Sergei Petrunia
125001881d
Fix typos in JSON MRR output
2015-09-24 16:31:45 +03:00
Sergei Petrunia
7016621596
MDEV-8829: Assertion `0' failed in Explain_table_access::tag_to_json
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- Add EXPLAIN/ANALYZE FORMAT=JSON handling for a few special cases.
2015-09-24 15:45:54 +03:00
Oleksandr Byelkin
da3ec3d421
MDEV-7970: EXPLAIN FORMAT=JSON does not print HAVING
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Printing non-trivial HAVING added.
2015-09-18 16:08:13 +02:00
Alexander Barkov
8e553c455c
MDEV-8785 Wrong results for EXPLAIN EXTENDED...WHERE NULLIF(latin1_col, _utf8'a' COLLATE utf8_bin) IS NOT NULL
2015-09-10 15:01:44 +04:00
Alexander Barkov
4278d6d402
MDEV-8786 Wrong result for SELECT FORMAT=JSON * FROM t1 WHERE a=_latin1 0xDF
2015-09-10 14:04:52 +04:00
Oleksandr Byelkin
e3982cead2
MDEV-6066: Merge new defaults from 5.6 and 5.7 (defaults changed, QC can be stopped with no-zero size)
2015-09-04 10:33:56 +02:00
Sergei Petrunia
64424f9886
Update test results
2015-07-02 10:24:02 +03:00
Sergei Petrunia
2bbf3b89f6
MDEV-7836: ANALYZE FORMAT=JSON should provide info about GROUP/ORDER BY
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Fix EXPLAIN FORMAT=JSON to produce output that's not worse than
the tabular form.
2015-04-12 06:07:58 +02:00
Sergei Petrunia
0719df781e
Merge
2015-04-12 04:59:34 +03:00
Sergei Petrunia
4938b82263
MDEV-7836: ANALYZE FORMAT=JSON should provide info about GROUP/ORDER BY
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Provide basic info about sorting/grouping done by the queries.
2015-04-12 04:48:42 +03:00
Oleksandr Byelkin
b05383cb14
MDEV-7835: ANALYZE FORMAT=JSON should show buffer sizes
2015-04-09 14:51:23 +02:00
Sergei Petrunia
66ff1632f5
MDEV-7860: EXPLAIN FORMAT=JSON crashes for loose scan query
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(Based on original patch by Sanja Byelkin)
Make the code that produces JSON output handle LooseScan quick select.
The output we produce is compatible with MySQL 5.6.
2015-04-08 16:26:22 +03:00
Sergei Petrunia
2b475b567e
MDEV-7927: Server crashes in in Time_and_counter_tracker::incr_loops
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- JOIN::save_explain_data should also set JOIN::tracker (it already
sets join_tab[0].tracker). This is needed for UNIONs inside subqueries.
2015-04-08 03:33:48 +03:00
Sergei Petrunia
4da7aa55f6
Add a testcase for EXPLAIN FORMAT=JSON for ROR-union index_merge.
2015-02-17 18:43:22 +03:00
Sergei Petrunia
b372720177
Update test results
2014-12-06 20:34:33 +03:00
Sergei Petrunia
913b7672c5
Merge bb-10.1-explain-json into 10.1
2014-12-06 20:33:25 +03:00
Sergei Petrunia
eeef80d09f
EXPLAIN FORMAT=JSON : Fix MDEV-7266, bug in pretty-printer
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- Single_line_formatting_helper should not accidentally exit the
DISABLED state. No JSON construct should be able to move the
Single_line_formatting_helper from DISABLED state.
2014-12-06 20:13:38 +03:00
Sergei Petrunia
dc259324d7
EXPLAIN JSON: Print out the "expensive constant condition" attached to joins.
2014-12-06 19:27:42 +03:00
Sergei Petrunia
1e3f09f163
MDEV-7264: Assertion `0' failed in subselect_engine::get_identifier()
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Switch EXPLAIN JSON from using subselect_engine::get_identifier()
to the number from Item_subselect::unit.
