One WP_Query that always shows 1 post from category X and 1 post from “not in category X”?
Queries (both WP_Queries and raw SQL queries) are meant to select objects matching given criteria. “One post from category and one not from category” is not a description of set of posts – it’s description of two posts coming from different sets. This means you won’t be able to select these two posts using only … Read more