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//так как в mysql есть ограничение на джойны (61), делаем следующим образом:...-
PHP / Говнокод #3938
+175
Запостил:
ReallyBugMeNot,
11 Августа 2010
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Впрочем, авторы этих отчетов навряли ставят такие комментарии. Да и в использование в них MySQL я не очень верю.
PS: да! И уж конечно такие отчеты делаются ночью, а не каждый раз по запросу пыха
SELECT ct.com_id, cdt.com_name, ct.tax_id, pt.tax_name, tt.date FROM com_table AS ct LEFT OUTER
JOIN com_des_table AS cdt ON cdt.id = ct.com_id LEFT OUTER JOIN payments_table AS pt ON pt.id =
ct.tax_id LEFT OUTER JOIN tax_table AS tt ON tt.tax_id = ct.tax_id WHERE ct.tax_id LIKE '001%' and
ct.com_id = '1' UNION SELECT ct.com_id, cdt.com_name, ct.tax_id, rt.tax_name, tt.date FROM com_table
AS ct LEFT OUTER JOIN com_des_table AS cdt ON cdt.id = ct.com_id LEFT OUTER JOIN reports_table AS
rt ON rt.id = ct.tax_id LEFT OUTER JOIN tax_table AS tt ON tt.tax_id = ct.tax_id WHERE ct.tax_id LIKE
'002%' and ct.com_id = '1' UNION SELECT ct.com_id, cdt.com_name, ct.tax_id, pt.tax_name, tt.date FROM
com_table AS ct LEFT OUTER JOIN com_des_table AS cdt ON cdt.id = ct.com_id LEFT OUTER JOIN
payments_table AS pt ON pt.id = ct.tax_id LEFT OUTER JOIN tax_table AS tt ON tt.tax_id = ct.tax_id
WHERE ct.tax_id LIKE '001%' and ct.com_id = '0' UNION SELECT ct.com_id, cdt.com_name, ct.tax_id,
rt.tax_name, tt.date FROM com_table AS ct LEFT OUTER JOIN com_des_table AS cdt ON cdt.id = ct.com_id
LEFT OUTER JOIN reports_table AS rt ON rt.id = ct.tax_id LEFT OUTER JOIN tax_table AS tt ON tt.tax_id =
ct.tax_id WHERE ct.tax_id LIKE '002%' and ct.com_id = '0' UNION SELECT ct.com_id, cdt.com_name,
ct.tax_id, pt.tax_name, tt.date FROM com_table AS ct LEFT OUTER JOIN com_des_table AS cdt ON cdt.id =
ct.com_id LEFT OUTER JOIN payments_table AS pt ON pt.id = ct.tax_id LEFT OUTER JOIN tax_table AS tt
ON tt.tax_id = ct.tax_id WHERE ct.tax_id LIKE '001%' and ct.com_id = '2' UNION SELECT ct.com_id,
cdt.com_name, ct.tax_id, rt.tax_name, tt.date FROM com_table AS ct LEFT OUTER JOIN com_des_table AS
cdt ON cdt.id = ct.com_id LEFT OUTER JOIN reports_table AS rt ON rt.id = ct.tax_id LEFT OUTER JOIN
tax_table AS tt ON tt.tax_id = ct.tax_id WHERE ct.tax_id LIKE '002%' and ct.com_id = '2'
Если пых был CGIкой -- он умер и порвал коннект.
Если модулем -- будет жить пока не умрет его апач (не кончится maxRequestsPerChild например).
http://dev.mysql.com/doc/refman/5.1/en/mysql-options.html
MYSQL_OPT_CONNECT_TIMEOUT (argument type: unsigned int *)
Connect timeout in seconds.
и дальше.
ну и таймаут локов.
...configuration directive max_execution_time only affect the execution time of the script itself. Any time spent on activity that happens outside the execution of the script such as system calls using system(), stream operations, database queries, etc. is not included when determining the maximum time that the script has been running. This is not true on Windows where the measured time is real.