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https://issues.apache.org/jira/browse/FLINK-24882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17442621#comment-17442621
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Moses commented on FLINK-24882:
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[~airblader] I agree with you that quoted-values are case-sensitive is a fair
expectation. But ignoring case-sensitive in some general identifier value for
'connector' and 'format' will make SQL Client easier to use.
> Make SQL format identifier NOT case-sensitive.
> ----------------------------------------------
>
> Key: FLINK-24882
> URL: https://issues.apache.org/jira/browse/FLINK-24882
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Client
> Affects Versions: 1.13.2
> Reporter: Moses
> Priority: Major
>
> If I use upper-case format identifier like below:
> {code:java}
> CREATE TABLE t_table_1 (a INT) WITH (..., 'format' = 'JSON', ...)
> {code}
> Then I got `Could not find factory ...` exception.
> {panel}
> [ERROR] Could not execute SQL statement. Reason:
> org.apache.flink.table.api.ValidationException: Could not find any factory
> for identifier 'JSON' that implements
> 'org.apache.flink.table.factories.DeserializationFormatFactory' in the
> classpath.
> Available factory identifiers are:
> avro
> canal-json
> csv
> debezium-json
> json
> maxwell-json
> raw
> {panel}
> And this can be fix with comparing them ignoring case.
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