Define enum types for all PostgreSQL message types.
| Enumerator |
|---|
| Frontend_StartupMessage | Startup message (first message in connection)
|
| Frontend_SSLRequest | SSL request code (sent by client to request SSL)
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| Frontend_CancelRequest | Cancel request (sent by client to cancel a running query)
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| Frontend_GSSENCRequest | GSSAPI encryption request.
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| Frontend_Query | Simple query message.
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| Frontend_Parse | Parse message (prepared statement)
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| Frontend_Bind | Bind message (portal binding)
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| Frontend_Execute | Execute message (portal execution)
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| Frontend_Close | Close message (close a prepared statement or portal)
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| Frontend_Describe | Describe message (describe a prepared statement or portal)
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| Frontend_FunctionCall | Function call message.
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| Frontend_Flush | Flush message.
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| Frontend_Sync | Sync message (sync after batch)
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| Frontend_CopyData | Copy data message (during COPY)
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| Frontend_CopyDone | Copy done message (during COPY)
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| Frontend_CopyFail | Copy fail message (during COPY)
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| Frontend_Terminate | Terminate message (disconnect)
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| Frontend_Unknown | Unknown frontend message type.
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| Backend_AuthenticationOk | Authentication successful.
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| Backend_AuthenticationKerberosV4 | Authentication using Kerberos V4.
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| Backend_AuthenticationKerberosV5 | Authentication using Kerberos V5.
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| Backend_AuthenticationCleartextPassword | Authentication using cleartext password.
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| Backend_AuthenticationMD5Password | Authentication using MD5 password.
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| Backend_AuthenticationGSS | Authentication using GSSAPI.
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| Backend_AuthenticationGSSContinue | GSSAPI authentication continues.
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| Backend_AuthenticationSSPI | Authentication using SSPI.
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| Backend_AuthenticationSASL | SASL authentication mechanism list.
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| Backend_AuthenticationSASLContinue | SASL authentication continues.
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| Backend_AuthenticationSASLFinal | SASL authentication final message.
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| Backend_BackendKeyData | Backend key data (secret key for cancel)
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| Backend_BindComplete | Bind complete.
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| Backend_CloseComplete | Close complete.
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| Backend_CommandComplete | Command complete (after query execution)
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| Backend_CopyData | Copy data (during COPY)
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| Backend_CopyDone | Copy done (during COPY)
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| Backend_CopyInResponse | Copy in response (during COPY from client)
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| Backend_CopyOutResponse | Copy out response (during COPY to client)
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| Backend_CopyBothResponse | Copy both response (during COPY bidirectional)
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| Backend_DataRow | Data row (result set)
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| Backend_EmptyQueryResponse | Empty query response.
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| Backend_ErrorResponse | Error response.
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| Backend_FunctionCallResponse | Function call response.
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| Backend_NegotiateProtocolVersion | Negotiate protocol version.
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| Backend_NoData | No data (for queries that don't return rows)
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| Backend_NoticeResponse | Notice response (warning)
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| Backend_NotificationResponse | Notification response (LISTEN/NOTIFY)
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| Backend_ParameterDescription | Parameter description (for prepared statements)
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| Backend_ParameterStatus | Parameter status (runtime parameter setting)
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| Backend_ParseComplete | Parse complete.
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| Backend_PortalSuspended | Portal suspended (during cursor fetch)
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| Backend_ReadyForQuery | Ready for query (idle state)
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| Backend_RowDescription | Row description (column definitions)
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| Backend_Unknown | Unknown backend message type.
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