[
https://issues.apache.org/jira/browse/DERBY-4605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Knut Anders Hatlen closed DERBY-4605.
-------------------------------------
Resolution: Invalid
> Derby Cost Based Optimizer to force the use of index
> ----------------------------------------------------
>
> Key: DERBY-4605
> URL: https://issues.apache.org/jira/browse/DERBY-4605
> Project: Derby
> Issue Type: Task
> Components: Demos/Scripts
> Affects Versions: 10.5.3.0
> Reporter: Mamatha K.V
> Priority: Minor
> Fix For: 10.5.3.0
>
>
> Hello,
> Please help on the syntax of using Cost Based Optimizer that I am using.
> SELECT count (REPOSITORY_KEY) from TIDLRREP --derby-properties index =
> TIILRREP where REPOSITORY_KEY like 'S%';
> Column name- REPOSITORY_KEY
> Table - TIDLRREP
> Index name - TIILRREP
> Also tried using - DERBY-PROPERTIES
> When I through a file using java org.apache.derby.tools.ij C:\mysql.sql >
> C:\GLS\myoutput.txt
> Derby Database Version : db-derby-10.5.3.0-bin
> mysql.sql file contains
> connect 'jdbc:derby:D:\test\PerformanceTest;user=admin;password=password';
> MaximumDisplayWidth 9999;
> CALL SYSCS_UTIL.SYSCS_SET_RUNTIMESTATISTICS(1);
> CALL SYSCS_UTIL.SYSCS_SET_STATISTICS_TIMING(1);
> SELECT count(REPOSITORY_KEY) from TIDLRREP --derby-properties index =
> TIILRREP where REPOSITORY_KEY like 'S%';
> Error output in myoutput.txt
> ij version 10.5
> ij> connect 'jdbc:derby:D:\test\PerformanceTest;user=admin;password=password';
> ij> MaximumDisplayWidth 9999;
> ij> CALL SYSCS_UTIL.SYSCS_SET_RUNTIMESTATISTICS(1);
> 0 rows inserted/updated/deleted
> ij> CALL SYSCS_UTIL.SYSCS_SET_STATISTICS_TIMING(1);
> 0 rows inserted/updated/deleted
> ij> SELECT count(REPOSITORY_KEY) from TIDLRREP --derby-properties index =
> TIILRREP where REPOSITORY_KEY like 'S%';;
> ERROR 42Y46: Invalid Properties list in FROM list. There is no index
> 'TIILRREP WHERE REPOSITORY_KEY LIKE 'S%';' on table 'TIDLRREP'.
> ij>
> Also I have added below entries in my derby.properties file
>
> derby.language.logQueryPlan=true
> derby.optimizer.noTimeout=true
> When I directly the query on ij ... it just hangs!!
> Any help is appreciated.
> Thanks
> Mamatha
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
