diff --git a/test/docker/README.md b/test/docker/README.md
index 24c675cab..b19321215 100644
--- a/test/docker/README.md
+++ b/test/docker/README.md
@@ -20,9 +20,7 @@ You can stop all the databases with CTRL-C.
 The following commands will create the necessary login, user and database, will grant rights on the database in MSSQL and create the ejabberd schema:
 
 ```
-docker cp test/docker/db/mssql/initdb/initdb_mssql.sql ejabberd-mssql:/
 docker exec ejabberd-mssql /opt/mssql-tools/bin/sqlcmd -U SA -P ejabberd_Test1 -S localhost -i /initdb_mssql.sql
-docker cp sql/mssql.sql ejabberd-mssql:/
 docker exec ejabberd-mssql /opt/mssql-tools/bin/sqlcmd -U SA -P ejabberd_Test1 -S localhost -i /mssql.sql
 ```
 
@@ -49,10 +47,10 @@ You can fully clean up the environment with:
 (cd test/docker; docker-compose down)
 ```
 
-If you want to clean the data, you can remove the data directories after the `docker-compose down` command:
+If you want to clean the data, you can remove the data volumes after the `docker-compose down` command:
 
 ```
-rm -rf test/docker/db/mysql/data
-rm -rf test/docker/db/postgres/data
-docker volume rm docker_mssqldata
+docker volume rm ejabberd-mysqldata
+docker volume rm ejabberd-mssqldata
+docker volume rm ejabberd-pgsqldata
 ```
diff --git a/test/docker/db/mysql/initdb/mysql.sql b/test/docker/db/mysql/initdb/mysql.sql
deleted file mode 100644
index a1ecc403a..000000000
--- a/test/docker/db/mysql/initdb/mysql.sql
+++ /dev/null
@@ -1,465 +0,0 @@
---
--- ejabberd, Copyright (C) 2002-2020   ProcessOne
---
--- This program 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 2 of the
--- License, or (at your option) any later version.
---
--- This program 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 this program; if not, write to the Free Software Foundation, Inc.,
--- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
---
-
-CREATE TABLE users (
-    username varchar(191) PRIMARY KEY,
-    password text NOT NULL,
-    serverkey varchar(64) NOT NULL DEFAULT '',
-    salt varchar(64) NOT NULL DEFAULT '',
-    iterationcount integer NOT NULL DEFAULT 0,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- Add support for SCRAM auth to a database created before ejabberd 16.03:
--- ALTER TABLE users ADD COLUMN serverkey varchar(64) NOT NULL DEFAULT '';
--- ALTER TABLE users ADD COLUMN salt varchar(64) NOT NULL DEFAULT '';
--- ALTER TABLE users ADD COLUMN iterationcount integer NOT NULL DEFAULT 0;
-
-CREATE TABLE last (
-    username varchar(191) PRIMARY KEY,
-    seconds text NOT NULL,
-    state text NOT NULl
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-
-CREATE TABLE rosterusers (
-    username varchar(191) NOT NULL,
-    jid varchar(191) NOT NULL,
-    nick text NOT NULL,
-    subscription character(1) NOT NULL,
-    ask character(1) NOT NULL,
-    askmessage text NOT NULL,
-    server character(1) NOT NULL,
-    subscribe text NOT NULL,
-    type text,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_rosteru_user_jid ON rosterusers(username(75), jid(75));
-CREATE INDEX i_rosteru_username ON rosterusers(username);
-CREATE INDEX i_rosteru_jid ON rosterusers(jid);
-
-CREATE TABLE rostergroups (
-    username varchar(191) NOT NULL,
-    jid varchar(191) NOT NULL,
-    grp text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE INDEX pk_rosterg_user_jid ON rostergroups(username(75), jid(75));
-
-CREATE TABLE sr_group (
-    name varchar(191) NOT NULL,
-    opts text NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE TABLE sr_user (
-    jid varchar(191) NOT NULL,
-    grp varchar(191) NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_sr_user_jid_group ON sr_user(jid(75), grp(75));
-CREATE INDEX i_sr_user_jid ON sr_user(jid);
-CREATE INDEX i_sr_user_grp ON sr_user(grp);
-
-CREATE TABLE spool (
-    username varchar(191) NOT NULL,
-    xml mediumtext NOT NULL,
-    seq BIGINT UNSIGNED NOT NULL AUTO_INCREMENT UNIQUE,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE INDEX i_despool USING BTREE ON spool(username);
-CREATE INDEX i_spool_created_at USING BTREE ON spool(created_at);
-
-CREATE TABLE archive (
-    username varchar(191) NOT NULL,
-    timestamp BIGINT UNSIGNED NOT NULL,
-    peer varchar(191) NOT NULL,
-    bare_peer varchar(191) NOT NULL,
-    xml mediumtext NOT NULL,
-    txt mediumtext,
