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optimizing an update
Posted by: Paul Coene
Date: March 03, 2019 10:02AM

I need to optimize this statement. It takes 4 minutes. The items table is large (10000+) but those matching the where statement is less than 10.

This takes 4 minutes.

update items i
inner join client_server_faction_map m on i.factionmod4 = m.serverid
set i.factionmod4 = m.clientid
where i.factionmod4 > 0;

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