Use unsigned bigint

19 files changed, 50 insertions, 50 deletions

diff --git a/synapse/storage/schema/delta/12/v12.sql b/synapse/storage/schema/delta/12/v12.sql
index 4107cba71f..1247fd175c 100644
--- a/synapse/storage/schema/delta/12/v12.sql
+++ b/synapse/storage/schema/delta/12/v12.sql
@@ -30,12 +30,12 @@ CREATE TABLE IF NOT EXISTS pushers (
   app_display_name VARCHAR(64) NOT NULL,
   device_display_name VARCHAR(128) NOT NULL,
   pushkey VARBINARY(512) NOT NULL,
-  ts BIGINT NOT NULL,
+  ts BIGINT UNSIGNED NOT NULL,
   lang VARCHAR(8),
   data BLOB,
   last_token TEXT,
-  last_success BIGINT,
-  failing_since BIGINT,
+  last_success BIGINT UNSIGNED,
+  failing_since BIGINT UNSIGNED,
   UNIQUE (app_id, pushkey)
 );
 
@@ -54,7 +54,7 @@ CREATE INDEX IF NOT EXISTS push_rules_user_name on push_rules (user_name);
 
 CREATE TABLE IF NOT EXISTS user_filters(
   user_id VARCHAR(150),
-  filter_id BIGINT,
+  filter_id BIGINT UNSIGNED,
   filter_json BLOB
 );
 
diff --git a/synapse/storage/schema/delta/13/v13.sql b/synapse/storage/schema/delta/13/v13.sql
index 17a139b867..d1da2b48e2 100644
--- a/synapse/storage/schema/delta/13/v13.sql
+++ b/synapse/storage/schema/delta/13/v13.sql
@@ -24,7 +24,7 @@ CREATE TABLE IF NOT EXISTS application_services(
 
 CREATE TABLE IF NOT EXISTS application_services_regex(
     id INTEGER PRIMARY KEY AUTOINCREMENT,
-    as_id BIGINT NOT NULL,
+    as_id BIGINT UNSIGNED NOT NULL,
     namespace INTEGER,  /* enum[room_id|room_alias|user_id] */
     regex VARCHAR(150),
     FOREIGN KEY(as_id) REFERENCES application_services(id)
diff --git a/synapse/storage/schema/delta/16/users.sql b/synapse/storage/schema/delta/16/users.sql
index 1bbd1c0a17..f04705cd77 100644
--- a/synapse/storage/schema/delta/16/users.sql
+++ b/synapse/storage/schema/delta/16/users.sql
@@ -1,11 +1,11 @@
 -- Convert `access_tokens`.user from rowids to user strings.
 -- MUST BE DONE BEFORE REMOVING ID COLUMN FROM USERS TABLE BELOW
 CREATE TABLE IF NOT EXISTS new_access_tokens(
-    id BIGINT PRIMARY KEY,
+    id BIGINT UNSIGNED PRIMARY KEY,
     user_id VARCHAR(150) NOT NULL,
     device_id VARCHAR(150),
     token VARCHAR(150) NOT NULL,
-    last_used BIGINT,
+    last_used BIGINT UNSIGNED,
     UNIQUE(token)
 );
 
@@ -22,7 +22,7 @@ ALTER TABLE new_access_tokens RENAME TO access_tokens;
 CREATE TABLE IF NOT EXISTS new_users(
     name VARCHAR(150),
     password_hash VARCHAR(150),
-    creation_ts BIGINT,
+    creation_ts BIGINT UNSIGNED,
     admin BOOL DEFAULT 0 NOT NULL,
     UNIQUE(name)
 );
@@ -41,7 +41,7 @@ CREATE TABLE IF NOT EXISTS new_user_ips (
     device_id VARCHAR(150),
     ip VARCHAR(150) NOT NULL,
     user_agent VARCHAR(150) NOT NULL,
-    last_seen BIGINT NOT NULL
+    last_seen BIGINT UNSIGNED NOT NULL
 );
 
