Index Via column of CachedGroupMembers

When we delete CachedGroupMember rows, we need to find and delete all
derived rows, by means of the Via column. Without the index, the search
could be quite slow.

Author: sunnavy

etc/schema.Oracle

@@ -204,6 +204,7 @@ CREATE TABLE CachedGroupMembers (
 CREATE INDEX DisGrouMem ON CachedGroupMembers (GroupId, MemberId, Disabled);
 CREATE INDEX CachedGroupMembers2 ON CachedGroupMembers (MemberId, GroupId, Disabled);
 CREATE INDEX CachedGroupMembers3 on CachedGroupMembers (MemberId, ImmediateParentId);
+CREATE INDEX CachedGroupMembers4 ON CachedGroupMembers (Via);
 
 
 CREATE SEQUENCE USERS_seq;

etc/schema.Pg

@@ -332,6 +332,7 @@ CREATE TABLE CachedGroupMembers (
 CREATE INDEX CachedGroupMembers2 on CachedGroupMembers (MemberId, GroupId, Disabled);
 CREATE INDEX DisGrouMem  on CachedGroupMembers (GroupId,MemberId,Disabled);
 CREATE INDEX CachedGroupMembers3  on CachedGroupMembers (MemberId,ImmediateParentId);
+CREATE INDEX CachedGroupMembers4 ON CachedGroupMembers (Via);
 
 
 

etc/schema.SQLite

@@ -233,6 +233,7 @@ create table CachedGroupMembers (
 CREATE INDEX CachedGroupMembers1 ON CachedGroupMembers (GroupId, MemberId, Disabled);
 CREATE INDEX CachedGroupMembers2 ON CachedGroupMembers (MemberId, GroupId, Disabled);
 CREATE INDEX CachedGroupMembers3 ON CachedGroupMembers (MemberId, ImmediateParentId);
+CREATE INDEX CachedGroupMembers4 ON CachedGroupMembers (Via);
 
 --- }}}
 

etc/schema.mysql

@@ -213,6 +213,7 @@ create table CachedGroupMembers (
 CREATE INDEX DisGrouMem  on CachedGroupMembers (GroupId,MemberId,Disabled);
 CREATE INDEX CachedGroupMembers2 on CachedGroupMembers (MemberId, GroupId, Disabled);
 CREATE INDEX CachedGroupMembers3 on CachedGroupMembers (MemberId, ImmediateParentId);
+CREATE INDEX CachedGroupMembers4 ON CachedGroupMembers (Via);
 
 
 

etc/upgrade/5.0.6/indexes

@@ -0,0 +1,9 @@
+use strict;
+use warnings;
+
+$RT::Handle->MakeSureIndexExists(
+    Table => 'CachedGroupMembers',
+    Columns => ['Via'],
+);
+
+1;