Update schema to work with mariadb

16 files changed, 224 insertions, 256 deletions

diff --git a/synapse/storage/schema/delta/12/v12.sql b/synapse/storage/schema/delta/12/v12.sql
index b87ef1fe79..fbe8486b96 100644
--- a/synapse/storage/schema/delta/12/v12.sql
+++ b/synapse/storage/schema/delta/12/v12.sql
@@ -14,54 +14,50 @@
  */
 
 CREATE TABLE IF NOT EXISTS rejections(
-    event_id TEXT NOT NULL,
-    reason TEXT NOT NULL,
-    last_check TEXT NOT NULL,
-    CONSTRAINT ev_id UNIQUE (event_id) ON CONFLICT REPLACE
+    event_id VARCHAR(255) NOT NULL,
+    reason VARCHAR(255) NOT NULL,
+    last_check VARCHAR(255) NOT NULL,
+    UNIQUE (event_id)
 );
 
 -- Push notification endpoints that users have configured
 CREATE TABLE IF NOT EXISTS pushers (
-  id INTEGER PRIMARY KEY AUTOINCREMENT,
-  user_name TEXT NOT NULL,
-  profile_tag varchar(32) NOT NULL,
-  kind varchar(8) NOT NULL,
-  app_id varchar(64) NOT NULL,
-  app_display_name varchar(64) NOT NULL,
-  device_display_name varchar(128) NOT NULL,
-  pushkey blob NOT NULL,
+  id INTEGER PRIMARY KEY,
+  user_name VARCHAR(255) NOT NULL,
+  profile_tag VARCHAR(32) NOT NULL,
+  kind VARCHAR(8) NOT NULL,
+  app_id VARCHAR(64) NOT NULL,
+  app_display_name VARCHAR(64) NOT NULL,
+  device_display_name VARCHAR(128) NOT NULL,
+  pushkey VARBINARY(512) NOT NULL,
   ts BIGINT NOT NULL,
-  lang varchar(8),
-  data blob,
+  lang VARCHAR(8),
+  data BLOB,
   last_token TEXT,
   last_success BIGINT,
   failing_since BIGINT,
-  FOREIGN KEY(user_name) REFERENCES users(name),
   UNIQUE (app_id, pushkey)
 );
 
 CREATE TABLE IF NOT EXISTS push_rules (
-  id INTEGER PRIMARY KEY AUTOINCREMENT,
-  user_name TEXT NOT NULL,
-  rule_id TEXT NOT NULL,
+  id INTEGER PRIMARY KEY,
+  user_name VARCHAR(255) NOT NULL,
+  rule_id VARCHAR(255) NOT NULL,
   priority_class TINYINT NOT NULL,
   priority INTEGER NOT NULL DEFAULT 0,
-  conditions TEXT NOT NULL,
-  actions TEXT NOT NULL,
+  conditions VARCHAR(255) NOT NULL,
+  actions VARCHAR(255) NOT NULL,
   UNIQUE(user_name, rule_id)
 );
 
 CREATE INDEX IF NOT EXISTS push_rules_user_name on push_rules (user_name);
 
 CREATE TABLE IF NOT EXISTS user_filters(
-  user_id TEXT,
+  user_id VARCHAR(255),
   filter_id INTEGER,
-  filter_json TEXT,
-  FOREIGN KEY(user_id) REFERENCES users(id)
+  filter_json BLOB
 );
 
 CREATE INDEX IF NOT EXISTS user_filters_by_user_id_filter_id ON user_filters(
-  user_id, filter_id
+    user_id, filter_id
 );
-
-PRAGMA user_version = 12;
diff --git a/synapse/storage/schema/delta/13/v13.sql b/synapse/storage/schema/delta/13/v13.sql
index e491ad5aec..68d4ebd896 100644
--- a/synapse/storage/schema/delta/13/v13.sql
+++ b/synapse/storage/schema/delta/13/v13.sql
@@ -14,21 +14,18 @@
  */
 
 CREATE TABLE IF NOT EXISTS application_services(
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
-    url TEXT,
-    token TEXT,
-    hs_token TEXT,
-    sender TEXT,
-    UNIQUE(token) ON CONFLICT ROLLBACK
+    id INTEGER PRIMARY KEY,
+    url VARCHAR(255),
+    token VARCHAR(255),
+    hs_token VARCHAR(255),
+    sender VARCHAR(255),
+    UNIQUE(token)
 );
 
