lychiyu/bbgo_origin
1
0
Fork 0
mirror of https://github.com/c9s/bbgo.git synced 2024-11-21 22:43:52 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

fix built-in migrations

Browse Source
This commit is contained in:
c9s 2021-01-15 10:31:37 +08:00
parent d04e1e7816
commit 293d889276
19 changed files with 65 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Makefile
View File

@ -27,6 +27,9 @@ dist: bin-dir bbgo-linux bbgo-darwin
mkdir -p $(DIST_DIR)
tar -C $(BUILD_DIR) -cvzf $(DIST_DIR)/bbgo-$$(git describe --tags).tar.gz .
migrations:
rockhopper compile --config rockhopper.yaml --output pkg/migrations
docker:
GOPATH=$(PWD)/.mod go mod download
docker build --build-arg GO_MOD_CACHE=.mod --tag yoanlin/bbgo .
@ -36,4 +39,4 @@ docker-push:
docker push yoanlin/bbgo
bash -c "[[ -n $(DOCKER_TAG) ]] && docker push yoanlin/bbgo:$(DOCKER_TAG)"
.PHONY: dist
.PHONY: dist migrations

2
go.mod
View File

@ -8,7 +8,7 @@ require (
github.com/DATA-DOG/go-sqlmock v1.5.0
github.com/adshao/go-binance/v2 v2.2.1-0.20210108025425-9a582c63144e
github.com/c9s/goose v0.0.0-20200415105707-8da682162a5b
github.com/c9s/rockhopper v1.2.1-0.20210114070642-bde97ed28999
github.com/c9s/rockhopper v1.2.1-0.20210115022144-cc77e66fc34f
github.com/codingconcepts/env v0.0.0-20200821220118-a8fbf8d84482
github.com/fastly/go-utils v0.0.0-20180712184237-d95a45783239 // indirect
github.com/go-redis/redis/v8 v8.4.0

6
go.sum
View File

@ -43,6 +43,12 @@ github.com/c9s/rockhopper v1.2.1-0.20210114064926-84f8d06c527b h1:D4TpmOWK8GVV7b
github.com/c9s/rockhopper v1.2.1-0.20210114064926-84f8d06c527b/go.mod h1:KJnQjZSrWA83jjwGF/+O7Y96VCVirYTYEvXJJOc6kMU=
github.com/c9s/rockhopper v1.2.1-0.20210114070642-bde97ed28999 h1:++sXjheN0ZuQtOvzqnCx/jCs4wDSQoj2GMEbE1UvsGE=
github.com/c9s/rockhopper v1.2.1-0.20210114070642-bde97ed28999/go.mod h1:KJnQjZSrWA83jjwGF/+O7Y96VCVirYTYEvXJJOc6kMU=
github.com/c9s/rockhopper v1.2.1-0.20210115015707-d3b0b1892dfd h1:Q3MLSogx558Xnc43uBFbPnlIQvI3mThaAc/buea/mQ4=
github.com/c9s/rockhopper v1.2.1-0.20210115015707-d3b0b1892dfd/go.mod h1:KJnQjZSrWA83jjwGF/+O7Y96VCVirYTYEvXJJOc6kMU=
github.com/c9s/rockhopper v1.2.1-0.20210115020622-659f1b03767b h1:1Ixa0xWAD3KADLCEb5sHAz/3rjP47XqHRW3zK6oz1Sk=
github.com/c9s/rockhopper v1.2.1-0.20210115020622-659f1b03767b/go.mod h1:KJnQjZSrWA83jjwGF/+O7Y96VCVirYTYEvXJJOc6kMU=
github.com/c9s/rockhopper v1.2.1-0.20210115022144-cc77e66fc34f h1:n1Ly7178MJj+GQB38q4dV66QktUvzEi2rA7xCtTy6Ck=
github.com/c9s/rockhopper v1.2.1-0.20210115022144-cc77e66fc34f/go.mod h1:KJnQjZSrWA83jjwGF/+O7Y96VCVirYTYEvXJJOc6kMU=
github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=

