データベースにPostgreSQLを試用している場合、where 句を発行するようなフィルタと、集計表を併せて使うと、

select creationus1_.username as y0_,
this_.date as y1_,
sum(this_.a) as y2_
from test.fuga_
this_ inner join test.tgw_user_ creationus1_ on this_.creationUser=creationus1_.id
where y1_ between ? and ? and creationus1_.username=?
group by creationus1_.username, this_.date

のようなSQL文が発行され、以下のようなエラーが発生する。

Caused by: org.seasar.framework.exception.SSQLException: [ESSR0072]SQLで例外(SQL=[select creationus1_.username as y0_, this_.date as y1_, sum(this_.ac) as y2_ from project.track_ this_ inner join project.tgw_user_ creationus1_ on this_.creationUser=creationus1_.id where y1_ between ? and ? and creationus1_.username=? group by creationus1_.username, this_.date], ErrorCode=0, SQLState=42703)が発生しました
at org.seasar.extension.dbcp.impl.ConnectionWrapperImpl$PreparedStatementWrapper.wrapException(ConnectionWrapperImpl.java:555)
at org.seasar.extension.dbcp.impl.ConnectionWrapperImpl$PreparedStatementWrapper.wrapException(ConnectionWrapperImpl.java:550)
at org.seasar.extension.dbcp.impl.ConnectionWrapperImpl$PreparedStatementWrapper.executeQuery(ConnectionWrapperImpl.java:566)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:139)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1669)
at org.hibernate.loader.Loader.doQuery(Loader.java:662)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.doList(Loader.java:2145)
... 70 more
Caused by: org.postgresql.util.PSQLException: ERROR: column "y1_" does not exist
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1512)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1297)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:188)
at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:430)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:346)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:250)
at org.seasar.extension.dbcp.impl.ConnectionWrapperImpl$PreparedStatementWrapper.executeQuery(ConnectionWrapperImpl.java:564)
... 75 more
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.criteria.CriteriaLoader.list(CriteriaLoader.java:94)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1533)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:283)
at org.seasar.tuigwaa.database.function.criteria.HibernateCriteria.list(HibernateCriteria.java:239)