Pavel Pereslegin created IGNITE-26145:
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Summary: Sql. Jdbc. Complete migration to thin client SQL API.
Code cleanup.
Key: IGNITE-26145
URL: https://issues.apache.org/jira/browse/IGNITE-26145
Project: Ignite
Issue Type: New Feature
Components: jdbc ai3, sql ai3
Reporter: Pavel Pereslegin
At this point in time, all JDBC operations should be switched to using thin
client SQL API and we need to cleanup unused JDBC driver code.
Note: server code should not be removed because old JDBC driver should be able
to work with the new server.
Some notes:
Need to remove unused java.sql.ResultSet implementation.
Figure out how to best cleanup code from JdbcClientQueryEventHandler.
Currently we have two implementations of JdbcQueryEventHandler.
JdbcQueryEventHandlerImpl is used on the server side and cannot be changed.
But JdbcClientQueryEventHandler used on the client side and the methods not
related to metadata
* connect
* queryAsync
* batchAsync
* batchPrepStatementAsync
* finishTxAsync
* cancelAsync
are not used and must be dropped from it.
Suggestion:
introduce JdbcMetadataHandler, (with client and server implementations). Move
there all metadata methods.
Drop JdbcQueryEventHandler. JdbcClientQueryEventHandler and keep only server
side JdbcQueryEventHandlerImpl with obsolete methods.
Probably we can rename JdbcQueryEventHandler into JdbcMetadataHandler, remove
unused methods, and extract JdbcQueryEventHandlerImpl
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