SELECT set_smlar_limit(0.6); SELECT t, ARRAY( SELECT epoch2timestamp(v)::timestamptz FROM generate_series(1, t) as v ) AS v INTO test_timestamptz FROM generate_series(1, 200) as t; SELECT t, smlar(v, to_tsp_array('{10,9,8,7,6,5,4,3,2,1}')::timestamptz[]) AS s FROM test_timestamptz WHERE v % to_tsp_array('{10,9,8,7,6,5,4,3,2,1}')::timestamptz[] ORDER BY s DESC, t; SELECT t, smlar(v, to_tsp_array('{50,49,8,7,6,5,4,33,2,1}')::timestamptz[]) AS s FROM test_timestamptz WHERE v % to_tsp_array('{50,49,8,7,6,5,4,33,2,1}')::timestamptz[] ORDER BY s DESC, t; CREATE INDEX idx_test_timestamptz ON test_timestamptz USING gist (v _timestamptz_sml_ops); SET enable_seqscan=off; SELECT t, smlar(v, to_tsp_array('{10,9,8,7,6,5,4,3,2,1}')::timestamptz[]) AS s FROM test_timestamptz WHERE v % to_tsp_array('{10,9,8,7,6,5,4,3,2,1}')::timestamptz[] ORDER BY s DESC, t; SELECT t, smlar(v, to_tsp_array('{50,49,8,7,6,5,4,33,2,1}')::timestamptz[]) AS s FROM test_timestamptz WHERE v % to_tsp_array('{50,49,8,7,6,5,4,33,2,1}')::timestamptz[] ORDER BY s DESC, t; DROP INDEX idx_test_timestamptz; CREATE INDEX idx_test_timestamptz ON test_timestamptz USING gin (v _timestamptz_sml_ops); SELECT t, smlar(v, to_tsp_array('{10,9,8,7,6,5,4,3,2,1}')::timestamptz[]) AS s FROM test_timestamptz WHERE v % to_tsp_array('{10,9,8,7,6,5,4,3,2,1}')::timestamptz[] ORDER BY s DESC, t; SELECT t, smlar(v, to_tsp_array('{50,49,8,7,6,5,4,33,2,1}')::timestamptz[]) AS s FROM test_timestamptz WHERE v % to_tsp_array('{50,49,8,7,6,5,4,33,2,1}')::timestamptz[] ORDER BY s DESC, t; SET enable_seqscan=on;