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-rw-r--r--sql/sql_explain.cc9
1 files changed, 9 insertions, 0 deletions
diff --git a/sql/sql_explain.cc b/sql/sql_explain.cc
index b4adfe8546c..fd5f675add5 100644
--- a/sql/sql_explain.cc
+++ b/sql/sql_explain.cc
@@ -1033,6 +1033,9 @@ void Explain_select::print_explain_json(Explain_query *query,
writer->add_member("select_id").add_ll(select_id);
add_linkage(writer);
+ if (cost != 0.0)
+ writer->add_member("cost").add_double(cost);
+
if (is_analyze && time_tracker.get_loops())
{
writer->add_member("r_loops").add_ll(time_tracker.get_loops());
@@ -1942,7 +1945,13 @@ void Explain_table_access::print_explain_json(Explain_query *query,
else
writer->add_null();
}
+ }
+
+ if (cost != 0.0)
+ writer->add_member("cost").add_double(cost);
+ if (is_analyze)
+ {
if (op_tracker.get_loops())
{
double total_time= op_tracker.get_time_ms();