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Extended query protocol: parse, bind, execute, describe FE/BE messages.

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Only lightly tested as yet, since libpq doesn't know anything about 'em.
This commit is contained in:
Tom Lane
2003-05-05 00:44:56 +00:00
parent a59793f82c
commit 16503e6fa4
17 changed files with 1336 additions and 268 deletions
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43
src/backend/tcop/dest.c
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@@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/dest.c,v 1.54 2003/04/26 20:22:59 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/dest.c,v 1.55 2003/05/05 00:44:56 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -91,10 +91,20 @@ DestToFunction(CommandDest dest)
switch (dest)
{
case Remote:
return printtup_create_DR(false);
return printtup_create_DR(false, true);
case RemoteInternal:
return printtup_create_DR(true);
return printtup_create_DR(true, true);
case RemoteExecute:
/* like Remote, but suppress output of T message */
return printtup_create_DR(false, false);
case RemoteExecuteInternal:
return printtup_create_DR(true, false);
case None:
return &donothingDR;
case Debug:
return &debugtupDR;
@@ -104,9 +114,6 @@ DestToFunction(CommandDest dest)
case Tuplestore:
return tstoreReceiverCreateDR();
case None:
return &donothingDR;
}
/* should never get here */
@@ -124,13 +131,15 @@ EndCommand(const char *commandTag, CommandDest dest)
{
case Remote:
case RemoteInternal:
case RemoteExecute:
case RemoteExecuteInternal:
pq_puttextmessage('C', commandTag);
break;
case None:
case Debug:
case Tuplestore:
case SPI:
case Tuplestore:
break;
}
}
@@ -152,8 +161,10 @@ NullCommand(CommandDest dest)
{
switch (dest)
{
case RemoteInternal:
case Remote:
case RemoteInternal:
case RemoteExecute:
case RemoteExecuteInternal:
/*
* tell the fe that we saw an empty query string. In protocols
@@ -165,10 +176,10 @@ NullCommand(CommandDest dest)
pq_puttextmessage('I', "");
break;
case Debug:
case Tuplestore:
case None:
default:
case Debug:
case SPI:
case Tuplestore:
break;
}
}
@@ -189,8 +200,10 @@ ReadyForQuery(CommandDest dest)
{
switch (dest)
{
case RemoteInternal:
case Remote:
case RemoteInternal:
case RemoteExecute:
case RemoteExecuteInternal:
if (PG_PROTOCOL_MAJOR(FrontendProtocol) >= 3)
{
StringInfoData buf;
@@ -205,10 +218,10 @@ ReadyForQuery(CommandDest dest)
pq_flush();
break;
case Debug:
case Tuplestore:
case None:
default:
case Debug:
case SPI:
case Tuplestore:
break;
}
}