1package dialectquery
 2
 3import "fmt"
 4
 5type Starrocks struct{}
 6
 7var _ Querier = (*Starrocks)(nil)
 8
 9func (m *Starrocks) CreateTable(tableName string) string {
10	q := `CREATE TABLE IF NOT EXISTS %s (
11		id bigint NOT NULL AUTO_INCREMENT,
12		version_id bigint NOT NULL,
13		is_applied boolean NOT NULL,
14		tstamp datetime NULL default CURRENT_TIMESTAMP
15	)
16	PRIMARY KEY (id)
17	DISTRIBUTED BY HASH (id)
18	ORDER BY (id,version_id)`
19	return fmt.Sprintf(q, tableName)
20}
21
22func (m *Starrocks) InsertVersion(tableName string) string {
23	q := `INSERT INTO %s (version_id, is_applied) VALUES (?, ?)`
24	return fmt.Sprintf(q, tableName)
25}
26
27func (m *Starrocks) DeleteVersion(tableName string) string {
28	q := `DELETE FROM %s WHERE version_id=?`
29	return fmt.Sprintf(q, tableName)
30}
31
32func (m *Starrocks) GetMigrationByVersion(tableName string) string {
33	q := `SELECT tstamp, is_applied FROM %s WHERE version_id=? ORDER BY tstamp DESC LIMIT 1`
34	return fmt.Sprintf(q, tableName)
35}
36
37func (m *Starrocks) ListMigrations(tableName string) string {
38	q := `SELECT version_id, is_applied from %s ORDER BY id DESC`
39	return fmt.Sprintf(q, tableName)
40}
41
42func (m *Starrocks) GetLatestVersion(tableName string) string {
43	q := `SELECT MAX(version_id) FROM %s`
44	return fmt.Sprintf(q, tableName)
45}