Magento 2 How can declare table in config.xml

Question

I want to declare table in config.xml I am put but that is not working

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Store:etc/config.xsd">
    <global>
        <models>
            <pwa_pay>
                <class>Pwa\Pay\Model</class>
                <resourceModel>Pwa\Pay\Model\ResourceModel</resourceModel>
            </pwa_pay>
            <pwa_pay_resource>
                <class>Pwa\Pay\Model\ResourceModel</class>
                <entities>
                    <demotable>
                        <table>demo_table</table>
                    </demotable>
                </entities>
            </pwa_pay_resource>
        </models>

    </global> 

how can call in setup and modle in magento 2

And how can call in setup and model please see: Magento 2 getTable behavior

Answer 1

in magento2 we are not using any table in config.xml , in m2 config.xml is used for set default value , and also no where we are mention resources tag in xml just directly call the model and collection factory based on init it will generate the collection