安装dspace连接postgresql出错

安装dspace
建立管理员帐号时出错
把错误日志贴上,希望能人解答!

log如下:
2008-04-25 13:52:39,121 WARN org.dspace.app.webui.filter.RegisteredOnlyFilter @ anonymous:no_context:database_error:org.postgresql.util.PSQLException: ERROR: operator does not exist: integer = character varying
org.postgresql.util.PSQLException: ERROR: operator does not exist: integer = character varying
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1592)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1327)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:192)
at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:451)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:350)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:254)
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)
at org.dspace.storage.rdbms.DatabaseManager.queryTable(DatabaseManager.java:159)
at org.dspace.storage.rdbms.DatabaseManager.querySingleTable(DatabaseManager.java:447)
at org.dspace.storage.rdbms.DatabaseManager.querySingleTable(DatabaseManager.java:465)
at org.dspace.storage.rdbms.DatabaseManager.findByUnique(DatabaseManager.java:647)
at org.dspace.storage.rdbms.DatabaseManager.find(DatabaseManager.java:612)
at org.dspace.eperson.EPerson.find(EPerson.java:126)
at org.dspace.app.webui.util.UIUtil.obtainContext(UIUtil.java:124)
at org.dspace.app.webui.filter.RegisteredOnlyFilter.doFilter(RegisteredOnlyFilter.java:90)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:810)

与数据库版本呢兼容问题，现已解决！