types

Documentation

Index

• Constants
• type ClientMessage
• type ServerMessage
• type ServerStatus
• type Version

Constants

const (
	ServerIdle              = 'I'
	ServerTransactionBlock  = 'T'
	ServerTransactionFailed = 'E'
)

Possible values are 'I' if idle (not in a transaction block); 'T' if in a transaction block; or 'E' if in a failed transaction block (queries will be rejected until block is ended).

const (
	ClientBind        ClientMessage = 'B'
	ClientClose       ClientMessage = 'C'
	ClientCopyData    ClientMessage = 'd'
	ClientCopyDone    ClientMessage = 'c'
	ClientCopyFail    ClientMessage = 'f'
	ClientDescribe    ClientMessage = 'D'
	ClientExecute     ClientMessage = 'E'
	ClientFlush       ClientMessage = 'H'
	ClientParse       ClientMessage = 'P'
	ClientPassword    ClientMessage = 'p'
	ClientSimpleQuery ClientMessage = 'Q'
	ClientSync        ClientMessage = 'S'
	ClientTerminate   ClientMessage = 'X'

	ServerAuth                 ServerMessage = 'R'
	ServerBindComplete         ServerMessage = '2'
	ServerCommandComplete      ServerMessage = 'C'
	ServerCloseComplete        ServerMessage = '3'
	ServerCopyInResponse       ServerMessage = 'G'
	ServerDataRow              ServerMessage = 'D'
	ServerEmptyQuery           ServerMessage = 'I'
	ServerErrorResponse        ServerMessage = 'E'
	ServerNoticeResponse       ServerMessage = 'N'
	ServerNoData               ServerMessage = 'n'
	ServerParameterDescription ServerMessage = 't'
	ServerParameterStatus      ServerMessage = 'S'
	ServerParseComplete        ServerMessage = '1'
	ServerPortalSuspended      ServerMessage = 's'
	ServerReady                ServerMessage = 'Z'
	ServerRowDescription       ServerMessage = 'T'
)

http://www.postgresql.org/docs/9.4/static/protocol-message-formats.html

Types

type ClientMessage

type ClientMessage byte

ClientMessage represents a client pgwire message.

type ServerMessage

type ServerMessage byte

ServerMessage represents a server pgwire message.

type ServerStatus

type ServerStatus byte

ServerStatus indicates the current server status. Possible values are 'I' if idle (not in a transaction block); 'T' if in a transaction block; or 'E' if in a failed transaction block (queries will be rejected until block is ended).

type Version

type Version uint32

Version represents a connection version presented inside the connection header

const (
	Version30         Version = 196608   // (3 << 16) + 0
	VersionCancel     Version = 80877102 // (1234 << 16) + 5678
	VersionSSLRequest Version = 80877103 // (1234 << 16) + 5679
	VersionGSSENC     Version = 80877104 // (1234 << 16) + 5680
)

The below constants can occur during the first message a client sends to the server. There are two categories: protocol version and request code. The protocol version is (major version number << 16) + minor version number. Request codes are (1234 << 16) + 5678 + N, where N started at 0 and is increased by 1 for every new request code added, which happens rarely during major or minor Postgres releases.

See: https://www.postgresql.org/docs/current/protocol-message-formats.html