Export scalarineqsel()

Author: Nikita Glukhov

src/backend/utils/adt/selfuncs.c

@@ -573,7 +573,7 @@ neqsel(PG_FUNCTION_ARGS)
  * it will return an approximate estimate based on assuming that the constant
  * value falls in the middle of the bin identified by binary search.
  */
-static double
+double
 scalarineqsel(PlannerInfo *root, Oid operator, bool isgt, bool iseq,
 			  Oid collation,
 			  VariableStatData *vardata, Datum constval, Oid consttype)

src/include/utils/selfuncs.h

@@ -249,6 +249,10 @@ extern List *add_predicate_to_index_quals(IndexOptInfo *index,
 extern void genericcostestimate(PlannerInfo *root, IndexPath *path,
 								double loop_count,
 								GenericCosts *costs);
+extern double scalarineqsel(PlannerInfo *root, Oid operator, bool isgt,
+							bool iseq, Oid collation,
+							VariableStatData *vardata, Datum constval,
+							Oid consttype);
 
 extern HeapTuple stats_form_tuple(StatsData *data);