 CREATE TABLE IF NOT EXISTS application_services_regex(
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    id INTEGER PRIMARY KEY,
     as_id INTEGER NOT NULL,
     namespace INTEGER,  /* enum[room_id|room_alias|user_id] */
-    regex TEXT,
+    regex VARCHAR(255),
     FOREIGN KEY(as_id) REFERENCES application_services(id)
 );
-
-
-
diff --git a/synapse/storage/schema/delta/14/v14.sql b/synapse/storage/schema/delta/14/v14.sql
index 0212726448..2b50adbd61 100644
--- a/synapse/storage/schema/delta/14/v14.sql
+++ b/synapse/storage/schema/delta/14/v14.sql
@@ -1,7 +1,7 @@
 CREATE TABLE IF NOT EXISTS push_rules_enable (
-  id INTEGER PRIMARY KEY AUTOINCREMENT,
-  user_name TEXT NOT NULL,
-  rule_id TEXT NOT NULL,
+  id INTEGER PRIMARY KEY,
+  user_name VARCHAR(255) NOT NULL,
+  rule_id VARCHAR(255) NOT NULL,
   enabled TINYINT,
   UNIQUE(user_name, rule_id)
 );
diff --git a/synapse/storage/schema/full_schemas/11/event_edges.sql b/synapse/storage/schema/full_schemas/11/event_edges.sql
index 1e766d6db2..823653f2e9 100644
--- a/synapse/storage/schema/full_schemas/11/event_edges.sql
+++ b/synapse/storage/schema/full_schemas/11/event_edges.sql
@@ -14,9 +14,9 @@
  */
 
 CREATE TABLE IF NOT EXISTS event_forward_extremities(
-    event_id TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    CONSTRAINT uniqueness UNIQUE (event_id, room_id) ON CONFLICT REPLACE
+    event_id VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    UNIQUE (event_id, room_id)
 );
 
 CREATE INDEX IF NOT EXISTS ev_extrem_room ON event_forward_extremities(room_id);
@@ -24,9 +24,9 @@ CREATE INDEX IF NOT EXISTS ev_extrem_id ON event_forward_extremities(event_id);
 
 
 CREATE TABLE IF NOT EXISTS event_backward_extremities(
-    event_id TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    CONSTRAINT uniqueness UNIQUE (event_id, room_id) ON CONFLICT REPLACE
+    event_id VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    UNIQUE (event_id, room_id)
 );
 
 CREATE INDEX IF NOT EXISTS ev_b_extrem_room ON event_backward_extremities(room_id);
@@ -34,11 +34,11 @@ CREATE INDEX IF NOT EXISTS ev_b_extrem_id ON event_backward_extremities(event_id
 
 
 CREATE TABLE IF NOT EXISTS event_edges(
-    event_id TEXT NOT NULL,
-    prev_event_id TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    is_state INTEGER NOT NULL,
-    CONSTRAINT uniqueness UNIQUE (event_id, prev_event_id, room_id, is_state)
+    event_id VARCHAR(255) NOT NULL,
+    prev_event_id VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    is_state BOOL NOT NULL,
+    UNIQUE (event_id, prev_event_id, room_id, is_state)
 );
 
 CREATE INDEX IF NOT EXISTS ev_edges_id ON event_edges(event_id);
@@ -46,30 +46,30 @@ CREATE INDEX IF NOT EXISTS ev_edges_prev_id ON event_edges(prev_event_id);
 
 
 CREATE TABLE IF NOT EXISTS room_depth(
-    room_id TEXT NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
     min_depth INTEGER NOT NULL,
-    CONSTRAINT uniqueness UNIQUE (room_id)
+    UNIQUE (room_id)
 );
 
 CREATE INDEX IF NOT EXISTS room_depth_room ON room_depth(room_id);
 
 
 create TABLE IF NOT EXISTS event_destinations(
-    event_id TEXT NOT NULL,
-    destination TEXT NOT NULL,
+    event_id VARCHAR(255) NOT NULL,
+    destination VARCHAR(255) NOT NULL,
     delivered_ts INTEGER DEFAULT 0, -- or 0 if not delivered
-    CONSTRAINT uniqueness UNIQUE (event_id, destination) ON CONFLICT REPLACE
+    UNIQUE (event_id, destination)
 );
 
 CREATE INDEX IF NOT EXISTS event_destinations_id ON event_destinations(event_id);
 
 
 CREATE TABLE IF NOT EXISTS state_forward_extremities(
-    event_id TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    type TEXT NOT NULL,
-    state_key TEXT NOT NULL,
-    CONSTRAINT uniqueness UNIQUE (event_id, room_id) ON CONFLICT REPLACE
+    event_id VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    type VARCHAR(255) NOT NULL,
+    state_key VARCHAR(255) NOT NULL,
+    UNIQUE (event_id, room_id)
 );
 
 CREATE INDEX IF NOT EXISTS st_extrem_keys ON state_forward_extremities(
@@ -79,11 +79,11 @@ CREATE INDEX IF NOT EXISTS st_extrem_id ON state_forward_extremities(event_id);
 
 
 CREATE TABLE IF NOT EXISTS event_auth(
-    event_id TEXT NOT NULL,
-    auth_id TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    CONSTRAINT uniqueness UNIQUE (event_id, auth_id, room_id)
+    event_id VARCHAR(255) NOT NULL,
+    auth_id VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    UNIQUE (event_id, auth_id, room_id)
 );
 
