Array
(
    [Field] => id
    [Type] => bigint(20) unsigned
    [Null] => NO
    [Key] => PRI
    [Default] => 
    [Extra] => auto_increment
)
Array
(
    [Field] => user_id
    [Type] => int(11)
    [Null] => YES
    [Key] => 
    [Default] => 0
    [Extra] => 
)
Array
(
    [Field] => id_topik
    [Type] => bigint(20) unsigned
    [Null] => NO
    [Key] => 
    [Default] => 
    [Extra] => 
)
Array
(
    [Field] => pdf_path
    [Type] => varchar(255)
    [Null] => NO
    [Key] => 
    [Default] => 
    [Extra] => 
)
Array
(
    [Field] => status
    [Type] => enum('pending','processing','done','error')
    [Null] => YES
    [Key] => 
    [Default] => pending
    [Extra] => 
)
Array
(
    [Field] => attempt
    [Type] => int(11)
    [Null] => YES
    [Key] => 
    [Default] => 0
    [Extra] => 
)
Array
(
    [Field] => last_error
    [Type] => text
    [Null] => YES
    [Key] => 
    [Default] => 
    [Extra] => 
)
Array
(
    [Field] => created_at
    [Type] => timestamp
    [Null] => NO
    [Key] => 
    [Default] => current_timestamp()
    [Extra] => 
)
Array
(
    [Field] => updated_at
    [Type] => timestamp
    [Null] => NO
    [Key] => 
    [Default] => current_timestamp()
    [Extra] => on update current_timestamp()
)
Array
(
    [Field] => mode
    [Type] => enum('easy','expert')
    [Null] => YES
    [Key] => 
    [Default] => easy
    [Extra] => 
)