Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.0.3
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None
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Ubuntu/Presice/LXContainer
Description
ConnectSE ships with special columns. I.e. tabid and servid.
Given:
CREATE TABLE `federatedconnect` ( |
`id` int(11) NOT NULL, |
`id2` int(11) DEFAULT NULL |
) ENGINE=CONNECT DEFAULT CHARSET=latin1 `TABLE_TYPE`='mysql' `TABNAME`='aha' `DBNAME`='test' `OPTION_LIST`='user=me,host=10.0.3.191' |
We build a table_type=tbl table with the special column tabid
CREATE TABLE `federatedconnect_s` ( |
`server` char(20) NOT NULL DEFAULT 'nix' `special`=tabid, |
`id` int(11) NOT NULL, |
`id2` int(11) DEFAULT NULL |
) ENGINE=CONNECT DEFAULT CHARSET=latin1 `TABLE_TYPE`='tbl' `table_list`='federatedconnect' |
MariaDB [test]> select * from federatedconnect_s limit 1; |
+------------------+----+------+ |
| server | id | id2 |
|
+------------------+----+------+ |
| federatedconnect | 5 | NULL | |
+------------------+----+------+ |
1 row in set (0.00 sec) |
Ok that works as expected. Now use the special column servid.
CREATE TABLE `federatedconnect_s` ( |
`server` char(20) NOT NULL DEFAULT 'nix' `special`=servid, |
`id` int(11) NOT NULL, |
`id2` int(11) DEFAULT NULL |
) ENGINE=CONNECT DEFAULT CHARSET=latin1 `TABLE_TYPE`='tbl' `table_list`='federatedconnect' |
MariaDB [test]> select * from federatedconnect_s limit 1; |
ERROR 1296 (HY000): Got error 174 'Column *SERVID not found in federatedconnect_s' from CONNECT |
So servid is not there to be used.
Regards
Erkan
Attachments
Activity
Sure enough. The documentation is optimistic as SERVID is not yet fully implemented.
It will be, I am working on it.
SERVID is now implemented. For most table types it returns "Current". For ODBC tables it returns "ODBC".
It is mainly useful for MYSQL tables. If they are created using a federated server, it returns the federated server name. Otherwise, it returns the host name of the used server.
Note that for PROXY and PROXY based table, it returns the SERVID of the source table(s).
SERVID is documented here: https://kb.askmonty.org/en/using-connect-virtual-and-special-columns/ , and also mentioned here: https://kb.askmonty.org/en/connect-table-types-using-the-tbl-and-mysql-types-together/
If it's not supported, it should be removed from documentation.