summaryrefslogtreecommitdiff
path: root/src/include
diff options
context:
space:
mode:
Diffstat (limited to 'src/include')
-rw-r--r--src/include/optimizer/cost.h15
1 files changed, 9 insertions, 6 deletions
diff --git a/src/include/optimizer/cost.h b/src/include/optimizer/cost.h
index 25301eb41de..5d9a6c821c7 100644
--- a/src/include/optimizer/cost.h
+++ b/src/include/optimizer/cost.h
@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.73 2006/03/05 15:58:57 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/optimizer/cost.h,v 1.74 2006/06/05 02:49:58 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -21,12 +21,14 @@
/* defaults for costsize.c's Cost parameters */
/* NB: cost-estimation code should use the variables, not these constants! */
/* If you change these, update backend/utils/misc/postgresql.sample.conf */
-#define DEFAULT_EFFECTIVE_CACHE_SIZE 1000.0 /* measured in pages */
+#define DEFAULT_SEQ_PAGE_COST 1.0
#define DEFAULT_RANDOM_PAGE_COST 4.0
#define DEFAULT_CPU_TUPLE_COST 0.01
#define DEFAULT_CPU_INDEX_TUPLE_COST 0.001
#define DEFAULT_CPU_OPERATOR_COST 0.0025
+#define DEFAULT_EFFECTIVE_CACHE_SIZE 1000.0 /* measured in pages */
+
/*
* prototypes for costsize.c
@@ -34,11 +36,12 @@
*/
/* parameter variables and flags */
-extern double effective_cache_size;
-extern double random_page_cost;
-extern double cpu_tuple_cost;
+extern DLLIMPORT double seq_page_cost;
+extern DLLIMPORT double random_page_cost;
+extern DLLIMPORT double cpu_tuple_cost;
extern DLLIMPORT double cpu_index_tuple_cost;
-extern double cpu_operator_cost;
+extern DLLIMPORT double cpu_operator_cost;
+extern double effective_cache_size;
extern Cost disable_cost;
extern bool enable_seqscan;
extern bool enable_indexscan;