# KDB-X for parquet conversion **URL:** \ **Category:** Community Support\ **Tags:** kdb-x\ **Created:** [August 28, 2025, 12:12pm UTC](https://forum.kx.com/t/kdb-x-for-parquet-conversion/15228 "2025-08-28T12:12:14Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![aishwarya](https://sea2.discourse-cdn.com/flex002/user_avatar/forum.kx.com/aishwarya/32/128_2.png) [@aishwarya](https://forum.kx.com/u/aishwarya)\ **Post date:** [August 28, 2025, 12:12pm UTC](https://forum.kx.com/t/kdb-x-for-parquet-conversion/15228/1 "2025-08-28T12:12:14Z")
Does KDB-x natively support KDB table to parquet conversion? Also, is it possible to install arrowkdb on top of KDB-X? We are trying to convert KDB tables into parquet format, please suggest here. ---
**Author:** ![rocuinneagain](https://sea2.discourse-cdn.com/flex002/user_avatar/forum.kx.com/rocuinneagain/32/287_2.png) [@rocuinneagain](https://forum.kx.com/u/rocuinneagain)\ **Post date:** [August 28, 2025, 1:01pm UTC](https://forum.kx.com/t/kdb-x-for-parquet-conversion/15228/2 "2025-08-28T13:01:21Z")
Native Parquet support is on the [KDB-X Roadmap](https://docs.kx.com/public-preview/kdb-x/Releases/kdb-x-roadmap.htm#NativeParquetOpenTableFormatsIntegration) and will be released soon. For now you can still use [arrowkdb](https://github.com/KxSystems/arrowkdb) in a KDB-X process. ```q /Create a sample table q)n:5 q)tl:"jsdtfi"!(n;`5;.z.d;.z.t;"f"$n;"i"$n) q)ct:"jsdt" q)gt:{flip (`$"col_",/:string til count x)!{n?tl x}each x} q)t:gt ct /Write it to a parquet file q)\l arrowkdb.q q)parquet_write_options:(enlist `PARQUET_VERSION)!(enlist `V2.0) q).arrowkdb.pq.writeParquetFromTable["inferred_schema.parquet";t;parquet_write_options] /Read the parquet file back q)new_table:.arrowkdb.pq.readParquetToTable["inferred_schema.parquet";::] ``` ---
**Author:** ![aishwarya](https://sea2.discourse-cdn.com/flex002/user_avatar/forum.kx.com/aishwarya/32/128_2.png) [@aishwarya](https://forum.kx.com/u/aishwarya)\ **Post date:** [August 29, 2025, 5:45am UTC](https://forum.kx.com/t/kdb-x-for-parquet-conversion/15228/3 "2025-08-29T05:45:20Z")
Thanks, As per [GitHub - KxSystems/arrowkdb: kdb+ integration with Apache Arrow and Parquet](https://github.com/KxSystems/arrowkdb) the installation of arrowkdb requires QHOME location which should contain a q.k file. Currently in KDB-x inside the .kx folder we are not able to find the q.k file Loading arrowkdb.q using \l throws the following error. Could you please help with the steps for installing arrowkdb on kdb-x, with the pre-requisites specified (including licenses if any)? ![image](https://us1.discourse-cdn.com/flex002/uploads/kx/original/1X/b6b386d59bbcfa91ce4a4f504f86b03c17cf4529.png) ---
