From f9dd76d4cbcd924a8073543ce7f56b7b5428e8c5 Mon Sep 17 00:00:00 2001
From: c9s <yoanlin93@gmail.com>
Date: Fri, 20 May 2022 16:30:29 +0800
Subject: [PATCH] add migration script to add unique index for kline tables

---
 .../mysql/20220520140707_kline_unique_idx.sql | 68 +++++++++++++++++++
 .../20220520140707_kline_unique_idx.sql       | 10 +++
 2 files changed, 78 insertions(+)
 create mode 100644 migrations/mysql/20220520140707_kline_unique_idx.sql
 create mode 100644 migrations/sqlite3/20220520140707_kline_unique_idx.sql

diff --git a/migrations/mysql/20220520140707_kline_unique_idx.sql b/migrations/mysql/20220520140707_kline_unique_idx.sql
new file mode 100644
index 000000000..43ba99db6
--- /dev/null
+++ b/migrations/mysql/20220520140707_kline_unique_idx.sql
@@ -0,0 +1,68 @@
+-- +up
+
+-- +begin
+TRUNCATE TABLE `binance_klines`;
+-- +end
+
+-- +begin
+TRUNCATE TABLE `max_klines`;
+-- +end
+
+-- +begin
+TRUNCATE TABLE `ftx_klines`;
+-- +end
+
+-- +begin
+TRUNCATE TABLE `kucoin_klines`;
+-- +end
+
+-- +begin
+TRUNCATE TABLE `okex_klines`;
+-- +end
+
+-- +begin
+CREATE UNIQUE INDEX idx_kline_binance_unique
+    ON binance_klines (`symbol`, `interval`, `start_time`);
+-- +end
+
+-- +begin
+CREATE UNIQUE INDEX idx_kline_max_unique
+    ON max_klines (`symbol`, `interval`, `start_time`);
+-- +end
+
+-- +begin
+CREATE UNIQUE INDEX `idx_kline_ftx_unique`
+    ON ftx_klines (`symbol`, `interval`, `start_time`);
+-- +end
+
+-- +begin
+CREATE UNIQUE INDEX `idx_kline_kucoin_unique`
+    ON kucoin_klines (`symbol`, `interval`, `start_time`);
+-- +end
+
+-- +begin
+CREATE UNIQUE INDEX `idx_kline_okex_unique`
+    ON okex_klines (`symbol`, `interval`, `start_time`);
+-- +end
+
+-- +down
+
+-- +begin
+DROP INDEX `idx_kline_ftx_unique` ON `ftx_klines`;
+-- +end
+
+-- +begin
+DROP INDEX `idx_kline_max_unique` ON `max_klines`;
+-- +end
+
+-- +begin
+DROP INDEX `idx_kline_binance_unique` ON `binance_klines`;
+-- +end
+
+-- +begin
+DROP INDEX `idx_kline_kucoin_unique` ON `kucoin_klines`;
+-- +end
+
+-- +begin
+DROP INDEX `idx_kline_okex_unique` ON `okex_klines`;
+-- +end
diff --git a/migrations/sqlite3/20220520140707_kline_unique_idx.sql b/migrations/sqlite3/20220520140707_kline_unique_idx.sql
new file mode 100644
index 000000000..d7ff4e671
--- /dev/null
+++ b/migrations/sqlite3/20220520140707_kline_unique_idx.sql
@@ -0,0 +1,10 @@
+-- +up
+-- +begin
+SELECT 'up SQL query';
+-- +end
+
+-- +down
+
+-- +begin
+SELECT 'down SQL query';
+-- +end