are correct.
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