added collections table

00-tables.sql

@@ -151,3 +151,12 @@ CREATE TABLE job (
 );
 
 CREATE INDEX owner_idx ON job USING btree(owner_id);
+
+CREATE TABLE collections (
+    collection_id     SERIAL        NOT NULL,
+    title             VARCHAR       NOT NULL,
+    owner_id          VARCHAR       NOT NULL,
+    PRIMARY KEY (collection_id),
+    FOREIGN KEY (owner_id) REFERENCES users (user_id)
+);
+