/* ----------------
* CreateDestReceiver - return appropriate receiver function set for dest
* ----------------
*/
DestReceiver *
CreateDestReceiver(CommandDest dest)
{
switch (dest)
{
case DestRemote:
case DestRemoteExecute:
return printtup_create_DR(dest);
case DestNone:
return &donothingDR;
case DestDebug:
return &debugtupDR;
case DestSPI:
return &spi_printtupDR;
case DestTuplestore:
return CreateTuplestoreDestReceiver();
case DestIntoRel:
return CreateIntoRelDestReceiver();
case DestCopyOut:
return CreateCopyDestReceiver();
case DestSQLFunction:
return CreateSQLFunctionDestReceiver();
}
/* should never get here */
return &donothingDR;
}
/* ----------------
* CreateDestReceiver - return appropriate receiver function set for dest
* ----------------
*/
DestReceiver *
CreateDestReceiver(CommandDest dest)
{
/*
* It's ok to cast the constness away as any modification of the none receiver
* would be a bug (which gets easier to catch this way).
*/
switch (dest)
{
case DestRemote:
case DestRemoteExecute:
return printtup_create_DR(dest);
case DestRemoteSimple:
return unconstify(DestReceiver *, &printsimpleDR);
case DestNone:
return unconstify(DestReceiver *, &donothingDR);
case DestDebug:
return unconstify(DestReceiver *, &debugtupDR);
case DestSPI:
return unconstify(DestReceiver *, &spi_printtupDR);
case DestTuplestore:
return CreateTuplestoreDestReceiver();
case DestIntoRel:
return CreateIntoRelDestReceiver(NULL);
case DestCopyOut:
return CreateCopyDestReceiver();
case DestSQLFunction:
return CreateSQLFunctionDestReceiver();
case DestTransientRel:
return CreateTransientRelDestReceiver(InvalidOid);
case DestTupleQueue:
return CreateTupleQueueDestReceiver(NULL);
}
/* should never get here */
pg_unreachable();
}
/* ----------------
* CreateDestReceiver - return appropriate receiver function set for dest
*
* Note: a Portal must be specified for destinations DestRemote,
* DestRemoteExecute, and DestTuplestore. It can be NULL for the others.
* ----------------
*/
DestReceiver *
CreateDestReceiver(CommandDest dest, Portal portal)
{
switch (dest)
{
case DestRemote:
case DestRemoteExecute:
if (portal == NULL)
elog(ERROR, "no portal specified for DestRemote receiver");
return printtup_create_DR(dest, portal);
case DestNone:
return &donothingDR;
case DestDebug:
return &debugtupDR;
case DestSPI:
return &spi_printtupDR;
case DestTuplestore:
if (portal == NULL)
elog(ERROR, "no portal specified for DestTuplestore receiver");
if (portal->holdStore == NULL ||
portal->holdContext == NULL)
elog(ERROR, "portal has no holdStore");
return CreateTuplestoreDestReceiver(portal->holdStore,
portal->holdContext);
case DestIntoRel:
return CreateIntoRelDestReceiver();
case DestCopyOut:
return CreateCopyDestReceiver();
}
/* should never get here */
return &donothingDR;
}