#include <Compression/ICompressionCodec.h>
#include <Compression/CompressionInfo.h>
#include <Compression/CompressionFactory.h>
#include <base/unaligned.h>
#include <Parsers/IAST.h>
#include <Parsers/ASTLiteral.h>
#include <Parsers/ASTFunction.h>
#include <IO/WriteHelpers.h>
namespace DB
{
class CompressionCodecDelta : public ICompressionCodec