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what kind of expression should be put in subscribe(self, topic, callback, expression='*') #145

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what kind of expression should be put in subscribe(self, topic, callback, expression='*')#145

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@ys270
ys270
opened on Oct 20, 2023

I want to use SQL in expression to filter message properties when consuming messages, but it seems that I cannot get the messages I want.
I put "Tag=test AND creator=xx" in expression and I want to filter messages with tag test and property {creator=xx}. How should I get this done?

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  1. ifplusor commented on Oct 20, 2023

    @ifplusor
    ifplusor
    on Oct 20, 2023
    Contributor

    It only supports "||" in expression at present.

  2. ys270 commented on Oct 23, 2023

    @ys270
    ys270
    on Oct 23, 2023
    Author

    thanks, do you plan to support others in the future?

  3. ifplusor commented on Nov 1, 2023

    @ifplusor
    ifplusor
    on Nov 1, 2023
    Contributor

    There is no plan in the c++ client. Maybe you can look at the new client project.

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