[jira] [Assigned] (ASTERIXDB-3246) CBO costing of all physical operators in a query plan

["Vijay Sarathy (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ASTERIXDB-3246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vijay Sarathy reassigned ASTERIXDB-3246:
----------------------------------------

    Assignee: Vijay Sarathy

> CBO costing of all physical operators in a query plan
> -----------------------------------------------------
>
>                 Key: ASTERIXDB-3246
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-3246
>             Project: Apache AsterixDB
>          Issue Type: Bug
>          Components: COMP - Compiler
>    Affects Versions: 0.9.6
>            Reporter: Vijay Sarathy
>            Assignee: Vijay Sarathy
>            Priority: Major
>
> In the first version of CBO, the following operators were costed:
> SELECT
> UNNEST_MAP
> DATA_SCAN
> EXCHANGE
> INNER_JOIN
> The costing of these subset of operators provides sufficient information to generate good plans for a vast majority of queries.
> The costing of the other operators (like group by, order by, limit, etc.) needs to be completed for full coverage of all the operators.



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