-    id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT UNIQUE,
-    kind varchar(10),
-    nick varchar(191),
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE FULLTEXT INDEX i_text ON archive(txt);
-CREATE INDEX i_username_timestamp USING BTREE ON archive(username(191), timestamp);
-CREATE INDEX i_username_peer USING BTREE ON archive(username(191), peer(191));
-CREATE INDEX i_username_bare_peer USING BTREE ON archive(username(191), bare_peer(191));
-CREATE INDEX i_timestamp USING BTREE ON archive(timestamp);
-
-CREATE TABLE archive_prefs (
-    username varchar(191) NOT NULL PRIMARY KEY,
-    def text NOT NULL,
-    always text NOT NULL,
-    never text NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE TABLE vcard (
-    username varchar(191) PRIMARY KEY,
-    vcard mediumtext NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE TABLE vcard_search (
-    username varchar(191) NOT NULL,
-    lusername varchar(191) PRIMARY KEY,
-    fn text NOT NULL,
-    lfn varchar(191) NOT NULL,
-    family text NOT NULL,
-    lfamily varchar(191) NOT NULL,
-    given text NOT NULL,
-    lgiven varchar(191) NOT NULL,
-    middle text NOT NULL,
-    lmiddle varchar(191) NOT NULL,
-    nickname text NOT NULL,
-    lnickname varchar(191) NOT NULL,
-    bday text NOT NULL,
-    lbday varchar(191) NOT NULL,
-    ctry text NOT NULL,
-    lctry varchar(191) NOT NULL,
-    locality text NOT NULL,
-    llocality varchar(191) NOT NULL,
-    email text NOT NULL,
-    lemail varchar(191) NOT NULL,
-    orgname text NOT NULL,
-    lorgname varchar(191) NOT NULL,
-    orgunit text NOT NULL,
-    lorgunit varchar(191) NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE INDEX i_vcard_search_lfn       ON vcard_search(lfn);
-CREATE INDEX i_vcard_search_lfamily   ON vcard_search(lfamily);
-CREATE INDEX i_vcard_search_lgiven    ON vcard_search(lgiven);
-CREATE INDEX i_vcard_search_lmiddle   ON vcard_search(lmiddle);
-CREATE INDEX i_vcard_search_lnickname ON vcard_search(lnickname);
-CREATE INDEX i_vcard_search_lbday     ON vcard_search(lbday);
-CREATE INDEX i_vcard_search_lctry     ON vcard_search(lctry);
-CREATE INDEX i_vcard_search_llocality ON vcard_search(llocality);
-CREATE INDEX i_vcard_search_lemail    ON vcard_search(lemail);
-CREATE INDEX i_vcard_search_lorgname  ON vcard_search(lorgname);
-CREATE INDEX i_vcard_search_lorgunit  ON vcard_search(lorgunit);
-
-CREATE TABLE privacy_default_list (
-    username varchar(191) PRIMARY KEY,
-    name varchar(191) NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE TABLE privacy_list (
-    username varchar(191) NOT NULL,
-    name varchar(191) NOT NULL,
-    id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT UNIQUE,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE INDEX i_privacy_list_username  USING BTREE ON privacy_list(username);
-CREATE UNIQUE INDEX i_privacy_list_username_name USING BTREE ON privacy_list (username(75), name(75));
-
-CREATE TABLE privacy_list_data (
-    id bigint,
-    t character(1) NOT NULL,
-    value text NOT NULL,
-    action character(1) NOT NULL,
-    ord NUMERIC NOT NULL,
-    match_all boolean NOT NULL,
-    match_iq boolean NOT NULL,
-    match_message boolean NOT NULL,
-    match_presence_in boolean NOT NULL,
-    match_presence_out boolean NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE INDEX i_privacy_list_data_id ON privacy_list_data(id);
-
-CREATE TABLE private_storage (
-    username varchar(191) NOT NULL,
-    namespace varchar(191) NOT NULL,
-    data text NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE INDEX i_private_storage_username USING BTREE ON private_storage(username);
-CREATE UNIQUE INDEX i_private_storage_username_namespace USING BTREE ON private_storage(username(75), namespace(75));
-
--- Not tested in mysql
-CREATE TABLE roster_version (
-    username varchar(191) PRIMARY KEY,
-    version text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- To update from 1.x:
--- ALTER TABLE rosterusers ADD COLUMN askmessage text AFTER ask;
--- UPDATE rosterusers SET askmessage = '';
--- ALTER TABLE rosterusers ALTER COLUMN askmessage SET NOT NULL;
-
-CREATE TABLE pubsub_node (
-  host text NOT NULL,
-  node text NOT NULL,
-  parent VARCHAR(191) NOT NULL DEFAULT '',
-  plugin text NOT NULL,
-  nodeid bigint auto_increment primary key
