BUG #4764: error -7 in like translate

The following bug has been logged online:

Bug reference: 4764
Logged by: Paulo Marques
Email address: paulo(dot)dados(at)gmail(dot)com
PostgreSQL version: 8.3
Operating system: win server 2003
Description: error -7 in like translate
Details:

Select the following operating normally in previous versions and the Oracle,
but in version 8.3 always returns with error -7.
The error occurs just like in the upper (translate...
tanks

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

EXEC SQL
DECLARE CSR-CALENDARIO CURSOR FOR SELECT

"A"."ACA_CdCalend"
,"A"."ALE_CdLetivo"
,"A"."ACA_NmCalend"
,"A"."ACA_DataInicio"
,"A"."ACA_DataFim"
,"B"."EMP_CdEmpresa"
,"B"."ALE_CdLetivo"
,"B"."ALE_Ano"
,"B"."ALE_Periodo"
,"B"."ALE_NmLetivo"
,"B"."ALE_DataInicio"
,"B"."ALE_DataFinal"

FROM "aCALENDARIO" "A"
,"aLETIVO" "B"

WHERE ( "B"."EMP_CdEmpresa" = :aLETIVO-EMP-CdEmpresa )
AND ( "A"."ALE_CdLetivo" = "B"."ALE_CdLetivo" )
AND (

(
(UPPER(translate(btrim("A"."ACA_CdCalend"),

'ÁÀÂÃÄÉÈÊËÍÌÎÏÓÒÕÔÖÚÙÛÜÇKZYW',
'AAAAAEEEEIIIIOOOOOUUUUCCSIV')))
LIKE
(UPPER(translate(btrim(:DB-LIKE),

'ÁÀÂÃÄÉÈÊËÍÌÎÏÓÒÕÔÖÚÙÛÜÇKZYW',
'AAAAAEEEEIIIIOOOOOUUUUCCSIV')))
)

OR
(
(UPPER(translate(btrim("A"."ACA_NmCalend"),

'ÁÀÂÃÄÉÈÊËÍÌÎÏÓÒÕÔÖÚÙÛÜÇKZYW',
'AAAAAEEEEIIIIOOOOOUUUUCCSIV')))
LIKE
(UPPER(translate(btrim(:DB-LIKE),

'ÁÀÂÃÄÉÈÊËÍÌÎÏÓÒÕÔÖÚÙÛÜÇKZYW',
'AAAAAEEEEIIIIOOOOOUUUUCCSIV')))
)

OR
(
to_char("A"."ACA_DataInicio",'DD/MM/YYYY')
LIKE
btrim(:DB-LIKE)
)

)

ORDER BY "B"."ALE_Ano"
,"B"."ALE_Periodo"
,"A"."ACA_DataInicio"

LIMIT :w-Limit