java.sql.SQLException: ORA-00904: "Y6_": invalid identifier when performing search by criteria with columns aliases defined and with restriction defined
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          Key: HHH-5020
          URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5020
        Project: Hibernate Core
      Issue Type: Bug
      Components: query-criteria
  Affects Versions: 3.2.5
     Environment: Oracle 10g
       Reporter: Alexander
     Attachments: stacktrace.JPG

The exception is occured when I performs search by criteria like this

   DetachedCriteria headerCrit = DetachedCriteria.forClass(LOSHeader.class);
   ProjectionList prjList = Projections.projectionList();
   prjList.add(Projections.groupProperty("channelId"),"channelId");
   prjList.add(Projections.groupProperty("channel"),"channel");
   prjList.add(Projections.groupProperty("subCategoryId"),"subCategoryId");
   prjList.add(Projections.groupProperty("subCategory"),"subCategory");
   prjList.add(Projections.groupProperty("bevCategoryId"),"bevCategoryId");
   prjList.add(Projections.groupProperty("bevCategory"),"bevCategory");
   prjList.add(Projections.groupProperty("accessFilter"),"accessFilter");
   headerCrit.setProjection(prjList);

   headerCrit.add(Restrictions.like("accessFilter","%,INTERNAL;%"));

   headerCrit.setResultTransformer(Transformers.aliasToBean(LOSHeader.class));

   List result = pipelineDAO.loadByCriteria(headerCrit, LOSHeader.class);



Criteria string:
DetachableCriteria(CriteriaImpl(com.ko.cokechannel.los.impl.entity.LOSHeader:this[][accessFilter like %,INTERNAL;%][channelId as channelId, channel as channel, subCategoryId as subCategoryId, subCategory as subCategory, bevCategoryId as bevCategoryId, bevCategory as bevCategory, accessFilter as accessFilter]))

The is list of projections:
[channelId as channelId, channel as channel, subCategoryId as subCategoryId, subCategory as subCategory, bevCategoryId as bevCategoryId, bevCategory as bevCategory, accessFilter as accessFilter]

Method execution stack trace (also the screenshot of stack trace is attached) :
CriteriaQueryTranslator.getWhereCondition()->
String sqlString = entry.getCriterion().toSqlString( entry.getCriteria(), this );
SimpleExpression.toSqlString() ->
CriteriaQueryTranslator.getColumnsUsingProjection(criteria, propertyName); // propertyName is "accessFilter"
ProjectionList.getColumnAliases(String alias, int loc){ // alias = "accessFilter"
   ....
    String[] result = getProjection(i).getColumnAliases(alias, loc);
    if (result!=null) return result;
   .....
result is:  [y6_] // Restriction for accessFilter property is mathced with the value from projection aliases, so [y6_] is returned for the WHERE condition

WHERE clause sql: y6_ like ?

The final sql looks like:
select this_.CHANNEL_ID as y0_, this_.CHANNEL_NM as y1_, this_.SUB_CATEGORY_ID as y2_, this_.SUB_CATEGORY_NM as y3_, this_.BEV_CATEGORY_ID as y4_, this_.BEV_CATEGORY_NM as y5_, this_.ACCESS_FILTER as y6_ from V_LOS_LIST this_
WHERE y6_ like ? <<<<<<< ---- THIS IS WRONG -
group by this_.CHANNEL_ID, this_.CHANNEL_NM, this_.SUB_CATEGORY_ID, this_.SUB_CATEGORY_NM, this_.BEV_CATEGORY_ID, this_.BEV_CATEGORY_NM, this_.ACCESS_FILTER

I think that the cause of this issue is the same as was mentioned in http://opensource.atlassian.com/projects/hibernate/browse/HHH-2847

To easy reproduce this issue just try to search by a criteria like this:
   DetachedCriteria criteria = DetachedCriteria.forClass(Entity.class);
   criteria.setProjection(Projections.groupProperty("propertyA"),"propertyA");
   criteria.add(Restrictions.like("propertyA", "%"));
   criteria.setResultTransformer(Transformers.aliasToBean(Entity.class));

Thank you,
Alex

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