[DERBY-2230] AssertFailure: ByteCode Conditional then/else stack mismatch

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 10.2.2.0
• Fix Version/s: 10.3.1.4
• Component/s: SQL
• Environment: The AssertFailure error occurs only with the debug version of derby.jar.; Java 1.5
• Assignee: Mayuresh Nirhali
• Reporter: Christian d'Heureuse
• Created: 11/Jan/07 01:42
• Updated: 21/Jan/11 17:49
• Resolved: 08/Jun/07 18:04

Description

The following statements produce an AssertFailure exception:

CREATE TABLE table1 (
s VARCHAR(10));

SELECT 1
FROM table1 a
INNER JOIN table1 b ON
a.s =
CASE
WHEN 1=1 THEN '0'
ELSE SUBSTR(b.s,1,1) END;

Stack trace:

org.apache.derby.shared.common.sanity.AssertFailure: ASSERT FAILED ByteCode Conditional then/else stack mismatch: then: Lorg/apache/derby/iapi/types/StringDataValue; else: Lorg/apache/derby/iapi/types/ConcatableDataValue;
at org.apache.derby.shared.common.sanity.SanityManager.THROWASSERT(SanityManager.java:149)
at org.apache.derby.impl.services.bytecode.Conditional.end(Conditional.java:216)
at org.apache.derby.impl.services.bytecode.BCMethod.completeConditional(BCMethod.java:1063)
at org.apache.derby.impl.sql.compile.ConditionalNode.generateExpression(ConditionalNode.java:468)
at org.apache.derby.impl.sql.compile.BinaryRelationalOperatorNode.generateQualMethod(BinaryRelationalOperatorNode.java:708)
at org.apache.derby.impl.sql.compile.PredicateList.generateSingleQualifierCode(PredicateList.java:2723)
at org.apache.derby.impl.sql.compile.PredicateList.generateQualifiers(PredicateList.java:2905)
at org.apache.derby.impl.sql.compile.HashJoinStrategy.getScanArgs(HashJoinStrategy.java:348)
at org.apache.derby.impl.sql.compile.FromBaseTable.getScanArguments(FromBaseTable.java:3368)
at org.apache.derby.impl.sql.compile.FromBaseTable.generateResultSet(FromBaseTable.java:3059)
at org.apache.derby.impl.sql.compile.FromBaseTable.generate(FromBaseTable.java:2986)
at org.apache.derby.impl.sql.compile.ProjectRestrictNode.generateMinion(ProjectRestrictNode.java:1352)
at org.apache.derby.impl.sql.compile.ProjectRestrictNode.generate(ProjectRestrictNode.java:1303)
at org.apache.derby.impl.sql.compile.JoinNode.getJoinArguments(JoinNode.java:1580)
at org.apache.derby.impl.sql.compile.JoinNode.generateCore(JoinNode.java:1556)
at org.apache.derby.impl.sql.compile.JoinNode.generate(JoinNode.java:1480)
at org.apache.derby.impl.sql.compile.ProjectRestrictNode.generateMinion(ProjectRestrictNode.java:1441)
at org.apache.derby.impl.sql.compile.ProjectRestrictNode.generate(ProjectRestrictNode.java:1303)
at org.apache.derby.impl.sql.compile.ScrollInsensitiveResultSetNode.generate(ScrollInsensitiveResultSetNode.java:110)
at org.apache.derby.impl.sql.compile.CursorNode.generate(CursorNode.java:583)
at org.apache.derby.impl.sql.compile.StatementNode.generate(StatementNode.java:233)
at org.apache.derby.impl.sql.GenericStatement.prepMinion(GenericStatement.java:478)
at org.apache.derby.impl.sql.GenericStatement.prepare(GenericStatement.java:119)
at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(GenericLanguageConnectionContext.java:745)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:568)
at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:517)
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.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.Main14.main(Unknown Source)
at org.apache.derby.tools.ij.main(Unknown Source)