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new 2f8c8d4 [SPARK-26545] Fix typo in EqualNullSafe's truth table comment
2f8c8d4 is described below
commit 2f8c8d41f1dc9a5008828aa26bb964bb47fe06c6
Author: Kris Mok <kris....@databricks.com>
AuthorDate: Sat Jan 5 14:37:04 2019 -0800
[SPARK-26545] Fix typo in EqualNullSafe's truth table comment
## What changes were proposed in this pull request?
The truth table comment in EqualNullSafe incorrectly marked FALSE results
as UNKNOWN.
## How was this patch tested?
N/A
Closes #23461 from rednaxelafx/fix-typo.
Authored-by: Kris Mok <kris....@databricks.com>
Signed-off-by: gatorsmile <gatorsm...@gmail.com>
(cherry picked from commit 4ab5b5b9185f60f671d90d94732d0d784afa5f84)
Signed-off-by: gatorsmile <gatorsm...@gmail.com>
---
.../org/apache/spark/sql/catalyst/expressions/predicates.scala | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git
a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/predicates.scala
b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/predicates.scala
index ffc07d9..e4a1154 100644
---
a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/predicates.scala
+++
b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/predicates.scala
@@ -649,9 +649,9 @@ case class EqualNullSafe(left: Expression, right:
Expression) extends BinaryComp
// +---------+---------+---------+---------+
// | <=> | TRUE | FALSE | UNKNOWN |
// +---------+---------+---------+---------+
- // | TRUE | TRUE | FALSE | UNKNOWN |
- // | FALSE | FALSE | TRUE | UNKNOWN |
- // | UNKNOWN | UNKNOWN | UNKNOWN | TRUE |
+ // | TRUE | TRUE | FALSE | FALSE |
+ // | FALSE | FALSE | TRUE | FALSE |
+ // | UNKNOWN | FALSE | FALSE | TRUE |
// +---------+---------+---------+---------+
override def eval(input: InternalRow): Any = {
val input1 = left.eval(input)
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