create table performance_schema.accounts
(
    USER                          char(32) collate utf8mb4_bin null,
    HOST                          char(255) charset ascii      null,
    CURRENT_CONNECTIONS           bigint                       not null,
    TOTAL_CONNECTIONS             bigint                       not null,
    MAX_SESSION_CONTROLLED_MEMORY bigint unsigned              not null,
    MAX_SESSION_TOTAL_MEMORY      bigint unsigned              not null,
    constraint ACCOUNT
        unique (USER, HOST) using hash
)
    engine = PERFORMANCE_SCHEMA;