EXPLAIN_OPERATOR
Field	Type	Description
BUFFERS	double	Buffers
EXPLAIN_REQUESTER	string	Explain Requester
EXPLAIN_TIME	datetime	Explain Time
SOURCE_NAME	string	Source Name
SOURCE_SCHEMA	string	Source Schema
SOURCE_VERSION	string	Source Version
EXPLAIN_LEVEL	string	Explain Level
STMTNO	integer	Stmtno
SECTNO	integer	Sectno
OPERATOR_ID	integer	Operator Id
OPERATOR_TYPE	string	Operator Type
TOTAL_COST	double	Total Cost
IO_COST	double	Io Cost
CPU_COST	double	Cpu Cost
FIRST_ROW_COST	double	First Row Cost
RE_TOTAL_COST	double	Re Total Cost
RE_IO_COST	double	Re Io Cost
RE_CPU_COST	double	Re Cpu Cost
COMM_COST	double	Comm Cost
FIRST_COMM_COST	double	First Comm Cost
REMOTE_TOTAL_COST	double	Remote Total Cost
REMOTE_COMM_COST	double	Remote Comm Cost