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https://issues.apache.org/jira/browse/SPARK-17732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15623707#comment-15623707
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Apache Spark commented on SPARK-17732:
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User 'dongjoon-hyun' has created a pull request for this issue:
https://github.com/apache/spark/pull/15704
> ALTER TABLE DROP PARTITION should support comparators
> -----------------------------------------------------
>
> Key: SPARK-17732
> URL: https://issues.apache.org/jira/browse/SPARK-17732
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Dongjoon Hyun
>
> This issue aims to support `comparators`, e.g. '<', '<=', '>', '>=', again in
> Apache Spark 2.0 for backward compatibility.
> *Spark 1.6.2*
> {code}
> scala> sql("CREATE TABLE sales(id INT) PARTITIONED BY (country STRING,
> quarter STRING)")
> res0: org.apache.spark.sql.DataFrame = [result: string]
> scala> sql("ALTER TABLE sales DROP PARTITION (country < 'KR')")
> res1: org.apache.spark.sql.DataFrame = [result: string]
> {code}
> *Spark 2.0*
> {code}
> scala> sql("CREATE TABLE sales(id INT) PARTITIONED BY (country STRING,
> quarter STRING)")
> res0: org.apache.spark.sql.DataFrame = []
> scala> sql("ALTER TABLE sales DROP PARTITION (country < 'KR')")
> org.apache.spark.sql.catalyst.parser.ParseException:
> mismatched input '<' expecting {')', ','}(line 1, pos 42)
> {code}
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