[SPARK-54111][CONNECT] Support getCatalogs for SparkConnectDatabaseMetaData #52815
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LuciferYang
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Nov 3, 2025
LuciferYang
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Nov 3, 2025
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### What changes were proposed in this pull request?
Implement `getCatalogs` defined in `java.sql.DatabaseMetaData` for `SparkConnectDatabaseMetaData`.
```java
/**
* Retrieves the catalog names available in this database. The results
* are ordered by catalog name.
*
* <P>The catalog column is:
* <OL>
* <LI><B>TABLE_CAT</B> String {code =>} catalog name
* </OL>
*
* return a {code ResultSet} object in which each row has a
* single {code String} column that is a catalog name
* throws SQLException if a database access error occurs
*/
ResultSet getCatalogs() throws SQLException;
```
### Why are the changes needed?
Enhance API coverage of the Connect JDBC driver, for example, `get[Catalogs|Schemas|Tables|...]` APIs are used by SQL GUI tools such as DBeaver for displaying the tree category.
### Does this PR introduce _any_ user-facing change?
No, the Connect JDBC driver is a new feature under development.
### How was this patch tested?
New UT is added.
### Was this patch authored or co-authored using generative AI tooling?
No.
Closes #52815 from pan3793/SPARK-54111.
Authored-by: Cheng Pan <chengpan@apache.org>
Signed-off-by: yangjie01 <yangjie01@baidu.com>
(cherry picked from commit 2be1eb7)
Signed-off-by: yangjie01 <yangjie01@baidu.com>
|
Merged into master/branch-4.1, thanks @pan3793 |
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What changes were proposed in this pull request?
Implement
getCatalogsdefined injava.sql.DatabaseMetaDataforSparkConnectDatabaseMetaData.Why are the changes needed?
Enhance API coverage of the Connect JDBC driver, for example,
get[Catalogs|Schemas|Tables|...]APIs are used by SQL GUI tools such as DBeaver for displaying the tree category.Does this PR introduce any user-facing change?
No, the Connect JDBC driver is a new feature under development.
How was this patch tested?
New UT is added.
Was this patch authored or co-authored using generative AI tooling?
No.