grafana/pkg/tsdb/grafana-postgresql-datasource/testdata/time_series/fill_null.sql

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SQL

-- SELECT $__timeGroup("time",5m,NULL),c,avg(v) AS "v" FROM tbl GROUP BY 1,2 ORDER BY 1,2
-- tests fill-mode=null
CREATE TEMPORARY TABLE tbl (
"time" timestamp with time zone,
v double precision,
c text
);
INSERT INTO tbl ("time", v, c) VALUES
('2023-12-24 14:21:03 UTC', 10, 'a'),
('2023-12-24 14:21:03 UTC', 110, 'b'),
('2023-12-24 14:23:03 UTC', 20, 'a'),
('2023-12-24 14:23:03 UTC', 120, 'b'),
('2023-12-24 14:39:03 UTC', 50, 'a'),
('2023-12-24 14:39:03 UTC', 150, 'b');