将Liferay 6.0.5升级到6.1.0时出现语法错误

我正在尝试将Liferay 6.0.5升级到6.1.0。为此，我遵循网站中的步骤。但在升级过程中，我得到了以下错误

10:48:21,489 INFO  [DialectDetector:80] Determine dialect for PostgreSQL 9
10:48:21,522 INFO  [DialectDetector:145] Found dialect org.hibernate.dialect.PostgreSQLDialect
Starting Liferay Portal Community Edition 6.1.0 CE (Paton / Build 6100 / January 6, 2012)
10:48:44,349 INFO  [BaseDB:406] Database supports case sensitive queries
10:48:44,530 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.UpgradeProcess_6_0_6
10:48:44,532 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.v6_0_6.UpgradeSchema
10:48:44,599 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.v6_0_6.UpgradeRSS
10:48:45,006 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.UpgradeProcess_6_1_0
10:48:45,007 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.v6_1_0.UpgradeSchema
10:49:07,783 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.v6_1_0.UpgradeUserName
10:49:08,272 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.v6_1_0.UpgradeAdminPortlets
10:49:21,512 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.v6_1_0.UpgradeBlogs
10:49:21,529 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.v6_1_0.UpgradeCamelCasePortletPreferences
10:53:16,032 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.v6_1_0.UpgradeCountry
10:53:16,264 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.v6_1_0.UpgradeDocumentLibrary
11:00:46,866 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.v6_1_0.UpgradeExpando
11:00:46,872 INFO  [UpgradeProcess:205] Upgrading com.liferay.portal.upgrade.v6_1_0.UpgradeGroup
11:00:51,024 ERROR [MainServlet:198] com.liferay.portal.kernel.events.ActionException: com.liferay.portal.kernel.upgrade.UpgradeException: com.liferay.portal.kernel.upgrade.UpgradeException: org.postgresql.util.PSQLException: ERROR: syntax error at or near "s"
  Position: 81
com.liferay.portal.kernel.events.ActionException: com.liferay.portal.kernel.upgrade.UpgradeException: com.liferay.portal.kernel.upgrade.UpgradeException: org.postgresql.util.PSQLException: ERROR: syntax error at or near "s"
  Position: 81
    at com.liferay.portal.events.StartupAction.run(StartupAction.java:58)
    at com.liferay.portal.servlet.MainServlet.processStartupEvents(MainServlet.java:1267)
    at com.liferay.portal.servlet.MainServlet.init(MainServlet.java:195)
    at javax.servlet.GenericServlet.init(GenericServlet.java:160)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1266)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1185)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1080)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5001)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5289)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:866)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:842)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1581)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:679)
Caused by: com.liferay.portal.kernel.upgrade.UpgradeException: com.liferay.portal.kernel.upgrade.UpgradeException: org.postgresql.util.PSQLException: ERROR: syntax error at or near "s"
  Position: 81
    at com.liferay.portal.kernel.upgrade.UpgradeProcess.upgrade(UpgradeProcess.java:211)
    at com.liferay.portal.upgrade.UpgradeProcessUtil._upgradeProcess(UpgradeProcessUtil.java:93)
    at com.liferay.portal.upgrade.UpgradeProcessUtil.upgradeProcess(UpgradeProcessUtil.java:46)