 CREATE INDEX IF NOT EXISTS evauth_edges_id ON event_auth(event_id);
-CREATE INDEX IF NOT EXISTS evauth_edges_auth_id ON event_auth(auth_id);
\ No newline at end of file
+CREATE INDEX IF NOT EXISTS evauth_edges_auth_id ON event_auth(auth_id);
diff --git a/synapse/storage/schema/full_schemas/11/event_signatures.sql b/synapse/storage/schema/full_schemas/11/event_signatures.sql
index c28c39c48a..a7c3acf775 100644
--- a/synapse/storage/schema/full_schemas/11/event_signatures.sql
+++ b/synapse/storage/schema/full_schemas/11/event_signatures.sql
@@ -14,52 +14,42 @@
  */
 
 CREATE TABLE IF NOT EXISTS event_content_hashes (
-    event_id TEXT,
-    algorithm TEXT,
+    event_id VARCHAR(255),
+    algorithm VARCHAR(255),
     hash BLOB,
-    CONSTRAINT uniqueness UNIQUE (event_id, algorithm)
+    UNIQUE (event_id, algorithm)
 );
 
-CREATE INDEX IF NOT EXISTS event_content_hashes_id ON event_content_hashes(
-    event_id
-);
+CREATE INDEX IF NOT EXISTS event_content_hashes_id ON event_content_hashes(event_id);
 
 
 CREATE TABLE IF NOT EXISTS event_reference_hashes (
-    event_id TEXT,
-    algorithm TEXT,
+    event_id VARCHAR(255),
+    algorithm VARCHAR(255),
     hash BLOB,
-    CONSTRAINT uniqueness UNIQUE (event_id, algorithm)
+    UNIQUE (event_id, algorithm)
 );
 
-CREATE INDEX IF NOT EXISTS event_reference_hashes_id ON event_reference_hashes (
-    event_id
-);
+CREATE INDEX IF NOT EXISTS event_reference_hashes_id ON event_reference_hashes(event_id);
 
 
 CREATE TABLE IF NOT EXISTS event_signatures (
-    event_id TEXT,
-    signature_name TEXT,
-    key_id TEXT,
+    event_id VARCHAR(255),
+    signature_name VARCHAR(255),
+    key_id VARCHAR(255),
     signature BLOB,
-    CONSTRAINT uniqueness UNIQUE (event_id, signature_name, key_id)
+    UNIQUE (event_id, signature_name, key_id)
 );
 
-CREATE INDEX IF NOT EXISTS event_signatures_id ON event_signatures (
-    event_id
-);
+CREATE INDEX IF NOT EXISTS event_signatures_id ON event_signatures(event_id);
 
 
 CREATE TABLE IF NOT EXISTS event_edge_hashes(
-    event_id TEXT,
-    prev_event_id TEXT,
-    algorithm TEXT,
+    event_id VARCHAR(255),
+    prev_event_id VARCHAR(255),
+    algorithm VARCHAR(255),
     hash BLOB,
-    CONSTRAINT uniqueness UNIQUE (
-        event_id, prev_event_id, algorithm
-    )
+    UNIQUE (event_id, prev_event_id, algorithm)
 );
 
-CREATE INDEX IF NOT EXISTS event_edge_hashes_id ON event_edge_hashes(
-    event_id
-);
+CREATE INDEX IF NOT EXISTS event_edge_hashes_id ON event_edge_hashes(event_id);
diff --git a/synapse/storage/schema/full_schemas/11/im.sql b/synapse/storage/schema/full_schemas/11/im.sql
index dd00c1cd2f..8feacdbe08 100644
--- a/synapse/storage/schema/full_schemas/11/im.sql
+++ b/synapse/storage/schema/full_schemas/11/im.sql
@@ -14,17 +14,17 @@
  */
 
 CREATE TABLE IF NOT EXISTS events(
-    stream_ordering INTEGER PRIMARY KEY AUTOINCREMENT,
+    stream_ordering INTEGER PRIMARY KEY,
     topological_ordering INTEGER NOT NULL,
-    event_id TEXT NOT NULL,
-    type TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    content TEXT NOT NULL,
-    unrecognized_keys TEXT,
+    event_id VARCHAR(255) NOT NULL,
+    type VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    content BLOB NOT NULL,
+    unrecognized_keys BLOB,
     processed BOOL NOT NULL,
     outlier BOOL NOT NULL,
     depth INTEGER DEFAULT 0 NOT NULL,
-    CONSTRAINT ev_uniq UNIQUE (event_id)
+    UNIQUE (event_id)
 );
 
 CREATE INDEX IF NOT EXISTS events_event_id ON events (event_id);
@@ -34,92 +34,92 @@ CREATE INDEX IF NOT EXISTS events_room_id ON events (room_id);
 
 
 CREATE TABLE IF NOT EXISTS event_json(
-    event_id TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    internal_metadata NOT NULL,
+    event_id VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    internal_metadata BLOB NOT NULL,
     json BLOB NOT NULL,
-    CONSTRAINT ev_j_uniq UNIQUE (event_id)
+    UNIQUE (event_id)
 );
 
-CREATE INDEX IF NOT EXISTS event_json_id ON event_json(event_id);
 CREATE INDEX IF NOT EXISTS event_json_room_id ON event_json(room_id);
 
