User:Jeroen De Dauw/debug

Disjunction

Debug output SQLStore

ASK Query

[[Category:API]] OR [[Country::China]]

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
  `t1` AS t1 ON t0.smw_id=t1.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	t1	ALL	PRIMARY				42		Using temporary; Using filesort
1	SIMPLE	t0	eq_ref	PRIMARY, smw_id, smw_iw, smw_iw_2	PRIMARY	4	DB9907220070920.t1.id	1		Using where

Auxilliary Tables

• Temporary table t1
    INSERT IGNORE INTO `t1` SELECT DISTINCT t2.s_id FROM `smw_fpt_inst` AS t2 INNER JOIN `t3` AS t3 ON t2.o_id=t3.id
    INSERT IGNORE INTO `t1` SELECT DISTINCT t4.s_id FROM `smw_di_wikipage` AS t4 WHERE t4.p_id='148394' AND t4.o_id='7236'
• Temporary table t3
    Recursively computed hierarchy for element(s) ('14629').
    SELECT s_id FROM `smw_fpt_subc` WHERE o_id='14629' LIMIT 1

Query Metrics

Query-Size:3
Query-Depth:1

Errors and Warnings

None

Nested disjunctions

Debug output SQLStore

ASK Query

[[Category:API]] OR [[Country::China]] OR [[Capital of::France]] OR [[Country::Germany]]

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
  `t1` AS t1 ON t0.smw_id=t1.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	t1	ALL	PRIMARY				66		Using temporary; Using filesort
1	SIMPLE	t0	eq_ref	PRIMARY, smw_id, smw_iw, smw_iw_2	PRIMARY	4	DB9907220070920.t1.id	1		Using where

Auxilliary Tables

• Temporary table t1
    INSERT IGNORE INTO `t1` SELECT DISTINCT t2.s_id FROM `smw_fpt_inst` AS t2 INNER JOIN `t3` AS t3 ON t2.o_id=t3.id
    INSERT IGNORE INTO `t1` SELECT DISTINCT t4.s_id FROM `smw_di_wikipage` AS t4 WHERE t4.p_id='148394' AND t4.o_id='7236'
    INSERT IGNORE INTO `t1` SELECT DISTINCT t7.s_id FROM `smw_di_wikipage` AS t7 WHERE t7.p_id='148243' AND t7.o_id='798'
    INSERT IGNORE INTO `t1` SELECT DISTINCT t10.s_id FROM `smw_di_wikipage` AS t10 WHERE t10.p_id='148394' AND t10.o_id='779'
• Temporary table t3
    Recursively computed hierarchy for element(s) ('14629').
    SELECT s_id FROM `smw_fpt_subc` WHERE o_id='14629' LIMIT 1

Query Metrics

Query-Size:7
Query-Depth:1

Errors and Warnings

None

Disjunctions in a conjunction

Debug output SQLStore

ASK Query

[[Category:API]] OR [[Country::China]] [[Capital of::France]] OR [[Country::Germany]]

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
  (`t8` AS t8
INNER JOIN
  `t2` AS t2 ON t8.id=t2.id) ON t0.smw_id=t8.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	t8	ALL	PRIMARY				24		Using temporary; Using filesort
1	SIMPLE	t2	eq_ref	PRIMARY	PRIMARY	4	DB9907220070920.t8.id	1
1	SIMPLE	t0	eq_ref	PRIMARY, smw_id, smw_iw, smw_iw_2	PRIMARY	4	DB9907220070920.t8.id	1		Using where

Auxilliary Tables

• Temporary table t8
    INSERT IGNORE INTO `t8` SELECT DISTINCT t9.s_id FROM `smw_di_wikipage` AS t9 WHERE t9.p_id='148243' AND t9.o_id='798'
    INSERT IGNORE INTO `t8` SELECT DISTINCT t12.s_id FROM `smw_di_wikipage` AS t12 WHERE t12.p_id='148394' AND t12.o_id='779'
• Temporary table t2
    INSERT IGNORE INTO `t2` SELECT DISTINCT t3.s_id FROM `smw_fpt_inst` AS t3 INNER JOIN `t4` AS t4 ON t3.o_id=t4.id
    INSERT IGNORE INTO `t2` SELECT DISTINCT t5.s_id FROM `smw_di_wikipage` AS t5 WHERE t5.p_id='148394' AND t5.o_id='7236'
• Temporary table t4
    Recursively computed hierarchy for element(s) ('14629').
    SELECT s_id FROM `smw_fpt_subc` WHERE o_id='14629' LIMIT 1

Query Metrics

Query-Size:7
Query-Depth:1

Errors and Warnings

None