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Posted to issues@ignite.apache.org by "Aleksey Plekhanov (Jira)" <ji...@apache.org> on 2021/09/21 13:45:00 UTC
[jira] [Commented] (IGNITE-15128) Take own control of SQL functions
[ https://issues.apache.org/jira/browse/IGNITE-15128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17418132#comment-17418132 ]
Aleksey Plekhanov commented on IGNITE-15128:
--------------------------------------------
[~korlov], [~tledkov-gridgain], can you please have a look at the patch?
> Take own control of SQL functions
> ---------------------------------
>
> Key: IGNITE-15128
> URL: https://issues.apache.org/jira/browse/IGNITE-15128
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Reporter: Yury Gerzhedovich
> Assignee: Aleksey Plekhanov
> Priority: Major
> Labels: calcite2-required, calcite3-required
> Time Spent: 10m
> Remaining Estimate: 0h
>
> As of now, we use a set of 4 database function dialects:
> SqlLibrary.STANDARD,
> SqlLibrary.POSTGRESQL,
> SqlLibrary.ORACLE,
> SqlLibrary.MYSQL
> Seems we should have owned our dialect with a subset of the aforementioned functions and have the ability to modify already exists functions and add a new one.
> During implementation need to sort out similar functions and choose just one of them to avoid duplication,
> See :
> org.apache.calcite.util.BuiltInMethod
> org.apache.calcite.sql.fun.SqlLibraryOperators
> org.apache.calcite.runtime.SqlFunctions
> org.apache.ignite.internal.processors.query.calcite.exec.exp.RexImpTable
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