double CExpression::calculate(const char* st, double x, double y) { return CExpression(st, true).calculate(x,y); }
double CExpression::calculate(const std::string& st, double x, double y) { return CExpression(st, true).calculate(x,y); }
//---------------------------------------------------------------------------
// @function:
// CXformTest::EresUnittest_ApplyXforms_CTE
//
// @doc:
// Test application of CTE-related xforms
//
//---------------------------------------------------------------------------
GPOS_RESULT
CXformTest::EresUnittest_ApplyXforms_CTE()
{
CAutoMemoryPool amp;
IMemoryPool *pmp = amp.Pmp();
// setup a file-based provider
CMDProviderMemory *pmdp = CTestUtils::m_pmdpf;
pmdp->AddRef();
CMDAccessor mda(pmp, CMDCache::Pcache(), CTestUtils::m_sysidDefault, pmdp);
// install opt context in TLS
CAutoOptCtxt aoc
(
pmp,
&mda,
NULL, /* pceeval */
CTestUtils::Pcm(pmp)
);
DrgPexpr *pdrgpexpr = GPOS_NEW(pmp) DrgPexpr(pmp);
// create producer
ULONG ulCTEId = 0;
CExpression *pexprProducer = CTestUtils::PexprLogicalCTEProducerOverSelect(pmp, ulCTEId);
COptCtxt::PoctxtFromTLS()->Pcteinfo()->AddCTEProducer(pexprProducer);
pdrgpexpr->Append(pexprProducer);
DrgPcr *pdrgpcrProducer = CLogicalCTEProducer::PopConvert(pexprProducer->Pop())->Pdrgpcr();
DrgPcr *pdrgpcrConsumer = CUtils::PdrgpcrCopy(pmp, pdrgpcrProducer);
CExpression *pexprConsumer =
GPOS_NEW(pmp) CExpression
(
pmp,
GPOS_NEW(pmp) CLogicalCTEConsumer(pmp, ulCTEId, pdrgpcrConsumer)
);
pdrgpexpr->Append(pexprConsumer);
COptCtxt::PoctxtFromTLS()->Pcteinfo()->IncrementConsumers(ulCTEId);
pexprConsumer->AddRef();
CExpression *pexprSelect = CTestUtils::PexprLogicalSelect(pmp, pexprConsumer);
pdrgpexpr->Append(pexprSelect);
pexprSelect->AddRef();
CExpression *pexprAnchor =
GPOS_NEW(pmp) CExpression
(
pmp,
GPOS_NEW(pmp) CLogicalCTEAnchor(pmp, ulCTEId),
pexprSelect
);
pdrgpexpr->Append(pexprAnchor);
const ULONG ulLen = pdrgpexpr->UlLength();
for (ULONG ul = 0; ul < ulLen; ul++)
{
CWStringDynamic str(pmp);
COstreamString oss(&str);
ApplyExprXforms(pmp, oss, (*pdrgpexpr)[ul]);
GPOS_TRACE(str.Wsz());
}
pdrgpexpr->Release();
return GPOS_OK;
}
