Fix mistake in README per comment from Matthias van de Meent.

diff --git a/src/backend/access/conveyor/README b/src/backend/access/conveyor/README
index 109a7588d130cbc5e8948ab1ee68a36dc2c5d9a0..a500a1cdbc096c5f9e5e260b777bb49b3466e840 100644 (file)
--- a/src/backend/access/conveyor/README
+++ b/src/backend/access/conveyor/README
@@ -25,7 +25,7 @@ Conceptually, a relation fork organized as a conveyor belt has three parts:
   to store. The conveyor belt doesn't care what you store in a payload page,
   but it does require that you store something: each time a payload page is
   initialized, it must end up with either pd_lower > SizeOfPageHeaderData,
-  or pd_lower < BLCKSZ.
+  or pd_upper < BLCKSZ.
 
 - Index. The index translates logical page numbers to physical block
   numbers.  The intention is that pages might be physically relocated - e.g.