diff --git a/secondary/pgm.h b/secondary/pgm.h
index 8e17cea3..ef3730dc 100644
--- a/secondary/pgm.h
+++ b/secondary/pgm.h
@@ -41,17 +41,16 @@ namespace SI
 	};
 
 	template <typename VALUE>
-	struct PGM_T : public pgm::PGMIndex<VALUE>, public PGM_i 
+	class PGM_T : public pgm::PGMIndex<VALUE,16>, public PGM_i 
 	{
-		PGM_T ()
-		{
-		}
+		using BASE = pgm::PGMIndex<VALUE,16>;
+		using BASE::BASE;
 
+	public:
 		template<typename RandomIt>
 		PGM_T ( RandomIt tBegin, RandomIt tEnd )
-			: pgm::PGMIndex<VALUE> ( tBegin, tEnd )
-		{
-		}
+			: BASE ( tBegin, tEnd )
+		{}
 
 		size_t Save ( std::vector<uint8_t> & dData ) const final
 		{
@@ -104,21 +103,9 @@ namespace SI
 		}
 
 		ApproxPos_t Search ( uint64_t uVal ) const final;
-
-		void WriteTypedKey ( util::MemWriter_c & tWr, VALUE tVal ) const
-		{
-			tWr.Pack_uint64 ( (uint64_t)tVal );
-		}
-
-		void LoadTypedKey ( util::FileReader_c & tRd, VALUE  & tVal ) const
-		{
-			tVal = tRd.Unpack_uint64();
-		}
-
-		bool IsEmpty () const final
-		{
-			return ( this->n==0 );
-		}
+		void		WriteTypedKey ( util::MemWriter_c & tWr, VALUE tVal ) const		{ tWr.Pack_uint64 ( (uint64_t)tVal ); }
+		void		LoadTypedKey ( util::FileReader_c & tRd, VALUE  & tVal ) const	{ tVal = tRd.Unpack_uint64(); }
+		bool		IsEmpty () const final											{ return this->n==0; }
 	};
 
 	template<>
diff --git a/secondary/secondary.cpp b/secondary/secondary.cpp
index 7c3aeb69..8e8a0851 100644
--- a/secondary/secondary.cpp
+++ b/secondary/secondary.cpp
@@ -539,7 +539,10 @@ uint32_t SecondaryIndex_c::GetNumIterators ( const common::Filter_t & tFilter )
 	switch ( tFixedFilter.m_eType )
 	{
 	case FilterType_e::VALUES:
-		return GetValsRows ( nullptr, tFixedFilter, nullptr, 0, 0, INT_MAX );
+	{
+		uint32_t uNumIterators = GetValsRows ( nullptr, tFixedFilter, nullptr, 0, 0, INT_MAX );
+		return std::min ( (uint32_t)tFilter.m_dValues.size(), uNumIterators );
+	}
 
 	case FilterType_e::RANGE:
 	case FilterType_e::FLOATRANGE: