feat: ✨ admin routing part 4

migrations/20241204225143_create_post_table.up.sql

@@ -1,6 +1,7 @@
 -- Add up migration script here
 CREATE TABLE IF NOT EXISTS "post"(
-    creation_time TIMESTAMPTZ PRIMARY KEY UNIQUE NOT NULL DEFAULT NOW(),
     user_id BIGSERIAL NOT NULL REFERENCES "user"(user_id),
-    post VARCHAR(8192) NOT NULL UNIQUE
+    creation_time TIMESTAMPTZ UNIQUE NOT NULL DEFAULT NOW(),
+    post VARCHAR(8192) NOT NULL UNIQUE,
+    PRIMARY KEY(user_id, creation_time)
 );