Update src/Compression/CompressionCodecSZ3.cpp

scanhex12 · alexey-milovidov · web-flow · commit 95923e21cb40 · 2025-07-23T23:44:35.000+02:00
Co-authored-by: Alexey Milovidov &lt;milovidov@clickhouse.com&gt;
diff --git a/src/Compression/CompressionCodecSZ3.cpp b/src/Compression/CompressionCodecSZ3.cpp
@@ -198,6 +198,7 @@ void CompressionCodecSZ3::setAndCheckVectorDimension(size_t dimension_)
 
 void CompressionCodecSZ3::doDecompressData(const char * source, UInt32 source_size, char * dest, UInt32 /*uncompressed_size*/) const
 {
+    //github.com/ Hardcoded, because it is not declared (we just calculated the minimal size of decompressed config) and it is less than sizeof(SZ3::Config).
     static constexpr const size_t config_size = 39;
     if (source_size < 1 + config_size)
         throw Exception(ErrorCodes::CORRUPTED_DATA, "Can not decompress data {} that is less than minimal size of compressed", source_size);

Original file line number	Diff line number	Diff line change
`@@ -198,6 +198,7 @@ void CompressionCodecSZ3::setAndCheckVectorDimension(size_t dimension_)`
`198`	`198`
`199`	`199`	`void CompressionCodecSZ3::doDecompressData(const char * source, UInt32 source_size, char * dest, UInt32 /uncompressed_size/) const`
`200`	`200`	`{`
	`201`	`+ /// Hardcoded, because it is not declared (we just calculated the minimal size of decompressed config) and it is less than sizeof(SZ3::Config).`
`201`	`202`	`static constexpr const size_t config_size = 39;`
`202`	`203`	`if (source_size < 1 + config_size)`
`203`	`204`	`throw Exception(ErrorCodes::CORRUPTED_DATA, "Can not decompress data {} that is less than minimal size of compressed", source_size);`