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Posted to notifications@shardingsphere.apache.org by "young138120 (via GitHub)" <gi...@apache.org> on 2023/04/20 12:53:14 UTC
[GitHub] [shardingsphere] young138120 opened a new issue, #25251: single table can not join with sharding table
young138120 opened a new issue, #25251:
URL: https://github.com/apache/shardingsphere/issues/25251
version: 5.3.2
backgroud:
i have big many tables with more than 100 million rows in database_a，i want split those tables by year ，and move it to anther databases like database_2020,databse_2021,database_2022。
i use shardingsphere proxy server to sharding select , i don't execute any insert or update dml
now ,i set database_a datasource to single table datasource , you know many of other table in databse_a exclude big table.
i run join sql with singe table and sharding table , proxy server will scan all of sharding table like this:
i get some advice from sphereEx , i need to change single table to broadcast table ，because of single table can not join with sharding table。
so how can i design it ？
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[GitHub] [shardingsphere] tuichenchuxin commented on issue #25251: single table can not join with sharding table
Posted by "tuichenchuxin (via GitHub)" <gi...@apache.org>.
tuichenchuxin commented on issue #25251:
URL: https://github.com/apache/shardingsphere/issues/25251#issuecomment-1517507843
Sharding table can't join with single table with different database. If your single table data is not big enough, you can try to change it to broadcast table.
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[GitHub] [shardingsphere] young138120 commented on issue #25251: single table can not join with sharding table
Posted by "young138120 (via GitHub)" <gi...@apache.org>.
young138120 commented on issue #25251:
URL: https://github.com/apache/shardingsphere/issues/25251#issuecomment-1518925754
> use experimental features federation
i already tried it ，not work for me
you can find configuration here https://github.com/apache/shardingsphere/issues/25260#issuecomment-1518925033
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[GitHub] [shardingsphere] young138120 commented on issue #25251: single table can not join with sharding table
Posted by "young138120 (via GitHub)" <gi...@apache.org>.
young138120 commented on issue #25251:
URL: https://github.com/apache/shardingsphere/issues/25251#issuecomment-1517515730
> Sharding table can't join with single table with different database. If your single table data is not big enough, you can try to change it to broadcast table.
i know that now
it is question if i change singe table to broadcast table ,i need to maintenance all of broadcase table on all sharding database
it is so sad
is there other way to resolve it ？
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[GitHub] [shardingsphere] tuichenchuxin commented on issue #25251: single table can not join with sharding table
Posted by "tuichenchuxin (via GitHub)" <gi...@apache.org>.
tuichenchuxin commented on issue #25251:
URL: https://github.com/apache/shardingsphere/issues/25251#issuecomment-1518925165
use experimental features federation
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