Thread

Extend injection_points_attach() to accept a user-defined function

Rahila Syed <rahilasyed90@gmail.com> — 2025-10-28T12:41:25Z

Hi,

I would like to propose providing a sql interface to link a
user-defined function to an injection point.
Currently, if a user wants an injection point to invoke a custom
function, they must first define an SQL
function that attaches the injection point to the target/custom
function. This SQL function can then be called
in sql tests to attach to the injection point before running the tests.

The attached patch simplifies this by extending the
injection_points_attach() function to support a new
action type called "func".
The new "func" action enables users to attach a user-defined function
to an injection point.
When "func" is specified as action, the caller must provide:

1. the module name

2. the function name

as additional arguments to injection_points_attach(). These arguments
default to NULL when the
action is not "func".
This approach aims to simplify the process of assigning user-defined
functions to injection points,
eliminating the need to create separate SQL functions to attach each
injection point individually.

Thank you,
Rahila Syed