Design the message queue storage MySQL form of message data

[job requirements]

• 1. Including table name, field, index;

• 2. Use text to describe the design ideas and reasons, such as: Why design an index?

• 3. One page of PPT is enough.

[Tips]

• 1. Need to consider one table for each message queue or one table for all messages, which adds a "Queue Name" field.

design

message table design:

is used to record the message body, the fields include:

id : mysql auto-increment id, unique index of primary key

msg_id : message id, unique index, id generated by id generator

type : message type, 1. unicast message, 2.Broadcast message, 3. Delayed message, 4. Transaction message

body: text type, large text, message body

status: message status: 1. Not consumed, 2.Consumption completed

send_time: timestamp type, used when tpye=3, indicating message delivery time

create_time: creation time

update_time: last consumptionTime

Index:

id Unique index of primary key

msg_id Unique index, indicating the unique identification of the message, to prevent duplication

typeOrdinary index, easy to query a type of message