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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2020/10/07 19:10:03 UTC

[GitHub] [arrow] bmschmidt opened a new pull request #8385: fix toArray() to handle null values

bmschmidt opened a new pull request #8385:
URL: https://github.com/apache/arrow/pull/8385


   Remove fast method that ignores null values. JIRA issued filed. A better version might use the old method if the vector is guaranteed not to be nullable.


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[GitHub] [arrow] domoritz commented on pull request #8385: ARROW-10220 [Javascript] Javascript toArray() method ignores nulls on some types.

Posted by GitBox <gi...@apache.org>.
domoritz commented on pull request #8385:
URL: https://github.com/apache/arrow/pull/8385#issuecomment-826370150


   Yes, I think this is https://issues.apache.org/jira/browse/ARROW-10221. @bmschmidt do you have time to finish up this pull request? 


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[GitHub] [arrow] github-actions[bot] commented on pull request #8385: ARROW-10220 [Javascript] Javascript toArray() method ignores nulls on some types.

Posted by GitBox <gi...@apache.org>.
github-actions[bot] commented on pull request #8385:
URL: https://github.com/apache/arrow/pull/8385#issuecomment-705764977


   https://issues.apache.org/jira/browse/ARROW-10220


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[GitHub] [arrow] TheNeuralBit commented on a change in pull request #8385: ARROW-10220 [Javascript] Javascript toArray() method ignores nulls on some types.

Posted by GitBox <gi...@apache.org>.
TheNeuralBit commented on a change in pull request #8385:
URL: https://github.com/apache/arrow/pull/8385#discussion_r562374331



##########
File path: js/src/visitor/toarray.ts
##########
@@ -88,18 +88,6 @@ export class ToArrayVisitor extends Visitor {}
 
 /** @ignore */
 function arrayOfVector<T extends DataType>(vector: VectorType<T>): T['TArray'] {
-
-    const { type, length, stride } = vector;
-
-    // Fast case, return subarray if possible
-    switch (type.typeId) {

Review comment:
       Instead of removing the fast case can you just add a check to skip this if the type is nullable? As you pointed out in the jira we could still do this for non-nullable arrays.




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[GitHub] [arrow] TheNeuralBit commented on a change in pull request #8385: ARROW-10220 [Javascript] Javascript toArray() method ignores nulls on some types.

Posted by GitBox <gi...@apache.org>.
TheNeuralBit commented on a change in pull request #8385:
URL: https://github.com/apache/arrow/pull/8385#discussion_r562374331



##########
File path: js/src/visitor/toarray.ts
##########
@@ -88,18 +88,6 @@ export class ToArrayVisitor extends Visitor {}
 
 /** @ignore */
 function arrayOfVector<T extends DataType>(vector: VectorType<T>): T['TArray'] {
-
-    const { type, length, stride } = vector;
-
-    // Fast case, return subarray if possible
-    switch (type.typeId) {

Review comment:
       Instead of removing the fast case can you just add a check to skip this if the type is nullable? As you pointed out in the jira we could still do this for non-nullable arrays.




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[GitHub] [arrow] domoritz closed pull request #8385: ARROW-10221: [JS] Javascript toArray() method ignores nulls on some types.

Posted by GitBox <gi...@apache.org>.
domoritz closed pull request #8385:
URL: https://github.com/apache/arrow/pull/8385


   


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[GitHub] [arrow] domoritz commented on pull request #8385: ARROW-10220 [Javascript] Javascript toArray() method ignores nulls on some types.

Posted by GitBox <gi...@apache.org>.
domoritz commented on pull request #8385:
URL: https://github.com/apache/arrow/pull/8385#issuecomment-826371892


   Can you change the title to `ARROW-10220: [JS] toArray() method ignores nulls on some types` so that the correct label `lang-js` is added to the pull request? 


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[GitHub] [arrow] github-actions[bot] commented on pull request #8385: ARROW-10221: [JS] Javascript toArray() method ignores nulls on some types.

Posted by GitBox <gi...@apache.org>.
github-actions[bot] commented on pull request #8385:
URL: https://github.com/apache/arrow/pull/8385#issuecomment-826931220


   https://issues.apache.org/jira/browse/ARROW-10221


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[GitHub] [arrow] github-actions[bot] commented on pull request #8385: ARROW-10220 [Javascript] Javascript toArray() method ignores nulls on some types.

Posted by GitBox <gi...@apache.org>.
github-actions[bot] commented on pull request #8385:
URL: https://github.com/apache/arrow/pull/8385#issuecomment-705764977


   https://issues.apache.org/jira/browse/ARROW-10220


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[GitHub] [arrow] github-actions[bot] commented on pull request #8385: fix toArray() to handle null values

Posted by GitBox <gi...@apache.org>.
github-actions[bot] commented on pull request #8385:
URL: https://github.com/apache/arrow/pull/8385#issuecomment-705144305


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   Thanks for opening a pull request!
   
   Could you open an issue for this pull request on JIRA?
   https://issues.apache.org/jira/browse/ARROW
   
   Then could you also rename pull request title in the following format?
   
       ARROW-${JIRA_ID}: [${COMPONENT}] ${SUMMARY}
   
   See also:
   
     * [Other pull requests](https://github.com/apache/arrow/pulls/)
     * [Contribution Guidelines - How to contribute patches](https://arrow.apache.org/docs/developers/contributing.html#how-to-contribute-patches)
   


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[GitHub] [arrow] domoritz commented on pull request #8385: ARROW-10220 [Javascript] Javascript toArray() method ignores nulls on some types.

Posted by GitBox <gi...@apache.org>.
domoritz commented on pull request #8385:
URL: https://github.com/apache/arrow/pull/8385#issuecomment-826370150






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[GitHub] [arrow] domoritz edited a comment on pull request #8385: ARROW-10221: [JS] Javascript toArray() method ignores nulls on some types.

Posted by GitBox <gi...@apache.org>.
domoritz edited a comment on pull request #8385:
URL: https://github.com/apache/arrow/pull/8385#issuecomment-1014091274


   I think this needs to be redone since the code has changed a bit. I want to make sure we make the right decision about the behavior. See https://issues.apache.org/jira/browse/ARROW-10221 for my comments. 


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[GitHub] [arrow] domoritz commented on pull request #8385: ARROW-10221: [JS] Javascript toArray() method ignores nulls on some types.

Posted by GitBox <gi...@apache.org>.
domoritz commented on pull request #8385:
URL: https://github.com/apache/arrow/pull/8385#issuecomment-1014091274


   I think this needs to be redone. I want to make sure we make the right decision about the behavior. See https://issues.apache.org/jira/browse/ARROW-10221 for my comments. 


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