viirya commented on a change in pull request #34038:
URL: https://github.com/apache/spark/pull/34038#discussion_r715745567
##########
File path:
sql/core/src/test/resources/sql-tests/results/postgreSQL/union.sql.out
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@@ -684,8 +684,8 @@ SELECT cast('3.4' as decimal(38, 18)) UNION SELECT 'foo'
-- !query schema
struct<>
-- !query output
-org.apache.spark.SparkException
-Failed to merge incompatible data types decimal(38,18) and string
+org.apache.spark.sql.AnalysisException
+Union can only be performed on tables with the compatible column types. string
<> decimal(38,18) at the first column of the second table
Review comment:
Ha, this comes from `CheckAnalysis`'s original error message. We can
improve it, although there are some more tests relying on the error message.
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