Github user dongjoon-hyun commented on a diff in the pull request: https://github.com/apache/spark/pull/22788#discussion_r227093538 --- Diff: sql/core/src/test/resources/sql-tests/results/columnresolution-negative.sql.out --- @@ -81,7 +81,7 @@ SELECT t1.i1 FROM t1, mydb1.t1 struct<> -- !query 9 output org.apache.spark.sql.AnalysisException -Reference 't1.i1' is ambiguous, could be: mydb1.t1.i1, mydb1.t1.i1.; line 1 pos 7 +Reference '`t1`.`i1`' is ambiguous, could be: mydb1.t1.i1, mydb1.t1.i1.; line 1 pos 7 --- End diff -- I thought some examples in [the above](https://github.com/apache/spark/pull/22788#pullrequestreview-166797320).
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