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Mcol 3738 Allow COUNT(DISTINCT to have multiple parms) (#2002)

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* MCOL-3738 allow COUNT(DISTINCT) multiple parameters
Changes in the way tupleaggregatestep sets up the aggregate arrays.

* MCOL-3738 mtr test
This commit is contained in:
David.Hall
2021-06-28 12:14:44 -05:00
committed by GitHub
parent 994e8027bd
commit 132146b9c8
4 changed files with 310 additions and 105 deletions
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38
mysql-test/columnstore/basic/r/mcol3738_count_distinct_multiparm.result Normal file
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DROP DATABASE IF EXISTS mcol_3738_db;
CREATE DATABASE mcol_3738_db;
USE mcol_3738_db;
CREATE TABLE `t1` (
idx int(11),
c1 int(11),
c2 int(11),
c3 int(11),
char1 varchar(28)
) ENGINE=Columnstore DEFAULT CHARSET=utf8mb4;
insert into t1 values (1, 2, 2, 1, "something this way comes"),
(1, 2, 3, 1, "elsewhere this way comes"),
(1, 2, 4, 1, "something this way comes"),
(1, 3, 2, 2, "something this way comes"),
(1, 3, 3, 2, "elsewhere this way comes"),
(1, 3, 4, 2, "elsewhere this way comes"),
(2, 2, 2, 3, "something this way comes"),
(2, 2, 3, 3, "elsewhere this way comes"),
(2, 2, 4, 3, "something this way comes"),
(3, 3, 2, 4, "something this way comes"),
(3, 3, 3, 4, "elsewhere this way comes"),
(4, 3, 4, 5, "elsewhere this way comes");
select count(distinct c1, c2), count(distinct char1) from t1;
count(distinct c1, c2) count(distinct char1)
6 2
select idx, count(distinct c1, c2), count(distinct c1, c3, char1) from t1 group by idx order by idx;
idx count(distinct c1, c2) count(distinct c1, c3, char1)
1 6 4
2 3 2
3 2 2
4 1 1
select idx, sum(c3), count(distinct c1, c2), count(distinct c1, c3, char1), group_concat("ls_", char1) from t1 group by idx order by idx;
idx sum(c3) count(distinct c1, c2) count(distinct c1, c3, char1) group_concat("ls_", char1)
1 9 6 4 ls_something this way comes,ls_elsewhere this way comes,ls_something this way comes,ls_something this way comes,ls_elsewhere this way comes,ls_elsewhere this way comes
2 9 3 2 ls_something this way comes,ls_elsewhere this way comes,ls_something this way comes
3 8 2 2 ls_something this way comes,ls_elsewhere this way comes
4 5 1 1 ls_elsewhere this way comes
DROP DATABASE mcol_3738_db;

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mysql-test/columnstore/basic/t/mcol3738_count_distinct_multiparm.test Normal file
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#
# Test COUNT(DISTINCT n, m, ...)
# Author: David Hall, david.hall@mariadb.com
#
-- source ../include/have_columnstore.inc
--disable_warnings
DROP DATABASE IF EXISTS mcol_3738_db;
--enable_warnings
CREATE DATABASE mcol_3738_db;
USE mcol_3738_db;
CREATE TABLE `t1` (
idx int(11),
c1 int(11),
c2 int(11),
c3 int(11),
char1 varchar(28)
) ENGINE=Columnstore DEFAULT CHARSET=utf8mb4;
insert into t1 values (1, 2, 2, 1, "something this way comes"),
(1, 2, 3, 1, "elsewhere this way comes"),
(1, 2, 4, 1, "something this way comes"),
(1, 3, 2, 2, "something this way comes"),
(1, 3, 3, 2, "elsewhere this way comes"),
(1, 3, 4, 2, "elsewhere this way comes"),
(2, 2, 2, 3, "something this way comes"),
(2, 2, 3, 3, "elsewhere this way comes"),
(2, 2, 4, 3, "something this way comes"),
(3, 3, 2, 4, "something this way comes"),
(3, 3, 3, 4, "elsewhere this way comes"),
(4, 3, 4, 5, "elsewhere this way comes");
select count(distinct c1, c2), count(distinct char1) from t1;
select idx, count(distinct c1, c2), count(distinct c1, c3, char1) from t1 group by idx order by idx;
# group_concat causes the aggregation to be performed on UM only.
select idx, sum(c3), count(distinct c1, c2), count(distinct c1, c3, char1), group_concat("ls_", char1) from t1 group by idx order by idx;
# Clean UP
DROP DATABASE mcol_3738_db;