other doubt https://github.com/MariaDB/server/blob/10.1/storage/oqgraph/ha_oqgraph.cc#L4... when using aria as backstorage, aria engine don't support insert delayed, this will make some problems not? about query cache i didn't found a register_query_cache_table function like aria/innodb/myisam engines, maybe we should change documentation to 'query cache isn't supported with oqgraph' instead of 'needs to be disabled' 2014-09-23 14:13 GMT-03:00 Roberto Spadim :

i'm thinking about how it work with backend data store for example... select somefiled from oq_graph where something.. oq_graph will send some queries to data table (i don't know if it use sql or internal handler) data table will return oq_graph will process and send back data to client, here it can/can't query cache

if data table change, oq_graph don't know and old query cache will become inconsistent, the point is, why not it need to be disabled? should be nice a explain about it, i don't know too how it works :/ any other idea?

2014-09-23 12:25 GMT-03:00 Oleksandr Byelkin :

Hi!

...

On 23.09.14 17:25, Roberto Spadim wrote:

...

Hi guys, i was reading docs, and found this:

* The query cache needs to be disabled in order to use OQGRAPH https://mariadb.com/kb/en/oqgraph/ and, in older versions, Galera https://mariadb.com/kb/en/galera/.

Why query cache needs to be disabled with OQGRAPH?

My guess is that because it can't cooperate with QC and behaviour to not match our 2 defaukt patterns (like myisam or transactional). If it fit in one of the patterns it could be switched on.

[skip]

-- Roberto Spadim SPAEmpresarial Eng. Automação e Controle

-- Roberto Spadim SPAEmpresarial Eng. Automação e Controle

well found this bug at mariadb jira https://mariadb.atlassian.net/browse/MDEV-5744 that's why query cache should be disabled, but check that it's a problem of oqgraph engine, that's a BUG! 2014-09-23 15:41 GMT-03:00 Peter Laursen :

INSERT DELAYED is on its way _out _in_the_dark anyway. I blogged this http://blog.webyog.com/2012/08/01/insert-delayed-is-gone/ 2 years ago. I am not able to really to recall full details from my brain-dead mind, but I think all references to INSERT DELAYED are now uninteresting.

-- Peter -- Webyog

On Tue, Sep 23, 2014 at 7:51 PM, Roberto Spadim wrote:

...

other doubt

https://github.com/MariaDB/server/blob/10.1/storage/oqgraph/ha_oqgraph.cc#L4... when using aria as backstorage, aria engine don't support insert delayed, this will make some problems not?

about query cache i didn't found a register_query_cache_table function like aria/innodb/myisam engines, maybe we should change documentation to 'query cache isn't supported with oqgraph' instead of 'needs to be disabled'

2014-09-23 14:13 GMT-03:00 Roberto Spadim :

...

i'm thinking about how it work with backend data store for example... select somefiled from oq_graph where something.. oq_graph will send some queries to data table (i don't know if it use sql or internal handler) data table will return oq_graph will process and send back data to client, here it can/can't query cache

if data table change, oq_graph don't know and old query cache will become inconsistent, the point is, why not it need to be disabled? should be nice a explain about it, i don't know too how it works :/ any other idea?

2014-09-23 12:25 GMT-03:00 Oleksandr Byelkin :

Hi!

...

On 23.09.14 17:25, Roberto Spadim wrote:

...

Hi guys, i was reading docs, and found this:

* The query cache needs to be disabled in order to use OQGRAPH https://mariadb.com/kb/en/oqgraph/ and, in older versions, Galera https://mariadb.com/kb/en/galera/.

Why query cache needs to be disabled with OQGRAPH?

My guess is that because it can't cooperate with QC and behaviour to not match our 2 defaukt patterns (like myisam or transactional). If it fit in one of the patterns it could be switched on.

[skip]

-- Roberto Spadim SPAEmpresarial Eng. Automação e Controle

-- Roberto Spadim SPAEmpresarial Eng. Automação e Controle

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-- Roberto Spadim SPAEmpresarial Eng. Automação e Controle