Request a Demo
Home   >   mailing lists

Re: BUG #18774: Not the required output of the query used in the function(delete_from_table1) in postgresql9.4 - Mailing list pgsql-bugs

From Greg Sabino Mullane
Subject Re: BUG #18774: Not the required output of the query used in the function(delete_from_table1) in postgresql9.4
Date
Msg-id CAKAnmmL9EP6BpVUfytjb32j_ZfO=tT63WOQy4dHSs8enaR=ziA@mail.gmail.com
Whole thread Raw
In response to Re: BUG #18774: Not the required output of the query used in the function(delete_from_table1) in postgresql9.4  (Rajni Bobal <rajnibobal@gmail.com>)
List pgsql-bugs
Tree view
On Wed, Jan 22, 2025 at 10:59 AM Rajni Bobal <rajnibobal@gmail.com> wrote:
SELECT delete_from_table1('commandlog','commandlog','cmdid','cmdtime < extract(epoch FROM (current_date  - 15))*1000',500);

(putting aside many other issues for now)

It would help to see the exact output you are getting. The query as written above cannot work with the functions you gave, which have the column name as the FOURTH parameter, and the where clause as the THIRD.


    EXECUTE 'DELETE from ' || quote_ident(tblname) ||
        ' where $1 in (select $1 from ' || quote_ident(sel_tblname) ||
        ' where ' || wherecon || ' limit $2 ) '
        USING colname, batchsize;

Use FORMAT instead:

  EXECUTE FORMAT(
    'DELETE from %I WHERE %I IN (SELECT %I FROM %I WHERE %s LIMIT %s)',
     tblname, colname, colname, sel_tblname, wherecon, batchsize
  );

Cheers,
Greg

--
Crunchy Data - https://www.crunchydata.com
Enterprise Postgres Software Products & Tech Support

pgsql-bugs by date:

Previous
From: Rajni Bobal
Date:
Subject: Re: BUG #18774: Not the required output of the query used in the function(delete_from_table1) in postgresql9.4
Next
From: "David G. Johnston"
Date:
Subject: Re: BUG #18774: Not the required output of the query used in the function(delete_from_table1) in postgresql9.4