O2k-Network Labs Denmark

                

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O2k-Network Labs Denmark

Debug output SQLStore

ASK Query

[[Category:O2k-Network]] [[In country::Denmark]]

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 t2
INNER JOIN
  `t3` AS t3 ON t2.o_id=t3.id
INNER JOIN
  `smw_di_blob` AS t4 ON t2.s_id=t4.s_id) ON t0.smw_id=t2.s_id
WHERE
  (
   ((t4.o_hash='Denmark') AND t4.p_id=80900)
  )
  AND t0.smw_iw!=':smw'
  AND t0.smw_iw!=':smw-delete'
  AND t0.smw_iw!=':smw-redi'
ORDER BY
  t0.smw_sort ASC
LIMIT
  205
OFFSET
  0

SQL Explain

ID	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t4	ref	s_id, p_id, s_id_2, o_hash	p_id	262	const, const	92	100.00	Using index condition; Using temporary; Using filesort
1	SIMPLE	t0	eq_ref	PRIMARY, smw_id, smw_iw, smw_iw_2	PRIMARY	4	oroboros.t4.s_id	1	50.01	Using where
1	SIMPLE	t2	ref	s_id, o_id, s_id_2, o_id_2	s_id_2	4	oroboros.t4.s_id	1	100.00	Using index; Distinct
1	SIMPLE	t3	ALL	PRIMARY				2	50.00	Using where; Distinct; Using join buffer (Block Nested Loop)

Auxilliary Tables

• Temporary table t3
    Recursively computed hierarchy for element(s) (521).
    SELECT s_id FROM `smw_fpt_subc` WHERE o_id=521 LIMIT 1

Query Metrics

Query-Size:3
Query-Depth:1

Errors and Warnings

None