 INSERT INTO new_user_ips
diff --git a/synapse/storage/schema/full_schemas/11/event_edges.sql b/synapse/storage/schema/full_schemas/11/event_edges.sql
index 602c11411d..bdb1109094 100644
--- a/synapse/storage/schema/full_schemas/11/event_edges.sql
+++ b/synapse/storage/schema/full_schemas/11/event_edges.sql
@@ -57,7 +57,7 @@ CREATE INDEX IF NOT EXISTS room_depth_room ON room_depth(room_id);
 create TABLE IF NOT EXISTS event_destinations(
     event_id VARCHAR(150) NOT NULL,
     destination VARCHAR(150) NOT NULL,
-    delivered_ts BIGINT DEFAULT 0, -- or 0 if not delivered
+    delivered_ts BIGINT UNSIGNED DEFAULT 0, -- or 0 if not delivered
     UNIQUE (event_id, destination)
 );
 
diff --git a/synapse/storage/schema/full_schemas/11/im.sql b/synapse/storage/schema/full_schemas/11/im.sql
index 91ae9b9ee4..e75093a446 100644
--- a/synapse/storage/schema/full_schemas/11/im.sql
+++ b/synapse/storage/schema/full_schemas/11/im.sql
@@ -15,7 +15,7 @@
 
 CREATE TABLE IF NOT EXISTS events(
     stream_ordering INTEGER PRIMARY KEY AUTOINCREMENT,
-    topological_ordering BIGINT NOT NULL,
+    topological_ordering BIGINT UNSIGNED NOT NULL,
     event_id VARCHAR(150) NOT NULL,
     type VARCHAR(150) NOT NULL,
     room_id VARCHAR(150) NOT NULL,
@@ -23,7 +23,7 @@ CREATE TABLE IF NOT EXISTS events(
     unrecognized_keys BLOB,
     processed BOOL NOT NULL,
     outlier BOOL NOT NULL,
-    depth BIGINT DEFAULT 0 NOT NULL,
+    depth BIGINT UNSIGNED DEFAULT 0 NOT NULL,
     UNIQUE (event_id)
 );
 
diff --git a/synapse/storage/schema/full_schemas/11/keys.sql b/synapse/storage/schema/full_schemas/11/keys.sql
index 0e80bf761e..551650cf1d 100644
--- a/synapse/storage/schema/full_schemas/11/keys.sql
+++ b/synapse/storage/schema/full_schemas/11/keys.sql
@@ -16,7 +16,7 @@ CREATE TABLE IF NOT EXISTS server_tls_certificates(
   server_name VARCHAR(150), -- Server name.
   fingerprint VARCHAR(150), -- Certificate fingerprint.
   from_server VARCHAR(150), -- Which key server the certificate was fetched from.
-  ts_added_ms BIGINT, -- When the certifcate was added.
+  ts_added_ms BIGINT UNSIGNED, -- When the certifcate was added.
   tls_certificate BLOB, -- DER encoded x509 certificate.
   UNIQUE (server_name, fingerprint)
 );
@@ -25,7 +25,7 @@ CREATE TABLE IF NOT EXISTS server_signature_keys(
   server_name VARCHAR(150), -- Server name.
   key_id VARCHAR(150), -- Key version.
   from_server VARCHAR(150), -- Which key server the key was fetched form.
-  ts_added_ms BIGINT, -- When the key was added.
+  ts_added_ms BIGINT UNSIGNED, -- When the key was added.
   verify_key BLOB, -- NACL verification key.
   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 c6ce6cf69f..134e7fbcec 100644
--- a/synapse/storage/schema/full_schemas/11/media_repository.sql
+++ b/synapse/storage/schema/full_schemas/11/media_repository.sql
@@ -17,7 +17,7 @@ CREATE TABLE IF NOT EXISTS local_media_repository (
     media_id VARCHAR(150), -- The id used to refer to the media.
     media_type VARCHAR(150), -- The MIME-type of the media.
     media_length INTEGER, -- Length of the media in bytes.
-    created_ts BIGINT, -- When the content was uploaded in ms.
+    created_ts BIGINT UNSIGNED, -- When the content was uploaded in ms.
     upload_name VARCHAR(150), -- The name the media was uploaded with.
     user_id VARCHAR(150), -- The user who uploaded the file.
     UNIQUE (media_id)
@@ -42,7 +42,7 @@ CREATE TABLE IF NOT EXISTS remote_media_cache (
     media_origin VARCHAR(150), -- The remote HS the media came from.
     media_id VARCHAR(150), -- The id used to refer to the media on that server.
     media_type VARCHAR(150), -- The MIME-type of the media.
-    created_ts BIGINT, -- When the content was uploaded in ms.
+    created_ts BIGINT UNSIGNED, -- When the content was uploaded in ms.
     upload_name VARCHAR(150), -- The name the media was uploaded with.
     media_length INTEGER, -- Length of the media in bytes.
     filesystem_id VARCHAR(150), -- The name used to store the media on disk.
diff --git a/synapse/storage/schema/full_schemas/11/presence.sql b/synapse/storage/schema/full_schemas/11/presence.sql
index fce324b890..c617ebea73 100644
--- a/synapse/storage/schema/full_schemas/11/presence.sql
+++ b/synapse/storage/schema/full_schemas/11/presence.sql
@@ -16,7 +16,7 @@ CREATE TABLE IF NOT EXISTS presence(
   user_id VARCHAR(150) NOT NULL,
   state VARCHAR(20),
   status_msg VARCHAR(150),
-  mtime BIGINT -- miliseconds since last state change
+  mtime BIGINT UNSIGNED -- miliseconds since last state change
 );
 