 
-CREATE TABLE IF NOT EXISTS state_events(
-    event_id TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    type TEXT NOT NULL,
-    state_key TEXT NOT NULL,
-    prev_state TEXT
+CREATE TABLE state_events(
+    event_id VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    type VARCHAR(255) NOT NULL,
+    state_key VARCHAR(255) NOT NULL,
+    prev_state VARCHAR(255),
+    UNIQUE (event_id)
 );
 
-CREATE UNIQUE INDEX IF NOT EXISTS state_events_event_id ON state_events (event_id);
 CREATE INDEX IF NOT EXISTS state_events_room_id ON state_events (room_id);
 CREATE INDEX IF NOT EXISTS state_events_type ON state_events (type);
 CREATE INDEX IF NOT EXISTS state_events_state_key ON state_events (state_key);
 
 
 CREATE TABLE IF NOT EXISTS current_state_events(
-    event_id TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    type TEXT NOT NULL,
-    state_key TEXT NOT NULL,
-    CONSTRAINT curr_uniq UNIQUE (room_id, type, state_key) ON CONFLICT REPLACE
+    event_id VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    type VARCHAR(255) NOT NULL,
+    state_key VARCHAR(255) NOT NULL,
+    UNIQUE (event_id),
+    UNIQUE (room_id, type, state_key)
 );
 
-CREATE INDEX IF NOT EXISTS curr_events_event_id ON current_state_events (event_id);
 CREATE INDEX IF NOT EXISTS current_state_events_room_id ON current_state_events (room_id);
 CREATE INDEX IF NOT EXISTS current_state_events_type ON current_state_events (type);
 CREATE INDEX IF NOT EXISTS current_state_events_state_key ON current_state_events (state_key);
 
 CREATE TABLE IF NOT EXISTS room_memberships(
-    event_id TEXT NOT NULL,
-    user_id TEXT NOT NULL,
-    sender TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    membership TEXT NOT NULL
+    event_id VARCHAR(255) NOT NULL,
+    user_id VARCHAR(255) NOT NULL,
+    sender VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    membership VARCHAR(255) NOT NULL,
+    UNIQUE (event_id)
 );
 
-CREATE INDEX IF NOT EXISTS room_memberships_event_id ON room_memberships (event_id);
 CREATE INDEX IF NOT EXISTS room_memberships_room_id ON room_memberships (room_id);
 CREATE INDEX IF NOT EXISTS room_memberships_user_id ON room_memberships (user_id);
 
 CREATE TABLE IF NOT EXISTS feedback(
-    event_id TEXT NOT NULL,
-    feedback_type TEXT,
-    target_event_id TEXT,
-    sender TEXT,
-    room_id TEXT
+    event_id VARCHAR(255) NOT NULL,
+    feedback_type VARCHAR(255),
+    target_event_id VARCHAR(255),
+    sender VARCHAR(255),
+    room_id VARCHAR(255),
+    UNIQUE (event_id)
 );
 
 CREATE TABLE IF NOT EXISTS topics(
-    event_id TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    topic TEXT NOT NULL
+    event_id VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    topic VARCHAR(255) NOT NULL,
+    UNIQUE (event_id)
 );
 
-CREATE INDEX IF NOT EXISTS topics_event_id ON topics(event_id);
 CREATE INDEX IF NOT EXISTS topics_room_id ON topics(room_id);
 
 CREATE TABLE IF NOT EXISTS room_names(
-    event_id TEXT NOT NULL,
-    room_id TEXT NOT NULL,
-    name TEXT NOT NULL
+    event_id VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    name VARCHAR(255) NOT NULL,
+    UNIQUE (event_id)
 );
 
-CREATE INDEX IF NOT EXISTS room_names_event_id ON room_names(event_id);
 CREATE INDEX IF NOT EXISTS room_names_room_id ON room_names(room_id);
 
 CREATE TABLE IF NOT EXISTS rooms(
-    room_id TEXT PRIMARY KEY NOT NULL,
+    room_id VARCHAR(255) PRIMARY KEY NOT NULL,
     is_public INTEGER,
-    creator TEXT
+    creator VARCHAR(255)
 );
 
 CREATE TABLE IF NOT EXISTS room_hosts(
-    room_id TEXT NOT NULL,
-    host TEXT NOT NULL,
-    CONSTRAINT room_hosts_uniq UNIQUE (room_id, host) ON CONFLICT IGNORE
+    room_id VARCHAR(255) NOT NULL,
+    host VARCHAR(255) NOT NULL,
+    UNIQUE (room_id, host)
 );
 
 CREATE INDEX IF NOT EXISTS room_hosts_room_id ON room_hosts (room_id);
diff --git a/synapse/storage/schema/full_schemas/11/keys.sql b/synapse/storage/schema/full_schemas/11/keys.sql
index a9e0a4fe0d..7a5afe0946 100644
--- a/synapse/storage/schema/full_schemas/11/keys.sql
+++ b/synapse/storage/schema/full_schemas/11/keys.sql
@@ -13,19 +13,19 @@
  * limitations under the License.
  */
 CREATE TABLE IF NOT EXISTS server_tls_certificates(
-  server_name TEXT, -- Server name.
-  fingerprint TEXT, -- Certificate fingerprint.
-  from_server TEXT, -- Which key server the certificate was fetched from.
+  server_name VARCHAR(255), -- Server name.
+  fingerprint VARCHAR(255), -- Certificate fingerprint.
+  from_server VARCHAR(255), -- Which key server the certificate was fetched from.
   ts_added_ms INTEGER, -- When the certifcate was added.
   tls_certificate BLOB, -- DER encoded x509 certificate.
-  CONSTRAINT uniqueness UNIQUE (server_name, fingerprint)
+  UNIQUE (server_name, fingerprint)
 );
 
