[jira] [Commented] (FLINK-19002) Support to only read changelogs of specific database and table for canal-json format

["Echo Lee (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-19002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17469791#comment-17469791 ] 

Echo Lee commented on FLINK-19002:
----------------------------------

Hi [~jark]

Does this mean that each table corresponds to a Kafka connection? If I want to reuse Kafka connections, are there any other good ideas?

> Support to only read changelogs of specific database and table for canal-json format
> ------------------------------------------------------------------------------------
>
>                 Key: FLINK-19002
>                 URL: https://issues.apache.org/jira/browse/FLINK-19002
>             Project: Flink
>          Issue Type: New Feature
>          Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
>            Reporter: Jark Wu
>            Assignee: Jark Wu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.12.0
>
>
> Usually, users use Canal to synchronize binlog data from various MySQL databases and tables into a single Kafka topic. However, currently, canal-json can't support this case, because it requires the canal data in the topic should be in the same data format. 
> This issue propose to introduce a new option "canal-json.database" and "canal-json.table" to filter out the specific data. It would be great to support table list or table pattern in case of all the tables have the same schema. 



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