# IndexedTables and type-stability of IndexedTables.groupby

**URL:** <https://discourse.julialang.org/t/indexedtables-and-type-stability-of-indexedtables-groupby/30186>\
**Category:** New to Julia\
**Tags:** type-stability\
**Created:** [October 22, 2019, 8:05pm UTC](https://discourse.julialang.org/t/indexedtables-and-type-stability-of-indexedtables-groupby/30186 "2019-10-22T20:05:54Z")\
**Posts on this page:** 1\
**Showing post:** 9

<div class="post-metadata">

**Author:** ![bashonubuntu](https://avatars.discourse-cdn.com/v4/letter/b/f19dbf/32.png) [@bashonubuntu](https://discourse.julialang.org/u/bashonubuntu)\
**Post date:** [October 23, 2019, 11:46pm UTC](https://discourse.julialang.org/t/indexedtables-and-type-stability-of-indexedtables-groupby/30186/9 "2019-10-23T23:46:22Z")

</div>

Thanks, yes that makes sense and makes me worry less.

Out of curiosity, what is the “type-stability” of IndexedTables referred to here mean then? [Does the concept of type-stability apply to DataFrames or Tables?](https://discourse.julialang.org/t/does-the-concept-of-type-stability-apply-to-dataframes-or-tables/6434)

---

_[View the full topic](https://discourse.julialang.org/t/indexedtables-and-type-stability-of-indexedtables-groupby/30186)._