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Song Jun edited comment on SPARK-19496 at 2/8/17 7:11 AM: ---------------------------------------------------------- mysql: select str_to_date('2014-12-31','%Y-%d-%m') also return null that is mysql both return null when the date is invalidate or the formate is invalidate. and hive will transform the invalidate date to valid, e.g 2014-31-12 -> 31/12 = 2 -> 2014+2=2016 , 31 - 12*2=7 -> 2016-07-12 was (Author: windpiger): mysql: select str_to_date('2014-12-31','%Y-%d-%m') also return null mysql both return null when the date is invalidate or the formate is invalidate > to_date with format has weird behavior > -------------------------------------- > > Key: SPARK-19496 > URL: https://issues.apache.org/jira/browse/SPARK-19496 > Project: Spark > Issue Type: Bug > Components: SQL > Affects Versions: 2.1.0 > Reporter: Wenchen Fan > > Today, if we run > {code} > SELECT to_date('2015-07-22', 'yyyy-dd-MM') > {code} > will result to `2016-10-07`, while running > {code} > SELECT to_date('2014-31-12') # default format > {code} > will return null. > this behavior is weird and we should check other systems like hive to see if > this is expected. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org