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Documentation

Index

• Constants
• Variables
• func CellLength(data []byte, pos int, typ byte, metadata uint16) (int, error)
• func CellValue(data []byte, pos int, typ byte, metadata uint16, field *querypb.Field) (sqltypes.Value, int, error)
• func ParseBinaryJSON(data []byte) (*json.Value, error)

Constants

const (
	// TypeDecimal is MYSQL_TYPE_DECIMAL. It is deprecated.
	TypeDecimal = 0

	// TypeTiny is MYSQL_TYPE_TINY
	TypeTiny = 1

	// TypeShort is MYSQL_TYPE_SHORT
	TypeShort = 2

	// TypeLong is MYSQL_TYPE_LONG
	TypeLong = 3

	// TypeFloat is MYSQL_TYPE_FLOAT
	TypeFloat = 4

	// TypeDouble is MYSQL_TYPE_DOUBLE
	TypeDouble = 5

	// TypeNull is MYSQL_TYPE_NULL
	TypeNull = 6

	// TypeTimestamp is MYSQL_TYPE_TIMESTAMP
	TypeTimestamp = 7

	// TypeLongLong is MYSQL_TYPE_LONGLONG
	TypeLongLong = 8

	// TypeInt24 is MYSQL_TYPE_INT24
	TypeInt24 = 9

	// TypeDate is MYSQL_TYPE_DATE
	TypeDate = 10

	// TypeTime is MYSQL_TYPE_TIME
	TypeTime = 11

	// TypeDateTime is MYSQL_TYPE_DATETIME
	TypeDateTime = 12

	// TypeYear is MYSQL_TYPE_YEAR
	TypeYear = 13

	// TypeNewDate is MYSQL_TYPE_NEWDATE
	TypeNewDate = 14

	// TypeVarchar is MYSQL_TYPE_VARCHAR
	TypeVarchar = 15

	// TypeBit is MYSQL_TYPE_BIT
	TypeBit = 16

	// TypeTimestamp2 is MYSQL_TYPE_TIMESTAMP2
	TypeTimestamp2 = 17

	// TypeDateTime2 is MYSQL_TYPE_DATETIME2
	TypeDateTime2 = 18

	// TypeTime2 is MYSQL_TYPE_TIME2
	TypeTime2 = 19

	// TypeJSON is MYSQL_TYPE_JSON
	TypeJSON = 245

	// TypeNewDecimal is MYSQL_TYPE_NEWDECIMAL
	TypeNewDecimal = 246

	// TypeEnum is MYSQL_TYPE_ENUM
	TypeEnum = 247

	// TypeSet is MYSQL_TYPE_SET
	TypeSet = 248

	// TypeTinyBlob is MYSQL_TYPE_TINY_BLOB
	TypeTinyBlob = 249

	// TypeMediumBlob is MYSQL_TYPE_MEDIUM_BLOB
	TypeMediumBlob = 250

	// TypeLongBlob is MYSQL_TYPE_LONG_BLOB
	TypeLongBlob = 251

	// TypeBlob is MYSQL_TYPE_BLOB
	TypeBlob = 252

	// TypeVarString is MYSQL_TYPE_VAR_STRING
	TypeVarString = 253

	// TypeString is MYSQL_TYPE_STRING
	TypeString = 254

	// TypeGeometry is MYSQL_TYPE_GEOMETRY
	TypeGeometry = 255
)

This is the data type for a field. Values taken from include/mysql/mysql_com.h

Variables

var ZeroTimestamp = []byte("0000-00-00 00:00:00")

ZeroTimestamp is the special value 0 for a timestamp.

Functions

func CellLength

func CellLength(data []byte, pos int, typ byte, metadata uint16) (int, error)

CellLength returns the new position after the field with the given type is read.

func CellValue

func CellValue(data []byte, pos int, typ byte, metadata uint16, field *querypb.Field) (sqltypes.Value, int, error)

CellValue returns the data for a cell as a sqltypes.Value, and how many bytes it takes. It uses source type in querypb.Type and vitess type byte to determine general shared aspects of types and the querypb.Field to determine other info specifically about its underlying column (SQL column type, column length, charset, etc)

func ParseBinaryJSON

func ParseBinaryJSON(data []byte) (*json.Value, error)

ParseBinaryJSON provides the parsing function from the mysql binary json representation to a JSON value instance.