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https://issues.apache.org/jira/browse/CASSGO-118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18073489#comment-18073489
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Bohdan Siryk commented on CASSGO-118:
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Thanks [~smiklosovic], I thinking the same it's very unlikely anybody relies on
that, but we still can't 100% guaranty it - sometime ago I was wondering who
uses MapScan API until I discovered that Cadence does. I think this is
applicable to this case too.
After futher duscussion in Slack (1) we're leaning to adding a new option that
toggles the correct null-encoding behavior. To prevent breaking apps it will be
disabled by default. To prevent users from using buggy-behaivior we will log a
warning on a session init, so users will be aware of it. When there is 3.x
release we will change the default behavior to the correct one.
(1) -
https://the-asf.slack.com/archives/C05LPRVNZV1/p1776158394065259?thread_ts=1775481005.996919&cid=C05LPRVNZV1
> Nil map for UDT column inserts zero-valued UDT instead of NULL
> --------------------------------------------------------------
>
> Key: CASSGO-118
> URL: https://issues.apache.org/jira/browse/CASSGO-118
> Project: Apache Cassandra Go driver
> Issue Type: Bug
> Reporter: Bohdan Siryk
> Priority: Normal
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Inserting a row with a nil map for a UDT-typed column results in a non-NULL
> value whose fields behave like defaults / zero values, instead of storing
> NULL for the whole UDT.
> *Expected*
> The UDT column is NULL in DB.
> *Actual*
> The UDT column is present (not NULL) and fields appear as type defaults
> (empty string, 0, false, etc.).
> To reproduce it, please use this code snippet on github gist:
> https://gist.github.com/worryg0d/22810cd6609cae985ca5c53725c3e3ae
> You will have the following in your C*:
> {code:java}
> cqlsh> SELECT * from gocqltest.persons ;
> id | address | name
> ----+----------------------------------+---------
> 1 | {street: 'Street', zip: '12345'} | person1
> 2 | {street: null, zip: null} | person2
> {code}
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