I use MySQL 5.0.15

I have about 5 billion rows in table X, i create another table Y with the same stucture with X
CREATE TABLE Y LIKE X;

Both X and Y is the InnoDB table, since i believe that both work on the "row locking" models

I try to initiate 2 session

First session try to INSERT all of data from X to Y like this

INSERT INTO Y SELECT *  FROM X;

After a while (i need a long time to finish this Query), i start my second session and try
to insert a data into Y

What happened later make me confuse, because

INSERT INTO Y VALUES (something) is just hang on, seems waiting another operation to be finished

Why concurrent insert is not working?

FYI, i use standar configuration from MySQL

Any explanation?

Thx



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