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https://issues.apache.org/jira/browse/HIVE-1082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12804744#action_12804744
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Ning Zhang commented on HIVE-1082:
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@venky, I am a little bit confused about the requirement. Do you mean we should
allow the following situation: Table T(a int, b string) and table T (a int, b
string, c string) exist in the same database? If so, what is the semantics of
'select a, b from T;'?
> "create table if not exists " should check if the specified schema matches
> the existing schema, and throw an error if it doesnt.
> -----------------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-1082
> URL: https://issues.apache.org/jira/browse/HIVE-1082
> Project: Hadoop Hive
> Issue Type: Bug
> Reporter: Venky Iyer
>
> I think we should make sure that the table can either be created anew with
> the specified properties, or it already exists with those properties, where
> 'properties' includes all metadata except timestamps. Anything else is an
> error. This makes sense if you think of a table as the name + its schema,
> instead of the name alone.
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