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-CREATE INDEX i_pubsub_node_parent ON pubsub_node(parent(120));
-CREATE UNIQUE INDEX i_pubsub_node_tuple ON pubsub_node(host(71), node(120));
-
-CREATE TABLE pubsub_node_option (
-  nodeid bigint,
-  name text NOT NULL,
-  val text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-CREATE INDEX i_pubsub_node_option_nodeid ON pubsub_node_option(nodeid);
-ALTER TABLE `pubsub_node_option` ADD FOREIGN KEY (`nodeid`) REFERENCES `pubsub_node` (`nodeid`) ON DELETE CASCADE;
-
-CREATE TABLE pubsub_node_owner (
-  nodeid bigint,
-  owner text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-CREATE INDEX i_pubsub_node_owner_nodeid ON pubsub_node_owner(nodeid);
-ALTER TABLE `pubsub_node_owner` ADD FOREIGN KEY (`nodeid`) REFERENCES `pubsub_node` (`nodeid`) ON DELETE CASCADE;
-
-CREATE TABLE pubsub_state (
-  nodeid bigint,
-  jid text NOT NULL,
-  affiliation character(1),
-  subscriptions VARCHAR(191) NOT NULL DEFAULT '',
-  stateid bigint auto_increment primary key
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-CREATE INDEX i_pubsub_state_jid ON pubsub_state(jid(60));
-CREATE UNIQUE INDEX i_pubsub_state_tuple ON pubsub_state(nodeid, jid(60));
-ALTER TABLE `pubsub_state` ADD FOREIGN KEY (`nodeid`) REFERENCES `pubsub_node` (`nodeid`) ON DELETE CASCADE;
-
-CREATE TABLE pubsub_item (
-  nodeid bigint,
-  itemid text NOT NULL,
-  publisher text NOT NULL,
-  creation varchar(32) NOT NULL,
-  modification varchar(32) NOT NULL,
-  payload mediumtext NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-CREATE INDEX i_pubsub_item_itemid ON pubsub_item(itemid(36));
-CREATE UNIQUE INDEX i_pubsub_item_tuple ON pubsub_item(nodeid, itemid(36));
-ALTER TABLE `pubsub_item` ADD FOREIGN KEY (`nodeid`) REFERENCES `pubsub_node` (`nodeid`) ON DELETE CASCADE;
-
-CREATE TABLE pubsub_subscription_opt (
-  subid text NOT NULL,
-  opt_name varchar(32),
-  opt_value text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-CREATE UNIQUE INDEX i_pubsub_subscription_opt ON pubsub_subscription_opt(subid(32), opt_name(32));
-
-CREATE TABLE muc_room (
-    name text NOT NULL,
-    host text NOT NULL,
-    opts mediumtext NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_muc_room_name_host USING BTREE ON muc_room(name(75), host(75));
-
-CREATE TABLE muc_registered (
-    jid text NOT NULL,
-    host text NOT NULL,
-    nick text NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE INDEX i_muc_registered_nick USING BTREE ON muc_registered(nick(75));
-CREATE UNIQUE INDEX i_muc_registered_jid_host USING BTREE ON muc_registered(jid(75), host(75));
-
-CREATE TABLE muc_online_room (
-    name text NOT NULL,
-    host text NOT NULL,
-    node text NOT NULL,
-    pid text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_muc_online_room_name_host USING BTREE ON muc_online_room(name(75), host(75));
-
-CREATE TABLE muc_online_users (
-    username text NOT NULL,
-    server text NOT NULL,
-    resource text NOT NULL,
-    name text NOT NULL,
-    host text NOT NULL,
-    node text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_muc_online_users USING BTREE ON muc_online_users(username(75), server(75), resource(75), name(75), host(75));
-CREATE INDEX i_muc_online_users_us USING BTREE ON muc_online_users(username(75), server(75));
-
-CREATE TABLE muc_room_subscribers (
-   room varchar(191) NOT NULL,
-   host varchar(191) NOT NULL,
-   jid varchar(191) NOT NULL,
-   nick text NOT NULL,
-   nodes text NOT NULL,
-   created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
-  UNIQUE KEY i_muc_room_subscribers_host_room_jid (host, room, jid)
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE INDEX i_muc_room_subscribers_host_jid USING BTREE ON muc_room_subscribers(host, jid);
-
-CREATE TABLE motd (
-    username varchar(191) PRIMARY KEY,
-    xml text,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE TABLE caps_features (
-    node varchar(191) NOT NULL,
-    subnode varchar(191) NOT NULL,
-    feature text,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE INDEX i_caps_features_node_subnode ON caps_features(node(75), subnode(75));
-
-CREATE TABLE sm (
-    usec bigint NOT NULL,
-    pid text NOT NULL,
-    node text NOT NULL,
-    username varchar(191) NOT NULL,