 -- For each of /my/ users which possibly-remote users are allowed to see their
diff --git a/synapse/storage/schema/full_schemas/11/transactions.sql b/synapse/storage/schema/full_schemas/11/transactions.sql
index a9bf301efc..67c79db3e0 100644
--- a/synapse/storage/schema/full_schemas/11/transactions.sql
+++ b/synapse/storage/schema/full_schemas/11/transactions.sql
@@ -16,7 +16,7 @@
 CREATE TABLE IF NOT EXISTS received_transactions(
     transaction_id VARCHAR(150),
     origin VARCHAR(150),
-    ts BIGINT,
+    ts BIGINT UNSIGNED,
     response_code INTEGER,
     response_json BLOB,
     has_been_referenced BOOL default 0, -- Whether thishas been referenced by a prev_tx
@@ -34,7 +34,7 @@ CREATE TABLE IF NOT EXISTS sent_transactions(
     destination VARCHAR(150),
     response_code INTEGER DEFAULT 0,
     response_json BLOB,
-    ts BIGINT
+    ts BIGINT UNSIGNED
 );
 
 CREATE INDEX IF NOT EXISTS sent_transaction_dest ON sent_transactions(destination);
@@ -58,6 +58,6 @@ CREATE INDEX IF NOT EXISTS transaction_id_to_pdu_dest ON transaction_id_to_pdu(d
 -- To track destination health
 CREATE TABLE IF NOT EXISTS destinations(
     destination VARCHAR(150) PRIMARY KEY,
-    retry_last_ts BIGINT,
+    retry_last_ts BIGINT UNSIGNED,
     retry_interval INTEGER
 );
diff --git a/synapse/storage/schema/full_schemas/11/users.sql b/synapse/storage/schema/full_schemas/11/users.sql
index ad5e403f92..0ddfccd410 100644
--- a/synapse/storage/schema/full_schemas/11/users.sql
+++ b/synapse/storage/schema/full_schemas/11/users.sql
@@ -16,7 +16,7 @@ CREATE TABLE IF NOT EXISTS users(
     id INTEGER PRIMARY KEY AUTOINCREMENT,
     name VARCHAR(150),
     password_hash VARCHAR(150),
-    creation_ts BIGINT,
+    creation_ts BIGINT UNSIGNED,
     admin BOOL DEFAULT 0 NOT NULL,
     UNIQUE(name)
 );
@@ -26,7 +26,7 @@ CREATE TABLE IF NOT EXISTS access_tokens(
     user_id VARCHAR(150) NOT NULL,
     device_id VARCHAR(150),
     token VARCHAR(150) NOT NULL,
-    last_used BIGINT,
+    last_used BIGINT UNSIGNED,
     UNIQUE(token)
 );
 
@@ -36,7 +36,7 @@ CREATE TABLE IF NOT EXISTS user_ips (
     device_id VARCHAR(150),
     ip VARCHAR(150) NOT NULL,
     user_agent VARCHAR(150) NOT NULL,
-    last_seen BIGINT NOT NULL,
+    last_seen BIGINT UNSIGNED NOT NULL,
     UNIQUE (user, access_token, ip, user_agent)
 );
 
diff --git a/synapse/storage/schema/full_schemas/16/application_services.sql b/synapse/storage/schema/full_schemas/16/application_services.sql
index 7a5c2510d2..fbc3e08a1c 100644
--- a/synapse/storage/schema/full_schemas/16/application_services.sql
+++ b/synapse/storage/schema/full_schemas/16/application_services.sql
@@ -14,7 +14,7 @@
  */
 
