gist-index

I can't use directly uuid with gist index CREATE INDEX idx_leaderboads_values_gist ON leaderboard_entry USING gist (id_leaderboard , value); And I got this error: ERROR: data type uuid has no default operator class for access method "gist" HINT: You must specify an operator class for the index or define a default operator class for the data type. Postgres 10 or newer btree_gist now also covers the data type uuid , like Paul commented . (And some other data types, remarkably all enum types.) Now all you need to do: install the extension once per database: CREATE EXTENSION btree_gist; Then your

From what information I could find, they both solve the same problems - more esoteric operations like array containment and intersection (&&, @>, <@, etc). However I would be interested in advice about when to use one or the other (or neither possibly). The PostgreSQL documentation has some information about this: GIN index lookups are about three times faster than GiST GIN indexes take about three times longer to build than GiST GIN indexes are about ten times slower to update than GiST GIN indexes are two-to-three times larger than GiST However I would be particularly interested to know if

I have a simple table which has a user_birthday field with a type of date (which can be NULL value) CREATE TABLE users ( user_id bigserial NOT NULL, user_email text NOT NULL, user_password text, user_first_name text NOT NULL, user_middle_name text, user_last_name text NOT NULL, user_birthday date, CONSTRAINT pk_users PRIMARY KEY (user_id) ) There's an index (btree) defined on that field, with the rule of NOT user_birthday IS NULL. CREATE INDEX ix_users_birthday ON users USING btree (user_birthday) WHERE NOT user_birthday IS NULL; Trying to follow up on another idea, I've added the extension