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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-3744) User-coded functions can't return Blob or Clob because these raise connection-killing errors in the byte-code compiler
Date Mon, 30 Jun 2008 15:25:45 GMT
User-coded functions can't return Blob or Clob because these raise connection-killing errors
in the byte-code compiler
----------------------------------------------------------------------------------------------------------------------

                 Key: DERBY-3744
                 URL: https://issues.apache.org/jira/browse/DERBY-3744
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.5.0.0
            Reporter: Rick Hillegas


User-coded functions which return Blob or Clob choke the byte-code compiler. When trying to
invoke a user-coded function which returns a Blob, you see the following error and the connection
becomes unusable:

java.lang.NoSuchMethodException: org.apache.derby.iapi.types.DataValueFactory.getBlobDataValue(java.sql.Blob,
org.apache.derby.iapi.types.BitDataValue)
	at java.lang.Class.getDeclaredMethod(Class.java:1909)
	at org.apache.derby.impl.services.bytecode.d_BCValidate.checkMethod(d_BCValidate.java:132)
	at org.apache.derby.impl.services.bytecode.BCMethod.callMethod(BCMethod.java:745)
	at org.apache.derby.impl.sql.compile.BaseTypeCompiler.generateDataValue(BaseTypeCompiler.java:187)
	at org.apache.derby.impl.sql.compile.ExpressionClassBuilder.generateDataValue(ExpressionClassBuilder.java:899)
	at org.apache.derby.impl.sql.compile.JavaToSQLValueNode.generateExpression(JavaToSQLValueNode.java:170)
	at org.apache.derby.impl.sql.compile.CastNode.generateExpression(CastNode.java:851)
	at org.apache.derby.impl.sql.compile.SQLToJavaValueNode.generateSQLValue(SQLToJavaValueNode.java:352)
	at org.apache.derby.impl.sql.compile.SQLToJavaValueNode.generateExpression(SQLToJavaValueNode.java:332)
	at org.apache.derby.impl.sql.compile.JavaToSQLValueNode.generateExpression(JavaToSQLValueNode.java:167)
	at org.apache.derby.impl.sql.compile.ResultColumn.generateExpression(ResultColumn.java:893)
	at org.apache.derby.impl.sql.compile.ResultColumnList.generateCore(ResultColumnList.java:1193)
	at org.apache.derby.impl.sql.compile.ResultColumnList.generate(ResultColumnList.java:1028)
	at org.apache.derby.impl.sql.compile.RowResultSetNode.generate(RowResultSetNode.java:690)
	at org.apache.derby.impl.sql.compile.ScrollInsensitiveResultSetNode.generate(ScrollInsensitiveResultSetNode.java:109)
	at org.apache.derby.impl.sql.compile.CursorNode.generate(CursorNode.java:564)
	at org.apache.derby.impl.sql.compile.StatementNode.generate(StatementNode.java:347)
	at org.apache.derby.impl.sql.GenericStatement.prepMinion(GenericStatement.java:447)
	at org.apache.derby.impl.sql.GenericStatement.prepare(GenericStatement.java:88)
	at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(GenericLanguageConnectionContext.java:794)
	at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:606)
	at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:555)
	at org.apache.derby.impl.tools.ij.ij.executeImmediate(ij.java:329)
	at org.apache.derby.impl.tools.ij.utilMain.doCatch(utilMain.java:508)
	at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:350)
	at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:248)
	at org.apache.derby.impl.tools.ij.Main.go(Main.java:215)
	at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:181)
	at org.apache.derby.impl.tools.ij.Main.main(Main.java:73)
	at org.apache.derby.tools.ij.main(ij.java:59)
Invalid method org.apache.derby.iapi.types.DataValueFactory >> org.apache.derby.iapi.types.BitDataValue
getBlobDataValue(java.sql.Blob, org.apache.derby.iapi.types.BitDataValue) because java.lang.NoSuchMethodException:
org.apache.derby.iapi.types.DataValueFactory.getBlobDataValue(java.sql.Blob, org.apache.derby.iapi.types.BitDataValue)
ERROR XJ001: Java exception: 'ASSERT FAILED Invalid method org.apache.derby.iapi.types.DataValueFactory
>> org.apache.derby.iapi.types.BitDataValue getBlobDataValue(java.sql.Blob, org.apache.derby.iapi.types.BitDataValue)
because java.lang.NoSuchMethodException: org.apache.derby.iapi.types.DataValueFactory.getBlobDataValue(java.sql.Blob,
org.apache.derby.iapi.types.BitDataValue): org.apache.derby.shared.common.sanity.AssertFailure'.