-    resource varchar(191) NOT NULL,
-    priority text NOT NULL,
-    info text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_sid ON sm(usec, pid(75));
-CREATE INDEX i_node ON sm(node(75));
-CREATE INDEX i_username ON sm(username);
-
-CREATE TABLE oauth_token (
-    token varchar(191) NOT NULL PRIMARY KEY,
-    jid text NOT NULL,
-    scope text NOT NULL,
-    expire bigint NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE TABLE route (
-    domain text NOT NULL,
-    server_host text NOT NULL,
-    node text NOT NULL,
-    pid text NOT NULL,
-    local_hint text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_route ON route(domain(75), server_host(75), node(75), pid(75));
-CREATE INDEX i_route_domain ON route(domain(75));
-
-CREATE TABLE bosh (
-    sid text NOT NULL,
-    node text NOT NULL,
-    pid text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_bosh_sid ON bosh(sid(75));
-
-CREATE TABLE proxy65 (
-    sid text NOT NULL,
-    pid_t text NOT NULL,
-    pid_i text NOT NULL,
-    node_t text NOT NULL,
-    node_i text NOT NULL,
-    jid_i text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_proxy65_sid ON proxy65 (sid(191));
-CREATE INDEX i_proxy65_jid ON proxy65 (jid_i(191));
-
-CREATE TABLE push_session (
-    username text NOT NULL,
-    timestamp bigint NOT NULL,
-    service text NOT NULL,
-    node text NOT NULL,
-    xml text NOT NULL
-);
-
-CREATE UNIQUE INDEX i_push_usn ON push_session (username(191), service(191), node(191));
-CREATE UNIQUE INDEX i_push_ut ON push_session (username(191), timestamp);
-
-CREATE TABLE mix_channel (
-    channel text NOT NULL,
-    service text NOT NULL,
-    username text NOT NULL,
-    domain text NOT NULL,
-    jid text NOT NULL,
-    hidden boolean NOT NULL,
-    hmac_key text NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_mix_channel ON mix_channel (channel(191), service(191));
-CREATE INDEX i_mix_channel_serv ON mix_channel (service(191));
-
-CREATE TABLE mix_participant (
-    channel text NOT NULL,
-    service text NOT NULL,
-    username text NOT NULL,
-    domain text NOT NULL,
-    jid text NOT NULL,
-    id text NOT NULL,
-    nick text NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_mix_participant ON mix_participant (channel(191), service(191), username(191), domain(191));
-CREATE INDEX i_mix_participant_chan_serv ON mix_participant (channel(191), service(191));
-
-CREATE TABLE mix_subscription (
-    channel text NOT NULL,
-    service text NOT NULL,
-    username text NOT NULL,
-    domain text NOT NULL,
-    node text NOT NULL,
-    jid text NOT NULL
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_mix_subscription ON mix_subscription (channel(153), service(153), username(153), domain(153), node(153));
-CREATE INDEX i_mix_subscription_chan_serv_ud ON mix_subscription (channel(191), service(191), username(191), domain(191));
-CREATE INDEX i_mix_subscription_chan_serv_node ON mix_subscription (channel(191), service(191), node(191));
-CREATE INDEX i_mix_subscription_chan_serv ON mix_subscription (channel(191), service(191));
-
-CREATE TABLE mix_pam (
-    username text NOT NULL,
-    channel text NOT NULL,
-    service text NOT NULL,
-    id text NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-) ENGINE=InnoDB CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
-CREATE UNIQUE INDEX i_mix_pam ON mix_pam (username(191), channel(191), service(191));
-CREATE INDEX i_mix_pam_u ON mix_pam (username(191));
-
-CREATE TABLE mqtt_pub (
-    username varchar(191) NOT NULL,
-    resource varchar(191) NOT NULL,
-    topic text NOT NULL,
-    qos tinyint NOT NULL,
-    payload blob NOT NULL,
-    payload_format tinyint NOT NULL,
-    content_type text NOT NULL,
-    response_topic text NOT NULL,
-    correlation_data blob NOT NULL,
-    user_properties blob NOT NULL,
-    expiry int unsigned NOT NULL,
-    UNIQUE KEY i_mqtt_topic (topic(191))
-);
diff --git a/test/docker/db/postgres/initdb/pg.sql b/test/docker/db/postgres/initdb/pg.sql
deleted file mode 100644
index 10fd1804d..000000000
--- a/test/docker/db/postgres/initdb/pg.sql
+++ /dev/null
@@ -1,470 +0,0 @@
---
--- ejabberd, Copyright (C) 2002-2020   ProcessOne
---
--- This program 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 2 of the
--- License, or (at your option) any later version.
