Restored HnswNormValue [skip ci]

src/hnswutils.c

@@ -152,6 +152,15 @@ HnswOptionalProcInfo(Relation index, uint16 procnum)
 	return index_getprocinfo(index, 1, procnum);
 }
 
+/*
+ * Normalize value
+ */
+Datum
+HnswNormValue(const HnswTypeInfo * typeInfo, Datum value)
+{
+	return DirectFunctionCall1(typeInfo->normalize, value);
+}
+
 /*
  * Check if non-zero norm
  */