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Posted to issues@metron.apache.org by "Josh Meyer (JIRA)" <ji...@apache.org> on 2017/07/21 21:05:00 UTC
[jira] [Updated] (METRON-1057) Add ZIP_WITH and ZIP_WITH_INDEX
Functions in Stellar
[ https://issues.apache.org/jira/browse/METRON-1057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Josh Meyer updated METRON-1057:
-------------------------------
Description:
In addition to the new `ZIP` functions in Stellar, we should add a `ZIP_WITH` and `ZIP_WITH_INDEX` functions. These have been implemented in other languages (Haskell). Below are examples of these functions.
```
ZIP_WITH([1, 2, 3], [1, 2, 3], (a, b) -> a + b) == [2, 4, 6]
ZIP_WITH_INDEX([1, 2, 3]) == [[0,1], [1,2], [2,3]]
```
This was discussed shortly on this PR https://github.com/apache/metron/pull/652
was:
In addition to the new `ZIP` functions in Stellar, we should add a `ZIP_WITH` and `ZIP_WITH_INDEX` functions. These have been implemented in other languages (Haskell). Below are examples of these functions.
```
ZIP_WITH([1, 2, 3], [1, 2, 3], (a, b) -> a + b) == [2, 4, 6]
ZIP_WITH_INDEX([1, 2, 3]) == [[0,1], [1,2], [2,3]]
```
> Add ZIP_WITH and ZIP_WITH_INDEX Functions in Stellar
> ----------------------------------------------------
>
> Key: METRON-1057
> URL: https://issues.apache.org/jira/browse/METRON-1057
> Project: Metron
> Issue Type: New Feature
> Reporter: Josh Meyer
>
> In addition to the new `ZIP` functions in Stellar, we should add a `ZIP_WITH` and `ZIP_WITH_INDEX` functions. These have been implemented in other languages (Haskell). Below are examples of these functions.
> ```
> ZIP_WITH([1, 2, 3], [1, 2, 3], (a, b) -> a + b) == [2, 4, 6]
> ZIP_WITH_INDEX([1, 2, 3]) == [[0,1], [1,2], [2,3]]
> ```
> This was discussed shortly on this PR https://github.com/apache/metron/pull/652
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