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mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-07-30 19:23:07 +03:00

MCOL-1101 Move client UDFs into a separate file.

Remove rmParms from ha_calpont_impl.cpp
This commit is contained in:
Roman Nozdrin
2019-01-01 12:33:47 +03:00
parent ca0240037a
commit d22183e195
7 changed files with 882 additions and 945 deletions

View File

@ -16,97 +16,6 @@
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA. */
// $Id: ha_calpont.cpp 9642 2013-06-24 14:57:42Z rdempsey $
/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/**
@file ha_example.cc
@brief
The ha_example engine is a stubbed storage engine for example purposes only;
it does nothing at this point. Its purpose is to provide a source
code illustration of how to begin writing new storage engines; see also
/storage/example/ha_example.h.
@details
ha_example will let you create/open/delete tables, but
nothing further (for example, indexes are not supported nor can data
be stored in the table). Use this example as a template for
implementing the same functionality in your own storage engine. You
can enable the example storage engine in your build by doing the
following during your build process:<br> ./configure
--with-example-storage-engine
Once this is done, MySQL will let you create tables with:<br>
CREATE TABLE <table name> (...) ENGINE=EXAMPLE;
The example storage engine is set up to use table locks. It
implements an example "SHARE" that is inserted into a hash by table
name. You can use this to store information of state that any
example handler object will be able to see when it is using that
table.
Please read the object definition in ha_example.h before reading the rest
of this file.
@note
When you create an EXAMPLE table, the MySQL Server creates a table .frm
(format) file in the database directory, using the table name as the file
name as is customary with MySQL. No other files are created. To get an idea
of what occurs, here is an example select that would do a scan of an entire
table:
@code
ha_example::store_lock
ha_example::external_lock
ha_example::info
ha_example::rnd_init
ha_example::extra
ENUM HA_EXTRA_CACHE Cache record in HA_rrnd()
ha_example::rnd_next
ha_example::rnd_next
ha_example::rnd_next
ha_example::rnd_next
ha_example::rnd_next
ha_example::rnd_next
ha_example::rnd_next
ha_example::rnd_next
ha_example::rnd_next
ha_example::extra
ENUM HA_EXTRA_NO_CACHE End caching of records (def)
ha_example::external_lock
ha_example::extra
ENUM HA_EXTRA_RESET Reset database to after open
@endcode
Here you see that the example storage engine has 9 rows called before
rnd_next signals that it has reached the end of its data. Also note that
the table in question was already opened; had it not been open, a call to
ha_example::open() would also have been necessary. Calls to
ha_example::extra() are hints as to what will be occuring to the request.
A Longer Example can be found called the "Skeleton Engine" which can be
found on TangentOrg. It has both an engine and a full build environment
for building a pluggable storage engine.
Happy coding!<br>
-Brian
*/
#include "ha_calpont.h"
#include "columnstoreversion.h"