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-rw-r--r--sql/sql_table.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/sql/sql_table.h b/sql/sql_table.h
index 98c4a7d45fa..7f02fb5a1e3 100644
--- a/sql/sql_table.h
+++ b/sql/sql_table.h
@@ -58,6 +58,7 @@ enum enum_explain_filename_mode
/* depends on errmsg.txt Database `db`, Table `t` ... */
#define EXPLAIN_FILENAME_MAX_EXTRA_LENGTH 63
+/* Shadow FRM is new FRM file that replaces the old one */
#define WFRM_WRITE_SHADOW 1
#define WFRM_INSTALL_SHADOW 2
#define WFRM_KEEP_SHARE 4