diff --git a/database_schematic.pgsql b/database_schematic.pgsql
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index 0000000..d80c8c0
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+CREATE TABLE boards (
+    board_id VARCHAR(5) PRIMARY KEY,
+    board_name VARCHAR(32) NOT NULL,
+    threads_ids INT8[]
+);
+
+CREATE TABLE threads (
+    thread_id SERIAL8 PRIMARY KEY,
+    thread_name VARCHAR(32),
+    root_post_id INT NOT NULL,
+    posts_ids INT[]
+);
+
+CREATE TABLE media (
+    media_id VARCHAR(22) PRIMARY KEY -- format: ${thread_id}-${media_number}, len(thread_id) = 20, + "-" + len(media_number) = 1 = 22
+);
+
+CREATE TABLE posts (
+    post_id SERIAL8 PRIMARY KEY,
+    content TEXT NOT NULL,
+    media_ids VARCHAR(22)[],
+    is_root BOOL NOT NULL,
+    date DATE NOT NULL,
+    internal_id INT NOT NULL, -- id of the post inside of the thread
+    user_ip CIDR NOT NULL 
+);
+
+CREATE TABLE admins (
+    login VARCHAR(16) PRIMARY KEY,
+    password_hash CHAR(60) NOT NULL,
+    privelege_name VARCHAR(16) NOT NULL
+);
+
+CREATE TABLE priveleges (
+    privelege_name VARCHAR(16) PRIMARY KEY,
+    access_level INT2 NOT NULL
+);
+
+CREATE TABLE bans (
+    ban_id SERIAL8 PRIMARY KEY,
+    user_ip CIDR NOT NULL,
+    duration INT8, -- duration in seconds
+    reason VARCHAR(255),
+    date DATE NOT NULL,
+    admin_issued VARCHAR(16) NOT NULL
+);
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