2 removing an obsolete commodity:
4 select * from (select * from sell union select * from buy) left outer join commods using (commodid) where commods.commodname = 'Black dye' limit 10;
6 if that produces no output then:
9 delete from commods where commodname like 'Black dye';
10 select * from (select * from sell union select * from buy) left outer join commods using (commodid) where commods.commodname is null limit 10;
12 and if that produces no output then:
17 =======================================
20 alpha,byrne,papaya,turtle,jorvik,luthien
22 example mixed arbitrage/trade
25 ========================================
27 To remedy bug fixed in 01c14767c024ac56686dbbfcd88d9f3a0b4b1574,
31 sqlite> insert or ignore into stalls select null, buy.islandid, stalls.stallname from buy, stalls using (stallid);
32 sqlite> insert or ignore into stalls select null, sell.islandid, stalls.stallname from sell, stalls using (stallid);
33 sqlite> update buy set stallid = (select stallid from stalls where stalls.islandid == buy.islandid and stalls.stallname == (select stallname from stalls as bad where buy.stallid == bad.stallid));
34 sqlite> update sell set stallid = (select stallid from stalls where stalls.islandid == sell.islandid and stalls.stallname == (select stallname from stalls as bad where sell.stallid == bad.stallid));
37 And to check that it worked:
39 sqlite> select * from buy offers, stalls using (stallid) where offers.islandid != stalls.islandid group by offers.islandid;
40 sqlite> select * from sell offers, stalls using (stallid) where offers.islandid != stalls.islandid group by offers.islandid;