const (
	// DefaultDatabase when connecting to ClickHouse
	DefaultDatabase = "default"
	// DefaultUsername when connecting to ClickHouse
	DefaultUsername = "default"
	// DefaultConnTimeout when connecting to ClickHouse
	DefaultConnTimeout = 5 * time.Second
	// DefaultReadTimeout when reading query results
	DefaultReadTimeout = time.Minute
	// DefaultWriteTimeout when sending queries
	DefaultWriteTimeout = time.Minute
)

var (
	ErrInsertInNotBatchMode = errors.New("insert statement supported only in the batch mode (use begin/commit)")
	ErrLimitDataRequestInTx = errors.New("data request has already been prepared in transaction")
)

type Clickhouse interface {
	Block() (*data.Block, error)
	Prepare(query string) (driver.Stmt, error)
	Begin() (driver.Tx, error)
	Commit() error
	Rollback() error
	Close() error
	WriteBlock(block *data.Block) error
}

type ColumnWriter interface {
	WriteDate(c int, v time.Time) error
	WriteDateNullable(c int, v *time.Time) error
	WriteDateTime(c int, v time.Time) error
	WriteDateTimeNullable(c int, v *time.Time) error
	WriteUInt8(c int, v uint8) error
	WriteUInt8Nullable(c int, v *uint8) error
	WriteUInt16(c int, v uint16) error
	WriteUInt16Nullable(c int, v *uint16) error
	WriteUInt32(c int, v uint32) error
	WriteUInt32Nullable(c int, v *uint32) error
	WriteUInt64(c int, v uint64) error
	WriteUInt64Nullable(c int, v *uint64) error
	WriteFloat32(c int, v float32) error
	WriteFloat32Nullable(c int, v *float32) error
	WriteFloat64(c int, v float64) error
	WriteFloat64Nullable(c int, v *float64) error
	WriteBytes(c int, v []byte) error
	WriteArray(c int, v interface{}) error
	WriteBytesNullable(c int, v *[]byte) error
	WriteArrayNullable(c int, v *interface{}) error
	WriteString(c int, v string) error
	WriteStringNullable(c int, v *string) error
	WriteFixedString(c int, v []byte) error
	WriteFixedStringNullable(c int, v *[]byte) error
}

type Date = types.Date

type DateTime = types.DateTime

type DialFunc func(network, address string, timeout time.Duration, config *tls.Config) (net.Conn, error)

type Exception struct {
	Code       int32
	Name       string
	Message    string
	StackTrace string
	// contains filtered or unexported fields
}

type ExternalTable struct {
	Name    string
	Values  [][]driver.Value
	Columns []column.Column
}

type UUID = types.UUID