Split ExecStoreTuple into ExecStoreHeapTuple and ExecStoreBufferHeapTuple.

Upcoming changes introduce further types of tuple table slots, in
preparation of making table storage pluggable. New storage methods
will have different representation of tuples, therefore the slot
accessor should refer explicitly to heap tuples.

Instead of just renaming the functions, split it into one function
that accepts heap tuples not residing in buffers, and one accepting
ones in buffers.  Previously one function was used for both, but that
was a bit awkward already, and splitting will allow us to represent
slot types for tuples in buffers and normal memory separately.

This is split out from the patch introducing abstract slots, as this
largely consists out of mechanical changes.

Author: Ashutosh Bapat
Reviewed-By: Andres Freund
Discussion: https://postgr.es/m/20180220224318.gw4oe5jadhpmcdnm@alap3.anarazel.de

1 files changed, 6 insertions, 4 deletions

diff --git a/src/include/executor/tuptable.h b/src/include/executor/tuptable.h
index c51d89b0c0a..43150d13b1e 100644
--- a/src/include/executor/tuptable.h
+++ b/src/include/executor/tuptable.h
@@ -153,10 +153,12 @@ extern void ExecResetTupleTable(List *tupleTable, bool shouldFree);
 extern TupleTableSlot *MakeSingleTupleTableSlot(TupleDesc tupdesc);
 extern void ExecDropSingleTupleTableSlot(TupleTableSlot *slot);
 extern void ExecSetSlotDescriptor(TupleTableSlot *slot, TupleDesc tupdesc);
-extern TupleTableSlot *ExecStoreTuple(HeapTuple tuple,
-			   TupleTableSlot *slot,
-			   Buffer buffer,
-			   bool shouldFree);
+extern TupleTableSlot *ExecStoreHeapTuple(HeapTuple tuple,
+				   TupleTableSlot *slot,
+				   bool shouldFree);
+extern TupleTableSlot *ExecStoreBufferHeapTuple(HeapTuple tuple,
+						 TupleTableSlot *slot,
+						 Buffer buffer);
 extern TupleTableSlot *ExecStoreMinimalTuple(MinimalTuple mtup,
 					  TupleTableSlot *slot,
 					  bool shouldFree);