[hibernate-issues] [Hibernate-JIRA] Created: (HHH-5909) SybaseASE15Dialect getMaxAliasLength() cause SQL exception

[Yang Li (JIRA)]

SybaseASE15Dialect getMaxAliasLength() cause SQL exception
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                 Key: HHH-5909
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5909
             Project: Hibernate Core
          Issue Type: Bug
          Components: core
    Affects Versions: 3.6.1, 3.6.0
         Environment: Sybase ASE 15.5 with Sybase JDBC 3 (jconn3.jar)
Hibernate 3.6.0 final
JDK 1.6.0_23
            Reporter: Yang Li
            Priority: Critical


After upgrade Hibernate from 3.2.0 to 3.6.0, I got following exception with following SQL (converted from HQL):

select defaultwdo1_.displayDescriptionTemplate as displayDescriptionTemplate30_1_ from WJob wjob0_, WDocDist defaultwdo1_

Caused by: com.sybase.jdbc3.jdbc.SybSQLException: The identifier that starts with 'displayDescriptionTemplate30_1' is too long. Maximum length is 30.

	at com.sybase.jdbc3.tds.Tds.a(Unknown Source)
	at com.sybase.jdbc3.tds.Tds.nextResult(Unknown Source)
	at com.sybase.jdbc3.jdbc.ResultGetter.nextResult(Unknown Source)
	at com.sybase.jdbc3.jdbc.SybStatement.nextResult(Unknown Source)
	at com.sybase.jdbc3.jdbc.SybStatement.nextResult(Unknown Source)
	at com.sybase.jdbc3.jdbc.SybStatement.queryLoop(Unknown Source)
	at com.sybase.jdbc3.jdbc.SybStatement.executeQuery(Unknown Source)
	at com.sybase.jdbc3.jdbc.SybPreparedStatement.executeQuery(Unknown Source)
	at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208)
	at org.hibernate.loader.Loader.getResultSet(Loader.java:1953)

The same SQL can be executed in native Sybase ISQL environment without any error. 

The workaround using Sybase11Dilect or modify getMaxAliasLength() inside SybaseASE15Dialect to return a smaller number(e.g. 20)


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