# New schema found. Please reattempt the query

**URL:** <https://community.dremio.com/t/new-schema-found-please-reattempt-the-query/7912>\
**Category:** Uncategorized\
**Created:** [August 26, 2021, 11:27am UTC](https://community.dremio.com/t/new-schema-found-please-reattempt-the-query/7912 "2021-08-26T11:27:54Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jitenderdheeman](https://avatars.discourse-cdn.com/v4/letter/j/b19c9b/32.png) [@jitenderdheeman](https://community.dremio.com/u/jitenderdheeman)\
**Post date:** [August 26, 2021, 11:27am UTC](https://community.dremio.com/t/new-schema-found-please-reattempt-the-query/7912/1 "2021-08-26T11:27:54Z")

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Hi  
I am getting this error while running mongodb query on dremio.

I have two dremio container on two datacenter. In one datacenter, it is working fine while in other data center it is not working and giving error  
“New schema found. Please reattempt the query. Multiple attempts may be necessary to fully learn the schema.”

Kindly do the needful

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**Author:** ![balaji.ramaswamy](https://sea2.discourse-cdn.com/flex020/user_avatar/community.dremio.com/balaji.ramaswamy/32/843_2.png) [@balaji.ramaswamy](https://community.dremio.com/u/balaji.ramaswamy)\
**Post date:** [August 30, 2021, 7:51am UTC](https://community.dremio.com/t/new-schema-found-please-reattempt-the-query/7912/2 "2021-08-30T07:51:32Z")

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@jitenderdheeman Do you have mixed types on any column on the Mongo collection?

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**Author:** ![jitenderdheeman](https://avatars.discourse-cdn.com/v4/letter/j/b19c9b/32.png) [@jitenderdheeman](https://community.dremio.com/u/jitenderdheeman)\
**Post date:** [January 6, 2022, 11:50am UTC](https://community.dremio.com/t/new-schema-found-please-reattempt-the-query/7912/3 "2022-01-06T11:50:28Z")

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yes. I have mixed types of columns

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<div class="post-metadata">

**Author:** ![balaji.ramaswamy](https://sea2.discourse-cdn.com/flex020/user_avatar/community.dremio.com/balaji.ramaswamy/32/843_2.png) [@balaji.ramaswamy](https://community.dremio.com/u/balaji.ramaswamy)\
**Post date:** [January 7, 2022, 5:37am UTC](https://community.dremio.com/t/new-schema-found-please-reattempt-the-query/7912/4 "2022-01-07T05:37:39Z")

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@jitenderdheeman  
What are the different types for the same column?