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https://issues.apache.org/jira/browse/METAMODEL-172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14710982#comment-14710982
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ASF GitHub Bot commented on METAMODEL-172:
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Github user albertostratio commented on the pull request:
https://github.com/apache/metamodel/pull/43#issuecomment-134537945
@kaspersorensen as per your suggestion I moved the date parsing to the ES
module instead of using the TypeComparator class
> 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
> 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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