# Logstash adding additional one row

**URL:** <https://discuss.elastic.co/t/logstash-adding-additional-one-row/100747>\
**Category:** Logstash\
**Created:** [September 16, 2017, 4:54am UTC](https://discuss.elastic.co/t/logstash-adding-additional-one-row/100747 "2017-09-16T04:54:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![saafianihan](https://avatars.discourse-cdn.com/v4/letter/s/839c29/32.png) [@saafianihan](https://discuss.elastic.co/u/saafianihan)\
**Post date:** [September 16, 2017, 4:54am UTC](https://discuss.elastic.co/t/logstash-adding-additional-one-row/100747/1 "2017-09-16T04:54:10Z")

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While executing the configuration file, logstash adding one additional row with the Query result. The additional row contains the "document\_id" details. I am using "document\_id" to prevent duplication of data for every run. The duplication issue solved, but one additional row is added to the result.  
My configuration file is

input {  
jdbc {  
jdbc\_driver\_library =\> "C:/New\_ELK/logstash-5.5.2/mysql-connector-java-5.1.42/mysql-connector-java-5.1.42-bin.jar"  
jdbc\_driver\_class =\> "com.mysql.jdbc.Driver"  
jdbc\_connection\_string =\> "jdbc:mysql://localhost:3306/abc"  
jdbc\_user =\> "root"  
jdbc\_password =\> ""  
schedule =\>"\* \* \* \* \*"  
statement =\> "select [user.id](http://user.id) as user\_id, concat(user.first\_name,' ',user.last\_name) as username from user  
}  
}

output {  
elasticsearch {  
index =\> "total\_users"  
hosts =\> ["localhost:9200"]  
document\_id =\> "%{[user\_id]}"

}

stdout { codec =\> json\_lines }  
}

how to prevent adding "document\_id" details into query result?

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<div class="post-metadata">

**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [September 19, 2017, 5:42am UTC](https://discuss.elastic.co/t/logstash-adding-additional-one-row/100747/2 "2017-09-19T05:42:55Z")

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Duplicate of [Logstash adding duplicate rows in every run](https://discuss.elastic.co/t/logstash-adding-duplicate-rows-in-every-run/100453).

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<div class="post-metadata">

**Author:** ![saafianihan](https://avatars.discourse-cdn.com/v4/letter/s/839c29/32.png) [@saafianihan](https://discuss.elastic.co/u/saafianihan)\
**Post date:** [September 19, 2017, 5:57am UTC](https://discuss.elastic.co/t/logstash-adding-additional-one-row/100747/3 "2017-09-19T05:57:01Z")

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Sorry for the duplication.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [October 17, 2017, 5:57am UTC](https://discuss.elastic.co/t/logstash-adding-additional-one-row/100747/4 "2017-10-17T05:57:49Z")

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