string fields helps

Folks

I need to save data on rtf format but , postgres
refuses to storage for backslah or character's
problem's any idea or vice are welcomed best
regards
mdc

pd: sample off data to save ( from postgres log)

"
UPDATE plbrecord SET documentation =
'{\rtf1\ansi\deff0{\fonttbl{\f0\fnil Tahoma;}}
\viewkind4\uc1\pard\lang1033\f0\fs16
\par }
', version_ = 4 WHERE (plbrecord.id_ = 8 AND
plbrecord.version_ = 3 AND plbrecord.inst_class_ =
'EntityDataWindow')
LOG: statement: COMMIT1
LOG: statement: BEGIN
LOG: statement: UPDATE plbrecord SET documentation =
'{\rtf1\ansi\deff0{\fonttbl{\f0\fnil Tahoma;}}
\viewkind4\uc1\pard\lang1033\f0\fs16 SELECT
"PARAMETROS"."PARAMETRO",
\par
substr(to_char("PARAMETROS"."F_VAL_PARAM",
''YYYY/MM/DD''), 1,10),
\par
substr(to_char("PARAMETROS"."F_ANUL_PARAM",''YYYY/MM/DD''),
1,10),
\par "PARAMETROS"."VALOR1",
\par "PARAMETROS"."VALOR2"
\par FROM "PARAMETROS"
\par " )
\par
\par }
', version_ = 5 WHERE (plbrecord.id_ = 8 AND
plbrecord.version_ = 4 AND plbrecord.inst_class_ =
'EntityDataWindow')
LOG: statement: COMMIT
LOG: statement: BEGIN
LOG: statement: UPDATE plbrecord SET documentation =
'{\rtf1\ansi\deff0{\fonttbl{\f0\fnil\fcharset0
Tahoma;}{\f1\fnil Tahoma;}}
\viewkind4\uc1\pard\lang1033\f0\fs18 SELECT
"PARAMETROS"."PARAMETRO",
\par
substr(to_char("PARAMETROS"."F_VAL_PARAM",
''YYYY/MM/DD''), 1,10),
\par
substr(to_char("PARAMETROS"."F_ANUL_PARAM",''YYYY/MM/DD''),
1,10),
\par "PARAMETROS"."VALOR1",
\par "PARAMETROS"."VALOR2"
\par FROM "PARAMETROS"
\par " )
\par \f1\fs16
\par }
"

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