 CREATE TABLE IF NOT EXISTS server_signature_keys(
-  server_name TEXT, -- Server name.
-  key_id TEXT, -- Key version.
-  from_server TEXT, -- Which key server the key was fetched form.
+  server_name VARCHAR(255), -- Server name.
+  key_id VARCHAR(255), -- Key version.
+  from_server VARCHAR(255), -- Which key server the key was fetched form.
   ts_added_ms INTEGER, -- When the key was added.
   verify_key BLOB, -- NACL verification key.
-  CONSTRAINT uniqueness UNIQUE (server_name, key_id)
+  UNIQUE (server_name, key_id)
 );
diff --git a/synapse/storage/schema/full_schemas/11/media_repository.sql b/synapse/storage/schema/full_schemas/11/media_repository.sql
index afdf48cbfb..1e84c1d960 100644
--- a/synapse/storage/schema/full_schemas/11/media_repository.sql
+++ b/synapse/storage/schema/full_schemas/11/media_repository.sql
@@ -14,23 +14,23 @@
  */
 
 CREATE TABLE IF NOT EXISTS local_media_repository (
-    media_id TEXT, -- The id used to refer to the media.
-    media_type TEXT, -- The MIME-type of the media.
+    media_id VARCHAR(255), -- The id used to refer to the media.
+    media_type VARCHAR(255), -- The MIME-type of the media.
     media_length INTEGER, -- Length of the media in bytes.
     created_ts INTEGER, -- When the content was uploaded in ms.
-    upload_name TEXT, -- The name the media was uploaded with.
-    user_id TEXT, -- The user who uploaded the file.
-    CONSTRAINT uniqueness UNIQUE (media_id)
+    upload_name VARCHAR(255), -- The name the media was uploaded with.
+    user_id VARCHAR(255), -- The user who uploaded the file.
+    UNIQUE (media_id)
 );
 
 CREATE TABLE IF NOT EXISTS local_media_repository_thumbnails (
-    media_id TEXT, -- The id used to refer to the media.
+    media_id VARCHAR(255), -- The id used to refer to the media.
     thumbnail_width INTEGER, -- The width of the thumbnail in pixels.
     thumbnail_height INTEGER, -- The height of the thumbnail in pixels.
-    thumbnail_type TEXT, -- The MIME-type of the thumbnail.
-    thumbnail_method TEXT, -- The method used to make the thumbnail.
+    thumbnail_type VARCHAR(255), -- The MIME-type of the thumbnail.
+    thumbnail_method VARCHAR(255), -- The method used to make the thumbnail.
     thumbnail_length INTEGER, -- The length of the thumbnail in bytes.
-    CONSTRAINT uniqueness UNIQUE (
+    UNIQUE (
         media_id, thumbnail_width, thumbnail_height, thumbnail_type
     )
 );
@@ -39,29 +39,29 @@ CREATE INDEX IF NOT EXISTS local_media_repository_thumbnails_media_id
     ON local_media_repository_thumbnails (media_id);
 
 CREATE TABLE IF NOT EXISTS remote_media_cache (
-    media_origin TEXT, -- The remote HS the media came from.
-    media_id TEXT, -- The id used to refer to the media on that server.
-    media_type TEXT, -- The MIME-type of the media.
+    media_origin VARCHAR(255), -- The remote HS the media came from.
+    media_id VARCHAR(255), -- The id used to refer to the media on that server.
+    media_type VARCHAR(255), -- The MIME-type of the media.
     created_ts INTEGER, -- When the content was uploaded in ms.
-    upload_name TEXT, -- The name the media was uploaded with.
+    upload_name VARCHAR(255), -- The name the media was uploaded with.
     media_length INTEGER, -- Length of the media in bytes.
-    filesystem_id TEXT, -- The name used to store the media on disk.
-    CONSTRAINT uniqueness UNIQUE (media_origin, media_id)
+    filesystem_id VARCHAR(255), -- The name used to store the media on disk.
+    UNIQUE (media_origin, media_id)
 );
 
