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https://issues.apache.org/jira/browse/METAMODEL-172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14729055#comment-14729055
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ASF GitHub Bot commented on METAMODEL-172:
------------------------------------------
GitHub user LosD opened a pull request:
https://github.com/apache/metamodel/pull/48
Use missing and exists filters for null comparisons.
This will make isNull() and isNotNull() work. They failed before, as a term
query, which does not support null values, was used. A test was also
un-ignored; It was ignored as it used to fail, but the fix for METAMODEL-172
fixed the test as well.
Fixes METAMODEL-184
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/LosD/metamodel master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/metamodel/pull/48.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #48
----
commit 053c34684f6f46948bc3ad3a71a5a366ac9526f8
Author: Dennis Du Krøger <[email protected]>
Date: 2015-09-03T13:41:44Z
Use missing and exists filters for null comparisons.
This will make isNull() and isNotNull() work. They failed before, as a
term query, which does not support null values, was used. A test was
also un-ignored; It was ignored as it used to fail, but the fix
for METAMODEL-172 fixed the test as well.
----
> ElasticSearch Date types should be converted properly
> -----------------------------------------------------
>
> Key: METAMODEL-172
> URL: https://issues.apache.org/jira/browse/METAMODEL-172
> Project: Apache MetaModel
> Issue Type: Bug
> Reporter: Alberto
> Assignee: Alberto
> Priority: Critical
>
> When working with ElasticSearch indexes that contains Date types the API is
> returning Strings instead of proper Date object.
> We should add some logic inside the ElasticSearchUtils createRow() method to
> convert these strings to java.Date objects. As we are not doing this
> conversion so far the TimeComparator convertFromString method is not able to
> parse the string value as a Date, the method returns null and then the
> FormatHelper class is throwing an IllegalStateException.
> This is a bit tricky though because the number of date formats supported by
> ElasticSearch is quite big to think about creating a SimpleDateFormat to
> support every single case:
> https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-date-format.html
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