| -- |
| -- @description interconnect tests for packet control |
| -- @created 2012-11-08 09:00:00 |
| -- @modified 2012-11-08 09:00:00 |
| -- @tags executor |
| -- @gpdb_version [4.2.3.0,main] |
| |
| SET gp_interconnect_queue_depth=4; |
| SET gp_interconnect_snd_queue_depth=2; |
| -- Create a table |
| CREATE TEMP TABLE small_table(dkey INT, jkey INT, rval REAL, tval TEXT default 'abcdefghijklmnopqrstuvwxyz') DISTRIBUTED BY (dkey); |
| |
| -- Generate some data |
| INSERT INTO small_table VALUES(generate_series(1, 5000), generate_series(5001, 10000), sqrt(generate_series(5001, 10000))); |
| |
| -- Functional tests |
| -- Skew with gather+redistribute |
| -- seq = 20 |
| SELECT ROUND(foo.rval * foo.rval)::INT % 30 AS rval2, COUNT(*) AS count, SUM(length(foo.tval)) AS sum_len_tval |
| FROM (SELECT 5001 AS jkey, rval, tval FROM small_table ORDER BY dkey LIMIT 3000) foo |
| JOIN small_table USING(jkey) |
| GROUP BY rval2 |
| ORDER BY rval2; |