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https://issues.apache.org/jira/browse/SPARK-44886?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Terry Kim updated SPARK-44886:
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Description:
This proposes to introduce CLUSTER BY clause to CREATE/REPLACE SQL syntax:
{code:java}
CREATE TABLE tbl(a int, b string) CLUSTER BY (a, b){code}
This doesn't introduce a default implementation for clustering, but it's up to
the catalog/datasource implementation to utilize the clustering information
(e.g., Delta, Iceberg, etc.).
was:
This proposes to introduce CLUSTER BY clause to CREATE/REPLACE SQL syntax:
{code:java}
CREATE TABLE tbl(a int, b string) CLUSTER BY (a, b){code}
There will not be an implementation, but it's up to the catalog implementation
to utilize the clustering information (e.g., Delta, Iceberg, etc.).
Note that specifying CLUSTER BY will throw an exception if the table being
created is for v1 source or session catalog (e.g., v2 source w/ session
catalog).
> Introduce CLUSTER BY SQL clause to CREATE/REPLACE TABLE
> -------------------------------------------------------
>
> Key: SPARK-44886
> URL: https://issues.apache.org/jira/browse/SPARK-44886
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Terry Kim
> Priority: Major
>
> This proposes to introduce CLUSTER BY clause to CREATE/REPLACE SQL syntax:
> {code:java}
> CREATE TABLE tbl(a int, b string) CLUSTER BY (a, b){code}
> This doesn't introduce a default implementation for clustering, but it's up
> to the catalog/datasource implementation to utilize the clustering
> information (e.g., Delta, Iceberg, etc.).
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