thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-21 07:01:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

dbms: Server: Fixed unsigned int overflow issues. Updated functional test. [#METR-16435]

Browse Source
This commit is contained in:
Alexey Arno 2015-07-16 16:01:49 +03:00
parent ba7b7dd52d
commit 5dcda93405
3 changed files with 106 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
dbms/src/Storages/MergeTree/MergeTreeDataSelectExecutor.cpp
View File

@ -167,20 +167,20 @@ BlockInputStreams MergeTreeDataSelectExecutor::read(
UInt64 sampling_column_value_lower_limit;
UInt64 sampling_column_value_upper_limit;
UInt64 upper_limit = static_cast<UInt64>(static_cast<long double>(relative_sample_size) * sampling_column_max);
UInt64 upper_limit = static_cast<long double>(relative_sample_size) * sampling_column_max;
if (settings.parallel_replicas_count > 1)
{
sampling_column_value_lower_limit = (settings.parallel_replica_offset * upper_limit) / settings.parallel_replicas_count;
sampling_column_value_lower_limit = (static_cast<long double>(settings.parallel_replica_offset) / settings.parallel_replicas_count) * upper_limit;
if ((settings.parallel_replica_offset + 1) < settings.parallel_replicas_count)
sampling_column_value_upper_limit = ((settings.parallel_replica_offset + 1) * upper_limit) / settings.parallel_replicas_count;
sampling_column_value_upper_limit = (static_cast<long double>(settings.parallel_replica_offset + 1) / settings.parallel_replicas_count) * upper_limit;
else
sampling_column_value_upper_limit = upper_limit + 1;
sampling_column_value_upper_limit = (upper_limit < sampling_column_max) ? (upper_limit + 1) : upper_limit;
}
else
{
sampling_column_value_lower_limit = 0;
sampling_column_value_upper_limit = upper_limit + 1;
sampling_column_value_upper_limit = (upper_limit < sampling_column_max) ? (upper_limit + 1) : upper_limit;
}
/// Добавим условие, чтобы отсечь еще что-нибудь при повторном просмотре индекса.

56
dbms/tests/queries/0_stateless/00193_parallel_replicas.reference
View File

@ -1,3 +1,57 @@
1000000
1
1
1 2 A
3 4 B
5 6 C
7 8 D
9 10 E
11 12 F
13 14 G
15 16 H
17 18 I
19 20 J
21 22 K
23 24 L
25 26 M
27 28 N
29 30 O
31 32 P
33 34 Q
35 36 R
37 38 S
39 40 T
41 42 U
43 44 V
45 46 W
47 48 X
49 50 Y
51 52 Z
1
1
1
1 2 A
3 4 B
5 6 C
7 8 D
9 10 E
11 12 F
13 14 G
15 16 H
17 18 I
19 20 J
21 22 K
23 24 L
25 26 M
27 28 N
29 30 O
31 32 P
33 34 Q
35 36 R
37 38 S
39 40 T
41 42 U
43 44 V
45 46 W
47 48 X
49 50 Y
51 52 Z

50
dbms/tests/queries/0_stateless/00193_parallel_replicas.sql
View File

@ -1,13 +1,55 @@
DROP TABLE IF EXISTS test.parallel_replicas;
CREATE TABLE test.parallel_replicas (d Date DEFAULT today(), x UInt32, u UInt64, s String) ENGINE = MergeTree(d, cityHash64(u, s), (x, d, cityHash64(u, s)), 8192);
INSERT INTO test.parallel_replicas (x, u, s) SELECT toUInt32(number / 1000) AS x, toUInt64(number % 1000) AS u, toString(rand64()) AS s FROM system.numbers LIMIT 1000000;
INSERT INTO test.parallel_replicas (x, u, s) VALUES (1, 2, 'A'),(3, 4, 'B'),(5, 6, 'C'),(7, 8, 'D'),(9,10,'E');
INSERT INTO test.parallel_replicas (x, u, s) VALUES (11, 12, 'F'),(13, 14, 'G'),(15, 16, 'H'),(17, 18, 'I'),(19,20,'J');
INSERT INTO test.parallel_replicas (x, u, s) VALUES (21, 22, 'K'),(23, 24, 'L'),(25, 26, 'M'),(27, 28, 'N'),(29,30,'O');
INSERT INTO test.parallel_replicas (x, u, s) VALUES (31, 32, 'P'),(33, 34, 'Q'),(35, 36, 'R'),(37, 38, 'S'),(39,40,'T');
INSERT INTO test.parallel_replicas (x, u, s) VALUES (41, 42, 'U'),(43, 44, 'V'),(45, 46, 'W'),(47, 48, 'X'),(49,50,'Y');
INSERT INTO test.parallel_replicas (x, u, s) VALUES (51, 52, 'Z');
SELECT count() FROM test.parallel_replicas;
SELECT count() > 0 FROM test.parallel_replicas SAMPLE 0.5;
/*
* Проверяем, что:
* - на каждой реплике таблица не пустая;
* - объединение данных всех реплик совпадает с содержанием таблицы test.parallel_replicas.
*/
/* Две реплики */
DROP TABLE IF EXISTS test.parallel_replicas_backup;
CREATE TABLE test.parallel_replicas_backup(d Date DEFAULT today(), x UInt32, u UInt64, s String) ENGINE = Memory;
SET parallel_replicas_count = 2;
SET parallel_replica_offset = 0;
INSERT INTO test.parallel_replicas_backup(d, x, u, s) SELECT d, x, u, s FROM test.parallel_replicas;
SELECT count() > 0 FROM test.parallel_replicas;
SET parallel_replica_offset = 1;
SELECT count() FROM test.parallel_replicas;
INSERT INTO test.parallel_replicas_backup(d, x, u, s) SELECT d, x, u, s FROM test.parallel_replicas;
SELECT count() > 0 FROM test.parallel_replicas;
SET parallel_replicas_count = 0;
SELECT x, u, s FROM test.parallel_replicas_backup ORDER BY x, u, s ASC;
DROP TABLE IF EXISTS test.parallel_replicas_backup;
CREATE TABLE test.parallel_replicas_backup(d Date DEFAULT today(), x UInt32, u UInt64, s String) ENGINE = Memory;
/* Три реплики */
SET parallel_replicas_count = 3;
SET parallel_replica_offset = 0;
INSERT INTO test.parallel_replicas_backup(d, x, u, s) SELECT d, x, u, s FROM test.parallel_replicas;
SELECT count() > 0 FROM test.parallel_replicas;
SET parallel_replica_offset = 1;
INSERT INTO test.parallel_replicas_backup(d, x, u, s) SELECT d, x, u, s FROM test.parallel_replicas;
SELECT count() > 0 FROM test.parallel_replicas;
SET parallel_replica_offset = 2;
INSERT INTO test.parallel_replicas_backup(d, x, u, s) SELECT d, x, u, s FROM test.parallel_replicas;
SELECT count() > 0 FROM test.parallel_replicas;
SET parallel_replicas_count = 0;
SELECT x, u, s FROM test.parallel_replicas_backup ORDER BY x, u, s ASC;