oqgraph-dev team mailing list archive

[Antony T Curtis <atcurtis@xxxxxxxxx>]

Ahh yeah. if you change the type, you must fix the index key decode.

Antony T Curtis
On Mar 4, 2013 1:04 PM, "Arjen Lentz" <arjen@xxxxxxxxxxxxx> wrote:
>
> I think we need Antony for this. Antony?
>
> Andrew McDonnell <bugs@xxxxxxxxxxxxxxxxxxx> wrote:
>
> >Hi Arjen, Antony
> >
> >I have pushed my work so far to
> >
> >http://bazaar.launchpad.net/~andymc73/maria/10.0-oqgraph3-varchar
> >
> >I thought things were flying along according to plan... then I hit how to
> >interpret the keys (O_o) which from a mysql internals is a bit beyond my
> >understanding still.
> >
> >
> >To date, I have:
> >
> >* changed the latch to VARCHAR
> >* retained backwards compatbility (with an #ifdef) allowing latch
SHORTINT to
> >still be created, but reporting a deprecation warning
> >* added warnings to create() and a better message than 'table crashed'
if the
> >OQGRAPH table created incorrectly.  So the user can go show warnings and
see
> >which column they mucked up.
> >* implemented string -> int latch parsing in search(), which should
work, but
> >I havent been able to test it as yet, because
> >
> >when doing
> >
> >SELECT * FROM graph2 WHERE latch = 'breadth_first' AND origid = 1 AND
weight = 1;
> >
> >aka the first select in basic.test, I get an assertion on key
store_length
> >inside ha_oqgraph::records_in_range(); at this point I realised I am a
little
> >stuck, and need some explaining as to how the keys are supposed to work
in
> >this case...
> >
> >FWIW the existing basic.test still works with the backward compat #ifdef
> >turned on.  (Except I cant flush at the end, and I get a server memory
leak
> >assertion thereafter.  But I doubt that is related to my changes so far)
> >
> >
> >
> >--Andrew
> >
> >--
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