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Vertica: JDBC Driver does not support FETCH NEXT, only LIMIT #2802

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Deklin opened this issue May 10, 2023 · 0 comments
Open

Vertica: JDBC Driver does not support FETCH NEXT, only LIMIT #2802

Deklin opened this issue May 10, 2023 · 0 comments

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@Deklin
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Deklin commented May 10, 2023

Describe the bug
When connecting a RDBMS datasource that is based on Vertica, Drill attempts to use the FETCH NEXT approach for query optimization, however vertica JDBC doesn't support FETCH NEXT but only supports limit.
https://docs.vertica.com/12.0.x/en/sql-reference/statements/select/limit-clause/

To Reproduce
Steps to reproduce the behavior:

  1. Connect a Vertica based RDBMS Datasource
  2. Once successful, validate with SHOW SCHEMAS;
  3. Attempt to run a query against one of the vertica tables
  4. Observe the error

Expected behavior
Results should appear properly and not use fetch next

Error detail, log output or screenshots
org.apache.drill.common.exceptions.UserRemoteException: DATA_READ ERROR: The JDBC storage plugin failed while trying setup the SQL query.

Sql: SELECT *
FROM "VerticaDB"."xxxxxxxxx"."yyyyyyyyy"
FETCH NEXT 1000 ROWS ONLY
Fragment: 0:0

[Error Id: d142a3d5-f5b3-4f9c-b850-a39e72604953 on a68ba75bf84a:31010]

SQL LOG:

Caused by: java.sql.SQLSyntaxErrorException: [Vertica]VJDBC ERROR: Syntax error at or near "NEXT" at character 59
at com.vertica.util.ServerErrorData.buildException()
at com.vertica.io.ProtocolStream.readExpectedMessage()
at com.vertica.dataengine.VDataEngine.prepareImpl()
at com.vertica.dataengine.VDataEngine.prepare()

Drill version
1.21.1

Additional context

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