RDBPROD: JDBC for Rdb 22.214.171.124 and Rdb Data Provider For .Net 126.96.36.199 Query Performance Bug
(Doc ID 1366052.1)
Last updated on DECEMBER 30, 2019
Applies to:Oracle Rdb Developer Tools for Visual Studio - Version 188.8.131.52 to 184.108.40.206 [Release 7.3]
Oracle JDBC for Rdb - Version 220.127.116.11 to 18.104.22.168 [Release 7.3]
Information in this document applies to any platform.
JDBC for Rdb V22.214.171.124.
A specific query consumes a lot of CPU, causes a lot of stalls, and sometimes stops the JDBC for Rdb thinserver process.
From the JDBC trace file:
The issue is specific to a table with a large number of columns (249 in one case), but more importantly a high number of metadata field versions, i.e. the field definitions have been modified many many times.
The problem query is generated by ORDT 126.96.36.199 but executed on the JDBC server on OpenVMS.
The bug was noticed after upgrading to ORDT 188.8.131.52 and JDBC 184.108.40.206.
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