 CREATE TABLE IF NOT EXISTS remote_media_cache_thumbnails (
-    media_origin TEXT, -- The remote HS the media came from.
-    media_id TEXT, -- The id used to refer to the media.
+    media_origin VARCHAR(255), -- The remote HS the media came from.
+    media_id VARCHAR(255), -- The id used to refer to the media.
     thumbnail_width INTEGER, -- The width of the thumbnail in pixels.
     thumbnail_height INTEGER, -- The height of the thumbnail in pixels.
-    thumbnail_method TEXT, -- The method used to make the thumbnail
-    thumbnail_type TEXT, -- The MIME-type of the thumbnail.
+    thumbnail_method VARCHAR(255), -- The method used to make the thumbnail
+    thumbnail_type VARCHAR(255), -- The MIME-type of the thumbnail.
     thumbnail_length INTEGER, -- The length of the thumbnail in bytes.
-    filesystem_id TEXT, -- The name used to store the media on disk.
-    CONSTRAINT uniqueness UNIQUE (
+    filesystem_id VARCHAR(255), -- The name used to store the media on disk.
+    UNIQUE (
         media_origin, media_id, thumbnail_width, thumbnail_height,
-        thumbnail_type, thumbnail_type
-    )
+        thumbnail_type
+     )
 );
 
 CREATE INDEX IF NOT EXISTS remote_media_cache_thumbnails_media_id
diff --git a/synapse/storage/schema/full_schemas/11/presence.sql b/synapse/storage/schema/full_schemas/11/presence.sql
index f9f8db9697..5198123499 100644
--- a/synapse/storage/schema/full_schemas/11/presence.sql
+++ b/synapse/storage/schema/full_schemas/11/presence.sql
@@ -13,26 +13,26 @@
  * limitations under the License.
  */
 CREATE TABLE IF NOT EXISTS presence(
-  user_id INTEGER NOT NULL,
+  user_id VARCHAR(255) NOT NULL,
   state INTEGER,
-  status_msg TEXT,
+  status_msg VARCHAR(255),
   mtime INTEGER, -- miliseconds since last state change
-  FOREIGN KEY(user_id) REFERENCES users(id)
+  UNIQUE(user_id)
 );
 
 -- For each of /my/ users which possibly-remote users are allowed to see their
 -- presence state
 CREATE TABLE IF NOT EXISTS presence_allow_inbound(
-  observed_user_id INTEGER NOT NULL,
-  observer_user_id TEXT, -- a UserID,
-  FOREIGN KEY(observed_user_id) REFERENCES users(id)
+  observed_user_id VARCHAR(255) NOT NULL,
+  observer_user_id VARCHAR(255), -- a UserID,
+  UNIQUE(observed_user_id)
 );
 
 -- For each of /my/ users (watcher), which possibly-remote users are they
 -- watching?
 CREATE TABLE IF NOT EXISTS presence_list(
-  user_id INTEGER NOT NULL,
-  observed_user_id TEXT, -- a UserID,
+  user_id VARCHAR(255) NOT NULL,
+  observed_user_id VARCHAR(255), -- a UserID,
   accepted BOOLEAN,
-  FOREIGN KEY(user_id) REFERENCES users(id)
+  UNIQUE(user_id)
 );
diff --git a/synapse/storage/schema/full_schemas/11/profiles.sql b/synapse/storage/schema/full_schemas/11/profiles.sql
index f06a528b4d..9b22c9b1b9 100644
--- a/synapse/storage/schema/full_schemas/11/profiles.sql
+++ b/synapse/storage/schema/full_schemas/11/profiles.sql
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 CREATE TABLE IF NOT EXISTS profiles(
-    user_id INTEGER NOT NULL,
-    displayname TEXT,
-    avatar_url TEXT,
-    FOREIGN KEY(user_id) REFERENCES users(id)
+    user_id VARCHAR(255) NOT NULL,
+    displayname VARCHAR(255),
+    avatar_url VARCHAR(255),
+    UNIQUE(user_id)
 );
diff --git a/synapse/storage/schema/full_schemas/11/redactions.sql b/synapse/storage/schema/full_schemas/11/redactions.sql
index 5011d95db8..774584d7c5 100644
--- a/synapse/storage/schema/full_schemas/11/redactions.sql
+++ b/synapse/storage/schema/full_schemas/11/redactions.sql
@@ -13,9 +13,9 @@
  * limitations under the License.
  */
 CREATE TABLE IF NOT EXISTS redactions (
-    event_id TEXT NOT NULL,
-    redacts TEXT NOT NULL,
-    CONSTRAINT ev_uniq UNIQUE (event_id)
+    event_id VARCHAR(255) NOT NULL,
+    redacts VARCHAR(255) NOT NULL,
+    UNIQUE (event_id)
 );
 
 CREATE INDEX IF NOT EXISTS redactions_event_id ON redactions (event_id);
diff --git a/synapse/storage/schema/full_schemas/11/room_aliases.sql b/synapse/storage/schema/full_schemas/11/room_aliases.sql
index 0d2df01603..dd51c31c1f 100644
--- a/synapse/storage/schema/full_schemas/11/room_aliases.sql
+++ b/synapse/storage/schema/full_schemas/11/room_aliases.sql
@@ -14,14 +14,12 @@
  */
 
 CREATE TABLE IF NOT EXISTS room_aliases(
-    room_alias TEXT NOT NULL,
-    room_id TEXT NOT NULL
+    room_alias VARCHAR(255) NOT NULL,
+    room_id VARCHAR(255) NOT NULL,
+    UNIQUE (room_alias)
 );
 