Remove subselect_union_engine::get_identifier() because it was added
only for EXPLAIN JSON code.
2014-12-06 04:02:30 +03:00
Sergei Petrunia
5ee1c25fa8
EXPLAIN FORMAT=JSON: Full scan on NULL key (join case)
2014-12-06 03:11:03 +03:00
Sergei Petrunia
a80a797686
EXPLAIN FORMAT=JSON: Support "range checked for each record"
2014-12-06 02:23:37 +03:00
Sergei Petrunia
9cac7649ea
EXPLAIN FORMAT=JSON: Support range+MRR plans (when MRR is used but BKA is not)
2014-12-06 01:11:22 +03:00
Sergei Petrunia
0000695025
EXPLAIN FORMAT=JSON
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Add support for semi-join strategies: FirstMatch, DuplicateWeedout,
LooseScan.
2014-12-02 01:40:10 +03:00
Sergei Petrunia
753718c201
EXPLAIN FORMAT=JSON: support SJ-Materialization
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- Switch Explain data structure from "flat" representation of
SJ-Materialization into nested one.
- Update functions that print tabular output to operate on the
nested structure.
- Add function to generate JSON output.
2014-12-01 21:35:31 +03:00
Sergei Petrunia
c46eadb2b3
EXPLAIN FORMAT=JSON: support EXPLAIN FORMAT=JSON INSERT ...
2014-11-29 03:28:46 +03:00
Sergei Petrunia
0b5d989c89
EXPLAIN FORMAT=JSON: Add support for non-merged semi-joins
2014-11-29 01:08:18 +03:00
Sergei Petrunia
2ac3b39e68
EXPLAIN FORMAT=JSON: support derived tables
2014-11-28 22:23:29 +03:00
Sergei Petrunia
3a5e080d4d
Make explain_json.test pass on case-insensitive FS.
2014-11-28 16:46:05 +03:00
Sergei Petrunia
d5fbfb9a93
EXPLAIN FORMAT=JSON: Add support for single-table UPDATE/DELETE.
2014-11-28 02:36:31 +03:00
Sergei Petrunia
461dbd80d2
EXPLAIN FORMAT=JSON: support join buffering
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- Basic support for JOIN buffering
- The output is not polished but catches the main point:
tab->select_cond and tab->cache_select->cond are printed separately.
- Hash join support is poor still.
- Also fixed identation in JOIN_TAB::save_explain_data
2014-11-27 23:10:44 +03:00
Sergei Petrunia
37c444e1a0
EXPLAIN FORMAT=JSON: further development
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Writing JSON:
- Fix a bug in Single_line_formatting_helper
- Add Json_writer_nesting_guard - safety class
EXPLAIN JSON support
- Add basic subquery support
- Add tests for UNION/UNION ALL.
2014-11-27 19:32:48 +03:00
Sergei Petrunia
3c5ce8a0a3
Make testsuite to pass
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- Drop all tables in explain_json.test
- Tabular form should print ref='' when type='fulltext' (another peculiarity
of the traditional EXPLAIN format)
- String_list::append_str should allocate memory for \0, too
- Some temporary code for EXPLAIN JSON and join buffering.
2014-11-21 21:44:06 +03:00
Sergei Petrunia
041e03e251
EXPLAIN FORMAT=JSON: produce used_key_parts, JSON-ish output for index_merge.
2014-08-14 01:12:05 +04:00
Sergei Petrunia
a9d43d70f5
EXPLAIN FORMAT=JSON: produce the 'ref' column.
2014-08-12 18:14:56 +04:00
Sergei Petrunia
84485dbe7c
MDEV-6109: EXPLAIN JSON
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Add pretty-printing of possible_keys column.
2014-08-12 15:02:09 +04:00
Sergei Petrunia
33d53c4c24
MDEV-6109: EXPLAIN JSON
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- Add first testcases
- Don't overquote when printing conditions
- Other small output fixes
2014-08-09 06:37:56 +04:00
