Query
CREATE TABLE `action` (
`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
`user_id` INTEGER NULL,
`op_type` INTEGER NULL,
`act_user_id` INTEGER NULL,
`repo_id` INTEGER NULL,
`comment_id` INTEGER NULL,
`is_deleted` INTEGER DEFAULT 0 NOT NULL,
`ref_name` TEXT NULL,
`is_private` INTEGER DEFAULT 0 NOT NULL,
`content` TEXT NULL,
`created_unix` INTEGER NULL
)