Hi. The behaviour of auto_increment is strange or it's a bug. All is, what are you described above. delete from t1; this command deletes all records and auto_increment will be 1, but if i use mysql-max (3.23.43 with innoDB - all in my.ini is set to handle innoDB) delete from t1; leaves auto_increment statement in older position (don't set it to 1), even t1 is myisam table. I must disable innoDB feature, then auto_increment field works ok after delete from t1; the auto_increment field is 1.
it's o.k or it's a bug in mysql-max with innoDB ?? regards I. Piasecki. ----- Original Message ----- From: "Paul DuBois" <[EMAIL PROTECTED]> To: "Ireneusz Piasecki" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Thursday, November 01, 2001 12:42 AM Subject: Re: Auto_increment > At 2:03 PM +0100 10/31/01, Ireneusz Piasecki wrote: > >HI everybody. > > > >I saw, when i delete all records from the table where id > >is primary key and auto_increment, the first number for id is'nt 1 but next > >in a row (the last was 5 the next will be 6). > > > >Can i change this behavior ? Mybe in file my.ini ? > >The goal is, that when i delete all records from the table the id field > >begin with 1, when i insert a record. > > > >I use 3.23.43-max on win98, the table is myisam type. > > > >regards. I. Piasecki. > > What you observe is what will happen if you delete records using > DELETE statements that have a WHERE clause. > > If you empty the entire table at once like this: > > DELETE FROM tbl_name > > then the AUTO_INCREMENT value will reset to 1. > > This is true for MyISAM tables, not necessarily for other table types. > --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
