Function starRocksBackendAlive

backend/common/testcontainer/testcontainer.go:364–403

starRocksBackendAlive reports whether SHOW BACKENDS lists a backend with Alive=true.

(ctx context.Context, db *sql.DB)

// starRocksBackendAlive reports whether SHOW BACKENDS lists a backend with Alive=true.
func starRocksBackendAlive(ctx context.Context, db *sql.DB) bool {
	rows, err := db.QueryContext(ctx, "SHOW BACKENDS")
	if err != nil {
		return false
	}
	defer rows.Close()
	cols, err := rows.Columns()
	if err != nil {
		return false
	}
	aliveIdx := -1
	for i, c := range cols {
		if strings.EqualFold(c, "Alive") {
			aliveIdx = i
			break
		}
	}
	if aliveIdx < 0 {
		return false
	}
	alive := false
	for rows.Next() {
		vals := make([]sql.RawBytes, len(cols))
		ptrs := make([]any, len(cols))
		for i := range vals {
			ptrs[i] = &vals[i]
		}
		if err := rows.Scan(ptrs...); err != nil {
			return false
		}
		if strings.EqualFold(string(vals[aliveIdx]), "true") {
			alive = true
			break
		}
	}
	if err := rows.Err(); err != nil {
		return false
	}
	return alive
}

// GetMSSQLContainer creates a Microsoft SQL Server container for testing
func GetMSSQLContainer(ctx context.Context) (retC *Container, retErr error) {