diff --git a/migrations/mysql/20210531234123_add_kline_taker_buy_columns.sql b/migrations/mysql/20210531234123_add_kline_taker_buy_columns.sql
index 35a2b4616..b30387094 100644
--- a/migrations/mysql/20210531234123_add_kline_taker_buy_columns.sql
+++ b/migrations/mysql/20210531234123_add_kline_taker_buy_columns.sql
@@ -1,21 +1,21 @@
 -- +up
 -- +begin
 ALTER TABLE `binance_klines`
-    ADD COLUMN `quote_volume`           DECIMAL(32, 4) NOT NULL DEFAULT 0.0,
-    ADD COLUMN `taker_buy_base_volume`  DECIMAL(16, 8) NOT NULL DEFAULT 0.0,
-    ADD COLUMN `taker_buy_quote_volume` DECIMAL(32, 4) NOT NULL DEFAULT 0.0;
+    ADD COLUMN `quote_volume`           DECIMAL(32, 8) NOT NULL DEFAULT 0.0,
+    ADD COLUMN `taker_buy_base_volume`  DECIMAL(32, 8) NOT NULL DEFAULT 0.0,
+    ADD COLUMN `taker_buy_quote_volume` DECIMAL(32, 8) NOT NULL DEFAULT 0.0;
 -- +end
 -- +begin
 ALTER TABLE `max_klines`
-    ADD COLUMN `quote_volume`           DECIMAL(32, 4) NOT NULL DEFAULT 0.0,
-    ADD COLUMN `taker_buy_base_volume`  DECIMAL(16, 8) NOT NULL DEFAULT 0.0,
-    ADD COLUMN `taker_buy_quote_volume` DECIMAL(32, 4) NOT NULL DEFAULT 0.0;
+    ADD COLUMN `quote_volume`           DECIMAL(32, 8) NOT NULL DEFAULT 0.0,
+    ADD COLUMN `taker_buy_base_volume`  DECIMAL(32, 8) NOT NULL DEFAULT 0.0,
+    ADD COLUMN `taker_buy_quote_volume` DECIMAL(32, 8) NOT NULL DEFAULT 0.0;
 -- +end
 -- +begin
 ALTER TABLE `okex_klines`
-    ADD COLUMN `quote_volume`           DECIMAL(32, 4) NOT NULL DEFAULT 0.0,
-    ADD COLUMN `taker_buy_base_volume`  DECIMAL(16, 8) NOT NULL DEFAULT 0.0,
-    ADD COLUMN `taker_buy_quote_volume` DECIMAL(32, 4) NOT NULL DEFAULT 0.0;
+    ADD COLUMN `quote_volume`           DECIMAL(32, 8) NOT NULL DEFAULT 0.0,
+    ADD COLUMN `taker_buy_base_volume`  DECIMAL(32, 8) NOT NULL DEFAULT 0.0,
+    ADD COLUMN `taker_buy_quote_volume` DECIMAL(32, 8) NOT NULL DEFAULT 0.0;
 -- +end
 
 -- +down
diff --git a/migrations/mysql/20211204014905_update_taker_buy_base_volumn.sql b/migrations/mysql/20211204014905_update_taker_buy_base_volumn.sql
deleted file mode 100644
index 15d236a03..000000000
--- a/migrations/mysql/20211204014905_update_taker_buy_base_volumn.sql
+++ /dev/null
@@ -1,21 +0,0 @@
--- +up
--- +begin
-ALTER TABLE binance_klines CHANGE taker_buy_base_volume taker_buy_base_volume decimal(32,8) NOT NULL;
--- +end
--- +begin
-ALTER TABLE max_klines CHANGE taker_buy_base_volume taker_buy_base_volume decimal(32,8) NOT NULL;
--- +end
--- +begin
-ALTER TABLE okex_klines CHANGE taker_buy_base_volume taker_buy_base_volume decimal(32,8) NOT NULL;
--- +end
-
--- +down
--- +begin
-ALTER TABLE binance_klines CHANGE taker_buy_base_volume taker_buy_base_volume decimal(16,8) NOT NULL;
--- +end
--- +begin
-ALTER TABLE max_klines CHANGE taker_buy_base_volume taker_buy_base_volume decimal(16,8) NOT NULL;
