Mar 6, 2021 ... ... 1,10000000) g; VACUUM (FREEZE, ANALYZE) events_2021_feb; Copy. Later ... SELECT COUNT(*) FROM events; -- parent table scans both partitions count ...
Sep 20, 2015 ... ... SELECT 'Record #' || i FROM generate_series(1, 1000000) i;. Considering the following SQL statement for selecting 10 random rows: SELECT ...
Sep 17, 2021 ... Improved performance for lookup queries on columnar tables. CREATE INDEX on partitioned tables that have columnar partitions. One of the ...
Aug 7, 2015 ... INSERT INTO ts_test (title) SELECT 'Record #' || i FROM generate_series(1, 1000000) i;. SYSTEM Table Sampling. In this example our aim is to ...
-- 29768 rows SELECT Count(*) FROM srtm_12_03;. Those binary raster tiles aren't ... CREATE TABLE a AS SELECT generate_series(1,1000000) AS i ORDER BY random ...
Jul 12, 2016 ... ... generate_series(1,100000000) s(i);. and three additional tables have ... SELECT branch_id, SUM(amount) FROM t_10000 GROUP BY 1. and then ...
Nov 4, 2013 ... T1| regress=> create table x as select a FROM generate_series(1,1000000) a; T1| regress=> T2| $ ^C T2| [ perf record: Woken up 332 times to ...