---
--- This program 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 this program; if not, write to the Free Software Foundation, Inc.,
--- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
---
-
-CREATE TABLE users (
-    username text PRIMARY KEY,
-    "password" text NOT NULL,
-    serverkey text NOT NULL DEFAULT '',
-    salt text NOT NULL DEFAULT '',
-    iterationcount integer NOT NULL DEFAULT 0,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
--- Add support for SCRAM auth to a database created before ejabberd 16.03:
--- ALTER TABLE users ADD COLUMN serverkey text NOT NULL DEFAULT '';
--- ALTER TABLE users ADD COLUMN salt text NOT NULL DEFAULT '';
--- ALTER TABLE users ADD COLUMN iterationcount integer NOT NULL DEFAULT 0;
-
-CREATE TABLE last (
-    username text PRIMARY KEY,
-    seconds text NOT NULL,
-    state text NOT NULL
-);
-
-
-CREATE TABLE rosterusers (
-    username text NOT NULL,
-    jid text NOT NULL,
-    nick text NOT NULL,
-    subscription character(1) NOT NULL,
-    ask character(1) NOT NULL,
-    askmessage text NOT NULL,
-    server character(1) NOT NULL,
-    subscribe text NOT NULL,
-    "type" text,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE UNIQUE INDEX i_rosteru_user_jid ON rosterusers USING btree (username, jid);
-CREATE INDEX i_rosteru_username ON rosterusers USING btree (username);
-CREATE INDEX i_rosteru_jid ON rosterusers USING btree (jid);
-
-
-CREATE TABLE rostergroups (
-    username text NOT NULL,
-    jid text NOT NULL,
-    grp text NOT NULL
-);
-
-CREATE INDEX pk_rosterg_user_jid ON rostergroups USING btree (username, jid);
-
-CREATE TABLE sr_group (
-    name text NOT NULL,
-    opts text NOT NULL,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE TABLE sr_user (
-    jid text NOT NULL,
-    grp text NOT NULL,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE UNIQUE INDEX i_sr_user_jid_grp ON sr_user USING btree (jid, grp);
-CREATE INDEX i_sr_user_jid ON sr_user USING btree (jid);
-CREATE INDEX i_sr_user_grp ON sr_user USING btree (grp);
-
-CREATE TABLE spool (
-    username text NOT NULL,
-    xml text NOT NULL,
-    seq SERIAL,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE INDEX i_despool ON spool USING btree (username);
-
-CREATE TABLE archive (
-    username text NOT NULL,
-    timestamp BIGINT NOT NULL,
-    peer text NOT NULL,
-    bare_peer text NOT NULL,
-    xml text NOT NULL,
-    txt text,
-    id SERIAL,
-    kind text,
-    nick text,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE INDEX i_username_timestamp ON archive USING btree (username, timestamp);
-CREATE INDEX i_username_peer ON archive USING btree (username, peer);
-CREATE INDEX i_username_bare_peer ON archive USING btree (username, bare_peer);
-CREATE INDEX i_timestamp ON archive USING btree (timestamp);
-
-CREATE TABLE archive_prefs (
-    username text NOT NULL PRIMARY KEY,
-    def text NOT NULL,
-    always text NOT NULL,
-    never text NOT NULL,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE TABLE vcard (
-    username text PRIMARY KEY,
-    vcard text NOT NULL,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE TABLE vcard_search (
-    username text NOT NULL,
-    lusername text PRIMARY KEY,
-    fn text NOT NULL,
-    lfn text NOT NULL,
-    family text NOT NULL,
-    lfamily text NOT NULL,
-    given text NOT NULL,
-    lgiven text NOT NULL,
-    middle text NOT NULL,
-    lmiddle text NOT NULL,
-    nickname text NOT NULL,
-    lnickname text NOT NULL,
-    bday text NOT NULL,
-    lbday text NOT NULL,
-    ctry text NOT NULL,
-    lctry text NOT NULL,
-    locality text NOT NULL,
-    llocality text NOT NULL,
-    email text NOT NULL,
-    lemail text NOT NULL,
-    orgname text NOT NULL,
-    lorgname text NOT NULL,
-    orgunit text NOT NULL,
-    lorgunit text NOT NULL
-);
-
-CREATE INDEX i_vcard_search_lfn       ON vcard_search(lfn);