    at com.liferay.portal.events.StartupHelper.upgradeProcess(StartupHelper.java:81)
    at com.liferay.portal.events.StartupHelperUtil.upgradeProcess(StartupHelperUtil.java:40)
    at com.liferay.portal.tools.DBUpgrader.upgrade(DBUpgrader.java:119)
    at com.liferay.portal.events.StartupAction.doRun(StartupAction.java:144)
    at com.liferay.portal.events.StartupAction.run(StartupAction.java:52)
    ... 20 more
Caused by: com.liferay.portal.kernel.upgrade.UpgradeException: org.postgresql.util.PSQLException: ERROR: syntax error at or near "s"
  Position: 81
    at com.liferay.portal.kernel.upgrade.UpgradeProcess.upgrade(UpgradeProcess.java:211)
    at com.liferay.portal.kernel.upgrade.UpgradeProcess.upgrade(UpgradeProcess.java:225)
    at com.liferay.portal.upgrade.UpgradeProcess_6_1_0.doUpgrade(UpgradeProcess_6_1_0.java:66)
    at com.liferay.portal.kernel.upgrade.UpgradeProcess.upgrade(UpgradeProcess.java:208)
    ... 27 more
Caused by: org.postgresql.util.PSQLException: ERROR: syntax error at or near "s"
  Position: 81
    at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2103)
    at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1836)
    at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)
    at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:512)
    at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:374)
    at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:302)
    at com.mchange.v2.c3p0.impl.NewProxyStatement.executeUpdate(NewProxyStatement.java:64)
    at com.liferay.portal.dao.db.BaseDB.runSQL(BaseDB.java:237)
    at com.liferay.portal.dao.db.BaseDB.runSQL(BaseDB.java:204)
    at com.liferay.portal.dao.db.BaseDB.runSQL(BaseDB.java:191)
    at com.liferay.portal.kernel.upgrade.UpgradeProcess.runSQL(UpgradeProcess.java:115)
    at com.liferay.portal.upgrade.v6_1_0.UpgradeGroup.updateName(UpgradeGroup.java:86)
    at com.liferay.portal.upgrade.v6_1_0.UpgradeGroup.doUpgrade(UpgradeGroup.java:51)
    at com.liferay.portal.kernel.upgrade.UpgradeProcess.upgrade(UpgradeProcess.java:208)
    ... 30 more

10:48:21489信息[方言检测器：80]确定PostgreSQL 9的方言
10:48:21522信息[方言检测器：145]找到方言org.hibernate.dialen.postgresqldialdial
启动Liferay Portal社区版6.1.0 CE（Paton/Build 6100/2012年1月6日）
10:48:44349信息[BaseDB:406]数据库支持区分大小写的查询
10:48:44530信息[UpgradeProcess:205]升级com.liferay.portal.UpgradeProcess_6_0_6
10:48:44532信息[升级过程：205]升级com.liferay.portal.upgrade.v6_0_6.UpgradeSchema
10:48:44599信息[UpgradeProcess:205]升级com.liferay.portal.upgrade.v6_0_6.UpgradeRSS
10:48:45006信息[UpgradeProcess:205]升级com.liferay.portal.upgrade.UpgradeProcess_6_1_0
10:48:45007信息[UpgradeProcess:205]升级com.liferay.portal.upgrade.v6_1_0.UpgradeSchema
10:49:07783信息[升级过程：205]升级com.liferay.portal.upgrade.v6_1_0.UpgradeUserName
10:49:08272信息[UpgradeProcess:205]升级com.liferay.portal.upgrade.v6_1_0.upgradeAdminPortlet
10:49:21512信息[UpgradeProcess:205]升级com.liferay.portal.upgrade.v6_1_0.UpgradeBlogs
10:49:21529信息[升级流程：205]升级com.liferay.portal.upgrade.v6_1_0.UpgradeCamelCasePortletPreferences
10:53:16032信息[升级过程：205]升级com.liferay.portal.upgrade.v6_1_0.UpgradeCountry
10:53:16264信息[升级过程：205]升级com.liferay.portal.upgrade.v6_1_0.UpgradeDocumentLibrary
11:00:46866信息[升级过程：205]升级com.liferay.portal.upgrade.v6_1_0.UpgradeExpando
11:00:46872信息[升级过程：205]升级com.liferay.portal.upgrade.v6_1_0.UpgradeGroup
11:00:51024错误[MainServlet:198]com.liferay.portal.kernel.events.ActionException:com.liferay.portal.kernel.UpgradeException:com.liferay.portal.kernel.UpgradeException:org.postgresql.util.PSQLException:错误：语法错误位于或接近“s”
