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https://issues.apache.org/jira/browse/SPARK-58007?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anurag Mantripragada updated SPARK-58007:
-----------------------------------------
Description:
Spark supports a per-statement `WITH (key = value)` options clause on `SELECT`
(SPARK-36680), `INSERT` (SPARK-49098), and `UPDATE` (SPARK-57681) is in
progress. These options are passed to DataSource V2 connectors so a single
statement can tune how the source reads or writes.
`MERGE` does not support this yet. This ticket is to add the `WITH (...)`
clause to `MERGE`, for both the target and the source:
```sql
MERGE INTO target_table WITH (`write.split-size` = 10) AS t
USING source_table WITH (`split-size` = 5) AS s
ON t.id = s.id
WHEN MATCHED THEN UPDATE SET ...
WHEN NOT MATCHED THEN INSERT ...
```
was:
Spark supports a per-statement `WITH (key = value)` options clause on `SELECT`
(SPARK-36680), `INSERT` (SPARK-49098), and `UPDATE` (SPARK-57681). These
options are passed to DataSource V2 connectors so a single statement can tune
how the source reads or writes.
`MERGE` does not support this yet. This ticket adds the `WITH (...)` clause to
`MERGE`, for both the target and the source:
```sql
MERGE INTO target_table WITH (`write.split-size` = 10) AS t
USING source_table WITH (`split-size` = 5) AS s
ON t.id = s.id
WHEN MATCHED THEN UPDATE SET ...
WHEN NOT MATCHED THEN INSERT ...
```
> Support dynamic table options for MERGE
> ---------------------------------------
>
> Key: SPARK-58007
> URL: https://issues.apache.org/jira/browse/SPARK-58007
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 5.0.0
> Reporter: Anurag Mantripragada
> Priority: Major
>
> Spark supports a per-statement `WITH (key = value)` options clause on
> `SELECT` (SPARK-36680), `INSERT` (SPARK-49098), and `UPDATE` (SPARK-57681) is
> in progress. These options are passed to DataSource V2 connectors so a single
> statement can tune how the source reads or writes.
> `MERGE` does not support this yet. This ticket is to add the `WITH (...)`
> clause to `MERGE`, for both the target and the source:
> ```sql
> MERGE INTO target_table WITH (`write.split-size` = 10) AS t
> USING source_table WITH (`split-size` = 5) AS s
> ON t.id = s.id
> WHEN MATCHED THEN UPDATE SET ...
> WHEN NOT MATCHED THEN INSERT ...
> ```
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