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Date: Thu, 9 Dec 2010 14:22:09 -0500 (EST)
From: "Mamta A. Satoor (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Updated: (DERBY-4874) Trigger does not recognize new size of
 VARCHAR column  expanded with ALTER TABLE. It fails with ERROR 22001: A
 truncation error was encountered trying to shrink VARCHAR
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     [ https://issues.apache.org/jira/browse/DERBY-4874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mamta A. Satoor updated DERBY-4874:
-----------------------------------

    Fix Version/s: 10.8.0.0

> Trigger does not recognize new size of VARCHAR column  expanded with ALTER TABLE. It fails with ERROR 22001: A truncation error was encountered trying to shrink VARCHAR 
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4874
>                 URL: https://issues.apache.org/jira/browse/DERBY-4874
>             Project: Derby
>          Issue Type: Bug
>    Affects Versions: 10.2.2.1, 10.3.3.1, 10.4.2.1, 10.5.3.0, 10.6.2.1, 10.7.1.1
>            Reporter: Kathey Marsden
>            Assignee: Mamta A. Satoor
>             Fix For: 10.8.0.0
>
>         Attachments: DERBY4874_comments_and_test_missing_diff_ver3.txt, DERBY4874_comments_and_test_missing_stat_ver3.txt, DERBY4874_not_ready_for_commit_diff.txt, DERBY4874_not_ready_for_commit_diff_ver2.txt, DERBY4874_not_ready_for_commit_stat.txt, DERBY4874_not_ready_for_commit_stat_ver2.txt, trigAlterColumn.sql
>
>
> Trigger created before VARCHAR column is expanded with ALTER TABLE does not recognize new size and fails with:
> ERROR 22001: A truncation error was encountered trying to shrink VARCHAR '012345
> 678901234567890123456789001234567890' to length 30.
> CREATE TABLE tab (
>        element_id         INTEGER NOT NULL,
>        altered_id         VARCHAR(30) NOT NULL,
>        counter            SMALLINT NOT NULL DEFAULT 0,
>        timets            TIMESTAMP NOT NULL
> );
> 0 rows inserted/updated/deleted
> ij> -- Create a trigger against the table
> CREATE TRIGGER mytrig
>  AFTER UPDATE ON tab
>  REFERENCING NEW AS newt OLD AS oldt
>  FOR EACH ROW MODE DB2SQL
>   UPDATE tab set tab.counter = CASE WHEN (oldt.counter < 32767) THEN (oldt.count
> er + 1) ELSE 1 END
>   WHERE ((newt.counter is null) or (oldt.counter = newt.counter))
>   AND newt.element_id = tab.element_id
>   AND newt.altered_id = tab.altered_id;
> 0 rows inserted/updated/deleted
> ij> -- Alter the table to increase column
> ALTER TABLE tab ALTER altered_id SET DATA TYPE VARCHAR(64);
> 0 rows inserted/updated/deleted
> ij> -- insert the data
> insert into tab values (99, '012345678901234567890123456789001234567890',1,CURRE
> NT_TIMESTAMP);
> 1 row inserted/updated/deleted
> ij> -- update and reproduce the issue
> update tab set timets = CURRENT_TIMESTAMP where ELEMENT_ID = 99;
> ERROR 22001: A truncation error was encountered trying to shrink VARCHAR '012345
> 678901234567890123456789001234567890' to length 30.
> java.sql.SQLDataException: A truncation error was encountered trying to shrink V
> ARCHAR '012345678901234567890123456789001234567890' to length 30.
>         at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLE
> xceptionFactory40.java:79)
>         at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Util.java:256)
>         at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException
> (TransactionResourceImpl.java:391)
>         at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Tr
> ansactionResourceImpl.java:346)
>         at org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConne
> ction.java:2269)
>         at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Connection
> Child.java:81)
>         at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedState
> ment.java:1321)
>         at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java
> :625)
>         at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java
> :555)
>         at org.apache.derby.impl.tools.ij.ij.executeImmediate(ij.java:367)
>         at org.apache.derby.impl.tools.ij.utilMain.doCatch(utilMain.java:521)
>         at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:3
> 63)
>         at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:261)
>         at org.apache.derby.impl.tools.ij.Main.go(Main.java:229)
>         at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:184)
>         at org.apache.derby.impl.tools.ij.Main.main(Main.java:75)
>         at org.apache.derby.tools.ij.main(ij.java:59)
> Caused by: java.sql.SQLException: A truncation error was encountered trying to s
> hrink VARCHAR '012345678901234567890123456789001234567890' to length 30.
>         at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExc
> eptionFactory.java:45)
>         at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransport
> AcrossDRDA(SQLExceptionFactory40.java:119)
>         at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLE
> xceptionFactory40.java:70)
>         ... 16 more
> Caused by: ERROR 22001: A truncation error was encountered trying to shrink VARC
> HAR '012345678901234567890123456789001234567890' to length 30.
>         at org.apache.derby.iapi.error.StandardException.newException(StandardEx
> ception.java:343)
>         at org.apache.derby.iapi.types.SQLChar.hasNonBlankChars(SQLChar.java:176
> 6)
>         at org.apache.derby.iapi.types.SQLChar.setWidth(SQLChar.java:1840)
>         at org.apache.derby.exe.ac0b5b0099x012bxf542xab11x0000001bd2983.e2(Unkno
> wn Source)
>         at org.apache.derby.impl.services.reflect.DirectCall.invoke(ReflectGener
> atedClass.java:143)
>         at org.apache.derby.impl.sql.execute.GenericQualifier.getOrderable(Gener
> icQualifier.java:96)
>         at org.apache.derby.impl.sql.execute.NoPutResultSetImpl.clearOrderableCa
> che(NoPutResultSetImpl.java:313)
>         at org.apache.derby.impl.sql.execute.TableScanResultSet.openScanControll
> er(TableScanResultSet.java:350)
>         at org.apache.derby.impl.sql.execute.TableScanResultSet.openCore(TableSc
> anResultSet.java:262)
>         at org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.openCore(P
> rojectRestrictResultSet.java:174)
>         at org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.openCore(P
> rojectRestrictResultSet.java:174)
>         at org.apache.derby.impl.sql.execute.NormalizeResultSet.openCore(Normali
> zeResultSet.java:146)
>         at org.apache.derby.impl.sql.execute.UpdateResultSet.setup(UpdateResultS
> et.java:344)
>         at org.apache.derby.impl.sql.execute.UpdateResultSet.open(UpdateResultSe
> t.java:263)
>         at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(Generi
> cPreparedStatement.java:436)
>         at org.apache.derby.impl.sql.GenericPreparedStatement.executeSubStatemen
> t(GenericPreparedStatement.java:306)
>         at org.apache.derby.impl.sql.execute.GenericTriggerExecutor.executeSPS(G
> enericTriggerExecutor.java:173)
>         at org.apache.derby.impl.sql.execute.RowTriggerExecutor.fireTrigger(RowT
> riggerExecutor.java:111)
>         at org.apache.derby.impl.sql.execute.TriggerEventActivator.notifyEvent(T
> riggerEventActivator.java:278)
>         at org.apache.derby.impl.sql.execute.UpdateResultSet.fireAfterTriggers(U
> pdateResultSet.java:817)
>         at org.apache.derby.impl.sql.execute.UpdateResultSet.open(UpdateResultSe
> t.java:280)
>         at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(Generi
> cPreparedStatement.java:436)
>         at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPre
> paredStatement.java:317)
>         at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedState
> ment.java:1232)
>         ... 10 more
> ij>

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