Following instructions on this page https://docs.intersystems.com/latest/csp/docbook/Doc.View.cls?KEY=D2IMP… I am trying to create a Data Connector to be used as a base class for a cube with update support.
That page suggests that putting an SQL query inside XData block is not suitable for a Data Connector that supports updates.
Later it also suggests that to enable updates your SQL query must include
WHERE $$$RESTRICT
Providing an example of it in XData block example like this
<sql>SELECT A,B,C FROM MyApp.MyTable WHERE $$$RESTRICT</sql>



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