mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-04 21:42:39 +00:00
49 lines
1.6 KiB
SQL
49 lines
1.6 KiB
SQL
set allow_suspicious_low_cardinality_types=1;
|
||
drop table if exists perf_lc_num;
|
||
|
||
CREATE TABLE perf_lc_num( num UInt8, arr Array(LowCardinality(Int64)) default [num] ) ENGINE = TinyLog;
|
||
|
||
INSERT INTO perf_lc_num (num) SELECT toUInt8(number) FROM numbers(10000000);
|
||
|
||
select sum(length(arr)) from perf_lc_num;
|
||
select sum(length(arr)), sum(num) from perf_lc_num;
|
||
|
||
INSERT INTO perf_lc_num (num) SELECT toUInt8(number) FROM numbers(10000000);
|
||
|
||
select sum(length(arr)) from perf_lc_num;
|
||
select sum(length(arr)), sum(num) from perf_lc_num;
|
||
|
||
drop table if exists perf_lc_num;
|
||
|
||
|
||
CREATE TABLE perf_lc_num( num UInt8, arr Array(LowCardinality(Int64)) default [num] ) ENGINE = Log;
|
||
|
||
INSERT INTO perf_lc_num (num) SELECT toUInt8(number) FROM numbers(10000000);
|
||
|
||
select sum(length(arr)) from perf_lc_num;
|
||
select sum(length(arr)), sum(num) from perf_lc_num;
|
||
|
||
INSERT INTO perf_lc_num (num) SELECT toUInt8(number) FROM numbers(10000000);
|
||
|
||
select sum(length(arr)) from perf_lc_num;
|
||
select sum(length(arr)), sum(num) from perf_lc_num;
|
||
|
||
drop table if exists perf_lc_num;
|
||
|
||
|
||
CREATE TABLE perf_lc_num( num UInt8, arr Array(LowCardinality(Int64)) default [num] ) ENGINE = StripeLog;
|
||
|
||
INSERT INTO perf_lc_num (num) SELECT toUInt8(number) FROM numbers(10000000);
|
||
|
||
select sum(length(arr)) from perf_lc_num;
|
||
select sum(length(arr)), sum(num) from perf_lc_num;
|
||
|
||
INSERT INTO perf_lc_num (num) SELECT toUInt8(number) FROM numbers(10000000);
|
||
|
||
select sum(length(arr)) from perf_lc_num;
|
||
select sum(length(arr)), sum(num) from perf_lc_num;
|
||
|
||
drop table if exists perf_lc_num;
|
||
|
||
|