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EXPLAIN FORMAT=JSON: Support range+MRR plans (when MRR is used but BKA is not)

This commit is contained in:
Sergei Petrunia
2014-12-06 01:11:22 +03:00
parent 8fb2c80fdb
commit 9cac7649ea
4 changed files with 53 additions and 0 deletions

View File

@ -1144,6 +1144,9 @@ void Explain_table_access::tag_to_json(Json_writer *writer, enum explain_extra_t
case ET_LOOSESCAN:
writer->add_member("loose_scan").add_bool(true);
break;
case ET_USING_MRR:
writer->add_member("mrr_type").add_str(mrr_type.c_ptr());
break;
default:
DBUG_ASSERT(0);
}