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[Hibernate-issues] [Hibernate-JIRA] Commented: (HHH-1902) Alias Problem... Hibernate is replacing our alias at one place but not at another place
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From: Paras D. (JIRA) <no...@at...> - 2006-07-28 12:52:27
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[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1902?page=comments#action_23796 ] Paras Dhawan commented on HHH-1902: ----------------------------------- A test case cannot be given to you as it also requires all the mapping classes and code of our query parser But I will try to explain you the scenario... actually we are giving a complex attribute in the select list e.g. city.state.country.[region,country].population such type of attributes are resolved by our query parser the meaning of such attributes is city is containing an object of state (many to one) and state contains an object of country (again many to one), region contains an object of country (one to many) and we want the population of region such attributes form a subquery ... which is formed by our query parser.... we also want to order the results thus an order by clause is added on the same attribute city.state.country.[region,country].population The query parser forms a sub query and assigns an alias 'sqry1' as the same column is added in the order by clause also thus this alias is added in the order by clause the query form like this (query is similar to this query) select (select SUM(servicecha3_.ChargeAmount) from Services service2_, ServiceCharges servicecha3_ where transports1_.TransportServiceId=service2_.ServiceId and service2_.ServiceId=servicecha3_.serviceGroupTablePKId) as col_0_0_ from Challans challan0_ left outer join TransportServices transports1_ on challan0_.TransportServiceId=transports1_.TransportServiceId left outer join Services transports1_1_ on transports1_.TransportServiceId=transports1_1_.ServiceId order by _sqry1 now the hibernate replaces our alias from sqry1 to col_0_0_ but it does not replaces this alias in the order by clause... thus the alias sqry1 becomes undefined now and it gives an error Thus hibernate is just replacing our alias where it is formed but not at the place where we are using it > Alias Problem... Hibernate is replacing our alias at one place but not at another place > --------------------------------------------------------------------------------------- > > Key: HHH-1902 > URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1902 > Project: Hibernate3 > Type: Bug > Components: query-hql > Versions: 3.0.3 > Environment: Hibernate 3.0.3 > Database Platform : MSSQL Server 2000 > Reporter: Paras Dhawan > > > I have a query which contains a sub query in the select list... I have defined an alias of the sub query as _sqry1 now I am putting an Order By clause in the query.... Order By is on the result of the sub query and I have given the alias of the sub query in the Order By clause > My Query is which i am giving to Hibernate is > SELECT (SELECT SUM(_0_ServiceCharge_0_service.chargeAmount) FROM Service AS _0_service , ServiceCharge AS _0_ServiceCharge_0_service WHERE _transportService_Challan = _0_service AND _0_service = _0_ServiceCharge_0_service.service) AS _sqry1 FROM Challan AS _Challan LEFT OUTER JOIN _Challan.transportService AS _transportService_Challan ORDER BY _sqry1 > Now the problem is that Hibernate is replacing my aliases.... it replaced my alias of the sub query from _sqry1 to col_0_0_ .... it replaced this alias in the select list but not in the Order By clause... i.e. it replaced the alias where I defined it but it did not replaced the alias where I used it.... so the place where I am using the alias it is giving an error as undefined alias > The generated SQL by Hibernate: > select (select SUM(servicecha3_.ChargeAmount) from Services service2_, ServiceCharges servicecha3_ where transports1_.TransportServiceId=service2_.ServiceId and service2_.ServiceId=servicecha3_.serviceGroupTablePKId) as col_0_0_ from Challans challan0_ left outer join TransportServices transports1_ on challan0_.TransportServiceId=transports1_.TransportServiceId left outer join Services transports1_1_ on transports1_.TransportServiceId=transports1_1_.ServiceId order by _sqry1 > when I manually replaced my alias in the Order By clause then my query run successfully > Either Hibernate should not replace my alias, even if it is replacing then it must replace all the occurences > I cannot use criteria, I cannot use named queries, i cannot use native sql because my queries are formed at run time, I have to specify a HQL only... This is bug in Hibernate > Hibernate version: 3.0.5 > Name and version of the database that I am using: > MS SQL Server 2000 > Full stack trace of any exception that occurs: > Exception in thread "main" org.hibernate.exception.SQLGrammarException: could not execute query > at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67) > at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) > at org.hibernate.loader.Loader.doList(Loader.java:2148) > at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029) > at org.hibernate.loader.Loader.list(Loader.java:2024) > at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:375) > at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:308) > at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:153) > at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1106) > at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79) > at com.daffodilwoods.framework.utils.HibernateUtil.main(HibernateUtil.java:296) > Caused by: java.sql.SQLException: [DataDirect][SQLServer JDBC Driver][SQLServer]Invalid column name '_sqry1'. > at com.ddtek.jdbc.base.BaseExceptions.createException(Unknown Source) > at com.ddtek.jdbc.base.BaseExceptions.getException(Unknown Source) > at com.ddtek.jdbc.sqlserver.tds.TDSRequest.processErrorToken(Unknown Source) > at com.ddtek.jdbc.sqlserver.tds.TDSRequest.processReplyToken(Unknown Source) > at com.ddtek.jdbc.sqlserver.tds.TDSRPCRequest.processReplyToken(Unknown Source) > at com.ddtek.jdbc.sqlserver.tds.TDSRequest.processReply(Unknown Source) > at com.ddtek.jdbc.sqlserver.tds.TDSRPCNonCursorExecuteRequest.submitPrepare(Unknown Source) > at com.ddtek.jdbc.sqlserver.tds.TDSRPCExecuteRequest.doPrepExec(Unknown Source) > at com.ddtek.jdbc.sqlserver.tds.TDSRPCExecuteRequest.execute(Unknown Source) > at com.ddtek.jdbc.sqlserver.SQLServerImplStatement.execute(Unknown Source) > at com.ddtek.jdbc.base.BaseStatement.commonExecute(Unknown Source) > at com.ddtek.jdbc.base.BaseStatement.executeQueryInternal(Unknown Source) > at com.ddtek.jdbc.base.BasePreparedStatement.executeQuery(Unknown Source) > at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:139) > at org.hibernate.loader.Loader.getResultSet(Loader.java:1669) > at org.hibernate.loader.Loader.doQuery(Loader.java:662) > at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224) > at org.hibernate.loader.Loader.doList(Loader.java:2145) > ... 8 more -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira |
