core/sql/comexe/ComTdbSplitTop.cpp

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/* -*-C++-*-
****************************************************************************
*
* File:         ComTdbSplitTop.cpp
* Description:  Split top tdb (for parallel execution)
*
* Created:      5/6/98
* Language:     C++
*
*
*
*
****************************************************************************
*/

#include "ComTdbSplitTop.h"
#include "ComTdbCommon.h"
#include "PartInputDataDesc.h"

// -----------------------------------------------------------------------
// Methods for class ComTdbSplitTop
// -----------------------------------------------------------------------

ComTdbSplitTop::ComTdbSplitTop(ComTdb       *child,
			       ex_expr      *childInputPartFunction,
			       Lng32         inputPartAtpIndex,
			       ex_expr      *mergeKeyExpr,
			       Lng32         mergeKeyAtpIndex,
			       Lng32         mergeKeyLength,
			       ExPartInputDataDesc *partInputDataDesc,
			       Lng32         partInputDataAtpIndex,
			       Lng32         paPartNoAtpIndex,
			       ex_cri_desc  *criDescDown,
			       ex_cri_desc  *criDescUp,
			       ex_cri_desc  *downCriDesc,
			       ex_cri_desc  *workCriDesc,
			       NABoolean    bufferedInserts,
			       queue_index  fromParent,
			       queue_index  toParent,
			       Cardinality  estimatedRowCount,
                               Lng32         bottomNumParts,
                               Int32        streamTimeout,
			       Lng32         sidNumBuffers,
			       ULng32 sidBufferSize
			       ) :
  ComTdb(ex_SPLIT_TOP,
	 eye_SPLIT_TOP,
	 estimatedRowCount,
	 criDescDown,
	 criDescUp,
	 fromParent,
	 toParent,
	 sidNumBuffers,
	 sidBufferSize)

{
  child_                  = child;
  childInputPartFunction_ = childInputPartFunction;
  inputPartAtpIndex_      = inputPartAtpIndex;
  mergeKeyExpr_           = mergeKeyExpr;
  mergeKeyAtpIndex_       = mergeKeyAtpIndex;
  mergeKeyLength_         = mergeKeyLength;
  partInputDataDesc_      = partInputDataDesc;
  partInputDataAtpIndex_  = partInputDataAtpIndex;
  paPartNoAtpIndex_       = paPartNoAtpIndex;
  downCriDesc_            = downCriDesc;
  workCriDesc_            = workCriDesc;
  bottomNumParts_         = bottomNumParts;

  splitTopFlags_          = 0x0;

  if (bufferedInserts)
    splitTopFlags_ |= BUFFERED_INSERTS;

  streamTimeout_ = streamTimeout;
}
  
Int32 ComTdbSplitTop::orderedQueueProtocol() const
{
  return TRUE;
} // these 3 lines won't be covered, obsolete but not in the list yet

void ComTdbSplitTop::display() const
{
} // these 3 lines won't be covered, used by Windows GUI only

const ComTdb* ComTdbSplitTop::getChild(Int32 pos) const
{
  return child_;
}

Int32 ComTdbSplitTop::numChildren() const
{
  return 1;
}

Int32 ComTdbSplitTop::numExpressions() const
{
  return 2;
}

ex_expr* ComTdbSplitTop::getExpressionNode(Int32 pos)
{
  if (pos == 0)
    return childInputPartFunction_;
  else if (pos == 1)
    return mergeKeyExpr_;
  else
    return NULL;
}

const char * ComTdbSplitTop::getExpressionName(Int32 pos) const
{
  if (pos == 0)
    return "childInputPartFunction_";
  else if (pos == 1)
    return "mergeKeyExpr_";
  else
    return NULL;
}

Long ComTdbSplitTop::pack(void * space)
{
  child_.pack(space);
  mergeKeyExpr_.pack(space);
  childInputPartFunction_.pack(space);
  partInputDataDesc_.pack(space);
  downCriDesc_.pack(space);
  workCriDesc_.pack(space);
  extractProducerInfo_.pack(space);
  return ComTdb::pack(space);
}

Lng32 ComTdbSplitTop::unpack(void * base, void * reallocator)
{
  if(child_.unpack(base, reallocator)) return -1;
  if(childInputPartFunction_.unpack(base, reallocator)) return -1;
  if(mergeKeyExpr_.unpack(base, reallocator)) return -1;
  if(partInputDataDesc_.unpack(base, reallocator)) return -1;
  if(downCriDesc_.unpack(base, reallocator)) return -1;
  if(workCriDesc_.unpack(base, reallocator)) return -1;
  if(extractProducerInfo_.unpack(base, reallocator)) return -1;
  return ComTdb::unpack(base, reallocator);
}

void ComTdbSplitTop::displayContents(Space *space, ULng32 flag)
{
  ComTdb::displayContents(space, flag & 0xFFFFFFFE);
  
  if (flag & 0x00000008)
  {
    char buf[256];
    
    str_sprintf(buf, "\nFor ComTdbSplitTop :\nFlags = %x ",flags_);
    space->allocateAndCopyToAlignedSpace(buf, str_len(buf), sizeof(short));
    
    str_sprintf(buf, "splitTopFlags_ = %x", (Lng32) splitTopFlags_);
    space->allocateAndCopyToAlignedSpace(buf, str_len(buf), sizeof(short));

    str_sprintf(buf, "bottomNumParts_ = %d", (Int32) bottomNumParts_);
    space->allocateAndCopyToAlignedSpace(buf, str_len(buf), sizeof(short));

    if (splitTopFlags_ & EXTRACT_PRODUCER)
    {
      str_sprintf(buf, "This is a parallel extract producer");
      space->allocateAndCopyToAlignedSpace(buf, str_len(buf), sizeof(short));

      const char *key = getExtractSecurityKey();
      str_sprintf(buf, "Security key = %s", (key ? key : "(NULL)"));
      space->allocateAndCopyToAlignedSpace(buf, str_len(buf), sizeof(short));
    }

    str_sprintf(buf, "Exchange uses SeaMonster: %s",
                getExchangeUsesSM() ? "yes" : "no");
    space->allocateAndCopyToAlignedSpace(buf, str_len(buf), sizeof(short));
  }
  
  if (flag & 0x00000001)
  {
    displayExpression(space,flag);
    displayChildren(space,flag);
  }
}