8
migrations/20200721225616_trades.sql
View File

@ -1,5 +1,6 @@
-- +up
CREATE TABLE `trades` (
CREATE TABLE `trades`
(
`gid` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
`id` BIGINT UNSIGNED,
@ -17,7 +18,6 @@ CREATE TABLE `trades` (
PRIMARY KEY (`gid`),
UNIQUE KEY `id` (`id`)
) ENGINE=InnoDB;
-- +goose Down
);
-- +down
DROP TABLE `trades`;

4
migrations/20200819054742_trade_index.sql
View File

@ -1,9 +1,9 @@
-- +goose Up
-- +up
CREATE INDEX trades_symbol ON trades(symbol);
CREATE INDEX trades_symbol_fee_currency ON trades(symbol, fee_currency, traded_at);
CREATE INDEX trades_traded_at_symbol ON trades(traded_at, symbol);
-- +goose Down
-- +down
DROP INDEX trades_symbol ON trades;
DROP INDEX trades_symbol_fee_currency ON trades;
DROP INDEX trades_traded_at_symbol ON trades;

7
migrations/20201102222546_orders.sql
View File

@ -1,4 +1,4 @@
-- +goose Up
-- +up
CREATE TABLE `orders`
(
`gid` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
@ -21,7 +21,6 @@ CREATE TABLE `orders`
`updated_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
PRIMARY KEY (`gid`)
) ENGINE = InnoDB;
-- +goose Down
);
-- +down
DROP TABLE `orders`;

4
migrations/20201103173342_trades_add_order_id.sql
View File

@ -1,7 +1,7 @@
-- +goose Up
-- +up
ALTER TABLE `trades`
ADD COLUMN `order_id` BIGINT UNSIGNED NOT NULL;
-- +goose Down
-- +down
ALTER TABLE `trades`
DROP COLUMN `order_id`;

4
migrations/20201105092857_trades_index_fix.sql
View File

@ -1,4 +1,4 @@
-- +goose Up
-- +up
DROP INDEX trades_symbol ON trades;
DROP INDEX trades_symbol_fee_currency ON trades;
DROP INDEX trades_traded_at_symbol ON trades;
@ -7,7 +7,7 @@ CREATE INDEX trades_symbol ON trades (exchange, symbol);
CREATE INDEX trades_symbol_fee_currency ON trades (exchange, symbol, fee_currency, traded_at);
CREATE INDEX trades_traded_at_symbol ON trades (exchange, traded_at, symbol);
-- +goose Down
-- +down
DROP INDEX trades_symbol ON trades;
DROP INDEX trades_symbol_fee_currency ON trades;
DROP INDEX trades_traded_at_symbol ON trades;

4
migrations/20201105093056_orders_add_index.sql
View File

@ -1,7 +1,7 @@
-- +goose Up
-- +up
CREATE INDEX orders_symbol ON orders (exchange, symbol);
CREATE UNIQUE INDEX orders_order_id ON orders (order_id, exchange);
-- +goose Down
-- +down
DROP INDEX orders_symbol ON orders;
DROP INDEX orders_order_id ON orders;

6
migrations/20201106114742_klines.sql
View File

@ -1,4 +1,4 @@
-- +goose Up
-- +up
CREATE TABLE `klines`
(
`gid` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
@ -18,14 +18,14 @@ CREATE TABLE `klines`
PRIMARY KEY (`gid`)
) ENGINE = InnoDB;
);
CREATE INDEX `klines_end_time_symbol_interval` ON klines (`end_time`, `symbol`, `interval`);
CREATE TABLE `okex_klines` LIKE `klines`;
CREATE TABLE `binance_klines` LIKE `klines`;
CREATE TABLE `max_klines` LIKE `klines`;
-- +goose Down
-- +down
DROP INDEX `klines_end_time_symbol_interval` ON `klines`;
DROP TABLE `binance_klines`;
DROP TABLE `okex_klines`;

4
migrations/20201211175751_fix_symbol_length.sql
View File

@ -1,7 +1,7 @@
-- +goose Up
-- +up
ALTER TABLE trades MODIFY COLUMN symbol VARCHAR(9);
ALTER TABLE orders MODIFY COLUMN symbol VARCHAR(9);
-- +goose Down
-- +down
ALTER TABLE trades MODIFY COLUMN symbol VARCHAR(8);
ALTER TABLE orders MODIFY COLUMN symbol VARCHAR(8);

