thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-25 09:02:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix 01019_Buffer_and_max_memory_usage

Browse Source 
Before it does not check what it was intended, since it was too tricky.
This commit is contained in:
Azat Khuzhin 2020-11-30 23:33:46 +03:00
parent 9a3feb770e
commit b4c7540436
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
tests/queries/0_stateless/01019_Buffer_and_max_memory_usage.sql
View File

@ -1,5 +1,6 @@
DROP TABLE IF EXISTS null_;
DROP TABLE IF EXISTS buffer_;
DROP TABLE IF EXISTS aggregation_;
-- Each UInt64 is 8 bytes
-- So 10e6 rows is 80e6 bytes
@ -30,6 +31,11 @@ INSERT INTO buffer_ SELECT toUInt64(number) FROM system.numbers LIMIT toUInt64(1
OPTIMIZE TABLE buffer_; -- flush just in case
-- create complex aggregation to fail with Memory limit exceede error while writing to Buffer()
-- String over UInt64 is enough to trigger the problem.
CREATE MATERIALIZED VIEW aggregation_ engine=Memory() AS SELECT toString(key) FROM null_;
-- Check that max_memory_usage is ignored during write from StorageBuffer
SET min_insert_block_size_bytes=0;
SET min_insert_block_size_rows=100e3;
INSERT INTO buffer_ SELECT toUInt64(number) FROM system.numbers LIMIT toUInt64(10e6+1);
@ -38,3 +44,4 @@ SELECT count() FROM buffer_;
DROP TABLE null_;
DROP TABLE buffer_;
DROP TABLE aggregation_;