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From yjshen <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-3754][Table]Add a validation phase befo...
Date Wed, 20 Apr 2016 14:42:41 GMT
GitHub user yjshen opened a pull request:


    [FLINK-3754][Table]Add a validation phase before construct RelNode using TableAPI

    This PR aims at adding an extra phase of **validation** for plans generated from Table
API, matches the functionality of Calcite's Validator that are called during we execute an
query expressed in SQL String.
    In order to do this, I inserted a new layer between TableAPI and `RelNode` construction:
The `Logical Plan`.
    And the main procedure of validation and RelNode construction work as follows:
    1. Constructing logical plan in flight
    2. When we are about to execute the plan:
    3. Do resolution using table/dataset/datastream schema
    4. Do validation on the type annotated logical plan tree
    5. Translate logical plan into `RelNode` once we successfully finished validation.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/yjshen/flink extra_validation

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1916
commit 7fb102af1fa52dab2f0c80785f75bf7e0d8a7062
Author: Yijie Shen <henry.yijieshen@gmail.com>
Date:   2016-04-13T08:46:58Z

    make TreeNode extends Product

commit ab75d4857cb203714ee037aea2e55de776c4dd32
Author: Yijie Shen <henry.yijieshen@gmail.com>
Date:   2016-04-15T14:51:20Z

    wip expressions validation, should create expressions for functions next

commit 61e4bb09d754fe0aca7624e3fcd70d364e4154d3
Author: Yijie Shen <henry.yijieshen@gmail.com>
Date:   2016-04-16T07:02:07Z

    add functions for math and string

commit 6abbfad0a11a3874150baa4dcabf6caab37cf0be
Author: Yijie Shen <henry.yijieshen@gmail.com>
Date:   2016-04-18T16:49:04Z

    wip move table api on logicalNode

commit 64ecdbef273895e4527fb6b5120d92acb0d20542
Author: Yijie Shen <henry.yijieshen@gmail.com>
Date:   2016-04-19T05:20:47Z

    resolve and validate next

commit dc42a44cc47cdb619076074eda95b84157554337
Author: Yijie Shen <henry.yijieshen@gmail.com>
Date:   2016-04-19T19:26:58Z


commit c04292abe6484e095171a66c399c16e50e98870a
Author: Yijie Shen <henry.yijieshen@gmail.com>
Date:   2016-04-20T12:26:25Z

    fix bug in validator, merge eval, add doc


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