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cutalion/relation.rb

Last active February 11, 2022 14:40
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rom-sql's "Relation#exist?" using EXISTS
Raw
relation.rb
# override original exist? so that it does not use COUNT()
def exist?(*args, &block)
sql = where(*args, &block).dataset.unordered.select(1).exists
db.select(sql.as(:exists)).first[:exists]
end
alias any? exist?
private
def db
dataset.db
end
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