hi,
i have btree index on a text type field. i want see rows which starts with
certain characters on that field. so i write a query like this:
SELECT * FROM mytable WHERE myfield LIKE 'john%'
since this condition is from start of the field, query planner should use
index to find such elements but explain command shows me it will do a
sequential scan.
is this lack of a feature or i am wrong somewhere?