Re: Weird double single quote issue - Mailing list pgsql-general

>>>> Now, the weirdest thing is that for some db users everything works
>>>> as it should, but for others the returned string is with TWO single
>>>> quotes!
>>>>
>>>> select 'string to be stored with '' quotemark'::text as
>>>> returned_string
>>>>
>>>> returns
>>>>
>>>> string to be stored with '' quotemark
>>>>
>>>>
>>>> I cannot replicate the same behavior from SQL Editor, or psql
>>>> commandline. It only happens inside my proc (which is rather
>>>> monstrous).
>>>
>>> 1. Have you done ALTER ROLE ... SET ... on any users?
>>> 2. Are the locales/encodings different for the users?
>>> 3. Can you isolate the problem part of the procedure?
>>>
>>> I'm guessing you'll have to do #3 since you can't reproduce it with
>>> psql. If I were you, I'd suspect the proc rather than the DB in this
>>> case.
>>>
>>
>>
>> 1. No
>> 2. No. In fact I can replicate the problem on the same computer using
>> PgAdmin (connecting as two different users)
>> 3. I can isolate the part but it does not help much. I'm even doing
>> RAISE NOTICE and printing out the actual SQL statement that is being
>> executed... and it's IDENTICAL for both users yet returns different
>> values. Executing exactly the same SQL statement from commandline
>> produces identical results for both users.
>> 4. I'm totally baffled... :-/
> [snip]
>>   sSQL := $$select '$$ || sFieldNameOrig || $$'::varchar as
>> field_name, $$ ||
>>    coalesce(conf_field_capt[i],'')::text || $$::text as
>> field_caption, $$ ||
>>    $$''::varchar as field_index, $$ ||
>>    sFieldName::varchar || $$ as field_value, $$ ||
>>    $$'$$ || sListSource::text || $$'::text as field_listsource, '$$
>> || coalesce(conf_field_type[i],'') || $$'::int as field_type, $$ ||
>>    $$'$$ || sFieldAttr || $$'::text as field_attr $$ ||
>>    $$ from "$$ || conf_table_name || $$" $$ || sWhere;
>>
>>   raise notice 'executing %',sSQL;
>
> I assume you're doubling the quotes in these variables earlier in the
> function. I'd tidy this up via quote_literal:
>   sSQL := 'select ' || quote_literal(sFieldNameOrig) || '::varchar as
> field_name...'
>
> There's a quote_ident() function too - details in the "string
> functions" section of the manuals.

Allright, the quote_literal() function helped to a certain extent. One
field is now always properly formatted, and one other sometimes is
quoted... and sometimes is not.

It still feels like internal PG issue to me... we'll try upgrading to
latest revision and see what happens...

thanks for the help!

Peter