greenplumn CIndexDescriptorTest 代码
文件路径：/src/backend/gporca/server/src/unittest/gpopt/metadata/CIndexDescriptorTest.cpp
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2012 EMC Corp.
/
/ @filename:
/ CIndexDescriptorTest.cpp
/
/ @doc:
/ Test for CIndexDescriptor
/---------------------------------------------------------------------------
#include "unittest/gpopt/metadata/CIndexDescriptorTest.h"
#include "gpos/io/COstreamString.h"
#include "gpos/string/CWStringDynamic.h"
#include "gpopt/base/CQueryContext.h"
#include "gpopt/base/CUtils.h"
#include "gpopt/eval/CConstExprEvaluatorDefault.h"
#include "gpopt/metadata/CTableDescriptor.h"
#include "naucrates/md/CMDIdGPDB.h"
#include "naucrates/md/CMDProviderMemory.h"
#include "naucrates/md/IMDIndex.h"
#include "unittest/base.h"
#include "unittest/gpopt/CTestUtils.h"
/---------------------------------------------------------------------------
/ @function:
/ CIndexDescriptorTest::EresUnittest
/
/ @doc:
/ Unittest for metadata names
/
/---------------------------------------------------------------------------
GPOS_RESULT
CIndexDescriptorTest::EresUnittest()
{
CUnittest rgut[] = {
GPOS_UNITTEST_FUNC(CIndexDescriptorTest::EresUnittest_Basic)};
return CUnittest::EresExecute(rgut, GPOS_ARRAY_SIZE(rgut));
}
/---------------------------------------------------------------------------
/ @function:
/ CIndexDescriptorTest::EresUnittest_Basic
/
/ @doc:
/ Basic naming, key columns and index columns printing test
/
/---------------------------------------------------------------------------
GPOS_RESULT
CIndexDescriptorTest::EresUnittest_Basic()
{
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));
CWStringConst strName(GPOS_WSZ_LIT("MyTable"));
CMDIdGPDB *mdid = GPOS_NEW(mp) CMDIdGPDB(GPOPT_MDCACHE_TEST_OID, 1, 1);
CTableDescriptor *ptabdesc =
CTestUtils::PtabdescCreate(mp, 10, mdid, CName(&strName));
/ get the index associated with the table
const IMDRelation *pmdrel = mda.RetrieveRel(ptabdesc->MDId());
GPOS_ASSERT(0 < pmdrel->IndexCount());
/ create an index descriptor
IMDId *pmdidIndex = pmdrel->IndexMDidAt(0); / get the first index
const IMDIndex *pmdindex = mda.RetrieveIndex(pmdidIndex);
CIndexDescriptor *pindexdesc =
CIndexDescriptor::Pindexdesc(mp, ptabdesc, pmdindex);
#ifdef GPOS_DEBUG
CWStringDynamic str(mp);
COstreamString oss(&str);
pindexdesc->OsPrint(oss);
GPOS_TRACE(str.GetBuffer());
#endif / GPOS_DEBUG
/ clean up
ptabdesc->Release();
pindexdesc->Release();
return GPOS_OK;
}
/ EOF
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