Restored HnswNormValue [skip ci]

src/hnsw.h

@@ -377,6 +377,7 @@ typedef struct HnswVacuumState
 int			HnswGetM(Relation index);
 int			HnswGetEfConstruction(Relation index);
 FmgrInfo   *HnswOptionalProcInfo(Relation index, uint16 procnum);
+Datum		HnswNormValue(const HnswTypeInfo * typeInfo, Datum value);
 bool		HnswCheckNorm(FmgrInfo *procinfo, Oid collation, Datum value);
 Buffer		HnswNewBuffer(Relation index, ForkNumber forkNum);
 void		HnswInitPage(Buffer buf, Page page);

src/hnswbuild.c

@@ -498,7 +498,7 @@ InsertTuple(Relation index, Datum *values, bool *isnull, ItemPointer heaptid, Hn
 		if (!HnswCheckNorm(buildstate->normprocinfo, buildstate->collation, value))
 			return false;
 
-		value = DirectFunctionCall1(typeInfo->normalize, value);
+		value = HnswNormValue(typeInfo, value);
 	}
 
 	/* Get datum size */

src/hnswinsert.c

@@ -630,7 +630,7 @@ HnswInsertTuple(Relation index, Datum *values, bool *isnull, ItemPointer heap_ti
 		if (!HnswCheckNorm(normprocinfo, collation, value))
 			return;
 
-		value = DirectFunctionCall1(typeInfo->normalize, value);
+		value = HnswNormValue(typeInfo, value);
 	}
 
 	HnswInsertTupleOnDisk(index, value, values, isnull, heap_tid, false);

src/hnswscan.c

@@ -61,7 +61,7 @@ GetScanValue(IndexScanDesc scan)
 
 		/* Fine if normalization fails */
 		if (so->normprocinfo != NULL)
-			value = DirectFunctionCall1(so->typeInfo->normalize, value);
+			value = HnswNormValue(so->typeInfo, value);
 	}
 
 	return value;

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
  */