Optimizer code cleanups, no logic changes

- Updated comments
- Added some extra DEBUG
- Indentation changes and break long lines
- Trivial code changes like:
  - Combining 2 statements in one
  - Reorder DBUG lines
  - Use a variable to store a pointer that is used multiple times
- Moved declaration of variables to start of loop/function
- Removed dead or commented code
- Removed wrong DBUG_EXECUTE code in best_extension_by_limited_search()

1 files changed, 1 insertions, 1 deletions

diff --git a/sql/opt_subselect.h b/sql/opt_subselect.h
index 7b1b810ee81..cc6d2fbbecb 100644
--- a/sql/opt_subselect.h
+++ b/sql/opt_subselect.h
@@ -320,7 +320,7 @@ void optimize_semi_joins(JOIN *join, table_map remaining_tables, uint idx,
 void update_sj_state(JOIN *join, const JOIN_TAB *new_tab,
                      uint idx, table_map remaining_tables);
 void restore_prev_sj_state(const table_map remaining_tables, 
-                                  const JOIN_TAB *tab, uint idx);
+                           const JOIN_TAB *tab, uint idx);
 
 void fix_semijoin_strategies_for_picked_join_order(JOIN *join);