show create table performance_schema.persisted_variables;
Table	Create Table
persisted_variables	CREATE TABLE `persisted_variables` (
  `VARIABLE_NAME` varchar(64) NOT NULL,
  `VARIABLE_VALUE` varchar(1024) DEFAULT NULL,
  PRIMARY KEY (`VARIABLE_NAME`)
) ENGINE=PERFORMANCE_SCHEMA DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
select * from INFORMATION_SCHEMA.STATISTICS
where TABLE_SCHEMA = "performance_schema"
  and TABLE_NAME = "persisted_variables";
TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	NON_UNIQUE	INDEX_SCHEMA	INDEX_NAME	SEQ_IN_INDEX	COLUMN_NAME	COLLATION	CARDINALITY	SUB_PART	PACKED	NULLABLE	INDEX_TYPE	COMMENT	INDEX_COMMENT	IS_VISIBLE	EXPRESSION
def	performance_schema	persisted_variables	0	performance_schema	PRIMARY	1	VARIABLE_NAME	NULL	NULL	NULL	NULL		HASH			YES	NULL