Postgresql - partitoned tables

CREATE TABLE "tbl"
(
    "id"                                             bigint         NOT NULL GENERATED ALWAYS AS IDENTITY,
    "user_id"                                        bigint         NOT NULL,
    "date"                                           timestamp      NOT NULL DEFAULT CURRENT_TIMESTAMP,

) PARTITION BY HASH (user_id);

CREATE TABLE tbl_p01 PARTITION OF tbl FOR VALUES WITH (MODULUS 4, REMAINDER 0);
CREATE TABLE tbl_p02 PARTITION OF tbl FOR VALUES WITH (MODULUS 4, REMAINDER 1);
CREATE TABLE tbl_p03 PARTITION OF tbl FOR VALUES WITH (MODULUS 4, REMAINDER 2);
CREATE TABLE tbl_p04 PARTITION OF tbl FOR VALUES WITH (MODULUS 4, REMAINDER 3);