# Events

**URL:** https://community.dremio.com/c/events/8.md

[Latest](https://community.dremio.com/latest.md) · [Categories](https://community.dremio.com/categories.md)

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## [About the Events category](https://community.dremio.com/t/about-the-events-category/7693)

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**Author:** [@balaji.ramaswamy](https://community.dremio.com/u/balaji.ramaswamy)\
**Replies:** 0

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## [FREE APACHE ICEBERG BOOK - Register for Subsurface 2024 for Free](https://community.dremio.com/t/free-apache-iceberg-book-register-for-subsurface-2024-for-free/11720)

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**Author:** [@AlexMerced](https://community.dremio.com/u/AlexMerced)\
**Replies:** 4\
**Last updated:** [April 25, 2024, 4:05pm UTC](https://community.dremio.com/t/free-apache-iceberg-book-register-for-subsurface-2024-for-free/11720 "2024-04-25T16:05:39Z")

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Register for the Subsurface Lakehouse Conference for free which will be held virtual and in-person (NYC) on May 2nd and 3rd. All registrants will receive a digital copy of Apache Iceberg: the Definitive Guide, and all w…

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## [LAST CALL: Subsurface Call for Papers 2024](https://community.dremio.com/t/last-call-subsurface-call-for-papers-2024/11291)

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**Author:** [@Kcarlsted](https://community.dremio.com/u/Kcarlsted)\
**Replies:** 0\
**Last updated:** [December 19, 2023, 6:16pm UTC](https://community.dremio.com/t/last-call-subsurface-call-for-papers-2024/11291 "2023-12-19T18:16:56Z")

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The submission deadline for \[Subsurface LIVE 2024\] is fast approaching, we want to extend a final invitation for you to submit your title and abstract. \[Subsurface\] is the industry’s premier open lakehouse conference ho…

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## [Meetup in Paris (Freance) - Open Data Lakehouse 15 février 2023 chez Criteo](https://community.dremio.com/t/meetup-in-paris-freance-open-data-lakehouse-15-fevrier-2023-chez-criteo/10254)

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**Author:** [@cclairmont](https://community.dremio.com/u/cclairmont)\
**Replies:** 1\
**Last updated:** [February 1, 2023, 7:27pm UTC](https://community.dremio.com/t/meetup-in-paris-freance-open-data-lakehouse-15-fevrier-2023-chez-criteo/10254 "2023-02-01T19:27:47Z")

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Hi folks, I am please to announce we propose with Dremio a meetup in Paris (France) this 15th of Frebrary at 18:30. The meetup is hosted at Criteo office. https://www.meetup.com/modern-data-stack-france/events/29131287…

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## [Query performance deteriorates significantly after upgrade 19.1](https://community.dremio.com/t/query-performance-deteriorates-significantly-after-upgrade-19-1/8435)

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**Author:** [@alex.shi](https://community.dremio.com/u/alex.shi)\
**Replies:** 9\
**Last updated:** [January 13, 2022, 9:08am UTC](https://community.dremio.com/t/query-performance-deteriorates-significantly-after-upgrade-19-1/8435 "2022-01-13T09:08:13Z")

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I have an SQL query on Dremio 15 that only takes 1 minute, and 5.30 minutes after upgrading to 19.1. After my analysis, I found that the number of threads displayed in the execution plan of the new version is 1/3 less th…

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## [High-performance data lake visualization with Dremio and Superset](https://community.dremio.com/t/high-performance-data-lake-visualization-with-dremio-and-superset/7694)

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**Author:** [@balaji.ramaswamy](https://community.dremio.com/u/balaji.ramaswamy)\
**Replies:** 0\
**Last updated:** [July 2, 2021, 9:20pm UTC](https://community.dremio.com/t/high-performance-data-lake-visualization-with-dremio-and-superset/7694 "2021-07-02T21:20:59Z")

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This webinar is by Brett Roberts (Twitter handle# @Bigdatabrett) hosted by Preset.io on 7/6 @10AM PDT. The webinar will be a mostly live demo of how Dremio connects to data sources and then how SuperSet connects to Drem…