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Posted to issues@flink.apache.org by "silence (Jira)" <ji...@apache.org> on 2020/08/05 08:26:00 UTC
[jira] [Commented] (FLINK-18726) Support INSERT INTO specific
columns
[ https://issues.apache.org/jira/browse/FLINK-18726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17171339#comment-17171339 ]
silence commented on FLINK-18726:
---------------------------------
Do we have a plan to support this?
> Support INSERT INTO specific columns
> ------------------------------------
>
> Key: FLINK-18726
> URL: https://issues.apache.org/jira/browse/FLINK-18726
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Planner
> Reporter: Caizhi Weng
> Priority: Major
>
> Currently Flink only supports insert into a table without specifying columns, but most database systems support insert into specific columns by
> {code:sql}
> INSERT INTO table_name(column1, column2, ...) ...
> {code}
> The columns not specified will be filled with default values or {{NULL}} if no default value is given when creating the table.
> As Flink currently does not support default values when creating tables, we can fill the unspecified columns with {{NULL}} and throw exceptions if there are columns with {{NOT NULL}} constraints.
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