I have read that PostgreSQL can use multiple indexes in general, but in the specific case of a query that ranges across two indexes, will it use both? If so, will they be loaded sequentially or together?

For example, if this query spans across two partial indexes by column_1, how will partial indexes be used if at all, and how is the index data loaded and discarded:

SELECT 1 FROM sample_table WHERE column_1 > 50 AND column_2 < 50000