MySQL GTID 一致性违规

Question

I am trying to create a table from a select statement, and it give me a GTID consistency violation. [HY000][1786] Statement violates GTID consistency: CREATE TABLE ... SELECT.

create TABLE tags_mentions as
    select t.*, st.ts, m.user_id_from, m.user_id_to from Tags as t join Mentions as m
        on t.status_id = m.status_id AND m.user_id_from != m.user_id_to
        left join Statuses as st on t.status_id = st.status_id;

What is GTID consistency, and how can I fix the SQL statement to avoid the violation?

Answer 1

If you want to fix the error another way, you can concisely create the table and insert separately with:

CREATE TABLE new_table LIKE old_table; 
INSERT new_table SELECT * FROM old_table;

Answer 2

CREATE TABLE ... SELECT is not safe for statement-based replication. When using row-based replication, this statement is actually logged as two separate events — one for the creation of the table, and another for the insertion of rows from the source table into the new table just created.

When this statement is executed within a transaction, it is possible in some cases for these two events to receive the same transaction identifier, which means that the transaction containing the inserts is skipped by the slave. Therefore, CREATE TABLE ... SELECT is not supported when using GTID-based replication.

Answer 3

From here https://dev.mysql.com/doc/refman/5.6/en/replication-options-gtids.html

Since only transactionally safe statements can be logged when --enforce-gtid-consistency is enabled, it follows that the operations listed here cannot be used with this option:

• CREATE TABLE ... SELECT statements
• CREATE TEMPORARY TABLE statements inside transactions
• Transactions or statements that update both transactional and non-transactional tables

You seem to have enforce GTID set. So this statement is not allowed.

Answer 4

If you do not care to replicate it on the slave, you can turn off the binlog:

set sql_log_bin=0;
create table ... select ...