[jira] [Commented] (ASTERIXDB-1174) Allow for more complex nested plans

["Steven Jacobs (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ASTERIXDB-1174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15394426#comment-15394426 ] 

Steven Jacobs commented on ASTERIXDB-1174:
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This is actually a hard-coded problem. Unfortunately I don't have any queries that I know of to produce the message, but I know where the codebase performs the check. Unless there is some new guarantee that opMap will not be greater than 1, the problem should still exist. It can be seen in AbstractPhysicalOperator.buildPipelineWithProjection

> Allow for more complex nested plans
> -----------------------------------
>
>                 Key: ASTERIXDB-1174
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1174
>             Project: Apache AsterixDB
>          Issue Type: Improvement
>            Reporter: Steven Jacobs
>            Assignee: Steven Jacobs
>            Priority: Minor
>
> Currently, when nested plans get too complex (such as containing joins) we get a message such as:
> Attempting to construct a nested plan with 14 operator descriptors. Currently, nested plans can only consist in linear pipelines of Asterix micro operators. [AlgebricksException]
> It would be nice if we could allow such plans



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