mirror of https://github.com/pressly/goose.git
40 lines
1.1 KiB
Go
40 lines
1.1 KiB
Go
package dialectquery
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import "fmt"
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type Clickhouse struct{}
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var _ Querier = (*Clickhouse)(nil)
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func (c *Clickhouse) CreateTable(tableName string) string {
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q := `CREATE TABLE IF NOT EXISTS %s (
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version_id Int64,
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is_applied UInt8,
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date Date default now(),
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tstamp DateTime default now()
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)
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ENGINE = MergeTree()
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ORDER BY (date)`
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return fmt.Sprintf(q, tableName)
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}
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func (c *Clickhouse) InsertVersion(tableName string) string {
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q := `INSERT INTO %s (version_id, is_applied) VALUES ($1, $2)`
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return fmt.Sprintf(q, tableName)
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}
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func (c *Clickhouse) DeleteVersion(tableName string) string {
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q := `ALTER TABLE %s DELETE WHERE version_id = $1 SETTINGS mutations_sync = 2`
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return fmt.Sprintf(q, tableName)
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}
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func (c *Clickhouse) GetMigrationByVersion(tableName string) string {
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q := `SELECT tstamp, is_applied FROM %s WHERE version_id = $1 ORDER BY tstamp DESC LIMIT 1`
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return fmt.Sprintf(q, tableName)
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}
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func (c *Clickhouse) ListMigrations(tableName string) string {
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q := `SELECT version_id, is_applied FROM %s ORDER BY version_id DESC`
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return fmt.Sprintf(q, tableName)
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}
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