# JDBC tracking a string column for unique ingestion

**URL:** <https://discuss.elastic.co/t/jdbc-tracking-a-string-column-for-unique-ingestion/108662>\
**Category:** Logstash\
**Created:** [November 22, 2017, 7:37am UTC](https://discuss.elastic.co/t/jdbc-tracking-a-string-column-for-unique-ingestion/108662 "2017-11-22T07:37:00Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [November 22, 2017, 8:43am UTC](https://discuss.elastic.co/t/jdbc-tracking-a-string-column-for-unique-ingestion/108662/6 "2017-11-22T08:43:17Z")

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You need to change the condition to `strictly greater than` and make sure that you sort in ascending order. If you keep `<>` I would expect almost all (except the last timestamp) September data to be reloaded.

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