Github user jiangxb1987 commented on a diff in the pull request:
https://github.com/apache/spark/pull/18020#discussion_r117117037
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/InferFiltersFromConstraintsSuite.scala
---
@@ -172,30 +173,27 @@ class InferFiltersFromConstraintsSuite extends
PlanTest {
val t1 = testRelation.subquery('t1)
val t2 = testRelation.subquery('t2)
- val originalQuery = t1.select('a, 'b.as('d), Coalesce(Seq('a,
'b)).as('int_col)).as("t")
+ val originalQuery = t1.select('a, 'b.as('d), Coalesce(Seq('a,
'b)).as('int_col))
--- End diff --
Then they would look much the same... The modified test case also covers
the original situation, so I think it may be okay to not add new test cases.
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