[jira] [Created] (CAY-2764) Split expressions do not work with DB relationships

["Andrus Adamchik (Jira)" <ji...@apache.org>]

Andrus Adamchik created CAY-2764:
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             Summary: Split expressions do not work with DB relationships
                 Key: CAY-2764
                 URL: https://issues.apache.org/jira/browse/CAY-2764
             Project: Cayenne
          Issue Type: Bug
    Affects Versions: 4.2.RC1
            Reporter: Andrus Adamchik


As a workaround for CAY-2763,  I tried to use a DB expression with split paths ("db:|dbr11.dbr12"), building the expression on my own, using ""ExpressionFactory.matchAllExp(String, Collection)" as a template, but replacing all ASTObjPath with ASTDbPath. This doesn't work:

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[19/Oct/2022:10:08:30,910] bootique-http-42 WARN olD0dqQ-80000000 test_id i.a.c.s.CayenneRuntimeExceptionMapper: Cayenne exception
org.apache.cayenne.CayenneRuntimeException: [v.4.2.RC1 Jun 03 2022 10:10:32] Query exception.
at org.apache.cayenne.access.DataDomainQueryAction.nextQueryException(DataDomainQueryAction.java:622)
at org.apache.cayenne.access.DataNode.performQueries(DataNode.java:279)
at org.apache.cayenne.access.DataDomainQueryAction.runQuery(DataDomainQueryAction.java:468)
at org.apache.cayenne.access.DataDomainQueryAction.lambda$runQueryInTransaction$1(DataDomainQueryAction.java:444)
at org.apache.cayenne.tx.DefaultTransactionManager$BaseTransactionHandler.performInTransaction(DefaultTransactionManager.java:180)
at org.apache.cayenne.tx.DefaultTransactionManager$BaseTransactionHandler.performInNewTransaction(DefaultTransactionManager.java:152)
at org.apache.cayenne.tx.DefaultTransactionManager$NestedTransactionHandler.handle(DefaultTransactionManager.java:95)
at org.apache.cayenne.tx.DefaultTransactionManager.performInTransaction(DefaultTransactionManager.java:62)
at org.apache.cayenne.tx.DefaultTransactionManager.performInTransaction(DefaultTransactionManager.java:40)
at org.apache.cayenne.access.DataDomainQueryAction.runQueryInTransaction(DataDomainQueryAction.java:443)
at org.apache.cayenne.access.DataDomainQueryAction.execute(DataDomainQueryAction.java:127)
at org.apache.cayenne.access.DataDomain.onQueryNoFilters(DataDomain.java:570)
at org.apache.cayenne.access.DataDomain$DataDomainQueryFilterChain.onQuery(DataDomain.java:819)
at io.bootique.cayenne.v42.junit5.tester.QueryCounter.onQuery(QueryCounter.java:45)
at org.apache.cayenne.access.DataDomain$DataDomainQueryFilterChain.onQuery(DataDomain.java:818)
at org.apache.cayenne.access.DataDomain.onQuery(DataDomain.java:562)
at org.apache.cayenne.util.ObjectContextQueryAction.runQuery(ObjectContextQueryAction.java:406)
at org.apache.cayenne.util.ObjectContextQueryAction.executePostCache(ObjectContextQueryAction.java:107)
at org.apache.cayenne.util.ObjectContextQueryAction.execute(ObjectContextQueryAction.java:94)
at org.apache.cayenne.access.DataContext.onQuery(DataContext.java:960)
at org.apache.cayenne.access.DataContext.performQuery(DataContext.java:949)
at org.apache.cayenne.BaseContext.select(BaseContext.java:307)

Caused by: java.lang.IllegalStateException: Unable to resolve path: dbr11#split0_0.dbr12
at org.apache.cayenne.access.translator.select.DbPathProcessor.processNormalAttribute(DbPathProcessor.java:63)
at org.apache.cayenne.access.translator.select.PathProcessor.process(PathProcessor.java:79)
at org.apache.cayenne.access.translator.select.PathTranslator.lambda$translatePath$1(PathTranslator.java:57)
at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1737)
at org.apache.cayenne.access.translator.select.PathTranslator.translatePath(PathTranslator.java:56)
at org.apache.cayenne.access.translator.select.PathTranslator.translatePath(PathTranslator.java:61)
at org.apache.cayenne.access.translator.select.PathTranslator.translatePath(PathTranslator.java:65)
at org.apache.cayenne.access.translator.select.QualifierTranslator.expressionNodeToSqlNode(QualifierTranslator.java:160)
at org.apache.cayenne.access.translator.select.QualifierTranslator.startNode(QualifierTranslator.java:118)
at org.apache.cayenne.exp.Expression.traverse(Expression.java:568)
at org.apache.cayenne.exp.Expression.traverse(Expression.java:577)
at org.apache.cayenne.exp.Expression.traverse(Expression.java:577)
at org.apache.cayenne.exp.Expression.traverse(Expression.java:577)
at org.apache.cayenne.exp.Expression.traverse(Expression.java:557)
at org.apache.cayenne.access.translator.select.QualifierTranslator.translate(QualifierTranslator.java:96)
at org.apache.cayenne.access.translator.select.QualifierTranslationStage.perform(QualifierTranslationStage.java:52)
at org.apache.cayenne.access.translator.select.DefaultSelectTranslator.translate(DefaultSelectTranslator.java:98)
at org.apache.cayenne.access.translator.select.DefaultSelectTranslator.getSql(DefaultSelectTranslator.java:104)
at org.apache.cayenne.access.jdbc.SelectAction.performAction(SelectAction.java:87)
at org.apache.cayenne.access.DataNodeQueryAction.runQuery(DataNodeQueryAction.java:97)
at org.apache.cayenne.access.DataNode.performQueries(DataNode.java:273)
... 105 common frames omitted
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