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| author | Varun Gupta <varun.gupta@mariadb.com> | 2020-02-28 11:46:13 +0530 |
|---|---|---|
| committer | Varun Gupta <varun.gupta@mariadb.com> | 2020-02-28 15:15:51 +0530 |
| commit | 0c35e80dc9ff24bcb8e710cb8cb16428c8c9986f (patch) | |
| tree | e9ad708728c8f3b50fe75cb38a8f1a57c379e0da /sql/sql_analyze_stmt.cc | |
| parent | 8db623038f7158529e804e9607362939bff37337 (diff) | |
| download | mariadb-git-0c35e80dc9ff24bcb8e710cb8cb16428c8c9986f.tar.gz | |
MDEV-21838: Add information about packed addon fields in ANALYZE FORMAT=JSON10.5-mdev21784-reg1-base
It is useful to know whether sorting uses addon fields[packed|unpacked] or ROWID.
Provide this information in ANALYZE FORMAT=JSON output.
Diffstat (limited to 'sql/sql_analyze_stmt.cc')
| -rw-r--r-- | sql/sql_analyze_stmt.cc | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sql/sql_analyze_stmt.cc b/sql/sql_analyze_stmt.cc index fdabcf1e494..2147d6d7ffc 100644 --- a/sql/sql_analyze_stmt.cc +++ b/sql/sql_analyze_stmt.cc @@ -26,6 +26,7 @@ void Filesort_tracker::print_json_members(Json_writer *writer) { const char *varied_str= "(varied across executions)"; + String str; if (!get_r_loops()) writer->add_member("r_loops").add_null(); @@ -78,6 +79,25 @@ void Filesort_tracker::print_json_members(Json_writer *writer) else writer->add_size(sort_buffer_size); } + + get_data_format(&str); + writer->add_member("r_sort_mode").add_str(str.c_ptr(), str.length()); +} + +void Filesort_tracker::get_data_format(String *str) +{ + str->append("sort_key"); + str->append(","); + + if (r_using_addons) + { + if (r_packed_addon_fields) + str->append("packed_addon_fields"); + else + str->append("addon_fields"); + } + else + str->append("rowid"); } void attach_gap_time_tracker(THD *thd, Gap_time_tracker *gap_tracker, |