-CREATE INDEX i_vcard_search_lfamily   ON vcard_search(lfamily);
-CREATE INDEX i_vcard_search_lgiven    ON vcard_search(lgiven);
-CREATE INDEX i_vcard_search_lmiddle   ON vcard_search(lmiddle);
-CREATE INDEX i_vcard_search_lnickname ON vcard_search(lnickname);
-CREATE INDEX i_vcard_search_lbday     ON vcard_search(lbday);
-CREATE INDEX i_vcard_search_lctry     ON vcard_search(lctry);
-CREATE INDEX i_vcard_search_llocality ON vcard_search(llocality);
-CREATE INDEX i_vcard_search_lemail    ON vcard_search(lemail);
-CREATE INDEX i_vcard_search_lorgname  ON vcard_search(lorgname);
-CREATE INDEX i_vcard_search_lorgunit  ON vcard_search(lorgunit);
-
-CREATE TABLE privacy_default_list (
-    username text PRIMARY KEY,
-    name text NOT NULL
-);
-
-CREATE TABLE privacy_list (
-    username text NOT NULL,
-    name text NOT NULL,
-    id SERIAL UNIQUE,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE INDEX i_privacy_list_username ON privacy_list USING btree (username);
-CREATE UNIQUE INDEX i_privacy_list_username_name ON privacy_list USING btree (username, name);
-
-CREATE TABLE privacy_list_data (
-    id bigint REFERENCES privacy_list(id) ON DELETE CASCADE,
-    t character(1) NOT NULL,
-    value text NOT NULL,
-    action character(1) NOT NULL,
-    ord NUMERIC NOT NULL,
-    match_all boolean NOT NULL,
-    match_iq boolean NOT NULL,
-    match_message boolean NOT NULL,
-    match_presence_in boolean NOT NULL,
-    match_presence_out boolean NOT NULL
-);
-
-CREATE INDEX i_privacy_list_data_id ON privacy_list_data USING btree (id);
-
-CREATE TABLE private_storage (
-    username text NOT NULL,
-    namespace text NOT NULL,
-    data text NOT NULL,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE INDEX i_private_storage_username ON private_storage USING btree (username);
-CREATE UNIQUE INDEX i_private_storage_username_namespace ON private_storage USING btree (username, namespace);
-
-
-CREATE TABLE roster_version (
-    username text PRIMARY KEY,
-    version text NOT NULL
-);
-
--- To update from 0.9.8:
--- CREATE SEQUENCE spool_seq_seq;
--- ALTER TABLE spool ADD COLUMN seq integer;
--- ALTER TABLE spool ALTER COLUMN seq SET DEFAULT nextval('spool_seq_seq');
--- UPDATE spool SET seq = DEFAULT;
--- ALTER TABLE spool ALTER COLUMN seq SET NOT NULL;
-
--- To update from 1.x:
--- ALTER TABLE rosterusers ADD COLUMN askmessage text;
--- UPDATE rosterusers SET askmessage = '';
--- ALTER TABLE rosterusers ALTER COLUMN askmessage SET NOT NULL;
-
-CREATE TABLE pubsub_node (
-  host text NOT NULL,
-  node text NOT NULL,
-  parent text NOT NULL DEFAULT '',
-  plugin text NOT NULL,
-  nodeid SERIAL UNIQUE
-);
-CREATE INDEX i_pubsub_node_parent ON pubsub_node USING btree (parent);
-CREATE UNIQUE INDEX i_pubsub_node_tuple ON pubsub_node USING btree (host, node);
-
-CREATE TABLE pubsub_node_option (
-  nodeid bigint REFERENCES pubsub_node(nodeid) ON DELETE CASCADE,
-  name text NOT NULL,
-  val text NOT NULL
-);
-CREATE INDEX i_pubsub_node_option_nodeid ON pubsub_node_option USING btree (nodeid);
-
-CREATE TABLE pubsub_node_owner (
-  nodeid bigint REFERENCES pubsub_node(nodeid) ON DELETE CASCADE,
-  owner text NOT NULL
-);
-CREATE INDEX i_pubsub_node_owner_nodeid ON pubsub_node_owner USING btree (nodeid);
-
-CREATE TABLE pubsub_state (
-  nodeid bigint REFERENCES pubsub_node(nodeid) ON DELETE CASCADE,
-  jid text NOT NULL,
-  affiliation character(1),
-  subscriptions text NOT NULL DEFAULT '',
-  stateid SERIAL UNIQUE
-);
-CREATE INDEX i_pubsub_state_jid ON pubsub_state USING btree (jid);
-CREATE UNIQUE INDEX i_pubsub_state_tuple ON pubsub_state USING btree (nodeid, jid);
-
-CREATE TABLE pubsub_item (
-  nodeid bigint REFERENCES pubsub_node(nodeid) ON DELETE CASCADE,
-  itemid text NOT NULL,
-  publisher text NOT NULL,
-  creation varchar(32) NOT NULL,
-  modification varchar(32) NOT NULL,
