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20201106114742_klines.go
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20201106114742_klines.go
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package sqlite3
import (
"context"
"github.com/c9s/rockhopper"
)
func init() {
AddMigration(upKlines, downKlines)
}
func upKlines(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is applied.
_, err = tx.ExecContext(ctx, "CREATE TABLE `klines`\n(\n `gid` INTEGER PRIMARY KEY AUTOINCREMENT,\n `exchange` VARCHAR(10) NOT NULL,\n `start_time` DATETIME(3) NOT NULL,\n `end_time` DATETIME(3) NOT NULL,\n `interval` VARCHAR(3) NOT NULL,\n `symbol` VARCHAR(7) NOT NULL,\n `open` DECIMAL(16, 8) NOT NULL,\n `high` DECIMAL(16, 8) NOT NULL,\n `low` DECIMAL(16, 8) NOT NULL,\n `close` DECIMAL(16, 8) NOT NULL DEFAULT 0.0,\n `volume` DECIMAL(16, 8) NOT NULL DEFAULT 0.0,\n `closed` BOOLEAN NOT NULL DEFAULT TRUE,\n `last_trade_id` INT NOT NULL DEFAULT 0,\n `num_trades` INT NOT NULL DEFAULT 0\n);")
if err != nil {
return err
}
_, err = tx.ExecContext(ctx, "CREATE TABLE `okex_klines`\n(\n `gid` INTEGER PRIMARY KEY AUTOINCREMENT,\n `exchange` VARCHAR(10) NOT NULL,\n `start_time` DATETIME(3) NOT NULL,\n `end_time` DATETIME(3) NOT NULL,\n `interval` VARCHAR(3) NOT NULL,\n `symbol` VARCHAR(7) NOT NULL,\n `open` DECIMAL(16, 8) NOT NULL,\n `high` DECIMAL(16, 8) NOT NULL,\n `low` DECIMAL(16, 8) NOT NULL,\n `close` DECIMAL(16, 8) NOT NULL DEFAULT 0.0,\n `volume` DECIMAL(16, 8) NOT NULL DEFAULT 0.0,\n `closed` BOOLEAN NOT NULL DEFAULT TRUE,\n `last_trade_id` INT NOT NULL DEFAULT 0,\n `num_trades` INT NOT NULL DEFAULT 0\n);")
if err != nil {
return err
}
_, err = tx.ExecContext(ctx, "CREATE TABLE `binance_klines`\n(\n `gid` INTEGER PRIMARY KEY AUTOINCREMENT,\n `exchange` VARCHAR(10) NOT NULL,\n `start_time` DATETIME(3) NOT NULL,\n `end_time` DATETIME(3) NOT NULL,\n `interval` VARCHAR(3) NOT NULL,\n `symbol` VARCHAR(7) NOT NULL,\n `open` DECIMAL(16, 8) NOT NULL,\n `high` DECIMAL(16, 8) NOT NULL,\n `low` DECIMAL(16, 8) NOT NULL,\n `close` DECIMAL(16, 8) NOT NULL DEFAULT 0.0,\n `volume` DECIMAL(16, 8) NOT NULL DEFAULT 0.0,\n `closed` BOOLEAN NOT NULL DEFAULT TRUE,\n `last_trade_id` INT NOT NULL DEFAULT 0,\n `num_trades` INT NOT NULL DEFAULT 0\n);")
if err != nil {
return err
}
_, err = tx.ExecContext(ctx, "CREATE TABLE `max_klines`\n(\n `gid` INTEGER PRIMARY KEY AUTOINCREMENT,\n `exchange` VARCHAR(10) NOT NULL,\n `start_time` DATETIME(3) NOT NULL,\n `end_time` DATETIME(3) NOT NULL,\n `interval` VARCHAR(3) NOT NULL,\n `symbol` VARCHAR(7) NOT NULL,\n `open` DECIMAL(16, 8) NOT NULL,\n `high` DECIMAL(16, 8) NOT NULL,\n `low` DECIMAL(16, 8) NOT NULL,\n `close` DECIMAL(16, 8) NOT NULL DEFAULT 0.0,\n `volume` DECIMAL(16, 8) NOT NULL DEFAULT 0.0,\n `closed` BOOLEAN NOT NULL DEFAULT TRUE,\n `last_trade_id` INT NOT NULL DEFAULT 0,\n `num_trades` INT NOT NULL DEFAULT 0\n);")
if err != nil {
return err
}
_, err = tx.ExecContext(ctx, "CREATE INDEX `klines_end_time_symbol_interval` ON `klines` (`end_time`, `symbol`, `interval`);\nCREATE INDEX `binance_klines_end_time_symbol_interval` ON `binance_klines` (`end_time`, `symbol`, `interval`);\nCREATE INDEX `okex_klines_end_time_symbol_interval` ON `okex_klines` (`end_time`, `symbol`, `interval`);\nCREATE INDEX `max_klines_end_time_symbol_interval` ON `max_klines` (`end_time`, `symbol`, `interval`);")
if err != nil {
return err
}
return err
}
func downKlines(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is rolled back.
_, err = tx.ExecContext(ctx, "DROP INDEX IF EXISTS `klines_end_time_symbol_interval`;")
if err != nil {
return err
}
_, err = tx.ExecContext(ctx, "DROP TABLE IF EXISTS `binance_klines`;")
if err != nil {
return err
}
_, err = tx.ExecContext(ctx, "DROP TABLE IF EXISTS `okex_klines`;")
if err != nil {
return err
}
_, err = tx.ExecContext(ctx, "DROP TABLE IF EXISTS `max_klines`;")
if err != nil {
return err
}
_, err = tx.ExecContext(ctx, "DROP TABLE IF EXISTS `klines`;")
if err != nil {
return err
}
return err
}