From 5ee1c25fa8043f81ad744d1c532b8c1dafa3b5ea Mon Sep 17 00:00:00 2001
From: Sergei Petrunia <psergey@askmonty.org>
Date: Sat, 6 Dec 2014 03:11:03 +0300
Subject: EXPLAIN FORMAT=JSON: Full scan on NULL key (join case)

---
 sql/sql_explain.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'sql/sql_explain.h')

diff --git a/sql/sql_explain.h b/sql/sql_explain.h
index ba5a5c2e6ec..a7ef0beb649 100644
--- a/sql/sql_explain.h
+++ b/sql/sql_explain.h
@@ -562,6 +562,7 @@ public:
     non_merged_sjm_number(0),
     extra_tags(root),
     range_checked_fer(NULL),
+    full_scan_on_null_key(false),
     start_dups_weedout(false),
     end_dups_weedout(false),
     where_cond(NULL),
@@ -634,6 +635,8 @@ public:
   
   /* Non-NULL values means this tab uses "range checked for each record" */
   Explain_range_checked_fer *range_checked_fer;
+ 
+  bool full_scan_on_null_key;
 
   // valid with ET_USING_JOIN_BUFFER
   EXPLAIN_BKA_TYPE bka_type;
-- 
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