Thread: Re: Different behavior between v15 and v17 using WITH CTE

I am running this query on v17 and generating the results, but not on v15.

In v15:

[Code: 0, SQL State: 42601]  ERROR: subquery in FROM must have an alias

  Hint: For example, FROM (SELECT ...) [AS] foo.

  Position: 39  [Script position: 38 - 45]

WITH _tv_datapoints
AS
( SELECT * from(SELECT distinct p.order_book, 
                (Cast(p.execution_price AS double precision) / 10000) AS "trade_price",
                      p.msg_date as trade_time ,
                      row_number() OVER (PARTITION BY p.execution_price ORDER BY p.msg_date) rn
                FROM PUBLIC.prod_itchbbo_p_small_message p
                WHERE p.order_book = 5082
                  AND Date(p.added_date) = '20250507'
                  AND p.printable = 'Y' 
                  ORDER BY p.msg_date asc ) AS TRADES_P
) 

select tv.order_book, tv.trade_price, tv.trade_time,
stats.volume, stats.high_price, stats.low_price, stats.open_price from _tv_datapoints tv ,
LATERAL iq_get_stats_security_v1_4_4(tv.order_book,( 
    (   SELECT 
            DATE(d.added_date) AS DATE
        FROM 
            prod_itchbbo_s_message d
        WHERE event_code = 'S'
        ORDER BY 
            d.added_date DESC
        LIMIT 
            1))::TIMESTAMP without TIME zone) 
            stats(value,
            volume,
            avg_price,
            high_price,
            low_price,
            stock_date,
            bestbidprice,
            bestbidsize,
            bestofferprice,
            bestoffersize,
            last_trade_price,
            close_price, 
            open_price,
            prev_close_price
            )
WHERE rn = 1
;