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From CODECS: Online Database and e-Resources for Celtic Studies
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Debug output SQLStore
ASK Query
[[Page describes::Reference]] [[Pub has contributor::Loth (J.)]] [[Type::article]] [[Pub is part of pub::None]] OR [[Class::Subject:publication items]] [[Pub has contributor (author)::Loth (J.)]] [[Is item in publication.Type::journal volume]]
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, t25.o_hash
FROM
`o2a5_smw_object_ids` AS t0
INNER JOIN
`o2a5_t1` AS t1 ON t0.smw_id=t1.id
INNER JOIN
`o2a5_smw_di_blob` AS t25 ON t0.smw_id=t25.s_id
WHERE
(t25.p_id=4978056)
AND t0.smw_iw!=':smw'
AND t0.smw_iw!=':smw-delete'
AND t0.smw_iw!=':smw-redi'
ORDER BY
t25.o_hash DESC
LIMIT
105
OFFSET
100
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, t25.o_hash
FROM
`o2a5_smw_object_ids` AS t0
INNER JOIN
`o2a5_t1` AS t1 ON t0.smw_id=t1.id
INNER JOIN
`o2a5_smw_di_blob` AS t25 ON t0.smw_id=t25.s_id
WHERE
(t25.p_id=4978056)
AND t0.smw_iw!=':smw'
AND t0.smw_iw!=':smw-delete'
AND t0.smw_iw!=':smw-redi'
ORDER BY
t25.o_hash DESC
LIMIT
105
OFFSET
100
SQL Explain
ID | select_type | table | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
---|---|---|---|---|---|---|---|---|---|---|
1 | SIMPLE | Impossible WHERE noticed after reading const tables |
Auxilliary Tables
- Temporary table t1
INSERT IGNORE INTO `o2a5_t1` SELECT DISTINCT t3.s_id FROM `o2a5_smw_di_blob` AS t3 INNER JOIN (`o2a5_smw_di_wikipage` AS t5 INNER JOIN `o2a5_t6` AS t6 ON t5.p_id=t6.id) ON t3.s_id=t5.s_id INNER JOIN `o2a5_smw_di_blob` AS t8 ON t3.s_id=t8.s_id INNER JOIN `o2a5_smw_di_wikipage` AS t10 ON t3.s_id=t10.s_id WHERE (t3.o_hash='Reference') AND t3.p_id=4978044 AND (t5.o_id=1830882) AND ((t8.o_hash='article') AND t8.p_id=4978065) AND (t10.p_id=4978060 AND t10.o_id=4978061)
INSERT IGNORE INTO `o2a5_t1` SELECT DISTINCT t14.s_id FROM `o2a5_smw_di_wikipage` AS t14 INNER JOIN `o2a5_smw_di_wikipage` AS t17 ON t14.s_id=t17.s_id INNER JOIN (`o2a5_smw_di_wikipage` AS t20 INNER JOIN `o2a5_smw_di_blob` AS t22 ON t20.o_id=t22.s_id) ON t14.s_id=t20.s_id WHERE t14.p_id=3835477 AND t14.o_id=2489295 AND (t17.p_id=1795916 AND t17.o_id=1830882) AND (t20.p_id=2485349 AND ((t22.o_hash='journal volume') AND t22.p_id=4978065)) - Temporary table t6
Recursively computed hierarchy for element(s) (1796067).
SELECT s_id FROM `o2a5_smw_fpt_subp` WHERE o_id=1796067 LIMIT 1
Query Metrics
Query-Size:15Query-Depth:2
Errors and Warnings
None