SQLChar.getCollationKey NPE in index-stat-thread
------------------------------------------------
Key: DERBY-5530
URL: https://issues.apache.org/jira/browse/DERBY-5530
Project: Derby
Issue Type: Bug
Affects Versions: 10.8.2.2
Environment: Windows 7 - NetBeans 6.9.1
Reporter: Jean-Yves LINET
With this JDBC connection url is :
jdbc:derby:directory:db_name;territory=fr_FR;collation=TERRITORY_BASED:PRIMARY;create=true
I get a NullPointerException in index-stat-thread
Sun Dec 11 19:33:11 CET 2011 Thread[pool-3-thread-1,5,main] {istat}
"PROXIFLEX"."IDAXX_RES": update scheduled, reason=[no stats, row-estimate=375]
(queueSize=1)
Sun Dec 11 19:33:11 CET 2011 Thread[index-stat-thread,5,main]
{istat,trace@26130360} worker thread started (xid=12049)
[q/p/s=1/0/1,err:k/u/c=0/0/0,rej:f/d/o=0/0/0]
Sun Dec 11 19:33:11 CET 2011 Thread[index-stat-thread,5,main]
{istat,trace@26130360} processing "PROXIFLEX"."IDAXX_RES"
Sun Dec 11 19:33:11 CET 2011 Thread[index-stat-thread,5,main] {istat} runtime
exception during normal operation
java.lang.NullPointerException
at org.apache.derby.iapi.types.SQLChar.getCollationKey(Unknown Source)
at
org.apache.derby.iapi.types.WorkHorseForCollatorDatatypes.stringCompare(Unknown
Source)
at org.apache.derby.iapi.types.CollatorSQLVarchar.stringCompare(Unknown
Source)
at org.apache.derby.iapi.types.SQLChar.compare(Unknown Source)
at
org.apache.derby.impl.services.daemon.IndexStatisticsDaemonImpl$KeyComparator.compareWithPrevKey(Unknown
Source)
at
org.apache.derby.impl.services.daemon.IndexStatisticsDaemonImpl.updateIndexStatsMinion(Unknown
Source)
at
org.apache.derby.impl.services.daemon.IndexStatisticsDaemonImpl.generateStatistics(Unknown
Source)
at
org.apache.derby.impl.services.daemon.IndexStatisticsDaemonImpl.processingLoop(Unknown
Source)
at
org.apache.derby.impl.services.daemon.IndexStatisticsDaemonImpl.run(Unknown
Source)
at java.lang.Thread.run(Thread.java:662)
Sun Dec 11 19:33:11 CET 2011 Thread[index-stat-thread,5,main]
{istat,trace@26130360} worker thread exit
[q/p/s=0/0/1,err:k/u/c=0/0/0,rej:f/d/o=0/0/0]
If I remove territory and collation parameters I don't have the exception.
In case you want to disable automatic statistics, set derby property :
derby.storage.indexStats.auto to false.
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