Re: [HACKERS] Interesting behaviour !

Constantin Teodorescu wrote:
> 
> 
> create table "note" (id serial,perioada int2,schema int2,explicatie
> text,...);
> 
...
> 
> contabil=> explain select * from note where perioada=15;
> NOTICE:  QUERY PLAN:
> Seq Scan on note  (cost=1099.99 rows=1600 width=87)

You may try :

explain select * from note where perioada=15::int2;

i think that the default for 'untyped' numbers is int4 and 
this currently confuses the optimiser.

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Hannu