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https://issues.apache.org/jira/browse/HIVE-13556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15491279#comment-15491279
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Zoltan Haindrich commented on HIVE-13556:
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Sorry for the broken link - i think I've also noticed it; but I might have
failed to save my changes...
I think PRECISION in its current form, is a fully reserved keyword - and
FOREIGN and its friends too
The fully reserved keywords are those which are in
https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/parse/HiveLexer.g
if there are just a few which are missing I think we should regenerate the
whole list with something like:
{code}
grep '^KW' ql/src/java/org/apache/hadoop/hive/ql/parse/HiveLexer.g |cut -d "'"
-f2|sort|tr '\n' ','
{code}
AFAIK the non-reserved keywords are those which are implemented as UDFs.
but in this topic I think [~pxiong] is a more reliable source than me...
> Support for double precision data type
> --------------------------------------
>
> Key: HIVE-13556
> URL: https://issues.apache.org/jira/browse/HIVE-13556
> Project: Hive
> Issue Type: Sub-task
> Components: Types
> Reporter: Ashutosh Chauhan
> Assignee: Zoltan Haindrich
> Labels: TODOC2.2
> Fix For: 2.2.0
>
> Attachments: HIVE-13554.1.patch, HIVE-13556.2.patch
>
>
> Add support for {{DOUBLE PRECISION}} data type as an alias for {{DOUBLE}}
> datatype
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