-  payload text NOT NULL DEFAULT ''
-);
-CREATE INDEX i_pubsub_item_itemid ON pubsub_item USING btree (itemid);
-CREATE UNIQUE INDEX i_pubsub_item_tuple ON pubsub_item USING btree (nodeid, itemid);
-
-CREATE TABLE pubsub_subscription_opt (
-  subid text NOT NULL,
-  opt_name varchar(32),
-  opt_value text NOT NULL
-);
-CREATE UNIQUE INDEX i_pubsub_subscription_opt ON pubsub_subscription_opt USING btree (subid, opt_name);
-
-CREATE TABLE muc_room (
-    name text NOT NULL,
-    host text NOT NULL,
-    opts text NOT NULL,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE UNIQUE INDEX i_muc_room_name_host ON muc_room USING btree (name, host);
-
-CREATE TABLE muc_registered (
-    jid text NOT NULL,
-    host text NOT NULL,
-    nick text NOT NULL,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE INDEX i_muc_registered_nick ON muc_registered USING btree (nick);
-CREATE UNIQUE INDEX i_muc_registered_jid_host ON muc_registered USING btree (jid, host);
-
-CREATE TABLE muc_online_room (
-    name text NOT NULL,
-    host text NOT NULL,
-    node text NOT NULL,
-    pid text NOT NULL
-);
-
-CREATE UNIQUE INDEX i_muc_online_room_name_host ON muc_online_room USING btree (name, host);
-
-CREATE TABLE muc_online_users (
-    username text NOT NULL,
-    server text NOT NULL,
-    resource text NOT NULL,
-    name text NOT NULL,
-    host text NOT NULL,
-    node text NOT NULL
-);
-
-CREATE UNIQUE INDEX i_muc_online_users ON muc_online_users USING btree (username, server, resource, name, host);
-CREATE INDEX i_muc_online_users_us ON muc_online_users USING btree (username, server);
-
-CREATE TABLE muc_room_subscribers (
-   room text NOT NULL,
-   host text NOT NULL,
-   jid text NOT NULL,
-   nick text NOT NULL,
-   nodes text NOT NULL,
-   created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE INDEX i_muc_room_subscribers_host_jid ON muc_room_subscribers USING btree (host, jid);
-CREATE UNIQUE INDEX i_muc_room_subscribers_host_room_jid ON muc_room_subscribers USING btree (host, room, jid);
-
-CREATE TABLE motd (
-    username text PRIMARY KEY,
-    xml text,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE TABLE caps_features (
-    node text NOT NULL,
-    subnode text NOT NULL,
-    feature text,
-    created_at TIMESTAMP NOT NULL DEFAULT now()
-);
-
-CREATE INDEX i_caps_features_node_subnode ON caps_features USING btree (node, subnode);
-
-CREATE TABLE sm (
-    usec bigint NOT NULL,
-    pid text NOT NULL,
-    node text NOT NULL,
-    username text NOT NULL,
-    resource text NOT NULL,
-    priority text NOT NULL,
-    info text NOT NULL
-);
-
-CREATE UNIQUE INDEX i_sm_sid ON sm USING btree (usec, pid);
-CREATE INDEX i_sm_node ON sm USING btree (node);
-CREATE INDEX i_sm_username ON sm USING btree (username);
-
-CREATE TABLE oauth_token (
-    token text NOT NULL,
-    jid text NOT NULL,
-    scope text NOT NULL,
-    expire bigint NOT NULL
-);
-
-CREATE UNIQUE INDEX i_oauth_token_token ON oauth_token USING btree (token);
-
-CREATE TABLE route (
-    domain text NOT NULL,
-    server_host text NOT NULL,
-    node text NOT NULL,
-    pid text NOT NULL,
-    local_hint text NOT NULL
-);
-
-CREATE UNIQUE INDEX i_route ON route USING btree (domain, server_host, node, pid);
-CREATE INDEX i_route_domain ON route USING btree (domain);
-
-CREATE TABLE bosh (
-    sid text NOT NULL,
-    node text NOT NULL,
-    pid text NOT NULL
-);
-
-CREATE UNIQUE INDEX i_bosh_sid ON bosh USING btree (sid);
-
-CREATE TABLE proxy65 (
-    sid text NOT NULL,
-    pid_t text NOT NULL,
-    pid_i text NOT NULL,
-    node_t text NOT NULL,
-    node_i text NOT NULL,
-    jid_i text NOT NULL
-);
-
-CREATE UNIQUE INDEX i_proxy65_sid ON proxy65 USING btree (sid);
-CREATE INDEX i_proxy65_jid ON proxy65 USING btree (jid_i);
-
-CREATE TABLE push_session (
-    username text NOT NULL,
-    timestamp bigint NOT NULL,
-    service text NOT NULL,
