[jira] [Updated] (ARROW-15820) [C++][Doc] Add table_source to streaming_execution.rst & clarify parameter name

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-15820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-15820:
-----------------------------------
    Labels: pull-request-available  (was: )

> [C++][Doc] Add table_source to streaming_execution.rst & clarify parameter name
> -------------------------------------------------------------------------------
>
>                 Key: ARROW-15820
>                 URL: https://issues.apache.org/jira/browse/ARROW-15820
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Weston Pace
>            Assignee: Vibhatha Lakmal Abeykoon
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Currently the table_source node does not appear in our documentation.
> Also, in {{TableSourceNodeOptions}} we have:
> {noformat}
>   // Size of batches to emit from this node
>   // If the table is larger the node will emit multiple batches from the
>   // the table to be processed in parallel.
>   int64_t batch_size;
> {noformat}
> However, when looking into a performance issue today, I realized this description is incomplete.  In reality we should probably call this parameter {{max_batch_size}}.
> Furthermore, we should make it clear that a table with smaller batches will emit smaller batches directly (this is a good thing in my case) and will not concatenate small batches together into a larger batch.



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