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https://issues.apache.org/jira/browse/DRILL-6717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16595825#comment-16595825
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ASF GitHub Bot commented on DRILL-6717:
---------------------------------------
Ben-Zvi commented on a change in pull request #1450: DRILL-6717: lower and
upper functions not works with national characters
URL: https://github.com/apache/drill/pull/1450#discussion_r213520981
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/StringFunctions.java
##########
@@ -529,7 +538,16 @@ public void eval() {
Review comment:
Isn't this too complicated ? I tried and changed this code by adding here:
```
String orig = new String(buffer.unsafeGetMemory(0,out.end));
String upp = orig.toUpperCase(/*Locale.GERMAN*/);
buffer.setBytes(0,upp.getBytes(),0,out.end);
```
and then commented out the whole following *for* loop, and the test passed!
(not sure which one performs better)
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> lower and upper functions not works with national charactes
> -----------------------------------------------------------
>
> Key: DRILL-6717
> URL: https://issues.apache.org/jira/browse/DRILL-6717
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.14.0, 1.15.0
> Reporter: Oleg Zinoviev
> Assignee: Oleg Zinoviev
> Priority: Major
> Attachments: result.csv, sample.json
>
>
> upper() and lower() functions works only with a ascii characters.
> sample dataset: [^sample.json]
> query:
> {code:sql}
> select
> upper(ascii_l) as upper_ascii,
> upper(national_l) as upper_national,
> lower(ascii_u) as lower_ascii,
> lower(national_u) as lower_national
> from dfs.`sample.json`
> {code}
> drill response: [^result.csv]
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