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-rw-r--r--myisam/myisamdef.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/myisam/myisamdef.h b/myisam/myisamdef.h
index 9e87f51a6be..12e2c8e4bec 100644
--- a/myisam/myisamdef.h
+++ b/myisam/myisamdef.h
@@ -280,6 +280,9 @@ struct st_myisam_info {
my_bool page_changed; /* If info->buff can't be used for rnext */
my_bool buff_used; /* If info->buff has to be reread for rnext */
my_bool once_flags; /* For MYISAMMRG */
+#ifdef __WIN__
+ my_bool owned_by_merge; /* This MyISAM table is part of a merge union */
+#endif
#ifdef THREAD
THR_LOCK_DATA lock;
#endif