Similarly, if you invoke a user-coded function which returns a Clob, you see the following
error and the connection becomes unusable:

java.lang.NoSuchMethodException: org.apache.derby.iapi.types.DataValueFactory.getClobDataValue(java.sql.Clob,
org.apache.derby.iapi.types.StringDataValue)
	at java.lang.Class.getDeclaredMethod(Class.java:1909)
	at org.apache.derby.impl.services.bytecode.d_BCValidate.checkMethod(d_BCValidate.java:132)
	at org.apache.derby.impl.services.bytecode.BCMethod.callMethod(BCMethod.java:745)
	at org.apache.derby.impl.sql.compile.BaseTypeCompiler.generateDataValue(BaseTypeCompiler.java:187)
	at org.apache.derby.impl.sql.compile.ExpressionClassBuilder.generateDataValue(ExpressionClassBuilder.java:899)
	at org.apache.derby.impl.sql.compile.JavaToSQLValueNode.generateExpression(JavaToSQLValueNode.java:170)
	at org.apache.derby.impl.sql.compile.CastNode.generateExpression(CastNode.java:851)
	at org.apache.derby.impl.sql.compile.SQLToJavaValueNode.generateSQLValue(SQLToJavaValueNode.java:352)
	at org.apache.derby.impl.sql.compile.SQLToJavaValueNode.generateExpression(SQLToJavaValueNode.java:332)
	at org.apache.derby.impl.sql.compile.JavaToSQLValueNode.generateExpression(JavaToSQLValueNode.java:167)
	at org.apache.derby.impl.sql.compile.ResultColumn.generateExpression(ResultColumn.java:893)
	at org.apache.derby.impl.sql.compile.ResultColumnList.generateCore(ResultColumnList.java:1193)
	at org.apache.derby.impl.sql.compile.ResultColumnList.generate(ResultColumnList.java:1028)
	at org.apache.derby.impl.sql.compile.RowResultSetNode.generate(RowResultSetNode.java:690)
	at org.apache.derby.impl.sql.compile.ScrollInsensitiveResultSetNode.generate(ScrollInsensitiveResultSetNode.java:109)
	at org.apache.derby.impl.sql.compile.CursorNode.generate(CursorNode.java:564)
	at org.apache.derby.impl.sql.compile.StatementNode.generate(StatementNode.java:347)
	at org.apache.derby.impl.sql.GenericStatement.prepMinion(GenericStatement.java:447)
	at org.apache.derby.impl.sql.GenericStatement.prepare(GenericStatement.java:88)
	at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(GenericLanguageConnectionContext.java:794)
	at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:606)
	at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:555)
	at org.apache.derby.impl.tools.ij.ij.executeImmediate(ij.java:329)
	at org.apache.derby.impl.tools.ij.utilMain.doCatch(utilMain.java:508)
	at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:350)
	at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:248)
	at org.apache.derby.impl.tools.ij.Main.go(Main.java:215)
	at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:181)
	at org.apache.derby.impl.tools.ij.Main.main(Main.java:73)
	at org.apache.derby.tools.ij.main(ij.java:59)
Invalid method org.apache.derby.iapi.types.DataValueFactory >> org.apache.derby.iapi.types.StringDataValue
getClobDataValue(java.sql.Clob, org.apache.derby.iapi.types.StringDataValue) because java.lang.NoSuchMethodException:
org.apache.derby.iapi.types.DataValueFactory.getClobDataValue(java.sql.Clob, org.apache.derby.iapi.types.StringDataValue)
ERROR XJ001: Java exception: 'ASSERT FAILED Invalid method org.apache.derby.iapi.types.DataValueFactory
>> org.apache.derby.iapi.types.StringDataValue getClobDataValue(java.sql.Clob, org.apache.derby.iapi.types.StringDataValue)
because java.lang.NoSuchMethodException: org.apache.derby.iapi.types.DataValueFactory.getClobDataValue(java.sql.Clob,
org.apache.derby.iapi.types.StringDataValue): org.apache.derby.shared.common.sanity.AssertFailure'.


I will attach test cases which demonstrate these problems.

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