Have you tried "SELECT MAX(`timestamp`) FROM minutely_inbound_handovers;"?

-JF

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Friday, July 26, 2002 6:48 AM
> To: [EMAIL PROTECTED]
> Subject: max() null bug with funny column name
>
>
> >Description:
>
> You expect a little goophiness when you set up a column named timestamp.
> This odd behaviour I consider a bug.
>
> >How-To-Repeat:
>
> show fields from minutely_inbound_handovers;
> +-------------------------+----------------------+------+-----+---
> ------------------+----------------+
> | Field                   | Type                 | Null | Key |
> Default             | Extra          |
> +-------------------------+----------------------+------+-----+---
> ------------------+----------------+
> | id                      | bigint(20) unsigned  |      | PRI |
> NULL                | auto_increment |
> | cell                    | smallint(5) unsigned |      |     | 0
>                   |                |
> | timestamp               | datetime             |      | MUL |
> 0000-00-00 00:00:00 |                |
> | attempted               | smallint(5) unsigned |      |     | 0
>                   |                |
> +-------------------------+----------------------+------+-----+---
> ------------------+----------------+
> 15 rows in set (0.00 sec)
>
> select max(timestamp) from minutely_inbound_handovers;
> +----------------+
> | max(timestamp) |
> +----------------+
> | NULL           |
> +----------------+
> 1 row in set (0.00 sec)
>
> select timestamp from minutely_inbound_handovers where timestamp is null;
> Empty set (2.74 sec)
>
> select max(timestamp) from minutely_inbound_handovers where
> timestamp is not null;
> +---------------------+
> | max(timestamp)      |
> +---------------------+
> | 2002-07-25 14:00:00 |
> +---------------------+
> 1 row in set (3.73 sec)
>
> >Fix:
>
>
> >Submitter-Id:        ??
> >Originator:  Jettero Heller
> >Organization:
> >MySQL support: none
> >Synopsis:    max() null bug with funny column name
> >Severity:    non-critical
> >Priority:    low
> >Category:    mysql
> >Class:               sw-bug
> >Release:     mysql-4.0.1-alpha (Official MySQL RPM)
> >Server: /usr/bin/mysqladmin  Ver 8.23 Distrib 4.0.1-alpha, for
> pc-linux-gnu on i686
> Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
> This software comes with ABSOLUTELY NO WARRANTY. This is free software,
> and you are welcome to modify and redistribute it under the GPL license
>
> Server version                4.0.1-alpha
> Protocol version      10
> Connection            Localhost via UNIX socket
> UNIX socket           /var/lib/mysql/mysql.sock
> Uptime:                       55 min 52 sec
>
> Threads: 1  Questions: 604  Slow queries: 10  Opens: 23  Flush
> tables: 1  Open tables: 11  Queries per second avg: 0.180
> >Environment:
>
> System: Linux mercury.msgexp.net 2.4.18 #1 Wed Jun 19 13:34:15
> EDT 2002 i686 unknown
> Architecture: i686
>
> Some paths:  /usr/bin/perl /usr/bin/make /usr/bin/gmake
> /usr/bin/gcc /usr/bin/cc
> GCC: Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs
> gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-98)
> Compilation info: CC='gcc'  CFLAGS='-O6 -fno-omit-frame-pointer
> -mpentium'  CXX='gcc'  CXXFLAGS='-O6 -fno-omit-frame-pointer
>       -felide-constructors -fno-exceptions -fno-rtti -mpentium'
> LDFLAGS=''
> LIBC:
> lrwxrwxrwx    1 root     root           13 Jun 19 11:14
> /lib/libc.so.6 -> libc-2.2.5.so
> -rwxr-xr-x    1 root     root      1343176 Apr 15 10:02 /lib/libc-2.2.5.so
> -rw-r--r--    1 root     root      2310808 Apr 15 10:02 /usr/lib/libc.a
> -rw-r--r--    1 root     root          178 Apr 15 09:55 /usr/lib/libc.so
> Configure command: ./configure  --disable-shared
> --with-mysqld-ldflags=-all-static
> --with-client-ldflags=-all-static --without-berkeley-db
> --with-innodb --enable-assembler --with-mysqld-user=mysql
> --with-unix-socket-path=/var/lib/mysql/mysql.sock --prefix=/
> --with-extra-charsets=complex --exec-prefix=/usr
> --libexecdir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share
> --localstatedir=/var/lib/mysql --infodir=/usr/info
> --includedir=/usr/include --mandir=/usr/man
> --with-embedded-server --enable-thread-safe-client
> '--with-comment=Official MySQL RPM'
>
>
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