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                        POSTGRESQL BUG REPORT TEMPLATE
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Your name		:	Jose' Soares
Your email address	:	Jose@SferaCarta.com


System Configuration
---------------------
  Architecture (example: Intel Pentium)  	: Intel Pentium

  Operating System (example: Linux 2.0.26 ELF) 	: Linux 2.0.37 Elf

  PostgreSQL version (example: PostgreSQL-6.1)  : PostgreSQL-v7.0

  Compiler used (example:  gcc 2.7.2)		: gcc 2.7.2.3


Please enter a FULL description of your problem:
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Seems that I found a bug on HAVING clause


Please describe a way to repeat the problem.   Please try to provide a
concise reproducible example, if at all possible:
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I created a table like this one below:

CREATE TABLE comuni (
	istat			CHAR(06) PRIMARY KEY NOT NULL,
	nome 			CHAR(50) NOT NULL,
	provincia		CHAR(02),
	codice_fiscale		CHAR(04),
	cap 			CHAR(05),
	regione			CHAR(03),
	distretto		CHAR(04)
	);
CREATE INDEX nome_comune_idx ON comuni (nome);

I tried the following query :

select * from comuni where nome in (
     select nome from comuni group by nome having 1 < count(nome)
     );

on the above table populated with 8342 rows, PostgreSQL begins searching
and I wait for hours without any result.


If you know how this problem might be fixed, list the solution below:
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I don't know, but I can send you my table data if you want it.