职位：81
com.liferay.portal.kernel.events.ActionException:com.liferay.portal.kernel.UpgradeException:com.liferay.portal.kernel.UpgradeException:org.postgresql.util.PSQLException:错误：语法错误位于或接近“s”
职位：81
位于com.liferay.portal.events.StartupAction.run（StartupAction.java:58）
位于com.liferay.portal.servlet.MainServlet.processStartupEvents（MainServlet.java:1267）
位于com.liferay.portal.servlet.MainServlet.init（MainServlet.java:195）
位于javax.servlet.GenericServlet.init（GenericServlet.java:160）
位于org.apache.catalina.core.StandardWrapper.initServlet（StandardWrapper.java:1266）
位于org.apache.catalina.core.StandardWrapper.loadServlet（StandardWrapper.java:1185）
位于org.apache.catalina.core.StandardWrapper.load（StandardWrapper.java:1080）
位于org.apache.catalina.core.StandardContext.loadOnStartup（StandardContext.java:5001）
位于org.apache.catalina.core.StandardContext.startInternal（StandardContext.java:5289）
位于org.apache.catalina.util.LifecycleBase.start（LifecycleBase.java:150）
位于org.apache.catalina.core.ContainerBase.addChildInternal（ContainerBase.java:866）
位于org.apache.catalina.core.ContainerBase.addChild（ContainerBase.java:842）
位于org.apache.catalina.core.StandardHost.addChild（StandardHost.java:615）
位于org.apache.catalina.startup.HostConfig.deployDescriptor（HostConfig.java:649）
位于org.apache.catalina.startup.HostConfig$DeployDescriptor.run（HostConfig.java:1581）
位于java.util.concurrent.Executors$RunnableAdapter.call（Executors.java:471）
位于java.util.concurrent.FutureTask$Sync.innerRun（FutureTask.java:334）
在java.util.concurrent.FutureTask.run（FutureTask.java:166）中
位于java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1146）
位于java.util.concurrent.ThreadPoolExecutor$Worker.run（ThreadPoolExecutor.java:615）
运行（Thread.java:679）
原因：com.liferay.portal.kernel.UpgradeException:com.liferay.portal.kernel.UpgradeException:org.postgresql.util.psqleException:错误：语法错误位于或接近“s”
职位：81
位于com.liferay.portal.kernel.UpgradeProcess.UpgradeProcess（UpgradeProcess.java:211）
在com.liferay.portal.upgrade.UpgradeProcessUtil.\u upgradeProcess（UpgradeProcessUtil.java:93）
在com.liferay.portal.upgrade.UpgradeProcessUtil.upgradeProcess（UpgradeProcessUtil.java:46）上
位于com.liferay.portal.events.StartupHelper.upgradeProcess（StartupHelper.java:81）
在com.liferay.portal.events.StartupHelperUtil.upgradeProcess（StartupHelperUtil.java:40）上
位于com.liferay.portal.tools.DBUpgrader.upgrade（DBUpgrader.java:119）
位于com.liferay.portal.events.StartupAction.doRun（StartupAction.java:144）
位于com.liferay.portal.events.StartupAction.run（StartupAction.java:52）
... 20多
由以下原因引起：com.liferay.portal.kernel.UpgradeException:org.postgresql.util.psqleException:错误：在“s”处或附近出现语法错误
职位：81
位于com.liferay.portal.kernel.UpgradeProcess.UpgradeProcess（UpgradeProcess.java:211）
位于com.liferay.portal.kernel.UpgradeProcess.UpgradeProcess（UpgradeProcess.java:225）
在com.liferay.portal.upgrade.UpgradeProcess_6_1_0.doUpgrade（UpgradeProcess_6_1_0.java:66）
位于com.liferay.portal.kernel.UpgradeProcess.UpgradeProcess（UpgradeProcess.java:208）
... 还有27个
原因：org.postgresql.util.PSQLException:错误：在“s”处或附近出现语法错误
职位：81
位于org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse（QueryExecutorImpl.java:2103）
位于org.postgresql.core.v3.QueryExecutorImpl.processResults（QueryExecutorImpl.java:1836）
位于org.postgresql.core.v3.QueryExecutorImpl.execute（QueryExecutorImpl.java:257）
位于org.postgresql.jdbc2.AbstractJdbc2Statement.execute（AbstractJdbc2Statement.java:512）
位于org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFla