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Fix issue #45195

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This commit is contained in:
Robert Schulze 2023-01-22 16:16:56 +00:00
parent f02a763830
commit 9c48ac79c8
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GPG Key ID: 26703B55FB13728A
3 changed files with 44 additions and 1 deletions
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2
src/Compression/CompressionCodecGorilla.cpp
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@ -403,7 +403,7 @@ UInt32 CompressionCodecGorilla::doCompressData(const char * source, UInt32 sourc
break;
}
return 1 + 1 + result_size;
return 2 + bytes_to_skip + result_size;
}
void CompressionCodecGorilla::doDecompressData(const char * source, UInt32 source_size, char * dest, UInt32 uncompressed_size) const

9
tests/queries/0_stateless/02536_delta_gorilla_corruption.reference Normal file
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@ -0,0 +1,9 @@
Original bug: the same query executed multiple times yielded different results.
For unclear reasons this happened only in Release builds, not in Debug builds.
0
0
0
The same issue in a much smaller repro happens also in Debug builds
0
1
3

34
tests/queries/0_stateless/02536_delta_gorilla_corruption.sql Normal file
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@ -0,0 +1,34 @@
select 'Original bug: the same query executed multiple times yielded different results.';
select 'For unclear reasons this happened only in Release builds, not in Debug builds.';
drop table if exists bug_delta_gorilla;
create table bug_delta_gorilla
(value_bug UInt64 codec (Delta, Gorilla))
engine = MergeTree
order by tuple()
as (select 0 from numbers(30000000));
select count(*)
from bug_delta_gorilla
where 0 <> value_bug;
select count(*)
from bug_delta_gorilla
where 0 <> value_bug;
select count(*)
from bug_delta_gorilla
where 0 <> value_bug;
drop table if exists bug_delta_gorilla;
select 'The same issue in a much smaller repro happens also in Debug builds';
create table bug_delta_gorilla (val UInt64 codec (Delta, Gorilla))
engine = MergeTree
order by val;
insert into bug_delta_gorilla values (0)(1)(3);
select * from bug_delta_gorilla;
drop table if exists bug_delta_gorilla;