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EXPLAIN FORMAT=JSON: Full scan on NULL key (join case)

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This commit is contained in:
Sergei Petrunia
2014-12-06 03:11:03 +03:00
parent a80a797686
commit 5ee1c25fa8
5 changed files with 85 additions and 0 deletions
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3
sql/sql_explain.h
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@@ -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;