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https://issues.apache.org/jira/browse/ROCKETMQ-121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15977814#comment-15977814
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ASF GitHub Bot commented on ROCKETMQ-121:
-----------------------------------------
Github user lizhanhui commented on the issue:
https://github.com/apache/incubator-rocketmq/pull/82
@zhouxinyu I have checked the major data flow and it looks good to me. I
have not scrutinized the changes line by line yet. You may merge it first and
we may discuss potential issues hereafter.
> Support message filtering based on SQL92
> ----------------------------------------
>
> Key: ROCKETMQ-121
> URL: https://issues.apache.org/jira/browse/ROCKETMQ-121
> Project: Apache RocketMQ
> Issue Type: Wish
> Components: rocketmq-client, rocketmq-store
> Reporter: yukon
> Assignee: Eric Liu
> Priority: Minor
> Fix For: 4.1.0-incubating
>
>
> So far, RocketMQ only support message filtering feature by `TAG`, but one
> message only can own one tag, this is too limited to meet complex business
> requirements.
> So, we want to define and implement a reasonable filter language based on a
> subset of the SQL 92 expression syntax to support customized message
> filtering.
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