diff options
Diffstat (limited to 'user_guide_src')
| -rw-r--r-- | user_guide_src/source/libraries/sessions.rst | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/user_guide_src/source/libraries/sessions.rst b/user_guide_src/source/libraries/sessions.rst index 2034ed2b0..9c9761bbf 100644 --- a/user_guide_src/source/libraries/sessions.rst +++ b/user_guide_src/source/libraries/sessions.rst @@ -598,7 +598,6 @@ For MySQL:: `ip_address` varchar(45) NOT NULL, `timestamp` int(10) unsigned DEFAULT 0 NOT NULL, `data` blob NOT NULL, - PRIMARY KEY (id), KEY `ci_sessions_timestamp` (`timestamp`) ); @@ -608,17 +607,23 @@ For PostgreSQL:: "id" varchar(40) NOT NULL, "ip_address" varchar(45) NOT NULL, "timestamp" bigint DEFAULT 0 NOT NULL, - "data" text DEFAULT '' NOT NULL, - PRIMARY KEY ("id") + "data" text DEFAULT '' NOT NULL ); CREATE INDEX "ci_sessions_timestamp" ON "ci_sessions" ("timestamp"); -However, if you want to turn on the *sess_match_ip* setting, you should -also do the following, after creating the table:: +You will also need to add a PRIMARY KEY **depending on your 'sess_match_ip' +setting**. The examples below work both on MySQL and PostgreSQL:: + + // When sess_match_ip = TRUE + ALTER TABLE ci_sessions ADD PRIMARY KEY (id, ip_address); + + // When sess_match_ip = FALSE + ALTER TABLE ci_sessions ADD PRIMARY KEY (id); + + // To drop a previously created primary key (use when changing the setting) + ALTER TABLE ci_sessions DROP PRIMARY KEY; - // Works both on MySQL and PostgreSQL - ALTER TABLE ci_sessions ADD CONSTRAINT ci_sessions_id_ip UNIQUE (id, ip_address); .. important:: Only MySQL and PostgreSQL databases are officially supported, due to lack of advisory locking mechanisms on other |