Fixes #8001: create an index for detection of eventlog version

rudder-core/src/main/resources/Migration/dbMigration-2.11-2.11-index-eventlog.sql

@@ -0,0 +1,43 @@
+/*
+*************************************************************************************
+* Copyright 2016 Normation SAS
+*************************************************************************************
+*
+* This file is part of Rudder.
+* 
+* Rudder is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+* 
+* In accordance with the terms of section 7 (7. Additional Terms.) of
+* the GNU General Public License version 3, the copyright holders add
+* the following Additional permissions:
+* Notwithstanding to the terms of section 5 (5. Conveying Modified Source
+* Versions) and 6 (6. Conveying Non-Source Forms.) of the GNU General
+* Public License version 3, when you create a Related Module, this
+* Related Module is not considered as a part of the work and may be
+* distributed under the license agreement of your choice.
+* A "Related Module" means a set of sources files including their
+* documentation that, without modification of the Source Code, enables
+* supplementary functions or services in addition to those offered by
+* the Software.
+* 
+* Rudder is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+* 
+* You should have received a copy of the GNU General Public License
+* along with Rudder.  If not, see <http://www.gnu.org/licenses/>.
+
+*
+*************************************************************************************
+*/
+
+
+-- Migration script to create index on fileformat of eventlogs
+-- this may take several minutes on very large database (more than 100 000 eventlogs)
+
+CREATE INDEX eventlog_fileFormat_idx ON eventlog (((((xpath('/entry//@fileFormat',data))[1])::text)));
+

rudder-core/src/main/resources/reportsSchema.sql

@@ -139,7 +139,7 @@ CREATE TABLE EventLog (
 
 create index eventType_idx on EventLog (eventType);
 create index creationDate_idx on EventLog (creationDate);
-
+CREATE INDEX eventlog_fileFormat_idx ON eventlog (((((xpath('/entry//@fileFormat',data))[1])::text)));
 
 
 create sequence GroupsId START 101;