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PostgreSQL support for bulk alter table

#6378

Bulk alter table allows to do multiple schema changes using one statement. This is both atomic and more efficient than traditional method.

@@@sql
ALTER TABLE users ADD COLUMN verified_at TIMESTAMP;
ALTER TABLE users ALTER COLUMN failed_logins SET DEFAULT 0;

VS

@@@sql
ALTER TABLE users ADD COLUMN verified_at TIMESTAMP, ALTER COLUMN failed_logins SET DEFAULT 0;

The patch is based on recently commited MySQL bulk alter table.
Unlinke MySQL, PostgreSQL doesn't support adding/removing indexes inside ALTER TABLE so that feature was disabled for PostgreSQLAdapter.

Reported by Michał Łomnicki · February 5th, 2011 @ 07:55 PM

State: stale
Milestone: none
Assigned to: Pratik Pratik
Importance: Low

Activity

  1. Pratik
    Pratik
    • Assigned user set to Pratik
    • Importance changed from to Low

    February 6th, 2011 @ 08:49 PM

  2. rails
    rails
    • State changed from new to open

    This issue has been automatically marked as stale because it has not been commented on for at least three months.

    The resources of the Rails core team are limited, and so we are asking for your help. If you can still reproduce this error on the 3-0-stable branch or on master, please reply with all of the information you have about it and add "[state:open]" to your comment. This will reopen the ticket for review. Likewise, if you feel that this is a very important feature for Rails to include, please reply with your explanation so we can consider it.

    Thank you for all your contributions, and we hope you will understand this step to focus our efforts where they are most helpful.

    May 7th, 2011 @ 01:00 AM

  3. rails
    rails
    • State changed from open to stale

    May 7th, 2011 @ 01:00 AM