greenplumn COrderSpecTest 代码
文件路径：/src/backend/gporca/server/src/unittest/gpopt/base/COrderSpecTest.cpp
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2011 EMC Corp.
/
/ @filename:
/ COrderSpecTest.cpp
/
/ @doc:
/ Tests for order specification
/---------------------------------------------------------------------------
#include "unittest/gpopt/base/COrderSpecTest.h"
#include "gpopt/base/CColumnFactory.h"
#include "gpopt/base/COrderSpec.h"
#include "gpopt/base/CQueryContext.h"
#include "gpopt/eval/CConstExprEvaluatorDefault.h"
#include "naucrates/md/CMDProviderMemory.h"
#include "naucrates/md/IMDId.h"
#include "naucrates/md/IMDTypeInt4.h"
#include "unittest/base.h"
#include "unittest/gpopt/CTestUtils.h"
#include "unittest/gpopt/translate/CTranslatorExprToDXLTest.h"
/---------------------------------------------------------------------------
/ @function:
/ COrderSpecTest::EresUnittest
/
/ @doc:
/ Unittest for order spec classes
/
/---------------------------------------------------------------------------
GPOS_RESULT
COrderSpecTest::EresUnittest()
{
CUnittest rgut[] = {
GPOS_UNITTEST_FUNC(COrderSpecTest::EresUnittest_Basics)};
return CUnittest::EresExecute(rgut, GPOS_ARRAY_SIZE(rgut));
}
/---------------------------------------------------------------------------
/ @function:
/ COrderSpecTest::EresUnittest_Basics
/
/ @doc:
/ Basic order spec tests
/
/---------------------------------------------------------------------------
GPOS_RESULT
COrderSpecTest::EresUnittest_Basics()
{
CAutoMemoryPool amp;
CMemoryPool *mp = amp.Pmp();
/ Setup an MD cache with a file-based provider
CMDProviderMemory *pmdp = CTestUtils::m_pmdpf;
pmdp->AddRef();
CMDAccessor mda(mp, CMDCache::Pcache(), CTestUtils::m_sysidDefault, pmdp);
/ install opt context in TLS
CAutoOptCtxt aoc(mp, &mda, nullptr, /* pceeval */
CTestUtils::GetCostModel(mp));
/ get column factory from optimizer context object
CColumnFactory *col_factory = COptCtxt::PoctxtFromTLS()->Pcf();
CWStringConst strName(GPOS_WSZ_LIT("Test Column"));
CName name(&strName);
const IMDTypeInt4 *pmdtypeint4 =
mda.PtMDType<IMDTypeInt4>(CTestUtils::m_sysidDefault);
CColRef *pcr1 =
col_factory->PcrCreate(pmdtypeint4, default_type_modifier, name);
CColRef *pcr2 =
col_factory->PcrCreate(pmdtypeint4, default_type_modifier, name);
CColRef *pcr3 =
col_factory->PcrCreate(pmdtypeint4, default_type_modifier, name);
COrderSpec *pos1 = GPOS_NEW(mp) COrderSpec(mp);
IMDId *pmdidInt4LT = pmdtypeint4->GetMdidForCmpType(IMDType::EcmptL);
pmdidInt4LT->AddRef();
pmdidInt4LT->AddRef();
pos1->Append(pmdidInt4LT, pcr1, COrderSpec::EntFirst);
pos1->Append(pmdidInt4LT, pcr2, COrderSpec::EntLast);
GPOS_ASSERT(pos1->Matches(pos1));
GPOS_ASSERT(pos1->FSatisfies(pos1));
COrderSpec *pos2 = GPOS_NEW(mp) COrderSpec(mp);
pmdidInt4LT->AddRef();
pmdidInt4LT->AddRef();
pmdidInt4LT->AddRef();
pos2->Append(pmdidInt4LT, pcr1, COrderSpec::EntFirst);
pos2->Append(pmdidInt4LT, pcr2, COrderSpec::EntLast);
pos2->Append(pmdidInt4LT, pcr3, COrderSpec::EntAuto);
(void) pos1->HashValue();
(void) pos2->HashValue();
GPOS_ASSERT(pos2->Matches(pos2));
GPOS_ASSERT(pos2->FSatisfies(pos2));
GPOS_ASSERT(!pos1->Matches(pos2));
GPOS_ASSERT(!pos2->Matches(pos1));
GPOS_ASSERT(pos2->FSatisfies(pos1));
GPOS_ASSERT(!pos1->FSatisfies(pos2));
/ iterate over the components of the order spec
for (ULONG ul = 0; ul < pos1->UlSortColumns(); ul++)
{
const CColRef *colref GPOS_ASSERTS_ONLY = pos1->Pcr(ul);
GPOS_ASSERT(nullptr != colref);
const IMDId *mdid GPOS_ASSERTS_ONLY = pos1->GetMdIdSortOp(ul);
GPOS_ASSERT(mdid->IsValid());
(void) pos1->Ent(ul);
}
pos1->Release();
pos2->Release();
return GPOS_OK;
}
/ EOF
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