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From "David Mollitor (Jira)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-23128) SHOW CREATE TABLE Creates Incorrect Syntax When Database Specified
Date Fri, 03 Apr 2020 13:50:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-23128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

David Mollitor updated HIVE-23128:
----------------------------------
    Target Version/s: 4.0.0

> SHOW CREATE TABLE Creates Incorrect Syntax When Database Specified
> ------------------------------------------------------------------
>
>                 Key: HIVE-23128
>                 URL: https://issues.apache.org/jira/browse/HIVE-23128
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 2.4.0, 3.1.2
>            Reporter: David Mollitor
>            Assignee: David Mollitor
>            Priority: Major
>         Attachments: HIVE-23128.1.patch, HIVE-23128.2.patch
>
>
> {code:sql}
> show create table `sample_07`;
> show create table `default`.`sample_07`;
> show create table `default.sample_07`;
> {code}
> {code:none|title=Results}
> CREATE TABLE `sample_07`(...)
> CREATE TABLE `default.sample_07`(...)
> CREATE TABLE `default.sample_07`(...);
> {code}
> All three {{show create table}} statements complete in Hive 2.x and 3.x and generate
{{CREATE TABLE}} statements as show above. The first result is correct because it does not
include the database name, however, the subsequent two results are invalid: each field must
be quoted individually.  This causes a failure in recent versions of Hive because "SemanticException
Table or database name may not contain dot(.) character."
> {quote}If any components of a multiple-part name require quoting, quote them individually
rather than quoting the name as a whole. For example, write `my-table`.`my-column`, not `my-table.my-column`.
>  * [https://dev.mysql.com/doc/refman/8.0/en/identifier-qualifiers.html]{quote}



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