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-rw-r--r--src/include/config.h.in9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/include/config.h.in b/src/include/config.h.in
index 9afb5e251f0..20e5e5c3777 100644
--- a/src/include/config.h.in
+++ b/src/include/config.h.in
@@ -22,6 +22,15 @@
#define MAXBACKENDS (DEF_MAXBACKENDS > 1024 ? DEF_MAXBACKENDS : 1024)
/*
+ * Default number of buffers in shared buffer pool (each of size BLCKSZ).
+ * This is just the default setting for the postmaster's -B switch.
+ * Perhaps it ought to be configurable from a configure switch.
+ * NOTE: default setting corresponds to the minimum number of buffers
+ * that postmaster.c will allow for the default MaxBackends value.
+ */
+#define DEF_NBUFFERS (DEF_MAXBACKENDS > 8 ? DEF_MAXBACKENDS * 2 : 16)
+
+/*
* Size of a disk block --- currently, this limits the size of a tuple.
* You can set it bigger if you need bigger tuples.
*/