 CREATE TABLE IF NOT EXISTS room_alias_servers(
-    room_alias TEXT NOT NULL,
-    server TEXT NOT NULL
+    room_alias VARCHAR(255) NOT NULL,
+    server VARCHAR(255) NOT NULL
 );
-
-
-
diff --git a/synapse/storage/schema/full_schemas/11/state.sql b/synapse/storage/schema/full_schemas/11/state.sql
index 1fe8f1e430..408a2d3914 100644
--- a/synapse/storage/schema/full_schemas/11/state.sql
+++ b/synapse/storage/schema/full_schemas/11/state.sql
@@ -15,33 +15,26 @@
 
 CREATE TABLE IF NOT EXISTS state_groups(
     id INTEGER PRIMARY KEY,
-    room_id TEXT NOT NULL,
-    event_id TEXT NOT NULL
+    room_id VARCHAR(255) NOT NULL,
+    event_id VARCHAR(255) NOT NULL
 );
 
 CREATE TABLE IF NOT EXISTS state_groups_state(
     state_group INTEGER NOT NULL,
-    room_id TEXT NOT NULL,
-    type TEXT NOT NULL,
-    state_key TEXT NOT NULL,
-    event_id TEXT NOT NULL
+    room_id VARCHAR(255) NOT NULL,
+    type VARCHAR(255) NOT NULL,
+    state_key VARCHAR(255) NOT NULL,
+    event_id VARCHAR(255) NOT NULL
 );
 
 CREATE TABLE IF NOT EXISTS event_to_state_groups(
-    event_id TEXT NOT NULL,
+    event_id VARCHAR(255) NOT NULL,
     state_group INTEGER NOT NULL,
-    CONSTRAINT event_to_state_groups_uniq UNIQUE (event_id)
+    UNIQUE (event_id)
 );
 
 CREATE INDEX IF NOT EXISTS state_groups_id ON state_groups(id);
 
-CREATE INDEX IF NOT EXISTS state_groups_state_id ON state_groups_state(
-    state_group
-);
-CREATE INDEX IF NOT EXISTS state_groups_state_tuple ON state_groups_state(
-    room_id, type, state_key
-);
-
-CREATE INDEX IF NOT EXISTS event_to_state_groups_id ON event_to_state_groups(
-    event_id
-);
\ No newline at end of file
+CREATE INDEX IF NOT EXISTS state_groups_state_id ON state_groups_state(state_group);
+CREATE INDEX IF NOT EXISTS state_groups_state_tuple ON state_groups_state(room_id, type, state_key);
+CREATE INDEX IF NOT EXISTS event_to_state_groups_id ON event_to_state_groups(event_id);
\ No newline at end of file
diff --git a/synapse/storage/schema/full_schemas/11/transactions.sql b/synapse/storage/schema/full_schemas/11/transactions.sql
index 2d30f99b06..0158308a38 100644
--- a/synapse/storage/schema/full_schemas/11/transactions.sql
+++ b/synapse/storage/schema/full_schemas/11/transactions.sql
@@ -14,34 +14,31 @@
  */
 -- Stores what transaction ids we have received and what our response was
 CREATE TABLE IF NOT EXISTS received_transactions(
-    transaction_id TEXT, 
-    origin TEXT, 
+    transaction_id VARCHAR(255),
+    origin VARCHAR(255),
     ts INTEGER,
     response_code INTEGER,
-    response_json TEXT,
+    response_json BLOB,
     has_been_referenced BOOL default 0, -- Whether thishas been referenced by a prev_tx
-    CONSTRAINT uniquesss UNIQUE (transaction_id, origin) ON CONFLICT REPLACE
+    UNIQUE (transaction_id, origin)
 );
 
-CREATE UNIQUE INDEX IF NOT EXISTS transactions_txid ON received_transactions(transaction_id, origin);
 CREATE INDEX IF NOT EXISTS transactions_have_ref ON received_transactions(origin, has_been_referenced);-- WHERE has_been_referenced = 0;
 
 
 -- Stores what transactions we've sent, what their response was (if we got one) and whether we have
 -- since referenced the transaction in another outgoing transaction
 CREATE TABLE IF NOT EXISTS sent_transactions(
-    id INTEGER PRIMARY KEY AUTOINCREMENT, -- This is used to apply insertion ordering
-    transaction_id TEXT,
-    destination TEXT,
+    id INTEGER PRIMARY KEY, -- This is used to apply insertion ordering
+    transaction_id VARCHAR(255),
+    destination VARCHAR(255),
     response_code INTEGER DEFAULT 0,
-    response_json TEXT,
+    response_json BLOB,
     ts INTEGER
 );
 
