[ https://issues.apache.org/jira/browse/ARROW-3329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17075915#comment-17075915 ]
Jacek Pliszka edited comment on ARROW-3329 at 4/5/20, 7:57 PM: --------------------------------------------------------------- Added python tests to my branch - waiting for tests to finish - when they are OK I will raise pull request. [https://github.com/JacekPliszka/arrow/tree/ARROW-3329] However there are 3 issues left that I would like to postpone for later: * python cast does not distinguish between truncation and overflow * no overflow implemented for decimal to decimal cast * cast while constructing is still failing But overall I believe it works fine so I am for including it in 0.17.0 and fixing above later. was (Author: jacek.pliszka): Added some corrections to my branch - waiting for tests to finish - when they are OK I will raise pull request. https://github.com/JacekPliszka/arrow/tree/ARROW-3329 > [Python] Error casting decimal(38, 4) to int64 > ---------------------------------------------- > > Key: ARROW-3329 > URL: https://issues.apache.org/jira/browse/ARROW-3329 > Project: Apache Arrow > Issue Type: Bug > Components: Python > Environment: Python version : 3.6.5 > Pyarrow version : 0.10.0 > Reporter: Kavita Sheth > Assignee: Jacek Pliszka > Priority: Major > Labels: pull-request-available > Fix For: 1.0.0 > > Time Spent: 7h 20m > Remaining Estimate: 0h > > Git issue LInk : https://github.com/apache/arrow/issues/2627 > I want to cast pyarrow table column from decimal(38,4) to int64. > col.cast(pa.int64()) > Error: > File "pyarrow/table.pxi", line 443, in pyarrow.lib.Column.cast > File "pyarrow/error.pxi", line 89, in pyarrow.lib.check_status > pyarrow.lib.ArrowNotImplementedError: No cast implemented from decimal(38, > 4) to int64 > Python version : 3.6.5 > Pyarrow version : 0.10.0 > is it not implemented yet or I am not using it correctly? If not implemented > yet, then any work around to cast columns? -- This message was sent by Atlassian Jira (v8.3.4#803005)