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https://issues.apache.org/jira/browse/IGNITE-19644?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yury Gerzhedovich updated IGNITE-19644:
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Summary: Drop 'COLUMN IF (NOT) EXISTS' syntax support. (was: Drop 'COLUMN
IF (NOT) EXISTS' syntax sypport.)
> Drop 'COLUMN IF (NOT) EXISTS' syntax support.
> ---------------------------------------------
>
> Key: IGNITE-19644
> URL: https://issues.apache.org/jira/browse/IGNITE-19644
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Reporter: Andrey Mashenkov
> Priority: Major
> Labels: ignite-3, tech-debt
>
> Let's drop supporting ambiguous "COLUMN IF (NOT) EXISTS" syntax.
> Motivation.
> "IF EXISTS/IF NOT EXISTS" clause is not a part of SQL standard.
> It usage looks ambiguous when statement contains multiple actions for
> adding/dropping multiple columns. Multiple actions support is desirable due
> to performance reasons.
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