Sha256: 0a829d3212039096c084a1a21ad068ebfba0ef26937e1aec992fd89857585606
Contents?: true
Size: 759 Bytes
Versions: 62
Compression:
Stored size: 759 Bytes
Contents
module Bmg
module Sql
class Processor
module JoinSupport
def on_main_exp(sexpr)
joined = apply_join_strategy(sexpr.select_exp, right.select_exp)
merge_with_exps(sexpr, right, joined)
end
alias :on_with_exp :on_main_exp
alias :on_select_exp :on_main_exp
private
def join_predicate(left, right, commons)
left_d, right_d = left.desaliaser(true), right.desaliaser(true)
commons.to_a.inject(tautology){|cond, attr|
left_attr, right_attr = left_d[attr], right_d[attr]
cond &= Predicate::Factory.eq(left_attr, right_attr)
}
end
end # class JoinSupport
end # class Processor
end # module Sql
end # module Bmg
Version data entries
62 entries across 62 versions & 1 rubygems