[jira] [Created] (ARROW-15305) [js] Incorrect value returned for columns named "size"

["Bob Matcuk (Jira)" <ji...@apache.org>]

Bob Matcuk created ARROW-15305:
----------------------------------

             Summary: [js] Incorrect value returned for columns named "size"
                 Key: ARROW-15305
                 URL: https://issues.apache.org/jira/browse/ARROW-15305
             Project: Apache Arrow
          Issue Type: Bug
          Components: JavaScript
    Affects Versions: 6.0.1
            Reporter: Bob Matcuk


I discovered this issue using a row's {{toJSON()}} function. The problem is here: [https://github.com/apache/arrow/blob/fc1d7d44317b20f899928755b05a774715f27ce8/js/src/vector/row.ts#L195]

When {{field.name}} is "size", {{this["size"]}} will return the value of the size property on the Row instead of the value of the column. I fixed it locally by changing the values function to:
{code:java}
public *values() {
    for (const field of this[kParent].type.children) {
        yield (this as RowLike<T>)[this[kKeyToIdx].get(field.name)];
    }
}{code}
 



--
This message was sent by Atlassian Jira
(v8.20.1#820001)