 CREATE TABLE IF NOT EXISTS application_services(
-    id BIGINT PRIMARY KEY,
+    id BIGINT UNSIGNED PRIMARY KEY,
     url VARCHAR(150),
     token VARCHAR(150),
     hs_token VARCHAR(150),
@@ -23,8 +23,8 @@ CREATE TABLE IF NOT EXISTS application_services(
 );
 
 CREATE TABLE IF NOT EXISTS application_services_regex(
-    id BIGINT PRIMARY KEY,
-    as_id BIGINT NOT NULL,
+    id BIGINT UNSIGNED PRIMARY KEY,
+    as_id BIGINT UNSIGNED NOT NULL,
     namespace INTEGER,  /* enum[room_id|room_alias|user_id] */
     regex VARCHAR(150),
     FOREIGN KEY(as_id) REFERENCES application_services(id)
diff --git a/synapse/storage/schema/full_schemas/16/event_edges.sql b/synapse/storage/schema/full_schemas/16/event_edges.sql
index 602c11411d..bdb1109094 100644
--- a/synapse/storage/schema/full_schemas/16/event_edges.sql
+++ b/synapse/storage/schema/full_schemas/16/event_edges.sql
@@ -57,7 +57,7 @@ CREATE INDEX IF NOT EXISTS room_depth_room ON room_depth(room_id);
 create TABLE IF NOT EXISTS event_destinations(
     event_id VARCHAR(150) NOT NULL,
     destination VARCHAR(150) NOT NULL,
-    delivered_ts BIGINT DEFAULT 0, -- or 0 if not delivered
+    delivered_ts BIGINT UNSIGNED DEFAULT 0, -- or 0 if not delivered
     UNIQUE (event_id, destination)
 );
 
diff --git a/synapse/storage/schema/full_schemas/16/im.sql b/synapse/storage/schema/full_schemas/16/im.sql
index 363e2c842e..81dae2a911 100644
--- a/synapse/storage/schema/full_schemas/16/im.sql
+++ b/synapse/storage/schema/full_schemas/16/im.sql
@@ -14,8 +14,8 @@
  */
 
 CREATE TABLE IF NOT EXISTS events(
-    stream_ordering BIGINT PRIMARY KEY,
-    topological_ordering BIGINT NOT NULL,
+    stream_ordering BIGINT UNSIGNED PRIMARY KEY,
+    topological_ordering BIGINT UNSIGNED NOT NULL,
     event_id VARCHAR(150) NOT NULL,
     type VARCHAR(150) NOT NULL,
     room_id VARCHAR(150) NOT NULL,
@@ -23,7 +23,7 @@ CREATE TABLE IF NOT EXISTS events(
     unrecognized_keys BLOB,
     processed BOOL NOT NULL,
     outlier BOOL NOT NULL,
-    depth BIGINT DEFAULT 0 NOT NULL,
+    depth BIGINT UNSIGNED DEFAULT 0 NOT NULL,
     UNIQUE (event_id)
 );
 
