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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-4407) StringIndexOutOfBoundsException in ij when result has no columns
Date Tue, 13 Oct 2009 12:50:31 GMT
StringIndexOutOfBoundsException in ij when result has no columns

                 Key: DERBY-4407
                 URL: https://issues.apache.org/jira/browse/DERBY-4407
             Project: Derby
          Issue Type: Bug
          Components: Tools
    Affects Versions:
            Reporter: Knut Anders Hatlen
            Priority: Minor

A query that returns no columns should perhaps raise an SQLException of some kind, I don't
know, but currently it doesn't, and ij fails with a StringIndexOutOfBoundsException when it
tries to display the result.

After DERBY-4370 it is possible to construct queries that return no columns by having a select
list like T1.* in a join where the USING clause contains all of T1's columns. To reproduce:

ij> create table t(x int);
0 rows inserted/updated/deleted
ij> insert into t values (1),(2),(3);
3 rows inserted/updated/deleted
ij> select t1.* from t t1 join t t2 using (x);
JAVA ERROR: java.lang.StringIndexOutOfBoundsException: String index out of range: -1
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
	at java.lang.AbstractStringBuilder.setLength(AbstractStringBuilder.java:143)
	at java.lang.StringBuffer.setLength(StringBuffer.java:153)
	at org.apache.derby.tools.JDBCDisplayUtil.indent_DisplayBanner(JDBCDisplayUtil.java:627)
	at org.apache.derby.tools.JDBCDisplayUtil.indent_DisplayResults(JDBCDisplayUtil.java:368)
	at org.apache.derby.tools.JDBCDisplayUtil.indent_DisplayResults(JDBCDisplayUtil.java:338)
	at org.apache.derby.tools.JDBCDisplayUtil.indent_DisplayResults(JDBCDisplayUtil.java:241)
	at org.apache.derby.tools.JDBCDisplayUtil.DisplayResults(JDBCDisplayUtil.java:229)
	at org.apache.derby.impl.tools.ij.utilMain.displayResult(utilMain.java:448)
	at org.apache.derby.impl.tools.ij.utilMain.doCatch(utilMain.java:522)
	at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:363)
	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)
	at org.apache.derby.iapi.tools.run.main(run.java:53)

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