Method setDsqlDesc

src/dsql/ExprNodes.h:261–264

	virtual void make(DsqlCompilerScratch* dsqlScratch, dsc* desc);

	void setDsqlDesc(const dsc& desc)
	{
		dsqlDesc = desc;
	}

	virtual void getDesc(thread_db* tdbb, CompilerScratch* csb, dsc* desc);
	virtual ValueExprNode* copy(thread_db* tdbb, NodeCopier& copier) const;