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Added params

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This commit is contained in:
Александр Нам 2023-08-22 21:39:29 +00:00
parent e8a3914baa
commit 480d2df4e8
2 changed files with 28 additions and 4 deletions
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23
src/Compression/CompressionCodecGCD.cpp
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@ -45,8 +45,9 @@ namespace ErrorCodes
{
extern const int CANNOT_COMPRESS;
extern const int CANNOT_DECOMPRESS;
extern const int BAD_ARGUMENTS;
extern const int ILLEGAL_SYNTAX_FOR_CODEC_TYPE;
extern const int ILLEGAL_CODEC_PARAMETER;
extern const int BAD_ARGUMENTS;
}
UInt32 CompressionCodecGCD::getMaxCompressedDataSize(UInt32 uncompressed_size) const
@ -255,13 +256,27 @@ void registerCodecGCD(CompressionCodecFactory & factory)
{
/// Default bytes size is 1.
UInt8 gcd_bytes_size = 1;
if (column_type)
if (arguments && !arguments->children.empty())
{
if (arguments->children.size() > 1)
throw Exception(ErrorCodes::ILLEGAL_SYNTAX_FOR_CODEC_TYPE, "GCD codec must have 1 parameter, given {}", arguments->children.size());
const auto children = arguments->children;
const auto * literal = children[0]->as<ASTLiteral>();
if (!literal || literal->value.getType() != Field::Types::Which::UInt64)
throw Exception(ErrorCodes::ILLEGAL_CODEC_PARAMETER, "GCD codec argument must be unsigned integer");
size_t user_bytes_size = literal->value.safeGet<UInt64>();
if (user_bytes_size != 1 && user_bytes_size != 2 && user_bytes_size != 4 && user_bytes_size != 8 && user_bytes_size != 16 && user_bytes_size != 32)
throw Exception(ErrorCodes::ILLEGAL_CODEC_PARAMETER, "GCD value for gcd codec can be 1, 2, 4, 8, 16 or 32, given {}", user_bytes_size);
gcd_bytes_size = static_cast<UInt8>(user_bytes_size);
}
else if (column_type)
{
gcd_bytes_size = getGCDBytesSize(column_type);
}
if (arguments && !arguments->children.empty())
throw Exception(ErrorCodes::ILLEGAL_SYNTAX_FOR_CODEC_TYPE, "GCD codec must have 0 parameters, given {}", arguments->children.size());
return std::make_shared<CompressionCodecGCD>(gcd_bytes_size);
};
factory.registerCompressionCodecWithType("GCD", method_code, codec_builder);

9
tests/performance/codec_gcd.xml Normal file
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@ -0,0 +1,9 @@
<test>
<create_query>CREATE TABLE gcd_codec (n UInt64 CODEC(GCD, LZ4)) ENGINE = MergeTree ORDER BY tuple()</create_query>
<query>INSERT INTO gcd_codec SELECT number FROM system.numbers LIMIT 20000000 SETTINGS max_threads=1</query>
<query>INSERT INTO gcd_codec SELECT number*1000 FROM system.numbers LIMIT 20000000 SETTINGS max_threads=1</query>
<query>INSERT INTO gcd_codec SELECT intHash64(number) FROM system.numbers LIMIT 20000000 SETTINGS max_threads=1</query>
<drop_query>DROP TABLE gcd_codec</drop_query>
</test>