DB Migrations

Replacing modl’s built-in table creation and removal
with manual migrations. Thanks to @DavidHuie for
gomigrate!

datastore/migrations/00001_AddUsers_down.sql

@@ -0,0 +1,5 @@
+-- bactdb
+-- Matthew R Dillon
+
+DROP TABLE users;
+

datastore/migrations/00001_AddUsers_up.sql

@@ -0,0 +1,19 @@
+-- bactdb
+-- Matthew R Dillon
+
+CREATE TABLE users (
+    id BIGSERIAL NOT NULL,
+    username CHARACTER VARYING(100),
+
+    createdat TIMESTAMP WITH TIME ZONE,
+    updatedat TIMESTAMP WITH TIME ZONE,
+    deletedat TIMESTAMP WITH TIME ZONE,
+
+    CONSTRAINT users_pkey PRIMARY KEY (id)
+);
+
+CREATE UNIQUE INDEX username_idx
+    ON users
+    USING btree
+    (username COLLATE pg_catalog."default");
+