-    node text NOT NULL,
-    xml text NOT NULL
-);
-
-CREATE UNIQUE INDEX i_push_usn ON push_session USING btree (username, service, node);
-CREATE UNIQUE INDEX i_push_ut ON push_session USING btree (username, timestamp);
-
-CREATE TABLE mix_channel (
-    channel text NOT NULL,
-    service text NOT NULL,
-    username text NOT NULL,
-    domain text NOT NULL,
-    jid text NOT NULL,
-    hidden boolean NOT NULL,
-    hmac_key text NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-);
-
-CREATE UNIQUE INDEX i_mix_channel ON mix_channel (channel, service);
-CREATE INDEX i_mix_channel_serv ON mix_channel (service);
-
-CREATE TABLE mix_participant (
-    channel text NOT NULL,
-    service text NOT NULL,
-    username text NOT NULL,
-    domain text NOT NULL,
-    jid text NOT NULL,
-    id text NOT NULL,
-    nick text NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-);
-
-CREATE UNIQUE INDEX i_mix_participant ON mix_participant (channel, service, username, domain);
-CREATE INDEX i_mix_participant_chan_serv ON mix_participant (channel, service);
-
-CREATE TABLE mix_subscription (
-    channel text NOT NULL,
-    service text NOT NULL,
-    username text NOT NULL,
-    domain text NOT NULL,
-    node text NOT NULL,
-    jid text NOT NULL
-);
-
-CREATE UNIQUE INDEX i_mix_subscription ON mix_subscription (channel, service, username, domain, node);
-CREATE INDEX i_mix_subscription_chan_serv_ud ON mix_subscription (channel, service, username, domain);
-CREATE INDEX i_mix_subscription_chan_serv_node ON mix_subscription (channel, service, node);
-CREATE INDEX i_mix_subscription_chan_serv ON mix_subscription (channel, service);
-
-CREATE TABLE mix_pam (
-    username text NOT NULL,
-    channel text NOT NULL,
-    service text NOT NULL,
-    id text NOT NULL,
-    created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
-);
-
-CREATE UNIQUE INDEX i_mix_pam ON mix_pam (username, channel, service);
-CREATE INDEX i_mix_pam_us ON mix_pam (username);
-
-CREATE TABLE mqtt_pub (
-    username text NOT NULL,
-    resource text NOT NULL,
-    topic text NOT NULL,
-    qos smallint NOT NULL,
-    payload bytea NOT NULL,
-    payload_format smallint NOT NULL,
-    content_type text NOT NULL,
-    response_topic text NOT NULL,
-    correlation_data bytea NOT NULL,
-    user_properties bytea NOT NULL,
-    expiry bigint NOT NULL
-);
-
-CREATE UNIQUE INDEX i_mqtt_topic ON mqtt_pub (topic);
diff --git a/test/docker/docker-compose.yml b/test/docker/docker-compose.yml
index c6b800dad..7ce610eab 100644
--- a/test/docker/docker-compose.yml
+++ b/test/docker/docker-compose.yml
@@ -5,8 +5,8 @@ services:
     image: mysql:latest
     container_name: ejabberd-mysql
     volumes:
-      - ./db/mysql/data:/var/lib/mysql
-      - ./db/mysql/initdb:/docker-entrypoint-initdb.d:ro
+      - mysqldata:/var/lib/mysql
+      - ../../sql/mysql.sql:/docker-entrypoint-initdb.d/mysql.sql:ro
     command: --default-authentication-plugin=mysql_native_password
     restart: always
     ports:
@@ -22,6 +22,8 @@ services:
     container_name: ejabberd-mssql
     volumes:
       - mssqldata:/var/opt/mssql
+      - ./db/mssql/initdb/initdb_mssql.sql:/initdb_mssql.sql:ro
+      - ../../sql/mssql.sql:/mssql.sql:ro
     restart: always
     ports:
       - 1433:1433
@@ -33,8 +35,8 @@ services:
     image: postgres:latest
     container_name: ejabberd-postgres
     volumes:
-      - ./db/postgres/data:/var/lib/postgresql/data
-      - ./db/postgres/initdb:/docker-entrypoint-initdb.d:ro
+      - pgsqldata:/var/lib/postgresql/data
+      - ../../sql/pg.sql:/docker-entrypoint-initdb.d/pg.sql:ro
     ports:
       - 5432:5432
     environment:
@@ -49,4 +51,9 @@ services:
       - 6379:6379
 
 volumes:
+    mysqldata:
+      name: ejabberd-mysqldata
     mssqldata:
+      name: ejabberd-mssqldata
+    pgsqldata:
+      name: ejabberd-pgsqldata