**Author:** ![rocuinneagain](https://sea2.discourse-cdn.com/flex002/user_avatar/forum.kx.com/rocuinneagain/32/287_2.png) [@rocuinneagain](https://forum.kx.com/u/rocuinneagain)\ **Post date:** [August 29, 2025, 7:47am UTC](https://forum.kx.com/t/kdb-x-for-parquet-conversion/15228/4 "2025-08-29T07:47:37Z")
With QHOME not being used by default and a slightly different folder structure you can copy the two needed files manually: ```bash mkdir arrowkdb cd arrowkdb wget https://github.com/KxSystems/arrowkdb/releases/download/1.4.1-rc.1/arrowkdb-linux-1.4.1-rc.1.tgz tar -xvzf arrowkdb-linux-1.4.1-rc.1.tgz mkdir ~/.kx/l64 cp lib/arrowkdb.so ~/.kx/l64/ cp q/arrowkdb.q ~/.kx/q/ ``` ---
**Author:** ![aishwarya](https://sea2.discourse-cdn.com/flex002/user_avatar/forum.kx.com/aishwarya/32/128_2.png) [@aishwarya](https://forum.kx.com/u/aishwarya)\ **Post date:** [August 29, 2025, 8:39am UTC](https://forum.kx.com/t/kdb-x-for-parquet-conversion/15228/5 "2025-08-29T08:39:41Z")
Many thanks for your prompt response. I have tried the above steps, now i see error as libarrow.so not being available. Any suggestions in getting this resolved? Please advise ![image](https://us1.discourse-cdn.com/flex002/uploads/kx/original/1X/e6544acb6bc1fbe08ed6c8861c92e5a1bd8e552d.png) ---
**Author:** ![rocuinneagain](https://sea2.discourse-cdn.com/flex002/user_avatar/forum.kx.com/rocuinneagain/32/287_2.png) [@rocuinneagain](https://forum.kx.com/u/rocuinneagain)\ **Post date:** [August 29, 2025, 9:23am UTC](https://forum.kx.com/t/kdb-x-for-parquet-conversion/15228/6 "2025-08-29T09:23:19Z")
[Third party library installation](https://github.com/KxSystems/arrowkdb/blob/main/README.md#third-party-library-installation) is needed. It directs you to the Apache site [here](https://arrow.apache.org/install/#c-and-glib-c-packages-for-debian-gnulinux-ubuntu-and-centos). For me on Ubuntu 20.04 I needed to run line by line: ```q sudo apt update sudo apt install -y -V ca-certificates lsb-release wget wget https://packages.apache.org/artifactory/arrow/$(lsb_release --id --short | tr 'A-Z' 'a-z')/apache-arrow-apt-source-latest-$(lsb_release --codename --short).deb sudo apt install -y -V ./apache-arrow-apt-source-latest-$(lsb_release --codename --short).deb sudo apt update sudo apt install -y -V libarrow-dev=9.0.0-1 sudo apt install -y -V libparquet-dev=9.0.0-1 ``` Now the library runs on this new VM: ```bash $ q KDB-X 0.1.0 2025.06.25 Copyright (C) 1993-2025 Kx Systems l64/ 8()core 7862MB ****** 127.0.1.1 EXPIRE 2025.09.30 ***@***.com COMMUNITY #*** Welcome to KDB-X Community Edition! For Community support, please visit https://kx.com/slack Tutorials can be found at https://github.com/KxSystems/tutorials Ready to go beyond the Community Edition? Email preview@kx.com q)\l arrowkdb.q q)n:5 q)tl:"jsdtfi"!(n;`5;.z.d;.z.t;"f"$n;"i"$n) q)ct:"jsdt" q)gt:{flip (`$"col_",/:string til count x)!{n?tl x}each x} q)t:gt ct q)parquet_write_options:(enlist `PARQUET_VERSION)!(enlist `V2.0) q).arrowkdb.pq.writeParquetFromTable["inferred_schema.parquet";t;parquet_write_options] q)new_table:.arrowkdb.pq.readParquetToTable["inferred_schema.parquet";::] q)new_table col_0 col_1 col_2 col_3 ------------------------------------- 4 "jecpa" 2004.02.01 05:18:45.828 0 "kfmoh" 2010.12.20 02:25:54.221 2 "lkklc" 2009.05.09 01:53:10.321 1 "kfifp" 2016.09.30 05:15:26.418 2 "fglgo" 2017.09.06 01:05:42.696 ```