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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2019/10/10 13:55:18 UTC
[GitHub] [incubator-shardingsphere] xfyang1989 opened a new issue #3215: SQL
execution is slow under sub-database sub-table
xfyang1989 opened a new issue #3215: SQL execution is slow under sub-database sub-table
URL: https://github.com/apache/incubator-shardingsphere/issues/3215
The following SQL sub-database sub-table query is very slow, nearly 1.5s, why? But it only takes a few milliseconds to execute in mysql.
Ic_sku_channel_inventory unique index(`sku_code`,`warehouse_code`,`first_channel`,`second_channel`),
`select id,first_channel, sku_code, version,second_channel,warehouse_code,warehouse_type,
inventory_num, normal_inventory_num, damage_inventory_num, locked_num, normal_locked_num, damage_locked_num,
transit_num,is_disable,is_deleted
from ic_sku_channel_inventory
where ( (sku_code in ( '1131378',
'724351',
'724350',
'724595',
'724239',
'721764',
'721761',
'724358',
'719607',
'717306',
'717307',
'717305',
'723692',
'721192',
'721394',
'723693',
'724544',
'721743',
'717299',
'719757',
'1134588',
'1134584',
'724334',
'721582',
'724298',
'1133778',
'721544',
'724335',
'724654',
'1145841',
'724606',
'724528',
'724605',
'717881',
'724526',
'724603',
'726788',
'724288',
'721411',
'724602',
'724601',
'724600',
'721377',
'724319',
'723427',
'724516',
'721007',
'721128',
'721766',
'721528')
AND warehouse_code = 'jtwlhz' AND first_channel='909900' AND second_channel = '0' )
or (sku_code in ( '721745' ) AND warehouse_code = 'jtwlhz' AND first_channel='909900' AND second_channel = '909902') );
`
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