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https://issues.apache.org/jira/browse/AVRO-1924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15579458#comment-15579458
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Niels Basjes commented on AVRO-1924:
------------------------------------

Depending how hard this is we may opt for mentioning this in the release note 
in combination with the fact you can escape an identifier name.
In Parquet this is not a problem as this is a schema that is only used in unit 
tests.

> Variable named 'date' in IDL
> ----------------------------
>
>                 Key: AVRO-1924
>                 URL: https://issues.apache.org/jira/browse/AVRO-1924
>             Project: Avro
>          Issue Type: Bug
>            Reporter: Niels Basjes
>            Assignee: Ryan Blue
>
> I was compiling Apache Parquet and found that the switch from Avro 1.8.0 to 
> 1.8.1 broke their build.
> The error: {code}
> [ERROR] Failed to execute goal 
> org.apache.avro:avro-maven-plugin:1.8.1:idl-protocol (schemas) ... 
> org.apache.avro.compiler.idl.ParseException: Encountered " "date" "date "" at 
> line 23, column 14.
> [ERROR] Was expecting one of:
> [ERROR] <IDENTIFIER> ...
> [ERROR] "@" ...
> [ERROR] "`" ...
> [ERROR] -> [Help 1]
> {code}
> As it turns out they have a test idl that contains this:
> {code}
> @namespace("org.apache.parquet.avro")
> protocol Cars {
>     record Service {
>         long date;
>     }
> }
> {code}
> And this change AVRO-1684 turned the word 'date' into something different for 
> the idl compiler.
> So changing the word 'date' into something else fixes the problem. 
> Yet I think this is an undesirable effect for end user applications.
> [~rdblue]: I assigned this to you implemented the mentioned change.



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