Crate mz_pgwire_common

Common PostgreSQL network (“wire”) protocol logic.

Modules

• codec 🔒
  Encoding/decoding of messages in pgwire. See “Frontend/Backend Protocol: Message Formats” in the PostgreSQL reference for the specification.
• conn 🔒
• format 🔒
• message 🔒
• severity 🔒

Structs

• ConnectionCounter
• ConnectionHandle
  Handle to an open connection, allows us to maintain a count of all connections.
• Cursor
  Decodes data within pgwire messages.
• ErrorResponse
• UserMetadata
  Metadata about a user that is required to allocate a ConnectionHandle.

Enums

• CodecError
• Conn
• ConnectionError
• DecodeState
• Format
  The encoding format for a mz_pgrepr::Value.
• FrontendMessage
  A decoded frontend pgwire message, representing instructions for the backend.
• FrontendStartupMessage
  Like FrontendMessage, but only the messages that can occur during startup protocol negotiation.
• Severity

Constants

• ACCEPT_SSL_ENCRYPTION
• CONN_UUID_KEY
• MAX_REQUEST_SIZE
  Maximum allowed size for a request.
• MZ_FORWARDED_FOR_KEY
• REJECT_ENCRYPTION
• VERSIONS
• VERSION_3
• VERSION_CANCEL
• VERSION_GSSENC
• VERSION_SSL

Traits

• Pgbuf

Functions

• decode_startup
• input_err
  Constructs an error indicating that the client has violated the pgwire protocol.
• parse_frame_len