mysql5.7 query with multiple tables error [duplicate] - mysql-error-1054

Question

This question already has answers here:
ERROR 1054 (42S22): Unknown column '‍‍' in 'field list'
(2 answers)
Closed 3 years ago.
mysql> desc apn_licence;
+------------+------------------+------+-----+-------------------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+------------------+------+-----+-------------------+-------+
| vdomain | char(32) | NO | PRI | test | |
| vhost | char(32) | NO | PRI | | |
| licence | char(64) | NO | | | |
| tcpport | int(11) | NO | | 0 | |
| srvtype | tinyint(4) | NO | | 0 | |
| auxcmd | tinyint(3) | YES | | 0 | |
| agentuid | int(10) unsigned | NO | | 1 | |
| owneruid | int(10) unsigned | NO | | 1 | |
| sno | char(32) | YES | | 0 | |
| pno | char(32) | YES | | 0 | |
| updatedate | timestamp | NO | | CURRENT_TIMESTAMP | |
| builddate | timestamp | NO | | CURRENT_TIMESTAMP | |
+------------+------------------+------+-----+-------------------+-------+
12 rows in set (0.00 sec)
mysql> desc apn_agent;
+--------------+---------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+--------------+---------------------+------+-----+---------+----------------+
| uid | int(10) unsigned | NO | PRI | NULL | auto_increment |
| euid | int(10) unsigned | YES | | 0 | |
| username | char(16) | NO | UNI | | |
| password | char(16) | YES | | NULL | |
| priv_licence | tinyint(3) unsigned | NO | | 0 | |
| priv_admin | tinyint(3) unsigned | NO | | 0 | |
| priv_srv | tinyint(3) unsigned | NO | | 0 | |
| plant_asign | int(11) | YES | | 0 | |
+--------------+---------------------+------+-----+---------+----------------+
8 rows in set (0.00 sec)
mysql> desc apn_routine;
+------------+----------------------+------+-----+-------------------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+----------------------+------+-----+-------------------+-------+
| acxid | int(10) unsigned | NO | PRI | 0 | |
| sid | int(10) unsigned | NO | PRI | 0 | |
| wanipaddr | int(10) unsigned | YES | | 0 | |
| udpport | smallint(5) unsigned | NO | | 8400 | |
| serial | bigint(20) unsigned | YES | | 0 | |
| nserial | bigint(20) unsigned | YES | | 0 | |
| rivec | char(32) | YES | | NULL | |
| stat | smallint(5) unsigned | YES | | 4 | |
| vtype | smallint(5) unsigned | YES | | 0 | |
| gwtype | smallint(5) unsigned | YES | | 2 | |
| vactlevel | int(10) unsigned | YES | | 0 | |
| vnatlevel | int(10) unsigned | YES | | 0 | |
| vdomain | char(32) | NO | | | |
| vhost | char(32) | NO | | | |
| vsubkey | char(32) | YES | | public | |
| passwd | char(64) | YES | | NULL | |
| gwmac | char(18) | YES | MUL | 00:0D:B0:00:00:00 | |
| vsubnet | int(10) unsigned | YES | | 0 | |
| vsubmask | int(10) unsigned | YES | | 0 | |
| vgwip | int(10) unsigned | YES | | 0 | |
| vgwnexthop | int(10) unsigned | YES | | 0 | |
| groupstamp | timestamp | NO | | CURRENT_TIMESTAMP | |
| joinstamp | timestamp | NO | | CURRENT_TIMESTAMP | |
+------------+----------------------+------+-----+-------------------+-------+
23 rows in set (0.00 sec)
With mysql-3.23.58
select l.*, a.username from apn_licence as l, apn_agent as a
left join apn_routine as r on l.vdomain=r.vdomain and l.vhost=r.vhost
where
l.agentuid=a.uid
group by l.vdomain
order by l.tcpport DESC,l.vdomain,l.vhost;
is OK.
But with mysql-5.7.26,it get the error as:
ERROR 1054 (42S22): Unknown column 'l.vdomain' in 'on clause'

Answer 1

Looks like there are invisible garbage characters in your query.
Try retyping the query (don't copy and paste or you'll most likely include the garbage character) and most probably it should work.

Answer 2

Thanks all,I found the answer in
[MySQL unknown column in ON clause
The correct query is
select l.*, a.username from (apn_licence as l, apn_agent as a)
left join apn_routine as r on l.vdomain=r.vdomain and l.vhost=r.vhost
where
l.agentuid=a.uid
group by l.vdomain
order by l.tcpport DESC,l.vdomain,l.vhost;