//---------------------------------------------------------------------------
// @function:
// CLogicalGet::OsPrint
//
// @doc:
// debug print
//
//---------------------------------------------------------------------------
IOstream &
CLogicalGet::OsPrint
(
IOstream &os
)
const
{
if (m_fPattern)
{
return COperator::OsPrint(os);
}
else
{
os << SzId() << " ";
// alias of table as referenced in the query
m_pnameAlias->OsPrint(os);
// actual name of table in catalog and columns
os << " (";
m_ptabdesc->Name().OsPrint(os);
os << "), Columns: [";
CUtils::OsPrintDrgPcr(os, m_pdrgpcrOutput);
os << "] Key sets: {";
const ULONG ulColumns = m_pdrgpcrOutput->UlLength();
const DrgPbs *pdrgpbsKeys = m_ptabdesc->PdrgpbsKeys();
for (ULONG ul = 0; ul < pdrgpbsKeys->UlLength(); ul++)
{
CBitSet *pbs = (*pdrgpbsKeys)[ul];
if (0 < ul)
{
os << ", ";
}
os << "[";
ULONG ulPrintedKeys = 0;
for (ULONG ulKey = 0; ulKey < ulColumns; ulKey++)
{
if (pbs->FBit(ulKey))
{
if (0 < ulPrintedKeys)
{
os << ",";
}
os << ulKey;
ulPrintedKeys++;
}
}
os << "]";
}
os << "}";
}
return os;
}
//---------------------------------------------------------------------------
// @function:
// CBitSetTest::EresUnittest_Basics
//
// @doc:
// Testing ctors/dtor
//
//---------------------------------------------------------------------------
GPOS_RESULT
CBitSetTest::EresUnittest_Basics()
{
// create memory pool
CAutoMemoryPool amp;
IMemoryPool *pmp = amp.Pmp();
ULONG cSizeBits = 32;
CBitSet *pbs = GPOS_NEW(pmp) CBitSet(pmp, cSizeBits);
ULONG cInserts = 10;
for (ULONG i = 0; i < cInserts; i += 2)
{
// forces addition of new link
pbs->FExchangeSet(i * cSizeBits);
}
GPOS_ASSERT(cInserts / 2 == pbs->CElements());
for (ULONG i = 1; i < cInserts; i += 2)
{
// new link between existing links
pbs->FExchangeSet(i * cSizeBits);
}
GPOS_ASSERT(cInserts == pbs->CElements());
CBitSet *pbsCopy = GPOS_NEW(pmp) CBitSet(pmp, *pbs);
GPOS_ASSERT(pbsCopy->FEqual(pbs));
// delete old bitset to make sure we're not accidentally
// using any of its memory
pbs->Release();
for (ULONG i = 0; i < cInserts; i++)
{
GPOS_ASSERT(pbsCopy->FBit(i * cSizeBits));
}
CWStringDynamic str(pmp);
COstreamString os(&str);
os << *pbsCopy << std::endl;
GPOS_TRACE(str.Wsz());
pbsCopy->Release();
return GPOS_OK;
}
//---------------------------------------------------------------------------
// @function:
// CTranslatorDXLToQuery::MarkUnusedColumns
//
// @doc:
// Mark unused target list entries in the setop child
//
//---------------------------------------------------------------------------
void
CTranslatorDXLToQuery::MarkUnusedColumns
(
Query *pquery,
RangeTblRef *prtref,
CStateDXLToQuery *pstatedxltoquery,
const DrgPul *pdrgpulColids
)
{
const ULONG ulRTIndex = prtref->rtindex;
RangeTblEntry *prte = (RangeTblEntry*) gpdb::PvListNth(pquery->rtable, ulRTIndex -1);
GPOS_ASSERT(RTE_SUBQUERY == prte->rtekind);
Query *pqueryDerTbl = prte->subquery;
// maintain the list of used columns in a bit set
