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Merge pull request #57787 from kitaisreal/serialization-string-reduce-memory-usage

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SerializationString reduce memory usage
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Alexey Milovidov 2023-12-13 19:56:56 +01:00 committed by GitHub
commit e989eb7bd2
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2 changed files with 5 additions and 3 deletions
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2
src/DataTypes/Serializations/SerializationString.cpp
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@ -175,7 +175,7 @@ static NO_INLINE void deserializeBinarySSE2(ColumnString::Chars & data, ColumnSt
offsets.push_back(offset);
if (unlikely(offset > data.size()))
data.resize(roundUpToPowerOfTwoOrZero(std::max(offset, data.size() * 2)));
data.resize_exact(roundUpToPowerOfTwoOrZero(std::max(offset, data.size() * 2)));
if (size)
{

6
tests/queries/0_stateless/01926_order_by_desc_limit.sql
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@ -11,9 +11,11 @@ SETTINGS index_granularity = 1024, index_granularity_bytes = '10Mi';
INSERT INTO order_by_desc SELECT number, repeat('a', 1024) FROM numbers(1024 * 300);
OPTIMIZE TABLE order_by_desc FINAL;
SELECT s FROM order_by_desc ORDER BY u DESC LIMIT 10 FORMAT Null;
SELECT s FROM order_by_desc ORDER BY u DESC LIMIT 10 FORMAT Null
SETTINGS max_memory_usage = '400M';
SELECT s FROM order_by_desc ORDER BY u LIMIT 10 FORMAT Null;
SELECT s FROM order_by_desc ORDER BY u LIMIT 10 FORMAT Null
SETTINGS max_memory_usage = '400M';
SYSTEM FLUSH LOGS;