maria-discuss team mailing list archive

[Justin Swanhart <greenlion@xxxxxxxxx>]

Hi,

If it it read only, why don't you just import it with load data infile
periodically, such as every 30 seconds?  Load into new table then swap,
just like you would a materialized view.  LOAD DATA INFILE handles fixed
width files if you do:
LOAD DATA INFILE ... FIELDS DELIMITED BY '';

If the fixed with LOAD DATA INFILE won't work, then just load the file with
a delimiter that does not exist in the file, so that all lines are treated
as a single value.  Use the LOAD DATA ... SET syntax combined with SUBSTR()
to extract the columns.  It isn't too difficult to make it work, but it
might require a little trial and error.

Here is a very old blog post with a trick to get "top" like output in the
database without having to run the "top" tool.  It uses the LOAD DATA ...
SET technique, so it will give you something to go on:
http://swanhart.livejournal.com/131541.html and
http://swanhart.livejournal.com/131788.html

Regards,

--Justin



On Sat, Jun 13, 2015 at 4:05 PM, Roberto Spadim <roberto@xxxxxxxxxxxxx>
wrote:

> I was trying the HEADER=1 but don`t work, check what i`m trying to do:
>
> create table teste(
> ticker char(68) not null,
> ts timestamp not null field_format='II',   (this should be a time64_t
> value)
> bid double not null,
> ask double not null,
> last double not null,
> volume bigint not null,
> unknown char(2) not null
> )
> engine=CONNECT
> readonly=1
> header=1
> table_type=bin
> offset=432    (this don`t exists)
> option_list='eof=1'
> lrecl =110      (record size)
> FILE_NAME='/home/mysql/data/ticks.dat'
>
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