problems with timestamp data type

Hi.

I have been using PostgreSQL v 7.1.3 without
problems for a year.
I installed the latest version (7.2.1) a week ago and
I have had some problems with a particular query:

///***** QUERY *****///

SELECT date_part('year', fechaacta) AS "Ao de
donacin", sexo AS "Sexo", count(*) AS "Cantidad de
donantes"
FROM "Capital"
WHERE
date_part('year', age(timestamp(fechanacimiento)))
BETWEEN 1 AND 100
AND "fecha" BETWEEN '2001/01/01' AND '2002/12/31'
GROUP BY date_part('year', fechaacta), sexo

///***** end QUERY ***////

I obtain the following answer from server:

"Warning: PostgreSQL query failed: ERROR: parser:
parse error at or near "fechanacimiento" in
/var/www/html/ActasPcias/consultas.php on line 471"

Note: "fechanacimiento" is a field of the table
"Capital".

Exactly the same query has been working fine for a
year with PostgreSQL v 7.1.3 in exactly the same
database. more over, the database was created in my
new red hat 7.3 server by using "pg_dumpall" from my
old server (red hat 7.2).

Can anybody tell me what's going on ?

Thanks

Juan Pablo

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