7
pkg/migrations/20200721225616_trades.go
View File

@ -1,7 +1,6 @@
package migrations
import (
"database/sql"
"context"
"github.com/c9s/rockhopper"
@ -11,10 +10,10 @@ func init() {
rockhopper.AddMigration(upTrades, downTrades)
}
func upTrades(ctx context.Context, tx *sql.Tx) (err error) {
func upTrades(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is applied.
_, err = tx.ExecContext(ctx, "CREATE TABLE `trades` (\n `gid` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,\n `id` BIGINT UNSIGNED,\n `exchange` VARCHAR(24) NOT NULL DEFAULT '',\n `symbol` VARCHAR(8) NOT NULL,\n `price` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `quantity` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `quote_quantity` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `fee` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `fee_currency` VARCHAR(4) NOT NULL,\n `is_buyer` BOOLEAN NOT NULL DEFAULT FALSE,\n `is_maker` BOOLEAN NOT NULL DEFAULT FALSE,\n `side` VARCHAR(4) NOT NULL DEFAULT '',\n `traded_at` DATETIME(3) NOT NULL,\n PRIMARY KEY (`gid`),\n UNIQUE KEY `id` (`id`)\n) ENGINE=InnoDB;")
_, err = tx.ExecContext(ctx, "CREATE TABLE `trades`\n(\n `gid` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,\n `id` BIGINT UNSIGNED,\n `exchange` VARCHAR(24) NOT NULL DEFAULT '',\n `symbol` VARCHAR(8) NOT NULL,\n `price` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `quantity` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `quote_quantity` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `fee` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `fee_currency` VARCHAR(4) NOT NULL,\n `is_buyer` BOOLEAN NOT NULL DEFAULT FALSE,\n `is_maker` BOOLEAN NOT NULL DEFAULT FALSE,\n `side` VARCHAR(4) NOT NULL DEFAULT '',\n `traded_at` DATETIME(3) NOT NULL,\n PRIMARY KEY (`gid`),\n UNIQUE KEY `id` (`id`)\n);")
if err != nil {
return err
}
@ -22,7 +21,7 @@ func upTrades(ctx context.Context, tx *sql.Tx) (err error) {
return err
}
func downTrades(ctx context.Context, tx *sql.Tx) (err error) {
func downTrades(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is rolled back.
_, err = tx.ExecContext(ctx, "DROP TABLE `trades`;")

5
pkg/migrations/20200819054742_trade_index.go
View File

@ -1,7 +1,6 @@
package migrations
import (
"database/sql"
"context"
"github.com/c9s/rockhopper"
@ -11,7 +10,7 @@ func init() {
rockhopper.AddMigration(upTradeIndex, downTradeIndex)
}
func upTradeIndex(ctx context.Context, tx *sql.Tx) (err error) {
func upTradeIndex(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is applied.
_, err = tx.ExecContext(ctx, "CREATE INDEX trades_symbol ON trades(symbol);")
@ -32,7 +31,7 @@ func upTradeIndex(ctx context.Context, tx *sql.Tx) (err error) {
return err
}
func downTradeIndex(ctx context.Context, tx *sql.Tx) (err error) {
func downTradeIndex(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is rolled back.
_, err = tx.ExecContext(ctx, "DROP INDEX trades_symbol ON trades;")

