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https://issues.apache.org/jira/browse/SPARK-20964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17028233#comment-17028233
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Dongjoon Hyun commented on SPARK-20964:
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Hi, [~maropu]. I removed the target version first. Please resolve this if this
is done in 3.0.0.
> Make some keywords reserved along with the ANSI/SQL standard
> ------------------------------------------------------------
>
> Key: SPARK-20964
> URL: https://issues.apache.org/jira/browse/SPARK-20964
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.1.1
> Reporter: Takeshi Yamamuro
> Priority: Minor
>
> The current Spark has many non-reserved words that are essentially reserved
> in the ANSI/SQL standard
> (http://developer.mimer.se/validator/sql-reserved-words.tml).
> https://github.com/apache/spark/blob/master/sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4#L709
> This is because there are many datasources (for instance twitter4j) that
> unfortunately use reserved keywords for column names (See [~hvanhovell]'s
> comments: https://github.com/apache/spark/pull/18079#discussion_r118842186).
> We might fix this issue in future major releases.
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