beliefer commented on a change in pull request #27058: [SPARK-30395][SQL] When
one or more DISTINCT aggregate expressions operate on the same field, the
DISTINCT aggregate expression allows the use of the FILTER clause
URL: https://github.com/apache/spark/pull/27058#discussion_r364545988
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisErrorSuite.scala
##########
@@ -192,8 +192,10 @@ class AnalysisErrorSuite extends AnalysisTest {
errorTest(
"DISTINCT and FILTER cannot be used in aggregate functions at the same
time",
- CatalystSqlParser.parsePlan("SELECT count(DISTINCT a) FILTER (WHERE c > 1)
FROM TaBlE2"),
- "DISTINCT and FILTER cannot be used in aggregate functions at the same
time" :: Nil)
+ CatalystSqlParser.parsePlan("SELECT sum(DISTINCT b), " +
+ "count(DISTINCT a) FILTER (WHERE c > 1) FROM TaBlE2"),
+ "When there are multiple DISTINCT aggregate expressions acting on
different " +
+ "fields, any DISTINCT aggregate expression not allow use FILTER clause."
:: Nil)
Review comment:
OK. I will add tests in group-by-filter.sql
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