Initial open source release

deploy/migrations/0065_user_channel_member_index.up.sql

@@ -0,0 +1,29 @@
+CREATE TABLE IF NOT EXISTS user_channel_member_index (
+    user_id     BIGINT      NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    channel_id  BIGINT      NOT NULL REFERENCES channels(id) ON DELETE CASCADE,
+    status      VARCHAR(16) NOT NULL,
+    megagroup   BOOLEAN     NOT NULL DEFAULT false,
+    broadcast   BOOLEAN     NOT NULL DEFAULT false,
+    deleted     BOOLEAN     NOT NULL DEFAULT false,
+    updated_at  TIMESTAMPTZ NOT NULL DEFAULT now(),
+    PRIMARY KEY (user_id, channel_id),
+    CONSTRAINT user_channel_member_index_status_check
+        CHECK (status IN ('active', 'left', 'kicked', 'banned'))
+);
+
+CREATE INDEX IF NOT EXISTS user_channel_member_index_common_idx
+    ON user_channel_member_index (user_id, channel_id)
+    WHERE status = 'active' AND megagroup AND NOT broadcast AND NOT deleted;
+
+INSERT INTO user_channel_member_index (
+    user_id, channel_id, status, megagroup, broadcast, deleted
+)
+SELECT m.user_id, m.channel_id, m.status, c.megagroup, c.broadcast, c.deleted
+FROM channel_members m
+JOIN channels c ON c.id = m.channel_id
+ON CONFLICT (user_id, channel_id) DO UPDATE SET
+    status = EXCLUDED.status,
+    megagroup = EXCLUDED.megagroup,
+    broadcast = EXCLUDED.broadcast,
+    deleted = EXCLUDED.deleted,
+    updated_at = now();