I get the following WARNING after install... visible at front and backend...

The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay SQL=INSERT INTO gguik_sellacious_prices_cache (price_id, product_id, seller_uid, qty_min, qty_max, cost_price, margin, margin_type, list_price, calculated_price, ovr_price, is_fallback, sdate, edate, product_price, product_seller_id, price_display, listing_type, item_condition, flat_shipping, shipping_flat_fee, shipping_country, shipping_state, shipping_city, shipping_zip, whats_in_box, return_days, return_tnc, exchange_days, exchange_tnc, seller_name, seller_username, seller_email, seller_company, seller_code, seller_currency, seller_mobile, pcx_id, client_catid) SELECT pp.id AS price_id, pp.product_id, pp.seller_uid, pp.qty_min, pp.qty_max, pp.cost_price, pp.margin,pp.margin_type, pp.list_price, pp.calculated_price, pp.ovr_price, pp.is_fallback, pp.sdate, pp.edate,IF(ps.price_display = 0, pp.product_price, 0) AS product_price, ps.id AS product_seller_id,ps.price_display, ps.listing_type, ps.item_condition, ps.flat_shipping, ps.shipping_flat_fee,ps.shipping_country, ps.shipping_state, ps.shipping_city, ps.shipping_zip, ps.whats_in_box,ps.return_days, ps.return_tnc, ps.exchange_days, ps.exchange_tnc,u.name AS seller_name, u.username AS seller_username, u.email AS seller_email,s.title AS seller_company, s.code AS seller_code,sp.currency AS seller_currency, sp.mobile AS seller_mobile,pcx.id AS pcx_id, pcx.cat_id AS client_catid FROM `gguik_sellacious_product_prices` AS `pp` INNER JOIN `gguik_sellacious_product_sellers` AS `ps` ON ps.product_id = pp.product_id AND ps.seller_uid = pp.seller_uid INNER JOIN `gguik_users` AS `u` ON u.id = ps.seller_uid LEFT JOIN `gguik_sellacious_sellers` AS `s` ON s.user_id = pp.seller_uid LEFT JOIN `gguik_sellacious_profiles` AS `sp` ON sp.user_id = pp.seller_uid LEFT JOIN `gguik_sellacious_productprices_clientcategory_xref` AS `pcx` ON pcx.product_price_id = pp.id WHERE pp.state = 1 AND ps.state = 1 AND (pp.product_price > 0 OR ps.price_display > 0) AND u.block = 0 AND s.state = 1 AND (pp.id NOT IN ( SELECT DISTINCT price_id FROM gguik_sellacious_prices_cache) OR pcx.id NOT IN ( SELECT DISTINCT pcx_id FROM gguik_sellacious_prices_cache)) ORDER BY ps.price_display ASC, pp.product_price = 0 ASC, pp.product_price ASC, pp.is_fallback ASC