Yeah - a pretty common index I tend to add is for foreign keys so like, say you have a table of `s
Yeah - a pretty common index I tend to add is for foreign keys
so like, say you have a table of
if you also store a timestamp in that table you might want to index against that too so filtering by date is fast, so it'd be like
so like, say you have a table of
sensors and another table of data, where data stores sensor_id, an index on that column speeds up queries like SELECT * FROM data WHERE sensor_id = ?if you also store a timestamp in that table you might want to index against that too so filtering by date is fast, so it'd be like
CREATE INDEX idx_data_sensor_id_timestamp_desc ON data(sensor_id, timestamp DESC)




