EXPLAIN_PREDICATE
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
PREDICATE_ID	integer	Predicate Id
HOW_APPLIED	string	How Applied
WHEN_EVALUATED	string	When Evaluated
RELOP_TYPE	string	Relop Type
SUBQUERY	string	Subquery
FILTER_FACTOR	double	Filter Factor
PREDICATE_TEXT	text	Predicate Text
RANGE_NUM	integer	Range Num
INDEX_COLSEQ	integer	Index Colseq