# Is it possible to force use Int32, instead of Int64

**URL:** <https://discourse.julialang.org/t/is-it-possible-to-force-use-int32-instead-of-int64/41179>\
**Category:** Performance\
**Tags:** memory\
**Created:** [June 11, 2020, 3:58am UTC](https://discourse.julialang.org/t/is-it-possible-to-force-use-int32-instead-of-int64/41179 "2020-06-11T03:58:48Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![stillyslalom](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stillyslalom/32/45687_2.png) [@stillyslalom](https://discourse.julialang.org/u/stillyslalom)\
**Post date:** [June 11, 2020, 4:36am UTC](https://discourse.julialang.org/t/is-it-possible-to-force-use-int32-instead-of-int64/41179/8 "2020-06-11T04:36:42Z")

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I think the question is motivated by the memory limitations exposed in this thread:

> [@Why DataFrames v.0.21.2 (julia v1.4.2) requires more memory than the previous version](https://discourse.julialang.org/t/why-dataframes-v-0-21-2-julia-v1-4-2-requires-more-memory-than-the-previous-version/41171/11):
>
> much of columns is int64. Oh, I understand. csv has a char, int64 is twice large.!!!

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