Re: [GENERAL] Understanding "unknown" data type

2011-04-07 Thread Tom Lane
Steve Crawford writes: > On 04/07/2011 11:29 AM, Tom Lane wrote: >> Steve Crawford writes: >>> 1. Where can I read up on the purpose and properties of a data-type of >>> unknown? >> It's the type initially imputed to unadorned string literals and NULL... > Is there a place in the documentation

Re: [GENERAL] Understanding "unknown" data type

2011-04-07 Thread Steve Crawford
Thanks Tom. On 04/07/2011 11:29 AM, Tom Lane wrote: Steve Crawford writes: 1. Where can I read up on the purpose and properties of a data-type of unknown? It's the type initially imputed to unadorned string literals and NULL... Is there a place in the documentation that explains this? I haven

Re: [GENERAL] Understanding "unknown" data type

2011-04-07 Thread Tom Lane
Steve Crawford writes: > 1. Where can I read up on the purpose and properties of a data-type of > unknown? It's the type initially imputed to unadorned string literals and NULL constants. The parser normally converts these to constants of some other type, as soon as it can figure out what type