diff --git a/synapse/storage/schema/full_schemas/16/keys.sql b/synapse/storage/schema/full_schemas/16/keys.sql
index 0e80bf761e..551650cf1d 100644
--- a/synapse/storage/schema/full_schemas/16/keys.sql
+++ b/synapse/storage/schema/full_schemas/16/keys.sql
@@ -16,7 +16,7 @@ CREATE TABLE IF NOT EXISTS server_tls_certificates(
   server_name VARCHAR(150), -- Server name.
   fingerprint VARCHAR(150), -- Certificate fingerprint.
   from_server VARCHAR(150), -- Which key server the certificate was fetched from.
-  ts_added_ms BIGINT, -- When the certifcate was added.
+  ts_added_ms BIGINT UNSIGNED, -- When the certifcate was added.
   tls_certificate BLOB, -- DER encoded x509 certificate.
   UNIQUE (server_name, fingerprint)
 );
@@ -25,7 +25,7 @@ CREATE TABLE IF NOT EXISTS server_signature_keys(
   server_name VARCHAR(150), -- Server name.
   key_id VARCHAR(150), -- Key version.
   from_server VARCHAR(150), -- Which key server the key was fetched form.
-  ts_added_ms BIGINT, -- When the key was added.
+  ts_added_ms BIGINT UNSIGNED, -- When the key was added.
   verify_key BLOB, -- NACL verification key.
   UNIQUE (server_name, key_id)
 );
diff --git a/synapse/storage/schema/full_schemas/16/media_repository.sql b/synapse/storage/schema/full_schemas/16/media_repository.sql
index 08c42722d2..014bce4aeb 100644
--- a/synapse/storage/schema/full_schemas/16/media_repository.sql
+++ b/synapse/storage/schema/full_schemas/16/media_repository.sql
@@ -17,7 +17,7 @@ CREATE TABLE IF NOT EXISTS local_media_repository (
     media_id VARCHAR(150), -- The id used to refer to the media.
     media_type VARCHAR(150), -- The MIME-type of the media.
     media_length INTEGER, -- Length of the media in bytes.
-    created_ts BIGINT, -- When the content was uploaded in ms.
+    created_ts BIGINT UNSIGNED, -- When the content was uploaded in ms.
     upload_name VARCHAR(150), -- The name the media was uploaded with.
     user_id VARCHAR(150), -- The user who uploaded the file.
     UNIQUE (media_id)
@@ -42,7 +42,7 @@ CREATE TABLE IF NOT EXISTS remote_media_cache (
     media_origin VARCHAR(150), -- The remote HS the media came from.
     media_id VARCHAR(150), -- The id used to refer to the media on that server.
     media_type VARCHAR(150), -- The MIME-type of the media.
-    created_ts BIGINT, -- When the content was uploaded in ms.
+    created_ts BIGINT UNSIGNED, -- When the content was uploaded in ms.
     upload_name VARCHAR(150), -- The name the media was uploaded with.
     media_length INTEGER, -- Length of the media in bytes.
     filesystem_id VARCHAR(150), -- The name used to store the media on disk.
diff --git a/synapse/storage/schema/full_schemas/16/presence.sql b/synapse/storage/schema/full_schemas/16/presence.sql
index 15a6ad3c79..fbe5b0af6c 100644
--- a/synapse/storage/schema/full_schemas/16/presence.sql
+++ b/synapse/storage/schema/full_schemas/16/presence.sql
@@ -16,7 +16,7 @@ CREATE TABLE IF NOT EXISTS presence(
   user_id VARCHAR(150) NOT NULL,
   state VARCHAR(20),
   status_msg VARCHAR(150),
-  mtime BIGINT, -- miliseconds since last state change
+  mtime BIGINT UNSIGNED, -- miliseconds since last state change
   UNIQUE (user_id)
 );
 
diff --git a/synapse/storage/schema/full_schemas/16/push.sql b/synapse/storage/schema/full_schemas/16/push.sql
index 4c8faa9213..99175b9632 100644
--- a/synapse/storage/schema/full_schemas/16/push.sql
+++ b/synapse/storage/schema/full_schemas/16/push.sql
@@ -22,7 +22,7 @@ CREATE TABLE IF NOT EXISTS rejections(
 
 -- Push notification endpoints that users have configured
 CREATE TABLE IF NOT EXISTS pushers (
-  id BIGINT PRIMARY KEY,
+  id BIGINT UNSIGNED PRIMARY KEY,
   user_name VARCHAR(150) NOT NULL,
   profile_tag VARCHAR(32) NOT NULL,
   kind VARCHAR(8) NOT NULL,
@@ -30,17 +30,17 @@ CREATE TABLE IF NOT EXISTS pushers (
   app_display_name VARCHAR(64) NOT NULL,
   device_display_name VARCHAR(128) NOT NULL,
   pushkey VARBINARY(512) NOT NULL,
-  ts BIGINT NOT NULL,
+  ts BIGINT UNSIGNED NOT NULL,
   lang VARCHAR(8),
   data BLOB,
   last_token TEXT,
-  last_success BIGINT,
-  failing_since BIGINT,
+  last_success BIGINT UNSIGNED,
+  failing_since BIGINT UNSIGNED,
   UNIQUE (app_id, pushkey)
 );
 
