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Re: Some rare questions

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The answers to these are either "unlimited" or mentioned in the FAQ.

---------------------------------------------------------------------------

Havasvölgyi Ottó wrote:
> Hi,
> 
> I am writing a driver for PostgreSQL, and I need some rare info:
> 
> 
> How can I query the collation/locale of the database cluster?
> 
> What can be the maximal length of the indexed part of the string. So I have 
> a text field, and I create an index on it. How long can be one index key max 
> in this case?
> 
> How deep can be the subquery nesting?
> 
> How long can be the index key?
> 
> What is maximal number of compare operations for a single query?
> 
> What is maximal length of a query text (characters) ?
> 
> What is maximal length of a row (bytes) ?
> 
> What is the maximal length of char/varchar/text ?
> 
> What operations cannot be rolled back with Rollback ?
> 
> Thanks in advance,
> Otto
> 
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 6: explain analyze is your friend
> 

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