# Failure when attempting to filter samples

**URL:** <https://forum.qiime2.org/t/failure-when-attempting-to-filter-samples/1189>\
**Category:** User Support\
**Tags:** sql, filtering\
**Created:** [September 8, 2017, 6:24pm UTC](https://forum.qiime2.org/t/failure-when-attempting-to-filter-samples/1189 "2017-09-08T18:24:09Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![ebolyen](https://forum.qiime2.org/user_avatar/forum.qiime2.org/ebolyen/32/11_2.png) [@ebolyen](https://forum.qiime2.org/u/ebolyen)\
**Post date:** [February 16, 2018, 4:05pm UTC](https://forum.qiime2.org/t/failure-when-attempting-to-filter-samples/1189/9 "2018-02-16T16:05:04Z")

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In [QIIME 2 2018.2](https://forum.qiime2.org/t/qiime-2-2018-2-release-is-now-live/3063) this error now indicates that some of the columns may be reserved names (providing a URL to check) and suggests quoting them.

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_[View the full topic](https://forum.qiime2.org/t/failure-when-attempting-to-filter-samples/1189)._