INT32 upAAttrByFieldAlias( qgmDbAttr & attr,
const qgmOPFieldPtrVec & fieldAlias )
{
PD_TRACE_ENTRY( SDB__QGMUPAATTRBYFIELDALIAS ) ;
INT32 rc = SDB_OK ;
qgmOPFieldPtrVec::const_iterator cit = fieldAlias.begin() ;
while ( cit != fieldAlias.end() )
{
if ( attr == (*cit)->value )
{
if ( (*cit)->alias.empty() )
{
attr.relegation().clear() ;
}
else
{
attr.attr() = (*cit)->alias ;
}
break ;
}
++cit ;
}
PD_TRACE_EXITRC( SDB__QGMUPAATTRBYFIELDALIAS, rc ) ;
return rc ;
}
BOOLEAN isFrom( const _qgmOpField &right, BOOLEAN useAlias = TRUE ) const
{
if ( value == right.value || right.type == SQL_GRAMMAR::WILDCARD
|| ( useAlias && value.attr() == right.alias ) )
{
return TRUE ;
}
return FALSE ;
}
INT32 downAAttrByFieldAlias( qgmDbAttr & attr,
const qgmOPFieldPtrVec & fieldAlias)
{
PD_TRACE_ENTRY( SDB__QGMDOWNAATTRBYFIELDALIAS ) ;
INT32 rc = SDB_OK ;
qgmOPFieldPtrVec::const_iterator cit = fieldAlias.begin() ;
while ( cit != fieldAlias.end() )
{
if ( ( (*cit)->alias.empty() && attr.attr() == (*cit)->value.attr() )
|| ( !(*cit)->alias.empty() && attr.attr() == (*cit)->alias ) )
{
attr = (*cit)->value ;
break ;
}
++cit ;
}
PD_TRACE_EXITRC( SDB__QGMDOWNAATTRBYFIELDALIAS, rc ) ;
return rc ;
}
BOOLEAN isFrom( const qgmDbAttr &left, const qgmOpField &right,
BOOLEAN useAlias )
{
if ( ( useAlias && left.attr() == right.alias )
|| left == right.value || right.type == SQL_GRAMMAR::WILDCARD )
{
return TRUE ;
}
return FALSE ;
}
string toString() const
{
stringstream ss ;
ss << "value:" << value.toString() ;
ss << ",type:" << type ;
if ( !alias.empty() )
{
ss << ",alias:" << alias.toString() ;
}
return ss.str() ;
}
// PD_TRACE_DECLARE_FUNCTION( SDB__QGMPTRTABLE_GETOWNATTR, "_qgmPtrTable::getOwnAttr" )
INT32 _qgmPtrTable::getOwnAttr( const CHAR *begin,
UINT32 size,
qgmDbAttr &attr )
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB__QGMPTRTABLE_GETOWNATTR ) ;
UINT32 pos = 0 ;
BOOLEAN hasDot = qgmUtilFirstDot( begin, size, pos ) ;
if ( hasDot && ( 0 == pos || size - 1 == pos ) )
{
PD_LOG( PDERROR,
"the first char and the last char can not be '.'" ) ;
rc = SDB_INVALIDARG ;
goto error ;
}
if ( hasDot )
{
rc = getOwnField( begin, pos, attr.relegation() ) ;
if ( SDB_OK != rc )
{
goto error ;
}
++pos ;
}
rc = getOwnField( begin + pos, size - pos, attr.attr() ) ;
if ( SDB_OK != rc )
{
goto error ;
}
done:
PD_TRACE_EXITRC( SDB__QGMPTRTABLE_GETOWNATTR, rc ) ;
return rc ;
error:
goto done ;
}
BOOLEAN _qgmOptiAggregation::isInAggrFieldAlias( const qgmDbAttr & field ) const
{
qgmAggrSelectorVec::const_iterator cit = _selector.begin() ;
while ( cit != _selector.end() )
{
const qgmAggrSelector &aggrSel = *cit ;
if ( SQL_GRAMMAR::FUNC == aggrSel.value.type &&
aggrSel.value.alias == field.attr() )
{
return TRUE ;
}
++cit ;
}
return FALSE ;
}
INT32 _qgmPtrTable::getAttr( const CHAR *begin, UINT32 size,
qgmDbAttr &attr )
{
PD_TRACE_ENTRY( SDB__QGMPTRTABLE_GETATTR ) ;
INT32 rc = SDB_OK ;
UINT32 num = 0 ;
BOOLEAN hasDot = qgmUtilFirstDot( begin, size, num ) ;
if ( 1 == num || size == num )
{
PD_LOG( PDERROR,
"the first char and the last char can not be '.'" ) ;
rc = SDB_INVALIDARG ;
goto error ;
}
if ( hasDot )
{
rc = getField( begin, num - 1, attr.relegation() ) ;
if ( SDB_OK != rc )
{
goto error ;
}
}
rc = getField( begin + num, size - num, attr.attr() ) ;
if ( SDB_OK != rc )
{
goto error ;
}
done:
PD_TRACE_EXITRC( SDB__QGMPTRTABLE_GETATTR, rc ) ;
return rc ;
error:
goto done ;
}
BOOLEAN empty() const
{
return value.empty() && alias.empty() ;
}