CBitSet *pds = New(m_pmp) CBitSet(m_pmp);
const ULONG ulLen = pdrgpulColids->UlLength();
for (ULONG ul = 0; ul < ulLen; ul++)
{
ULONG ulValue = *((*pdrgpulColids)[ul]);
(void) pds->FExchangeSet(ulValue);
}
// Mark all columns that are not in the list of required input columns as being unused
const ULONG ulSize = pstatedxltoquery->UlLength();
for (ULONG ul = 0; ul < ulSize; ul++)
{
ULONG ulColId = pstatedxltoquery->UlColId(ul);
BOOL fSet = pds->FBit(ulColId);
if (!fSet)
{
// mark the column as unused in the query
TargetEntry *pte2 = (TargetEntry*) gpdb::PvListNth(pqueryDerTbl->targetList, ul);
pte2->resjunk = true;
// mark the column as unused in the state
TargetEntry *pte = pstatedxltoquery->PteColumn(ul);
pte->resjunk = true;
}
}
pds->Release();
}
//---------------------------------------------------------------------------
// @function:
// CConfigParamMapping::PbsPack
//
// @doc:
// Pack the GPDB config params into a bitset
//
//---------------------------------------------------------------------------
CBitSet *
CConfigParamMapping::PbsPack
(
IMemoryPool *pmp,
ULONG ulXforms // number of available xforms
)
{
CBitSet *pbs = New(pmp) CBitSet(pmp, EopttraceSentinel);
for (ULONG ul = 0; ul < GPOS_ARRAY_SIZE(m_elem); ul++)
{
SConfigMappingElem elem = m_elem[ul];
GPOS_ASSERT(!pbs->FBit((ULONG) elem.m_etf) &&
"trace flag already set");
BOOL fVal = *elem.m_pfParam;
if (elem.m_fNegate)
{
// negate the value of config param
fVal = !fVal;
}
if (fVal)
{
#ifdef GPOS_DEBUG
BOOL fSet =
#endif // GPOS_DEBUG
pbs->FExchangeSet((ULONG) elem.m_etf);
GPOS_ASSERT(!fSet);
}
}
// pack disable flags of xforms
for (ULONG ul = 0; ul < ulXforms; ul++)
{
GPOS_ASSERT(!pbs->FBit(EopttraceDisableXformBase + ul) &&
"xform trace flag already set");
if (optimizer_xforms[ul])
{
#ifdef GPOS_DEBUG
BOOL fSet =
#endif // GPOS_DEBUG
pbs->FExchangeSet(EopttraceDisableXformBase + ul);
GPOS_ASSERT(!fSet);
}
}
// disable index-join if the corresponding GUC is turned off
if (!optimizer_enable_indexjoin)
{
CBitSet *pbsIndexJoin = CXform::PbsIndexJoinXforms(pmp);
pbs->Union(pbsIndexJoin);
pbsIndexJoin->Release();
}
// disable bitmap scan if the corresponding GUC is turned off
if (!optimizer_enable_bitmapscan)
{
CBitSet *pbsBitmapScan = CXform::PbsBitmapIndexXforms(pmp);
pbs->Union(pbsBitmapScan);
pbsBitmapScan->Release();
}
// disable outerjoin to unionall transformation if GUC is turned off
if (!optimizer_enable_outerjoin_to_unionall_rewrite)
{
pbs->FExchangeSet(GPOPT_DISABLE_XFORM_TF(CXform::ExfLeftOuter2InnerUnionAllLeftAntiSemiJoin));
}
// disable Assert MaxOneRow plans if GUC is turned off
if (!optimizer_enable_assert_maxonerow)
{
pbs->FExchangeSet(GPOPT_DISABLE_XFORM_TF(CXform::ExfMaxOneRow2Assert));
}
if (!optimizer_enable_partial_index)
{
CBitSet *pbsHeterogeneousIndex = CXform::PbsHeterogeneousIndexXforms(pmp);
pbs->Union(pbsHeterogeneousIndex);
pbsHeterogeneousIndex->Release();
}
return pbs;
}