Method SubExprNodeCopier

src/dsql/Nodes.h:1674–1681

{
public:
	SubExprNodeCopier(Firebird::MemoryPool& pool, CompilerScratch* aCsb)
		: NodeCopier(pool, aCsb, getBuffer(STREAM_MAP_LENGTH))
	{
		// Initialize the map so all streams initially resolve to the original number.
		// As soon as copy creates new streams, the map is being overwritten.
		for (unsigned i = 0; i < STREAM_MAP_LENGTH; ++i)
			remap[i] = i;
	}
};