[ 
https://issues.apache.org/jira/browse/ARROW-17184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17569947#comment-17569947
 ] 

Dragoș Moldovan-Grünfeld commented on ARROW-17184:
--------------------------------------------------

A relevant comment - 
https://github.com/apache/arrow/pull/13541#issuecomment-1192085798

> [R] Investigate Nodes missing from ExecPlan print out
> -----------------------------------------------------
>
>                 Key: ARROW-17184
>                 URL: https://issues.apache.org/jira/browse/ARROW-17184
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: R
>            Reporter: Dragoș Moldovan-Grünfeld
>            Priority: Major
>
> Now that we can print an ExecPlan (ARROW-15016), we can investigate 
> unexpected outputs. With the following chunk of code:
> {code:r}
> mtcars %>%
>   arrow_table() %>%
>   select(mpg, wt, cyl) %>% 
>   filter(mpg > 20) %>%
>   arrange(desc(wt)) %>%
>   head(3) %>%
>   show_exec_plan()
> #> ExecPlan with 3 nodes:
> #> 2:SinkNode{}
> #>   1:ProjectNode{projection=[mpg, wt, cyl]}
> #>     0:SourceNode{}
> {code}
>  * FilterNode disappears when head/tail are involved +
>  * we do not have additional information regarding the OrderBySinkNode
>  * the entry point is a SourceNode and not a TableSourceNode



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

Reply via email to