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-rw-r--r--sql/filesort.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/filesort.h b/sql/filesort.h
index c1a101cc1e8..a4056415d32 100644
--- a/sql/filesort.h
+++ b/sql/filesort.h
@@ -31,6 +31,8 @@ ha_rows filesort(THD *thd, TABLE *table, st_sort_field *sortorder,
ha_rows max_rows, bool sort_positions,
ha_rows *examined_rows);
void filesort_free_buffers(TABLE *table, bool full);
+double get_merge_many_buffs_cost(uint *buffer, uint last_n_elems,
+ int elem_size);
void change_double_for_sort(double nr,uchar *to);
#endif /* FILESORT_INCLUDED */