- improvements to search indexing performance, espacially tidy() by adding a word_count column, the database update from b5 to next version will take quite a while on bigger databases, I also lowered the default common word threshold from 20 to 5 percent, big boards might want to use 3 or 2 percent, 20 was way too high

- added some keys to ACL tables, great improvement of auth query performance
- we will only add new language strings to install.php language file and won't modify any, if a language file is updated before phpBB is updated, the updater will not overwrite the user's language with english if install.php was modified


git-svn-id: file:///svn/phpbb/trunk@7182 89ea8834-ac86-4346-8a33-228a782c2dd0

phpBB/install/schemas/mssql_schema.sql

@@ -71,6 +71,9 @@ GO
 CREATE  INDEX [auth_opt_id] ON [phpbb_acl_groups]([auth_option_id]) ON [PRIMARY]
 GO
 
+CREATE  INDEX [auth_role_id] ON [phpbb_acl_groups]([auth_role_id]) ON [PRIMARY]
+GO
+
 
 /*
 	Table: 'phpbb_acl_options'
@@ -139,6 +142,9 @@ ALTER TABLE [phpbb_acl_roles_data] WITH NOCHECK ADD
 	)  ON [PRIMARY] 
 GO
 
+CREATE  INDEX [auth_option_id] ON [phpbb_acl_roles_data]([auth_option_id]) ON [PRIMARY]
+GO
+
 
 /*
 	Table: 'phpbb_acl_users'
@@ -158,6 +164,9 @@ GO
 CREATE  INDEX [auth_option_id] ON [phpbb_acl_users]([auth_option_id]) ON [PRIMARY]
 GO
 
+CREATE  INDEX [auth_role_id] ON [phpbb_acl_users]([auth_role_id]) ON [PRIMARY]
+GO
+
 
 /*
 	Table: 'phpbb_banlist'
@@ -1098,7 +1107,8 @@ GO
 CREATE TABLE [phpbb_search_wordlist] (
 	[word_id] [int] IDENTITY (1, 1) NOT NULL ,
 	[word_text] [varchar] (255) DEFAULT ('') NOT NULL ,
-	[word_common] [int] DEFAULT (0) NOT NULL 
+	[word_common] [int] DEFAULT (0) NOT NULL ,
+	[word_count] [int] DEFAULT (0) NOT NULL 
 ) ON [PRIMARY]
 GO
 
@@ -1112,6 +1122,9 @@ GO
 CREATE  UNIQUE  INDEX [wrd_txt] ON [phpbb_search_wordlist]([word_text]) ON [PRIMARY]
 GO
 
+CREATE  INDEX [wrd_cnt] ON [phpbb_search_wordlist]([word_count]) ON [PRIMARY]
+GO
+
 
 /*
 	Table: 'phpbb_search_wordmatch'