Fix clang error unused private field from GPDB commit bc7ab7bd

src/backend/gporca/libnaucrates/include/naucrates/md/CDXLStatsDerivedRelation.h

@@ -44,12 +44,6 @@ private:
 	// flag to indicate if input relation is empty
 	BOOL m_empty;
 
-	// number of blocks in the relation (not always up to-to-date)
-	ULONG m_relpages;
-
-	// number of all-visible blocks in the relation (not always up-to-date)
-	ULONG m_relallvisible;
-
 	// array of derived column statistics
 	CDXLStatsDerivedColumnArray *m_dxl_stats_derived_col_array;
 
@@ -58,7 +52,7 @@ public:
 
 	// ctor
 	CDXLStatsDerivedRelation(
-		CDouble rows, BOOL is_empty, ULONG relpages, ULONG relallvisible,
+		CDouble rows, BOOL is_empty,
 		CDXLStatsDerivedColumnArray *dxl_stats_derived_col_array);
 
 	// dtor

src/backend/gporca/libnaucrates/src/md/CDXLStatsDerivedRelation.cpp

@@ -26,12 +26,10 @@ using namespace gpmd;
 //
 //---------------------------------------------------------------------------
 CDXLStatsDerivedRelation::CDXLStatsDerivedRelation(
-	CDouble rows, BOOL is_empty, ULONG relpages, ULONG relallvisible,
+	CDouble rows, BOOL is_empty,
 	CDXLStatsDerivedColumnArray *dxl_stats_derived_col_array)
 	: m_rows(rows),
 	  m_empty(is_empty),
-	  m_relpages(relpages),
-	  m_relallvisible(relallvisible),
 	  m_dxl_stats_derived_col_array(dxl_stats_derived_col_array)
 {
 	GPOS_ASSERT(NULL != dxl_stats_derived_col_array);

src/backend/gporca/libnaucrates/src/parser/CParseHandlerStatsDerivedRelation.cpp

@@ -173,8 +173,7 @@ CParseHandlerStatsDerivedRelation::EndElement(
 	}
 
 	m_dxl_stats_derived_relation = GPOS_NEW(m_mp)
-		CDXLStatsDerivedRelation(m_rows, m_empty, m_relpages, m_relallvisible,
-								 dxl_stats_derived_col_array);
+		CDXLStatsDerivedRelation(m_rows, m_empty, dxl_stats_derived_col_array);
 
 	// deactivate handler
 	m_parse_handler_mgr->DeactivateHandler();

src/backend/gporca/libnaucrates/src/statistics/CStatistics.cpp

@@ -780,9 +780,8 @@ CStatistics::GetDxlStatsDrvdRelation(CMemoryPool *mp,
 		dxl_stats_derived_col_array->Append(dxl_derived_col_stats);
 	}
 
-	return GPOS_NEW(mp)
-		CDXLStatsDerivedRelation(m_rows, IsEmpty(), m_relpages, m_relallvisible,
-								 dxl_stats_derived_col_array);
+	return GPOS_NEW(mp) CDXLStatsDerivedRelation(m_rows, IsEmpty(),
+												 dxl_stats_derived_col_array);
 }
 
 // return the upper bound of ndvs for a column reference