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  1. ,
    Expert tip

    Try downgrading PostgresSQL server to 9.5 or update your PostgresSQL driver to 9.4-1211 with the following command: <postgresql.version>9.4.1211</postgresql.version>

Solutions on the web

via XWiki.org JIRA by Dave Mangot, 1 year ago
ERROR: operator does not exist: boolean <> integer
via Google Groups by Zaya Kh, 6 months ago
ERROR: syntax error at or near "FROM"
via Google Groups by Gary Browne, 6 months ago
ERROR: syntax error at or near "FROM"
via Google Groups by Sean Carte, 6 months ago
via GitHub by singhdonald
, 2 years ago
ERROR: column layers_layer.id does not exist Where: PL/pgSQL function "geonode_authorize_layer" line 13 at SQL statement
via GitHub by fvanderbiest
, 2 years ago
ERROR: schema "downloadform" does not exist Position: 75
org.postgresql.util.PSQLException: ERROR: operator does not exist: boolean <> integer	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:437)	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:353)	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:257)	at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)	at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)	at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:186)	at org.hibernate.loader.Loader.getResultSet(Loader.java:1787)	at org.hibernate.loader.Loader.doQuery(Loader.java:674)	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)	at org.hibernate.loader.Loader.doList(Loader.java:2213)	at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)	at org.hibernate.loader.Loader.list(Loader.java:2099)	at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378)	at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)	at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)	at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)	at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)	at com.xpn.xwiki.store.hibernate.query.HqlQueryExecutor$1.doInHibernate(HqlQueryExecutor.java:89)	at com.xpn.xwiki.store.hibernate.query.HqlQueryExecutor$1.doInHibernate(HqlQueryExecutor.java:1)	at com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:1046)	at com.xpn.xwiki.store.XWikiHibernateBaseStore.executeRead(XWikiHibernateBaseStore.java:1082)	at com.xpn.xwiki.store.hibernate.query.HqlQueryExecutor.execute(HqlQueryExecutor.java:82)	at org.xwiki.query.internal.DefaultQueryExecutorManager.execute(DefaultQueryExecutorManager.java:54)	at org.xwiki.query.internal.DefaultQuery.execute(DefaultQuery.java:230)	at com.xpn.xwiki.XWiki.getSpaceDocsName(XWiki.java:5464)	at com.xpn.xwiki.plugin.packaging.Package.addAllWikiDocuments(Package.java:995)	at com.xpn.xwiki.plugin.packaging.PackageAPI.backupWiki(PackageAPI.java:214)	at com.xpn.xwiki.web.ExportAction.exportXAR(ExportAction.java:264)	at com.xpn.xwiki.web.ExportAction.render(ExportAction.java:57)	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:216)	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115)	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.xpn.xwiki.plugin.webdav.DavFilter.doFilter(DavFilter.java:68)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:96)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:287)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:112)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:754)	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:684)	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:876)	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)	at java.lang.Thread.run(Thread.java:595)