EXPLAIN_ARGUMENT
Field	Type	Description
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
ARGUMENT_TYPE	string	Argument Type
ARGUMENT_VALUE	string	Argument Value
LONG_ARGUMENT_VALUE	text	Long Argument Value