Alter Table Without Locking Mysql at Jack Nusbaum blog

Alter Table Without Locking Mysql. add column runs; i want to add column to an existing table. From 5.6 on, and using innodb, locks are not required for many. Profiling shows metadata locks but with short waiting times (1 sec each), and table alteration completes in around 30. using the innodb plugin, alter table statements which only add or drop secondary indexes can be done quickly,. if your statements refer to a table by means of an alias, you must lock the table using that same alias. Is there a manner to alter the table without locking it? It does not work to lock. For example, you can add or delete columns, create or destroy indexes,. alter table changes the structure of a table. For mysql < 5.6 locks are required.

Mysql Alter table Add column in mysql table MySQL alter commands
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From 5.6 on, and using innodb, locks are not required for many. For mysql < 5.6 locks are required. add column runs; alter table changes the structure of a table. if your statements refer to a table by means of an alias, you must lock the table using that same alias. It does not work to lock. Is there a manner to alter the table without locking it? For example, you can add or delete columns, create or destroy indexes,. i want to add column to an existing table. Profiling shows metadata locks but with short waiting times (1 sec each), and table alteration completes in around 30.

Mysql Alter table Add column in mysql table MySQL alter commands

Alter Table Without Locking Mysql It does not work to lock. using the innodb plugin, alter table statements which only add or drop secondary indexes can be done quickly,. Is there a manner to alter the table without locking it? i want to add column to an existing table. For example, you can add or delete columns, create or destroy indexes,. It does not work to lock. For mysql < 5.6 locks are required. add column runs; alter table changes the structure of a table. if your statements refer to a table by means of an alias, you must lock the table using that same alias. Profiling shows metadata locks but with short waiting times (1 sec each), and table alteration completes in around 30. From 5.6 on, and using innodb, locks are not required for many.

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