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https://issues.apache.org/jira/browse/HIVE-23128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17077420#comment-17077420
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Miklos Gergely commented on HIVE-23128:
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+1
> 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,
> HIVE-23128.2.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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