Sum

Compute the sum of a field

The sum aggregation computes the sum of a field.

SELECT pdb.agg('{"sum": {"field": "rating"}}') FROM mock_items
WHERE id @@@ pdb.all();

Expected Response

       agg
------------------
 {"value": 158.0}
(1 row)

See the Tantivy documentation for all available options.

SQL Sum Syntax

SQL’s SUM syntax is supported in beta. To enable it, first run

SET paradedb.enable_aggregate_custom_scan TO on;

With this feature enabled, the following query is equivalent to the above and is executed in the same way.

SELECT SUM(rating) FROM mock_items
WHERE id @@@ pdb.all();

By default, SUM ignores null values. Use COALESCE to include them in the final sum:

SELECT SUM(COALESCE(rating, 0)) FROM mock_items
WHERE id @@@ pdb.all();