/* ------------------------------------------------------------------
* ExecShareInputRestrPosScan
* ------------------------------------------------------------------
*/
void ExecShareInputScanRestrPos(ShareInputScanState *node)
{
ShareInputScan *sisc = (ShareInputScan *) node->ss.ps.plan;
Assert(NULL != node->ts_state);
Assert(NULL != node->ts_state->matstore || NULL != node->ts_state->sortstore || NULL != node->ts_state->sortstore_mk);
if(sisc->share_type == SHARE_MATERIAL || sisc->share_type == SHARE_MATERIAL_XSLICE)
{
Assert(node->ts_pos && node->ts_markpos);
ntuplestore_acc_seek((NTupleStoreAccessor *) node->ts_pos, (NTupleStorePos *) node->ts_markpos);
}
else if(sisc->share_type == SHARE_SORT || sisc->share_type == SHARE_SORT_XSLICE)
{
if(gp_enable_mk_sort)
{
tuplesort_restorepos_pos_mk(node->ts_state->sortstore_mk, (TuplesortPos_mk *) node->ts_pos);
}
else
{
tuplesort_restorepos_pos(node->ts_state->sortstore, (TuplesortPos *) node->ts_pos);
}
}
else
Assert(!"ExecShareInputScanRestrPos: invalid share type");
Gpmon_M_Incr(GpmonPktFromShareInputState(node), GPMON_SHAREINPUT_RESTOREPOS);
CheckSendPlanStateGpmonPkt(&node->ss.ps);
}
/* ----------------------------------------------------------------
* ExecMaterialRestrPos
*
* Calls tuplestore to restore the last saved file position.
* ----------------------------------------------------------------
*/
void
ExecMaterialRestrPos(MaterialState *node)
{
Assert(node->randomAccess);
#ifdef DEBUG
{
/* share input should never call this */
Material *ma = (Material *) node->ss.ps.plan;
Assert(ma->share_type == SHARE_NOTSHARED);
}
#endif
/*
* if we haven't materialized yet, just return.
*/
if (NULL == node->ts_state->matstore)
{
return;
}
Assert(node->ts_pos && node->ts_markpos);
ntuplestore_acc_seek((NTupleStoreAccessor *) node->ts_pos, (NTupleStorePos *) node->ts_markpos);
}
