Wenchen Fan 59c184e028 [SPARK-17913][SQL] compare atomic and string type column may return confusing result ... ## What changes were proposed in this pull request? Spark SQL follows MySQL to do the implicit type conversion for binary comparison: http://dev.mysql.com/doc/refman/5.7/en/type-conversion.html However, this may return confusing result, e.g. `1 = 'true'` will return true, `19157170390056973L = '19157170390056971'` will return true. I think it's more reasonable to follow postgres in this case, i.e. cast string to the type of the other side, but return null if the string is not castable to keep hive compatibility. ## How was this patch tested? newly added tests. Author: Wenchen Fan <wenchen@databricks.com> Closes #15880 from cloud-fan/compare.		2017-01-24 10:18:25 -08:00
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src	[SPARK-17913][SQL] compare atomic and string type column may return confusing result	2017-01-24 10:18:25 -08:00
pom.xml	[SPARK-17807][CORE] split test-tags into test-JAR	2016-12-21 16:37:20 -08:00