thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-21 15:12:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added test #1890

Browse Source
This commit is contained in:
Alexey Milovidov 2018-06-12 06:44:53 +03:00
parent 24b0f77a2c
commit 777ace12b4
2 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
dbms/tests/queries/0_stateless/00646_weird_mmx.reference Normal file
View File

@ -0,0 +1 @@
4105

9
dbms/tests/queries/0_stateless/00646_weird_mmx.sql Normal file
View File

@ -0,0 +1,9 @@
DROP TABLE IF EXISTS test.weird_mmx;
CREATE TABLE test.weird_mmx (x Array(UInt64)) ENGINE = TinyLog;
-- this triggers overlapping matches in LZ4 decompression routine; 915 is the minimum number
-- see comment in LZ4_decompression_faster.cpp about usage of MMX registers
INSERT INTO test.weird_mmx SELECT range(number % 10) FROM system.numbers LIMIT 915;
SELECT sum(length(*)) FROM test.weird_mmx;
DROP TABLE test.weird_mmx;