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-rw-r--r--include/my_base.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/my_base.h b/include/my_base.h
index 14e4e3afb44..26d513ba2a7 100644
--- a/include/my_base.h
+++ b/include/my_base.h
@@ -47,6 +47,7 @@
#define HA_OPEN_ABORT_IF_CRASHED 16
#define HA_OPEN_FOR_REPAIR 32 /* open even if crashed */
#define HA_OPEN_FROM_SQL_LAYER 64
+#define HA_OPEN_MMAP 128 /* open memory mapped */
/* The following is parameter to ha_rkey() how to use key */