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Enable statement usage tracking on hywiki
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As agreed in T188730#7461581 and T188730#7525888, we want to remove the wmgWikibaseDisabledUsageAspects setting for Armenian Wikipedia. This is expected to increase the number of rows in the wbc_entity_usage to no more than 65 million, most likely much less (currently 6.4 million). We should keep track of the size of the table after making the change, as well as the size of the recentchanges table and the ratio of Wikidata edits there, and check on-wiki Lua modules for obvious mistakes if it grows too large.

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lucaswerkmeister-wmde@stat1007:~$ sudo -u analytics-wmde analytics-mysql hywiki <<< 'SELECT table_name, table_rows FROM information_schema.tables WHERE table_schema = "hywiki" AND table_name IN ("wbc_entity_usage", "recentchanges");' | expand -t20
table_name          table_rows
recentchanges       242694
wbc_entity_usage    4967541