search

marsupialtail / quokka

Making data lake work for time series
https://marsupialtail.github.io/quokka/
Apache License 2.0
1.14k stars 60 forks source link

handle multi-target outputs #42

Closed marsupialtail closed 1 year ago

marsupialtail commented 1 year ago

handle situations where a table is used in two places in a pipelined plan. Not common in normal SQL, but note:

d1 = customer.join(nation, left_on = "c_nationkey", right_on = "n_nationkey") d1 = d1.join(orders, left_on = "c_custkey", right_on = "o_custkey", suffix = "_3") d2 = supplier.join(nation, left_on="s_nationkey", right_on = "n_nationkey") d2 = lineitem.join(d2, left_on = "l_suppkey", right_on = "s_suppkey", suffix = "_3")

d = d1.join(d2, left_on = "o_orderkey", right_on = "l_orderkey",suffix="_4")

marsupialtail commented 1 year ago

deferred to until someone complains