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-rw-r--r--sql/sql_select.cc3
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index f88a14c3312..2bdf897a85f 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -6372,7 +6372,8 @@ greedy_search(JOIN *join,
uint size_remain; // cardinality of remaining_tables
POSITION best_pos;
JOIN_TAB *best_table; // the next plan node to be added to the curr QEP
- uint n_tables; // ==join->tables or # tables in the sj-mat nest we're optimizing
+ // ==join->tables or # tables in the sj-mat nest we're optimizing
+ uint __attribute__((unused)) n_tables;
DBUG_ENTER("greedy_search");