CorrName CmpSqlSession::getVolatileCorrName(CorrName &corrName)
{
NAString volTabName = corrName.getQualifiedNameObj().getObjectName();
CorrName newCorrName(volTabName, heap_,
volatileSchemaName(), volatileCatalogName(),
corrName.getCorrNameAsString());
newCorrName.setSpecialType(corrName.getSpecialType());
return newCorrName;
}
// Real comparison operator
//
// Are you adding an extra field to be compared here (like specialType was)?
// Then modify CorrName::isEmpty() and RETDesc.C and TableNameMap.C accordingly
// (emulate the setSpecialType() logic).
//
NABoolean CorrName::operator==(const CorrName& other) const
{
// if two corrnames have different Partition clauses then they are different.
// This is needed because we are caching natables for which PARTITION or LOCATION
// clause is specified.
if (getPartnClause() != other.getPartnClause())
return FALSE;
return isEqualWithPartnClauseSkipped(other);
}
NABoolean CmpSqlSession::validateVolatileCorrName(CorrName &corrName)
{
// make sure that if schema name was specified as part of tablename,
// it is the current user name.
NABoolean isValid = FALSE;
if (NOT corrName.isVolatile())
{
//BYPASS_CHECK_FOR_VOLATILE_SCHEMA_NAME CQD was introduced as a workaround for problem seen in ALM case# 4764.
if (((corrName.isSpecialTable()) && (CmpCommon::getDefault(BYPASS_CHECK_FOR_VOLATILE_SCHEMA_NAME) == DF_ON))
||
validateVolatileQualifiedName(corrName.getQualifiedNameObj()))
{
isValid = TRUE;
}
}
else
{
isValid = TRUE;
}
return isValid;
}
// This method was the == operator before the partnClause was added
// Since we need to skip PartnClause when comparing corrnames that are
// contained in a ColRefName, we are placing the comparision of all
// other data members in this method. This method will be called
// by the new == operator.
NABoolean CorrName::isEqualWithPartnClauseSkipped(const CorrName& other) const
{
if (isFabricated() ^ other.isFabricated())
return FALSE;
NABoolean result;
if (!corrName_.isNull()) {
if (!other.corrName_.isNull())
result = corrName_ == other.corrName_;
else {
QualifiedName thisQual(corrName_);
result = thisQual == other.getQualifiedNameObj();
}
} else if (!other.corrName_.isNull()) {
QualifiedName otherQual(other.corrName_);
result = getQualifiedNameObj() == otherQual;
} else {
result = getQualifiedNameObj() == other.getQualifiedNameObj();
}
// // The names must match, and
// // the special types must match OR one of them must be "normal" --
// // thus in "delete from TABLE (RESOURCE_FORK %s) where rfsection = ?;",
// // unbound column "rfsection"'s corrname is initially empty/default/normal
// // but it will hereby compare equal to the RETDesc xcnm "rfsection" which
// // is marked "special/rfork type".
// return result && (getSpecialType() == other.getSpecialType() ||
// getSpecialType() == NORMAL_TABLE ||
// NORMAL_TABLE == other.getSpecialType()
// );
//
// The preceding is foolishly, overly rigorous -- it would only ever catch
// a situation where we had two distinct special types in the same query,
// or if we were reusing (cached) NATables across queries --
// neither of which we are currently doing.
// So, the names must match, and that's all!
return result;
}
// -----------------------------------------------------------------------
// Constructor (but note that much more useful stuff goes on in
// static createTableDesc in BindRelExpr.C)
// -----------------------------------------------------------------------
TableDesc::TableDesc(BindWA *bindWA,
const NATable *table,
CorrName& corrName)
: table_(table),
indexes_(bindWA->wHeap()),
uniqueIndexes_(bindWA->wHeap()),
vertParts_(bindWA->wHeap()),
hintIndexes_(bindWA->wHeap()),
colStats_(bindWA->wHeap()),
corrName_("",bindWA->wHeap()),
analysis_(NULL)
{
corrName.applyDefaults(bindWA, bindWA->getDefaultSchema());
corrName_ = corrName ;
selectivityHint_ = NULL;
cardinalityHint_ = NULL;
histogramsCompressed_ = FALSE;
minRC_ = csOne;
maxRC_ = COSTSCALAR_MAX;
// Fix up the name location list to help with the computing
// of view text, check constraint search condition text, etc.
//
if (corrName.getSpecialType() == ExtendedQualName::TRIGTEMP_TABLE) // -- Triggers
return;
ParNameLocList *pNameLocList = bindWA->getNameLocListPtr();
if (pNameLocList)
{
ParNameLoc * pNameLoc
= pNameLocList->getNameLocPtr(corrName_.getNamePosition());
if (pNameLoc AND pNameLoc->getExpandedName(FALSE).isNull())
{
pNameLoc->setExpandedName(corrName_.getQualifiedNameObj().
getQualifiedNameAsAnsiString());
}
}
}
ULng32 hashKey(const CorrName& name) { return name.hash(); }
