db aggregation
public sql v1 · immutabletbl1:id date-- --1 2012-02-011 2012-02-011 2012-02-011 2012-02-02tbl2:id date-- --1 2012-02-021 2012-02-021 2012-02-021 2012-02-031 2012-02-031 2012-02-031 2012-02-03result:count_tbl1 count_tbl2 date-- -- --3 0 2012-02-011 3 2012-02-020 4 2012-02-03