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https://issues.apache.org/jira/browse/CASSANDRA-10411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14935187#comment-14935187
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Sylvain Lebresne commented on CASSANDRA-10411:
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That is certainly something we can support but it's not a huge priority either
so feel free to summit a patch if that's an itch you want scratched in a timely
fashion.
> Add/drop multiple columns in one ALTER TABLE statement
> ------------------------------------------------------
>
> Key: CASSANDRA-10411
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10411
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Bryn Cooke
> Priority: Minor
>
> Currently it is only possible to add one column at a time in an alter table
> statement. It would be great if we could add multiple columns at a time.
> The primary reason for this is that adding each column individually seems to
> take a significant amount of time (at least on my development machine), I
> know all the columns I want to add, but don't know them until after the
> initial table is created.
> As a secondary consideration it brings CQL slightly closer to SQL where most
> databases can handle adding multiple columns in one statement.
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