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Remove TupleDesc remapping logic from tqueue.c.

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With the introduction of a shared memory record typmod registry, it is no
longer necessary to remap record typmods when sending tuples between backends
so most of tqueue.c can be removed.

Author: Thomas Munro
Reviewed-By: Andres Freund
Discussion: https://postgr.es/m/CAEepm=0ZtQ-SpsgCyzzYpsXS6e=kZWqk3g5Ygn3MDV7A8dabUA@mail.gmail.com
This commit is contained in:
Andres Freund
2017-09-14 19:59:02 -07:00
parent cc5f81366c
commit 6b65a7fe62
6 changed files with 27 additions and 1110 deletions
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7
src/backend/executor/execParallel.c
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@ -608,14 +608,12 @@ ExecInitParallelPlan(PlanState *planstate, EState *estate, int nworkers,
/*
* Set up tuple queue readers to read the results of a parallel subplan.
* All the workers are expected to return tuples matching tupDesc.
*
* This is separate from ExecInitParallelPlan() because we can launch the
* worker processes and let them start doing something before we do this.
*/
void
ExecParallelCreateReaders(ParallelExecutorInfo *pei,
TupleDesc tupDesc)
ExecParallelCreateReaders(ParallelExecutorInfo *pei)
{
int nworkers = pei->pcxt->nworkers_launched;
int i;
@ -631,8 +629,7 @@ ExecParallelCreateReaders(ParallelExecutorInfo *pei,
{
shm_mq_set_handle(pei->tqueue[i],
pei->pcxt->worker[i].bgwhandle);
pei->reader[i] = CreateTupleQueueReader(pei->tqueue[i],
tupDesc);
pei->reader[i] = CreateTupleQueueReader(pei->tqueue[i]);
}
}
}