--- +end
--- +begin
-ALTER TABLE okex_klines CHANGE taker_buy_base_volume taker_buy_base_volume decimal(16,8) NOT NULL;
--- +end
diff --git a/migrations/mysql/20211226022411_add_kucoin_klines.sql b/migrations/mysql/20211226022411_add_kucoin_klines.sql
new file mode 100644
index 000000000..4d65d58ef
--- /dev/null
+++ b/migrations/mysql/20211226022411_add_kucoin_klines.sql
@@ -0,0 +1,10 @@
+-- +up
+-- +begin
+CREATE TABLE `kucoin_klines` LIKE `binance_klines`;
+-- +end
+
+-- +down
+
+-- +begin
+DROP TABLE `kucoin_klines`;
+-- +end
diff --git a/migrations/sqlite3/20211204014905_update_taker_buy_base_volumn.sql b/migrations/sqlite3/20211204014905_update_taker_buy_base_volumn.sql
deleted file mode 100644
index a88ad32d4..000000000
--- a/migrations/sqlite3/20211204014905_update_taker_buy_base_volumn.sql
+++ /dev/null
@@ -1,8 +0,0 @@
--- +up
--- +begin
--- +end
-
--- +down
-
--- +begin
--- +end
diff --git a/migrations/sqlite3/20211211020303_add_ftx_kline.sql b/migrations/sqlite3/20211211020303_add_ftx_kline.sql
index 83da4ff73..0b34d02e8 100644
--- a/migrations/sqlite3/20211211020303_add_ftx_kline.sql
+++ b/migrations/sqlite3/20211211020303_add_ftx_kline.sql
@@ -26,5 +26,5 @@ CREATE TABLE `ftx_klines`
 -- +down
 
 -- +begin
-drop table ftx_klines;
+DROP TABLE ftx_klines;
 -- +end
diff --git a/migrations/sqlite3/20211226022411_add_kucoin_klines.sql b/migrations/sqlite3/20211226022411_add_kucoin_klines.sql
new file mode 100644
index 000000000..c53a00193
--- /dev/null
+++ b/migrations/sqlite3/20211226022411_add_kucoin_klines.sql
@@ -0,0 +1,29 @@
+-- +up
+-- +begin
+CREATE TABLE `kucoin_klines`
+(
+    `gid`                    INTEGER PRIMARY KEY AUTOINCREMENT,
+    `exchange`               VARCHAR(10)    NOT NULL,
+    `start_time`             DATETIME(3)    NOT NULL,
+    `end_time`               DATETIME(3)    NOT NULL,
+    `interval`               VARCHAR(3)     NOT NULL,
+    `symbol`                 VARCHAR(7)     NOT NULL,
+    `open`                   DECIMAL(16, 8) NOT NULL,
+    `high`                   DECIMAL(16, 8) NOT NULL,
+    `low`                    DECIMAL(16, 8) NOT NULL,
+    `close`                  DECIMAL(16, 8) NOT NULL DEFAULT 0.0,
+    `volume`                 DECIMAL(16, 8) NOT NULL DEFAULT 0.0,
+    `closed`                 BOOLEAN        NOT NULL DEFAULT TRUE,
+    `last_trade_id`          INT            NOT NULL DEFAULT 0,
+    `num_trades`             INT            NOT NULL DEFAULT 0,
+    `quote_volume`           DECIMAL        NOT NULL DEFAULT 0.0,
+    `taker_buy_base_volume`  DECIMAL        NOT NULL DEFAULT 0.0,
+    `taker_buy_quote_volume` DECIMAL        NOT NULL DEFAULT 0.0
+);
+-- +end
+
+-- +down
+
+-- +begin
+DROP TABLE kucoin_klines;
+-- +end