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

[Alexander Farber <alexander.farber@xxxxxxxxx>]

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