# How to Fix Index and Column Creation Timeouts

When CopyStorm adds a new column to an existing database table or indexes a new column the operation may have timeout issues if the table has a large number rows. This article describes how to solve this problem by increasing the amount of time CopyStorm will wait for a DDL operation to complete.

The parameter that controls how long CopyStorm will wait for an ALTER TABLE ADD/ALTER COLUMN, CREATE INDEX, or any other DDL type operation is kept in the [Database Networking](https://learn.capstorm.com/reference/configuration-tab/database-networking) section of the Configuration tab.

The default DDL Timeout Parameter is 3600 seconds so set the value to a much larger value.

![](https://4057376488-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FsbSqfKw3vSfr8qwXao4j%2Fuploads%2Fgit-blob-ca1c51bd3c639917aee04993871247a0d35f4992%2F4fc71f32-Set-DDL-Timeout.png?alt=media)


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