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Date: Mon, 28 Apr 2008 16:23:55 -0700 (PDT)
From: "Kathey Marsden (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Commented: (DERBY-3649) can't call a stored function with an
 aggregate argument without getting the following error: ERROR 42Y29
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    [ https://issues.apache.org/jira/browse/DERBY-3649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12592927#action_12592927 ] 

Kathey Marsden commented on DERBY-3649:
---------------------------------------

It seems to only add it to the generated columns if it is an instance of ColumnReference.
In GroupByList see ~line 177
		if (! matchFound && 
			    groupingCol.getColumnExpression() instanceof ColumnReference) 
			{
			    	// only add matching columns for column references not 
			    	// expressions yet. See DERBY-883 for details. 


I am wondering if VerifyAggregateExpressionsVisitor  is even the right place to check if the group by expression is a function.
It seems to know only about the select columns. Maybe we should be checking elsewhere entirely.


> can't call a stored function with an aggregate argument without getting the following error: ERROR 42Y29
> --------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-3649
>                 URL: https://issues.apache.org/jira/browse/DERBY-3649
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.4.1.3
>         Environment: ------------------ Java Information ------------------
> Java Version:    1.6.0
> Java Vendor:     Sun Microsystems Inc.
> Java home:       /usr/java/jdk1.6.0/jre
> Java classpath:  /me/apache_libs/db-derby-10.4.1.3-bin/lib/derby.jar:/me/apache_libs/db-derby-10.4.1.3-bin/lib/derbynet.jar:/me/apache_libs/db-derby-10.4.1.3-bin/lib/derbytools.jar:/me/apache_libs/db-derby-10.4.1.3-bin/lib/derbyclient.jar
> OS name:         Linux
> OS architecture: i386
> OS version:      2.6.23.1
> Java user name:  me
> Java user home:  /me
> Java user dir:   /me/apache_libs/db-derby-10.4.1.3-bin/bin
> java.specification.name: Java Platform API Specification
> java.specification.version: 1.6
> --------- Derby Information --------
> JRE - JDBC: Java SE 6 - JDBC 4.0
> [/me/apache_libs/db-derby-10.4.1.3-bin/lib/derby.jar] 10.4.1.3 - (648739)
> [/me/apache_libs/db-derby-10.4.1.3-bin/lib/derbytools.jar] 10.4.1.3 - (648739)
> [/me/apache_libs/db-derby-10.4.1.3-bin/lib/derbynet.jar] 10.4.1.3 - (648739)
> [/me/apache_libs/db-derby-10.4.1.3-bin/lib/derbyclient.jar] 10.4.1.3 - (648739)
> ------------------------------------------------------
> ----------------- Locale Information -----------------
> Current Locale :  [English/United States [en_US]]
> Found support for locale: [cs]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [de_DE]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [es]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [fr]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [hu]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [it]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [ja_JP]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [ko_KR]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [pl]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [pt_BR]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [ru]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [zh_CN]
>          version: 10.4.1.3 - (648739)
> Found support for locale: [zh_TW]
>          version: 10.4.1.3 - (648739)
> ------------------------------------------------------
>            Reporter: Sebastian
>            Assignee: Kathey Marsden
>
> hi,
> i cant execute the following statement with an aggregate (count(*)) argument:
> SELECT checkCount(count(*)) FROM SYS.SYSTABLES;
> .. without  getting this error/stacktrace:
> ERROR 42Y29: The SELECT list of a non-grouped query contains at least one invalid expression. When the SELECT list contains at least one aggregate then all entries must be valid aggregate expressions.
> java.sql.SQLSyntaxErrorException: The SELECT list of a non-grouped query contains at least one invalid expression. When the SELECT list contains at least one aggregate then all entries must be valid aggregate expressions.
> 	at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(Unknown Source)
> 	at org.apache.derby.client.am.SqlException.getSQLException(Unknown Source)
> 	at org.apache.derby.client.am.Statement.execute(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.ij.executeImmediate(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.utilMain.doCatch(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.Main.go(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source)
> 	at org.apache.derby.impl.tools.ij.Main.main(Unknown Source)
> 	at org.apache.derby.tools.ij.main(Unknown Source)
> Caused by: org.apache.derby.client.am.SqlException: The SELECT list of a non-grouped query contains at least one invalid expression. When the SELECT list contains at least one aggregate then all entries must be valid aggregate expressions.
> 	at org.apache.derby.client.am.Statement.completeSqlca(Unknown Source)
> 	at org.apache.derby.client.net.NetStatementReply.parsePrepareError(Unknown Source)
> 	at org.apache.derby.client.net.NetStatementReply.parsePRPSQLSTTreply(Unknown Source)
> 	at org.apache.derby.client.net.NetStatementReply.readPrepareDescribeOutput(Unknown Source)
> 	at org.apache.derby.client.net.StatementReply.readPrepareDescribeOutput(Unknown Source)
> 	at org.apache.derby.client.net.NetStatement.readPrepareDescribeOutput_(Unknown Source)
> 	at org.apache.derby.client.am.Statement.readPrepareDescribeOutput(Unknown Source)
> 	at org.apache.derby.client.am.Statement.flowExecute(Unknown Source)
> 	at org.apache.derby.client.am.Statement.executeX(Unknown Source)
> 	... 9 more
> here the code to create the function in derby:
> CREATE FUNCTION checkCount
> (count INTEGER)
> RETURNS INTEGER
> LANGUAGE JAVA PARAMETER STYLE JAVA
> NO SQL
> EXTERNAL NAME 'ExceptionOnZeroCount.checkCount';
> and here the code of the (quite simple) java method:
> public class ExceptionOnZeroCount {
>     public static int checkCount(int count)
>             throws SQLException {
>         if (count == 0) 
>             throw new SQLException("No results found", "38777");
>         }
>         return count;
>     }
> }
> hope this will be fixed :) Good night!
> mamurdian

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