QUERY PLAN
Sort (cost=205.35..205.47 rows=49 width=266)
Sort Key: tbl_users.pinyin1 NULLS FIRST, tbl_users.namecut1 NULLS FIRST, tbl_users.pinyin2 NULLS FIRST, tbl_users.namecut2 NULLS FIRST, tbl_users.pinyin3 NULLS FIRST, tbl_users.namecut3 NULLS FIRST, tbl_users.pinyin4 NULLS FIRST, tbl_users.namecut4 NULLS FIRST
-> Hash Join (cost=187.14..203.97 rows=49 width=266)
Hash Cond: (tbl_users.id = tbl_projects.creator)
-> Seq Scan on tbl_users (cost=0.00..16.44 rows=144 width=266)
-> Hash (cost=186.53..186.53 rows=49 width=4)
-> HashAggregate (cost=185.55..186.04 rows=49 width=4)
Group Key: tbl_projects.creator
-> Seq Scan on tbl_projects (cost=0.00..177.64 rows=3164 width=4)