QUERY PLAN
Sort (cost=204.07..204.19 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=185.87..202.70 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=185.26..185.26 rows=49 width=4)
-> HashAggregate (cost=184.28..184.77 rows=49 width=4)
Group Key: tbl_projects.creator
-> Seq Scan on tbl_projects (cost=0.00..176.42 rows=3142 width=4)