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https://issues.apache.org/jira/browse/FLINK-17067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17079315#comment-17079315
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Timo Walther commented on FLINK-17067:
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A reason for the different semantics might be because, `OR REPLACE` is more
useful in a programming API. But if we don't need to deprecate public API, +1
for consistency.
> CatalogManager#createTable and createTemporaryTable should provide consistent
> semantics
> ---------------------------------------------------------------------------------------
>
> Key: FLINK-17067
> URL: https://issues.apache.org/jira/browse/FLINK-17067
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Affects Versions: 1.10.0
> Reporter: Zhenghua Gao
> Priority: Major
> Fix For: 1.11.0
>
>
> Currently CatalogManager#createTable provides [IF NOT EXISTS] semantic and
> CatalogManager#createTemporaryTable provides [OR REPLACE] semantic. IMO they
> should provide consistent semantics: [IF NOT EXISTS] or [OR REPLACE].
> I prefer [IF NOT EXISTS] since we didn't support [OR REPLACE] in table
> DDL(and view DDL) currently.
>
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