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Debug output SQLStore

ASK Query

[[Category:Mathematics]]

SQL Query

SELECT DISTINCT
  t0.smw_id AS id,
  t0.smw_title AS t,
  t0.smw_namespace AS ns,
  t0.smw_iw AS iw,
  t0.smw_subobject AS so,
  t0.smw_sortkey AS sortkey, t0.smw_sort
FROM
  `smw_object_ids` AS t0
INNER JOIN
  (`smw_fpt_inst` AS t1
INNER JOIN
  `t2` AS t2 ON t1.o_id=t2.id) ON t0.smw_id=t1.s_id
WHERE
  t0.smw_iw!=':smw'
  AND t0.smw_iw!=':smw-delete'
  AND t0.smw_iw!=':smw-redi'
ORDER BY
  t0.smw_sort ASC
LIMIT
  55
OFFSET
  0

SQL Explain

ID	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t2	ALL	PRIMARY				39		Using temporary; Using filesort
1	SIMPLE	t1	ref	s_id, o_id, s_id_2, o_id_2	o_id_2	5	my_wiki.t2.id	2		Using index
1	SIMPLE	t0	eq_ref	PRIMARY, smw_id, smw_iw, smw_iw_2	PRIMARY	4	my_wiki.t1.s_id	1		Using where

Auxilliary Tables

• Temporary table t2
    Recursively computed hierarchy for element(s) (1255).
    SELECT s_id FROM `smw_fpt_subc` WHERE o_id=1255 LIMIT 1

Query Metrics

Query-Size:1
Query-Depth:0

Errors and Warnings

None