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https://issues.apache.org/jira/browse/SPARK-55994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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L. C. Hsieh reassigned SPARK-55994:
-----------------------------------
Assignee: L. C. Hsieh
> Support CREATE TABLE LIKE for V2
> --------------------------------
>
> Key: SPARK-55994
> URL: https://issues.apache.org/jira/browse/SPARK-55994
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.2.0
> Reporter: L. C. Hsieh
> Assignee: L. C. Hsieh
> Priority: Major
>
> CREATE TABLE LIKE was implemented solely via CreateTableLikeCommand, a
> V1-only command that bypasses the DataSource V2 analysis pipeline entirely.
> As a result, it was impossible to use CREATE TABLE LIKE to create a table in
> a non-session V2 catalog (e.g., testcat.dst): a 2-part name like testcat.dst
> was misinterpreted as database testcat in the session catalog and threw
> NoSuchDatabaseException, while a 3-part name like testcat.ns.dst was a parse
> error because the grammar only accepted 2-part tableIdentifier.
> We should support CREATE TABLE LIKE through the standard V2 DDL pipeline so
> that V2 catalog targets are fully supported, while preserving the existing V1
> behavior when both target and source resolve to the session catalog.
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