Re: [GENERAL] RETURNS TABLE function: ERROR: column reference "word" is ambiguous

[Alexander Farber]

There is still 1 open question -

In my custom function:

CREATE OR REPLACE FUNCTION words_check_words(
        IN in_uid integer,
        IN in_gid integer,
        IN in_tiles jsonb)
        RETURNS TABLE(word varchar, score integer) AS
$func$


I iterate through tiles passed as last argument and store words built by
them at the game board into a temporary table:

        CREATE TEMPORARY TABLE _words (word varchar, score integer) ON
COMMIT DROP;

        FOR _tile IN SELECT * FROM JSONB_ARRAY_ELEMENTS(in_tiles)
        LOOP
              .....
                IF LENGTH(_word) > 1 /* AND EXISTS SELECT 1 FROM
words_nouns */ THEN
                        INSERT INTO _words(word, score)
                        VALUES (upper(_word), _score);
                END IF;
        END LOOP;


And at the end I perform SELECT from the temp table:

        RETURN QUERY
        SELECT w.word, max(w.score) as score
        FROM _words w
        GROUP BY w.word;
END
$func$ LANGUAGE plpgsql;


The question is: if it is possible to get rid of the temp table and instead
add records to the implicit table being returned?

Thank you
Alex