 CREATE INDEX IF NOT EXISTS sent_transaction_dest ON sent_transactions(destination);
-CREATE INDEX IF NOT EXISTS sent_transaction_dest_referenced ON sent_transactions(
-    destination
-);
+CREATE INDEX IF NOT EXISTS sent_transaction_dest_referenced ON sent_transactions(destination);
 CREATE INDEX IF NOT EXISTS sent_transaction_txn_id ON sent_transactions(transaction_id);
 -- So that we can do an efficient look up of all transactions that have yet to be successfully
 -- sent.
@@ -51,18 +48,17 @@ CREATE INDEX IF NOT EXISTS sent_transaction_sent ON sent_transactions(response_c
 -- For sent transactions only.
 CREATE TABLE IF NOT EXISTS transaction_id_to_pdu(
     transaction_id INTEGER,
-    destination TEXT,
-    pdu_id TEXT,
-    pdu_origin TEXT
+    destination VARCHAR(255),
+    pdu_id VARCHAR(255),
+    pdu_origin VARCHAR(255),
+    UNIQUE (transaction_id, destination)
 );
 
-CREATE INDEX IF NOT EXISTS transaction_id_to_pdu_tx ON transaction_id_to_pdu(transaction_id, destination);
 CREATE INDEX IF NOT EXISTS transaction_id_to_pdu_dest ON transaction_id_to_pdu(destination);
-CREATE INDEX IF NOT EXISTS transaction_id_to_pdu_index ON transaction_id_to_pdu(transaction_id, destination);
 
 -- To track destination health
 CREATE TABLE IF NOT EXISTS destinations(
-    destination TEXT PRIMARY KEY,
+    destination VARCHAR(255) PRIMARY KEY,
     retry_last_ts INTEGER,
     retry_interval INTEGER
 );
diff --git a/synapse/storage/schema/full_schemas/11/users.sql b/synapse/storage/schema/full_schemas/11/users.sql
index 08ccfdac0a..49a122eed6 100644
--- a/synapse/storage/schema/full_schemas/11/users.sql
+++ b/synapse/storage/schema/full_schemas/11/users.sql
@@ -13,33 +13,32 @@
  * limitations under the License.
  */
 CREATE TABLE IF NOT EXISTS users(
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
-    name TEXT,
-    password_hash TEXT,
+    id INTEGER PRIMARY KEY,
+    name VARCHAR(255),
+    password_hash VARBINARY(255),
     creation_ts INTEGER,
     admin BOOL DEFAULT 0 NOT NULL,
-    UNIQUE(name) ON CONFLICT ROLLBACK
+    UNIQUE(name)
 );
 
 CREATE TABLE IF NOT EXISTS access_tokens(
-    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    id INTEGER PRIMARY KEY,
     user_id INTEGER NOT NULL,
-    device_id TEXT,
-    token TEXT NOT NULL,
+    device_id VARCHAR(255),
+    token VARCHAR(255) NOT NULL,
     last_used INTEGER,
     FOREIGN KEY(user_id) REFERENCES users(id),
-    UNIQUE(token) ON CONFLICT ROLLBACK
+    UNIQUE(token)
 );
 
 CREATE TABLE IF NOT EXISTS user_ips (
-    user TEXT NOT NULL,
-    access_token TEXT NOT NULL,
-    device_id TEXT,
-    ip TEXT NOT NULL,
-    user_agent TEXT NOT NULL,
+    user VARCHAR(255) NOT NULL,
+    access_token VARCHAR(255) NOT NULL,
+    device_id VARCHAR(255),
+    ip VARCHAR(255) NOT NULL,
+    user_agent VARCHAR(255) NOT NULL,
     last_seen INTEGER NOT NULL,
-    CONSTRAINT user_ip UNIQUE (user, access_token, ip, user_agent) ON CONFLICT REPLACE
+    UNIQUE (user, access_token, ip, user_agent)
 );
 
 CREATE INDEX IF NOT EXISTS user_ips_user ON user_ips(user);
-
diff --git a/synapse/storage/schema/schema_version.sql b/synapse/storage/schema/schema_version.sql
index 0431e2d051..28762861e5 100644
--- a/synapse/storage/schema/schema_version.sql
+++ b/synapse/storage/schema/schema_version.sql
@@ -14,17 +14,16 @@
  */
 
 CREATE TABLE IF NOT EXISTS schema_version(
-    Lock char(1) NOT NULL DEFAULT 'X',  -- Makes sure this table only has one row.
-    version INTEGER NOT NULL,
-    upgraded BOOL NOT NULL,  -- Whether we reached this version from an upgrade or an initial schema.
-    CONSTRAINT schema_version_lock_x CHECK (Lock='X')
-    CONSTRAINT schema_version_lock_uniq UNIQUE (Lock)
+    `Lock` CHAR(1) NOT NULL DEFAULT 'X' UNIQUE,  -- Makes sure this table only has one row.
+    `version` INTEGER NOT NULL,
+    `upgraded` BOOL NOT NULL,  -- Whether we reached this version from an upgrade or an initial schema.
+    CHECK (`Lock`='X')
 );
 
 CREATE TABLE IF NOT EXISTS applied_schema_deltas(
-    version INTEGER NOT NULL,
-    file TEXT NOT NULL,
-    CONSTRAINT schema_deltas_ver_file UNIQUE (version, file) ON CONFLICT IGNORE
+    `version` INTEGER NOT NULL,
+    `file` VARCHAR(255) NOT NULL,
+    UNIQUE(version, file)
 );
 
 CREATE INDEX IF NOT EXISTS schema_deltas_ver ON applied_schema_deltas(version);