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Merge pull request #71894 from udiz/fix-arrayWithConstant-size-estimation

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Fix: arrayWithConstant size estimation using row's element size
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Shichao Jin 2024-11-20 19:56:27 +00:00 committed by GitHub
commit 40c7d5fd1a
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2 changed files with 7 additions and 3 deletions
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7
src/Functions/array/arrayWithConstant.cpp
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@ -62,16 +62,17 @@ public:
for (size_t i = 0; i < num_rows; ++i)
{
auto array_size = col_num->getInt(i);
auto element_size = col_value->byteSizeAt(i);
if (unlikely(array_size < 0))
throw Exception(ErrorCodes::TOO_LARGE_ARRAY_SIZE, "Array size {} cannot be negative: while executing function {}", array_size, getName());
Int64 estimated_size = 0;
if (unlikely(common::mulOverflow(array_size, col_value->byteSize(), estimated_size)))
throw Exception(ErrorCodes::TOO_LARGE_ARRAY_SIZE, "Array size {} with element size {} bytes is too large: while executing function {}", array_size, col_value->byteSize(), getName());
if (unlikely(common::mulOverflow(array_size, element_size, estimated_size)))
throw Exception(ErrorCodes::TOO_LARGE_ARRAY_SIZE, "Array size {} with element size {} bytes is too large: while executing function {}", array_size, element_size, getName());
if (unlikely(estimated_size > max_array_size_in_columns_bytes))
throw Exception(ErrorCodes::TOO_LARGE_ARRAY_SIZE, "Array size {} with element size {} bytes is too large: while executing function {}", array_size, col_value->byteSize(), getName());
throw Exception(ErrorCodes::TOO_LARGE_ARRAY_SIZE, "Array size {} with element size {} bytes is too large: while executing function {}", array_size, element_size, getName());
offset += array_size;

3
tests/queries/0_stateless/03216_arrayWithConstant_limits.sql
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@ -1,3 +1,6 @@
SELECT arrayWithConstant(96142475, ['qMUF']); -- { serverError TOO_LARGE_ARRAY_SIZE }
SELECT arrayWithConstant(100000000, materialize([[[[[[[[[['Hello, world!']]]]]]]]]])); -- { serverError TOO_LARGE_ARRAY_SIZE }
SELECT length(arrayWithConstant(10000000, materialize([[[[[[[[[['Hello world']]]]]]]]]])));
CREATE TEMPORARY TABLE args (value Array(Int)) ENGINE=Memory AS SELECT [1, 1, 1, 1] as value FROM numbers(1, 100);
SELECT length(arrayWithConstant(1000000, value)) FROM args FORMAT NULL;