frafor on "Polylang, ACF and direct db query"

Hi to all,

I'm using Polylang (latest ver) together with Advanced Custom Fields plugin, with the Repeater Field addon.

I neet to retrieve the posts matching a specific sub-field value.

I cannot query posts via WP_query or get_posts because of the Repeater Field structure and so I'm querying the db to get the posts as this tutorial suggests (my situation it's the same):

http://www.advancedcustomfields.com/resources/tutorials/querying-the-database-for-repeater-sub-field-values/

Everything works as expected, except the fact that, obviously, querying the db means that the query retrieves posts regardless their language.

How can i modify the db query to target even the post language?

I've looked in the db to see if there's a key storing the language value in wp_postmeta table, but i couldn't find it.

Thanks!

https://wordpress.org/plugins/polylang/