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Posted to issues@spark.apache.org by "wangminfeng (JIRA)" <ji...@apache.org> on 2018/01/10 11:57:00 UTC

[jira] [Created] (SPARK-23027) optimizer a simple query

wangminfeng created SPARK-23027:
-----------------------------------

             Summary: optimizer a simple query
                 Key: SPARK-23027
                 URL: https://issues.apache.org/jira/browse/SPARK-23027
             Project: Spark
          Issue Type: Bug
          Components: Optimizer
    Affects Versions: 2.0.1
            Reporter: wangminfeng


When i use spark sql to do ad-hoc query, i have data partitioned by event_day, event_minute, event_hour, data is large enough，one day data is about 3T， we saved 3 month data.
But when query use a non-existent day， get optimizedPlan is too slow.
i use “sparkSession.sessionState.executePlan(logicalPlan).optimizedPlan” get optimized plan， for five minutes，i can not get it. Query is simple enough, like:
SELECT
event_day
FROM db.table t1
WHERE (t1.event_day='20170104' and t1.event_hour='23' and t1.event_minute='55')
LIMIT 1



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