discourse/db/migrate/20180327062911_add_post_cus...

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# This is our current pattern for data migrations needed by plugins, we prefer to keep them in core
# so schema is tightly controlled, especially if we are amending tables owned by core
#
# this index makes looking up posts requiring review much faster (20ms on meta)
class AddPostCustomFieldsAkismetIndex < ActiveRecord::Migration[5.1]
def change
add_index :post_custom_fields, [:post_id],
name: 'idx_post_custom_fields_akismet',
where: "name = 'AKISMET_STATE' AND value = 'needs_review'"
end
end