7
pkg/migrations/20201102222546_orders.go
View File

@ -1,7 +1,6 @@
package migrations
import (
"database/sql"
"context"
"github.com/c9s/rockhopper"
@ -11,10 +10,10 @@ func init() {
rockhopper.AddMigration(upOrders, downOrders)
}
func upOrders(ctx context.Context, tx *sql.Tx) (err error) {
func upOrders(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is applied.
_, err = tx.ExecContext(ctx, "CREATE TABLE `orders`\n(\n `gid` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,\n `exchange` VARCHAR(24) NOT NULL DEFAULT '',\n -- order_id is the order id returned from the exchange\n `order_id` BIGINT UNSIGNED NOT NULL,\n `client_order_id` VARCHAR(42) NOT NULL DEFAULT '',\n `order_type` VARCHAR(16) NOT NULL,\n `symbol` VARCHAR(8) NOT NULL,\n `status` VARCHAR(12) NOT NULL,\n `time_in_force` VARCHAR(4) NOT NULL,\n `price` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `stop_price` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `quantity` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `executed_quantity` DECIMAL(16, 8) UNSIGNED NOT NULL DEFAULT 0.0,\n `side` VARCHAR(4) NOT NULL DEFAULT '',\n `is_working` BOOL NOT NULL DEFAULT FALSE,\n `created_at` DATETIME(3) NOT NULL,\n `updated_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),\n PRIMARY KEY (`gid`)\n) ENGINE = InnoDB;")
_, err = tx.ExecContext(ctx, "CREATE TABLE `orders`\n(\n `gid` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,\n `exchange` VARCHAR(24) NOT NULL DEFAULT '',\n -- order_id is the order id returned from the exchange\n `order_id` BIGINT UNSIGNED NOT NULL,\n `client_order_id` VARCHAR(42) NOT NULL DEFAULT '',\n `order_type` VARCHAR(16) NOT NULL,\n `symbol` VARCHAR(8) NOT NULL,\n `status` VARCHAR(12) NOT NULL,\n `time_in_force` VARCHAR(4) NOT NULL,\n `price` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `stop_price` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `quantity` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `executed_quantity` DECIMAL(16, 8) UNSIGNED NOT NULL DEFAULT 0.0,\n `side` VARCHAR(4) NOT NULL DEFAULT '',\n `is_working` BOOL NOT NULL DEFAULT FALSE,\n `created_at` DATETIME(3) NOT NULL,\n `updated_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),\n PRIMARY KEY (`gid`)\n);")
if err != nil {
return err
}
@ -22,7 +21,7 @@ func upOrders(ctx context.Context, tx *sql.Tx) (err error) {
return err
}
func downOrders(ctx context.Context, tx *sql.Tx) (err error) {
func downOrders(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is rolled back.
_, err = tx.ExecContext(ctx, "DROP TABLE `orders`;")

5
pkg/migrations/20201103173342_trades_add_order_id.go
View File

@ -1,7 +1,6 @@
package migrations
import (
"database/sql"
"context"
"github.com/c9s/rockhopper"
@ -11,7 +10,7 @@ func init() {
rockhopper.AddMigration(upTradesAddOrderId, downTradesAddOrderId)
}
func upTradesAddOrderId(ctx context.Context, tx *sql.Tx) (err error) {
func upTradesAddOrderId(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is applied.
_, err = tx.ExecContext(ctx, "ALTER TABLE `trades`\n ADD COLUMN `order_id` BIGINT UNSIGNED NOT NULL;")
@ -22,7 +21,7 @@ func upTradesAddOrderId(ctx context.Context, tx *sql.Tx) (err error) {
return err
}
func downTradesAddOrderId(ctx context.Context, tx *sql.Tx) (err error) {
func downTradesAddOrderId(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is rolled back.
_, err = tx.ExecContext(ctx, "ALTER TABLE `trades`\n DROP COLUMN `order_id`;")

5
pkg/migrations/20201105092857_trades_index_fix.go
View File

@ -1,7 +1,6 @@
package migrations
import (
"database/sql"
"context"
"github.com/c9s/rockhopper"
@ -11,7 +10,7 @@ func init() {
rockhopper.AddMigration(upTradesIndexFix, downTradesIndexFix)
}
func upTradesIndexFix(ctx context.Context, tx *sql.Tx) (err error) {
func upTradesIndexFix(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is applied.
_, err = tx.ExecContext(ctx, "DROP INDEX trades_symbol ON trades;")
@ -47,7 +46,7 @@ func upTradesIndexFix(ctx context.Context, tx *sql.Tx) (err error) {
return err
}
func downTradesIndexFix(ctx context.Context, tx *sql.Tx) (err error) {
func downTradesIndexFix(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is rolled back.
_, err = tx.ExecContext(ctx, "DROP INDEX trades_symbol ON trades;")

