diff --git a/domains/store/src/main/sqldelight/app/dapk/db/migration/2.sqm b/domains/store/src/main/sqldelight/app/dapk/db/migration/2.sqm
new file mode 100644
index 0000000..f4ee11d
--- /dev/null
+++ b/domains/store/src/main/sqldelight/app/dapk/db/migration/2.sqm
@@ -0,0 +1,5 @@
+CREATE TABLE IF NOT EXISTS dbStRoomMeta  (
+    room_id TEXT NOT NULL,
+    is_bubble INTEGER AS Int NOT NULL DEFAULT 0,
+    PRIMARY KEY (room_id)
+);
\ No newline at end of file
diff --git a/domains/store/src/main/sqldelight/app/dapk/db/model/BubbleRoom.sq b/domains/store/src/main/sqldelight/app/dapk/db/model/BubbleRoom.sq
new file mode 100644
index 0000000..b936524
--- /dev/null
+++ b/domains/store/src/main/sqldelight/app/dapk/db/model/BubbleRoom.sq
@@ -0,0 +1,18 @@
+CREATE TABLE dbStRoomMeta  (
+    room_id TEXT NOT NULL,
+    is_bubble INTEGER AS Int NOT NULL DEFAULT 0,
+    PRIMARY KEY (room_id)
+);
+
+markBubble:
+INSERT OR REPLACE INTO dbStRoomMeta(room_id, is_bubble)
+VALUES (?,?);
+
+unmarkBubble:
+INSERT OR REPLACE INTO dbStRoomMeta(room_id, is_bubble)
+VALUES (?,?);
+
+select:
+SELECT is_bubble
+FROM dbStRoomMeta
+WHERE room_id = ?;