cloud-fan commented on a change in pull request #23266: [SPARK-26313][SQL] move
`newScanBuilder` from Table to read related mix-in traits
URL: https://github.com/apache/spark/pull/23266#discussion_r241236966
##########
File path:
sql/core/src/main/java/org/apache/spark/sql/sources/v2/SupportsBatchRead.java
##########
@@ -24,10 +24,10 @@
/**
* An empty mix-in interface for {@link Table}, to indicate this table
supports batch scan.
* <p>
- * If a {@link Table} implements this interface, its {@link
Table#newScanBuilder(DataSourceOptions)}
- * must return a {@link ScanBuilder} that builds {@link Scan} with {@link
Scan#toBatch()}
- * implemented.
+ * If a {@link Table} implements this interface, the
+ * {@link SupportsRead#newScanBuilder(DataSourceOptions)} must return a {@link
ScanBuilder} that
+ * builds {@link Scan} with {@link Scan#toBatch()} implemented.
* </p>
*/
@Evolving
-public interface SupportsBatchRead extends Table { }
+public interface SupportsBatchRead extends SupportsRead { }
Review comment:
`SupportsRead` only makes sense under the table context. It also simplifies
the code
```
public interface SupportsBatchRead extends Table, SupportsRead { }
public interface SupportsMicroBatchRead extends Table, SupportsRead { }
public interface SupportsContinuousRead extends Table, SupportsRead { }
```
to
```
public interface SupportsBatchRead extends SupportsRead { }
public interface SupportsMicroBatchRead extends SupportsRead { }
public interface SupportsContinuousRead extends SupportsRead { }
```
BTW `SupportsRead` is package private.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
