Added debug message for index scan

This commit is contained in:
Andrew Kane
2023-03-26 12:45:44 -07:00
parent 50005d7326
commit 121baa411e

View File

@@ -111,6 +111,7 @@ GetScanItems(IndexScanDesc scan, Datum value)
Datum datum; Datum datum;
bool isnull; bool isnull;
TupleDesc tupdesc = RelationGetDescr(scan->indexRelation); TupleDesc tupdesc = RelationGetDescr(scan->indexRelation);
double tuples = 0;
#if PG_VERSION_NUM >= 120000 #if PG_VERSION_NUM >= 120000
TupleTableSlot *slot = MakeSingleTupleTableSlot(so->tupdesc, &TTSOpsVirtual); TupleTableSlot *slot = MakeSingleTupleTableSlot(so->tupdesc, &TTSOpsVirtual);
@@ -159,6 +160,8 @@ GetScanItems(IndexScanDesc scan, Datum value)
ExecStoreVirtualTuple(slot); ExecStoreVirtualTuple(slot);
tuplesort_puttupleslot(so->sortstate, slot); tuplesort_puttupleslot(so->sortstate, slot);
tuples++;
} }
searchPage = IvfflatPageGetOpaque(page)->nextblkno; searchPage = IvfflatPageGetOpaque(page)->nextblkno;
@@ -167,6 +170,13 @@ GetScanItems(IndexScanDesc scan, Datum value)
} }
} }
/* TODO Scan more lists */
if (tuples < 100)
ereport(DEBUG1,
(errmsg("index scan found few tuples"),
errdetail("index may have been created without data or lists is too high"),
errhint("recreate the index and possibly decrease lists")));
tuplesort_performsort(so->sortstate); tuplesort_performsort(so->sortstate);
} }