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https://issues.apache.org/jira/browse/IGNITE-5572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16100917#comment-16100917
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ASF GitHub Bot commented on IGNITE-5572:
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GitHub user alexpaschenko opened a pull request:
https://github.com/apache/ignite/pull/2344
IGNITE-5572
ALTER TABLE ADD COLUMN
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gridgain/apache-ignite ignite-5572
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/ignite/pull/2344.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2344
----
commit 5ccc0e250e91f662fe012bd2c000d67974582b19
Author: Alexander Paschenko <[email protected]>
Date: 2017-07-19T19:00:47Z
IGNITE-5572 ALTER TABLE ADD COLUMN parsing
commit 1602c29f1e4c73f6b926da12f1ad944564529acc
Author: Alexander Paschenko <[email protected]>
Date: 2017-07-25T15:37:48Z
IGNITE-5572 ALTER TABLE ADD COLUMN (no tests)
commit 4a6b39c1f93676f45a3ab0da9b39ec691357a547
Author: Alexander Paschenko <[email protected]>
Date: 2017-07-25T20:51:43Z
IGNITE-5572 First ALTER TABLE ADD COLUMN tests
commit e15e7da7914dd6f73e7bd995bbf4ff166c1e24c3
Author: Alexander Paschenko <[email protected]>
Date: 2017-07-25T22:49:27Z
IGNITE-5572 Minors
commit 4f26e00dc48af1d50c08adb683d6006b590cea9e
Author: Alexander Paschenko <[email protected]>
Date: 2017-07-25T22:57:35Z
Merge remote-tracking branch 'apache/master' into ignite-5572
----
> DDL: Support ALTER TABLE ADD COLUMN
> -----------------------------------
>
> Key: IGNITE-5572
> URL: https://issues.apache.org/jira/browse/IGNITE-5572
> Project: Ignite
> Issue Type: Task
> Components: sql
> Reporter: Vladimir Ozerov
> Assignee: Alexander Paschenko
> Fix For: 2.2
>
>
> We should start gradual implementation of {{ALTER TABLE}} command. Let's
> start with the most simple part - {{ADD COLUMN}}. Proposed design:
> 1) Send a message over a ring, similar to how we do that for create index
> 2) On local node: update relevant QueryEntity, update data strcutrues in
> {{GridQueryProcessor}}, update {{IgniteH2Indexing}} data structures, execute
> {{ALTER TABLE}} command on H2 database (global table lock must be acquired).
> 3) Make sure that update to {{QueryEntity}} is properly saved if persistence
> is enabled.
> Feature should be covered with tests thoroughly:
> 1) Positive cases
> 2) Negative cases (no schema, no table, column already exists)
> 3) Test with concurrent SQL operations
> 4) Test with concurrent node restarts
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