add migrations

migrations/1525942800_app.up.sql

@@ -12,4 +12,3 @@ create table connection
   updated_at timestamp with time zone,
   active     boolean
 );
-

migrations/1525944630_app.up.sql

@@ -11,4 +11,3 @@ create table bot
   updated_at timestamp with time zone,
   active     boolean
 );
-

migrations/1526308450_app.up.sql

@@ -6,4 +6,3 @@ create table mapping
   site_code text,
   bot_id    text
 );
-

migrations/1526636120_app.down.sql

@@ -0,0 +1,11 @@
+alter table connection
+  alter column client_id type text,
+  alter column api_key type text,
+  alter column api_url type text,
+  alter column mg_url type text,
+  alter column mg_token type text;
+
+alter table bot
+  alter column client_id type text,
+  alter column name type text,
+  alter column token type text;

migrations/1526636120_app.up.sql

@@ -0,0 +1,11 @@
+alter table connection
+  alter column client_id type varchar(70),
+  alter column api_key type varchar(100),
+  alter column api_url type varchar(100),
+  alter column mg_url type varchar(100),
+  alter column mg_token type varchar(100);
+
+alter table bot
+  alter column client_id type varchar(70),
+  alter column name type varchar(40),
+  alter column token type varchar(100);