5
pkg/migrations/20201105093056_orders_add_index.go
View File

@ -1,7 +1,6 @@
package migrations
import (
"database/sql"
"context"
"github.com/c9s/rockhopper"
@ -11,7 +10,7 @@ func init() {
rockhopper.AddMigration(upOrdersAddIndex, downOrdersAddIndex)
}
func upOrdersAddIndex(ctx context.Context, tx *sql.Tx) (err error) {
func upOrdersAddIndex(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is applied.
_, err = tx.ExecContext(ctx, "CREATE INDEX orders_symbol ON orders (exchange, symbol);")
@ -27,7 +26,7 @@ func upOrdersAddIndex(ctx context.Context, tx *sql.Tx) (err error) {
return err
}
func downOrdersAddIndex(ctx context.Context, tx *sql.Tx) (err error) {
func downOrdersAddIndex(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is rolled back.
_, err = tx.ExecContext(ctx, "DROP INDEX orders_symbol ON orders;")

7
pkg/migrations/20201106114742_klines.go
View File

@ -1,7 +1,6 @@
package migrations
import (
"database/sql"
"context"
"github.com/c9s/rockhopper"
@ -11,10 +10,10 @@ func init() {
rockhopper.AddMigration(upKlines, downKlines)
}
func upKlines(ctx context.Context, tx *sql.Tx) (err error) {
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` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,\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) UNSIGNED NOT NULL,\n `high` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `low` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `close` DECIMAL(16, 8) UNSIGNED NOT NULL DEFAULT 0.0,\n `volume` DECIMAL(16, 8) UNSIGNED NOT NULL DEFAULT 0.0,\n `closed` BOOL NOT NULL DEFAULT TRUE,\n `last_trade_id` INT UNSIGNED NOT NULL DEFAULT 0,\n `num_trades` INT UNSIGNED NOT NULL DEFAULT 0,\n PRIMARY KEY (`gid`)\n) ENGINE = InnoDB;")
_, err = tx.ExecContext(ctx, "CREATE TABLE `klines`\n(\n `gid` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,\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) UNSIGNED NOT NULL,\n `high` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `low` DECIMAL(16, 8) UNSIGNED NOT NULL,\n `close` DECIMAL(16, 8) UNSIGNED NOT NULL DEFAULT 0.0,\n `volume` DECIMAL(16, 8) UNSIGNED NOT NULL DEFAULT 0.0,\n `closed` BOOL NOT NULL DEFAULT TRUE,\n `last_trade_id` INT UNSIGNED NOT NULL DEFAULT 0,\n `num_trades` INT UNSIGNED NOT NULL DEFAULT 0,\n PRIMARY KEY (`gid`)\n);")
if err != nil {
return err
}
@ -42,7 +41,7 @@ func upKlines(ctx context.Context, tx *sql.Tx) (err error) {
return err
}
func downKlines(ctx context.Context, tx *sql.Tx) (err error) {
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 `klines_end_time_symbol_interval` ON `klines`;")

5
pkg/migrations/20201211175751_fix_symbol_length.go
View File

@ -1,7 +1,6 @@
package migrations
import (
"database/sql"
"context"
"github.com/c9s/rockhopper"
@ -11,7 +10,7 @@ func init() {
rockhopper.AddMigration(upFixSymbolLength, downFixSymbolLength)
}
func upFixSymbolLength(ctx context.Context, tx *sql.Tx) (err error) {
func upFixSymbolLength(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is applied.
_, err = tx.ExecContext(ctx, "ALTER TABLE trades MODIFY COLUMN symbol VARCHAR(9);")
@ -27,7 +26,7 @@ func upFixSymbolLength(ctx context.Context, tx *sql.Tx) (err error) {
return err
}
func downFixSymbolLength(ctx context.Context, tx *sql.Tx) (err error) {
func downFixSymbolLength(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
// This code is executed when the migration is rolled back.
_, err = tx.ExecContext(ctx, "ALTER TABLE trades MODIFY COLUMN symbol VARCHAR(8);")