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From "Junjie Peng (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-3831) RuntimeStatisticsParser can not distinguish names of table or index well and truly
Date Mon, 11 Aug 2008 14:31:46 GMT
RuntimeStatisticsParser can not distinguish names of table or index well and truly
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                 Key: DERBY-3831
                 URL: https://issues.apache.org/jira/browse/DERBY-3831
             Project: Derby
          Issue Type: Bug
          Components: Tools
            Reporter: Junjie Peng
            Assignee: Junjie Peng


RuntimeStatisticsParser can not distinguish names of table or index well and truly.

i.e. there are two indexes t1_c1c2 and t1_c1 on table t1. Execute "select * from t1 --DeRbY-pRoPeRtIeS
index = t1_c1c2"  on t1. Then,RuntimeStatisticsParser.usedSpecificIndexForIndexScan("T1","T1_C1C2")
will return true, while RuntimeStatisticsParser.usedSpecificIndexForIndexScan("T1","T1_C1")
will return true too. It's not correct.

The similar errors also exist on usedIndexScan(), usedIndexRowToBaseRow(), usedDistinctScan()
and usedTableScan() in the class of  RuntimeStatisticsParser.

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