CountPLpgSQLStmt parses the function body and calls the Walk function for each plpgsql statement.

MakePLpgSQLTelemetryVisitor makes a plpgsql telemetry visitor, for capturing test telemetry.

SQLStmtVisitor calls Fn for every SQL statement and expression found while walking the PLpgSQL AST.

TypeRefVisitor calls the given replace function on each type reference contained in the visited PLpgSQL statements.

PLpgSQLStmtCounter is used to accurately report telemetry for plpgsql statements test .