---
labels:
- 'Stage-Alpha'
- Deprecated
summary: 'XEP-0313: Message Archive Management using SQL'
...

**Note:** This module is unsupported and not up to date with the MAM
specification

Introduction
============

This is an old fork of mod\_mam with the purpose of figuring out and
testing an appropriate schema for future inclusion in prosodys
mod\_storage\_sql. That work is currently available in
mod\_storage\_sql2, pending merging with mod\_storage\_sql.

It talks SQL directly, bypassing prosodys storage layer.

It is no longer maintained and is unlikely to work with modern clients.

Details
=======

See [mod\_mam](mod_mam.html) for details.

Usage
=====

First copy the module to the prosody plugins directory.

Then add "mam\_sql" to your modules\_enabled list:

``` lua
modules_enabled = {
  -- ...
    "mam_sql",
  -- ...
}
```

You should probably run the SQL to create the archive table/indexes:

``` sql
CREATE TABLE `prosodyarchive` (
    `host` TEXT,
    `user` TEXT,
    `store` TEXT,
    `id` INTEGER PRIMARY KEY AUTOINCREMENT,
    `when` INTEGER,
    `with` TEXT,
    `resource` TEXT,
    `stanza` TEXT
    );
CREATE INDEX `hus` ON `prosodyarchive` (`host`, `user`, `store`);
CREATE INDEX `with` ON `prosodyarchive` (`with`);
CREATE INDEX `thetime` ON `prosodyarchive` (`when`);
```

(**NOTE**: I ran the following SQL to initialize the table/indexes on
MySQL):

``` sql
CREATE TABLE prosodyarchive (
  `host`     VARCHAR(1023) NOT NULL,
  `user`     VARCHAR(1023) NOT NULL,
  `store`    VARCHAR(1023) NOT NULL,
  `id`       INTEGER PRIMARY KEY AUTO_INCREMENT,
  `when`     INTEGER     NOT NULL,
  `with`     VARCHAR(2047) NOT NULL,
  `resource` VARCHAR(1023),
  `stanza`   TEXT        NOT NULL
);
CREATE INDEX hus ON prosodyarchive (host, user, store);
CREATE INDEX `with` ON prosodyarchive (`with`);
CREATE INDEX thetime ON prosodyarchive (`when`);
```

You may want to tweak the column sizes a bit; I did for my own purposes.

Configuration
=============

This module uses the same configuration settings that
[mod\_mam](mod_mam.html) does, in addition to the [SQL storage
settings](http://prosody.im/doc/modules/mod_storage_sql). You may also
name the SQL connection settings 'mam\_sql' if you want.

Compatibility
=============

  ------- ----------------------
  0.8     ?
  0.9     Works
  0.10    Use mod\_mam instead
  trunk   Use mod\_mam instead
  ------- ----------------------