 CREATE TABLE IF NOT EXISTS push_rules (
-  id BIGINT PRIMARY KEY,
+  id BIGINT UNSIGNED PRIMARY KEY,
   user_name VARCHAR(150) NOT NULL,
   rule_id VARCHAR(150) NOT NULL,
   priority_class TINYINT NOT NULL,
@@ -54,7 +54,7 @@ CREATE INDEX IF NOT EXISTS push_rules_user_name on push_rules (user_name);
 
 CREATE TABLE IF NOT EXISTS user_filters(
   user_id VARCHAR(150),
-  filter_id BIGINT,
+  filter_id BIGINT UNSIGNED,
   filter_json BLOB
 );
 
@@ -63,7 +63,7 @@ CREATE INDEX IF NOT EXISTS user_filters_by_user_id_filter_id ON user_filters(
 );
 
 CREATE TABLE IF NOT EXISTS push_rules_enable (
-  id BIGINT PRIMARY KEY,
+  id BIGINT UNSIGNED PRIMARY KEY,
   user_name VARCHAR(150) NOT NULL,
   rule_id VARCHAR(150) NOT NULL,
   enabled TINYINT,
diff --git a/synapse/storage/schema/full_schemas/16/transactions.sql b/synapse/storage/schema/full_schemas/16/transactions.sql
index c908109b6b..e48eb44144 100644
--- a/synapse/storage/schema/full_schemas/16/transactions.sql
+++ b/synapse/storage/schema/full_schemas/16/transactions.sql
@@ -16,7 +16,7 @@
 CREATE TABLE IF NOT EXISTS received_transactions(
     transaction_id VARCHAR(150),
     origin VARCHAR(150),
-    ts BIGINT,
+    ts BIGINT UNSIGNED,
     response_code INTEGER,
     response_json BLOB,
     has_been_referenced BOOL default 0, -- Whether thishas been referenced by a prev_tx
@@ -29,12 +29,12 @@ CREATE INDEX IF NOT EXISTS transactions_have_ref ON received_transactions(origin
 -- 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 BIGINT PRIMARY KEY, -- This is used to apply insertion ordering
+    id BIGINT UNSIGNED PRIMARY KEY, -- This is used to apply insertion ordering
     transaction_id VARCHAR(150),
     destination VARCHAR(150),
     response_code INTEGER DEFAULT 0,
     response_json BLOB,
-    ts BIGINT
+    ts BIGINT UNSIGNED
 );
 
 CREATE INDEX IF NOT EXISTS sent_transaction_dest ON sent_transactions(destination);
@@ -58,6 +58,6 @@ CREATE INDEX IF NOT EXISTS transaction_id_to_pdu_dest ON transaction_id_to_pdu(d
 -- To track destination health
 CREATE TABLE IF NOT EXISTS destinations(
     destination VARCHAR(150) PRIMARY KEY,
-    retry_last_ts BIGINT,
+    retry_last_ts BIGINT UNSIGNED,
     retry_interval INTEGER
 );
diff --git a/synapse/storage/schema/full_schemas/16/users.sql b/synapse/storage/schema/full_schemas/16/users.sql
index 32dfc5b182..d0011c04b4 100644
--- a/synapse/storage/schema/full_schemas/16/users.sql
+++ b/synapse/storage/schema/full_schemas/16/users.sql
@@ -15,17 +15,17 @@
 CREATE TABLE IF NOT EXISTS users(
     name VARCHAR(150),
     password_hash VARCHAR(150),
-    creation_ts BIGINT,
+    creation_ts BIGINT UNSIGNED,
     admin BOOL DEFAULT 0 NOT NULL,
     UNIQUE(name)
 );
 
 CREATE TABLE IF NOT EXISTS access_tokens(
-    id BIGINT PRIMARY KEY,
+    id BIGINT UNSIGNED PRIMARY KEY,
     user_id VARCHAR(150) NOT NULL,
     device_id VARCHAR(150),
     token VARCHAR(150) NOT NULL,
-    last_used BIGINT,
+    last_used BIGINT UNSIGNED,
     UNIQUE(token)
 );
 
@@ -35,7 +35,7 @@ CREATE TABLE IF NOT EXISTS user_ips (
     device_id VARCHAR(150),
     ip VARCHAR(150) NOT NULL,
     user_agent VARCHAR(150) NOT NULL,
-    last_seen BIGINT NOT NULL
+    last_seen BIGINT UNSIGNED NOT NULL
 );
 
 CREATE INDEX IF NOT EXISTS user_ips_user ON user_ips(user);