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Posted to commits@beam.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2017/04/23 05:53:04 UTC
[jira] [Commented] (BEAM-2018) refine expression of Calcite
method/function
[ https://issues.apache.org/jira/browse/BEAM-2018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15980278#comment-15980278 ]
ASF GitHub Bot commented on BEAM-2018:
--------------------------------------
GitHub user XuMingmin opened a pull request:
https://github.com/apache/beam/pull/2656
[BEAM-2018] refine expression of Calcite method/function
In this PR, `BeamSQLFnExecutor` is introduced to replace `BeamSQLSpELExecutor`, as the executor of `SqlOperator` expressions.
Several common operators are added here as reference, more are needed to cover all operators defined in `org.apache.calcite.sql.fun.SqlStdOperatorTable`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/XuMingmin/beam BEAM-2018
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/beam/pull/2656.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 #2656
----
commit 3ce5f7bae2b5a7e13c9dd2abf9d4111739540175
Author: mingmxu <mi...@ebay.com>
Date: 2017-04-23T05:20:25Z
redesign BeamSqlExpression to execute Calcite SQL expression.
----
> refine expression of Calcite method/function
> --------------------------------------------
>
> Key: BEAM-2018
> URL: https://issues.apache.org/jira/browse/BEAM-2018
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql
> Reporter: Xu Mingmin
> Assignee: Xu Mingmin
>
> https://calcite.apache.org/docs/reference.html list the method/functions that are supported in Calcite SQL statements.
> In this task, it defines an interface on how to mapping SQL expressions(with method/functions, and those without like direct-field reference) into a Java expression that can be evaluated against row records.
> --It's supposed to replace the reference implementation {{BeamSQLSpELExecutor}} for better capability.
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