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https://issues.apache.org/jira/browse/HIVE-28587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltán Rátkai updated HIVE-28587:
---------------------------------
Description:
h3. Add support for:
Iceberg tables can be configured with a sort order that is used to
automatically sort data that is written to the table in some engines. For
example, {{MERGE INTO}} in Spark will use the table ordering.
Iceberg tables can be configured with a sort order that is used to
automatically sort data that is written to the table in some engines. For
example, {{MERGE INTO}} in Spark will use the table ordering.
To set the write order for a table, use {{{}WRITE ORDERED BY{}}}:
ALTER TABLE prod.db.sample WRITE ORDERED BY category, id
-- use optional ASC/DEC keyword to specify sort order of each field (default
ASC)}}
ALTER TABLE prod.db.sample WRITE ORDERED BY category ASC, id
--use optional NULLS FIRST/NULLS LAST keyword to specify null order of each
field (default FIRST)}}
ALTER TABLE prod.db.sample WRITE ORDERED BY category ASC NULLS LAST, id DESC
NULLS FIRST
Align the syntax based on compatibility.
was:
h3. Add support for:
Iceberg tables can be configured with a sort order that is used to
automatically sort data that is written to the table in some engines. For
example, {{MERGE INTO}} in Spark will use the table ordering.
{{}}
Iceberg tables can be configured with a sort order that is used to
automatically sort data that is written to the table in some engines. For
example, {{MERGE INTO}} in Spark will use the table ordering.
{{}}
To set the write order for a table, use {{{}WRITE ORDERED BY{}}}:
ALTER TABLE prod.db.sample WRITE ORDERED BY category, id
- use optional ASC/DEC keyword to specify sort order of each field (default
ASC)}}
ALTER TABLE prod.db.sample WRITE ORDERED BY category ASC, id
- use optional NULLS FIRST/NULLS LAST keyword to specify null order of each
field (default FIRST)}}
ALTER TABLE prod.db.sample WRITE ORDERED BY category ASC NULLS LAST, id DESC
NULLS FIRST
{{}}
Align the syntax based on compatibility.
{{}}
> Support write order for Iceberg tables at ALTER TABLE
> -----------------------------------------------------
>
> Key: HIVE-28587
> URL: https://issues.apache.org/jira/browse/HIVE-28587
> Project: Hive
> Issue Type: Improvement
> Security Level: Public(Viewable by anyone)
> Components: Hive
> Reporter: Zoltán Rátkai
> Assignee: Zoltán Rátkai
> Priority: Major
>
> h3. Add support for:
> Iceberg tables can be configured with a sort order that is used to
> automatically sort data that is written to the table in some engines. For
> example, {{MERGE INTO}} in Spark will use the table ordering.
> Iceberg tables can be configured with a sort order that is used to
> automatically sort data that is written to the table in some engines. For
> example, {{MERGE INTO}} in Spark will use the table ordering.
> To set the write order for a table, use {{{}WRITE ORDERED BY{}}}:
>
> ALTER TABLE prod.db.sample WRITE ORDERED BY category, id
> -- use optional ASC/DEC keyword to specify sort order of each field (default
> ASC)}}
> ALTER TABLE prod.db.sample WRITE ORDERED BY category ASC, id
> --use optional NULLS FIRST/NULLS LAST keyword to specify null order of each
> field (default FIRST)}}
> ALTER TABLE prod.db.sample WRITE ORDERED BY category ASC NULLS LAST, id DESC
> NULLS FIRST
>
> Align the syntax based on compatibility.
>
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