Method visit_delete

lib/sqlalchemy/sql/compiler.py:6500–6629

(self, delete_stmt, visiting_cte=None, **kw)

        )

    def visit_delete(self, delete_stmt, visiting_cte=None, **kw):
        compile_state = delete_stmt._compile_state_factory(
            delete_stmt, self, **kw
        )
        delete_stmt = compile_state.statement

        if visiting_cte is not None:
            kw["visiting_cte"] = visiting_cte
            toplevel = False
        else:
            toplevel = not self.stack

        if toplevel:
            self.isdelete = True
            if not self.dml_compile_state:
                self.dml_compile_state = compile_state
            if not self.compile_state:
                self.compile_state = compile_state

        if self.linting & COLLECT_CARTESIAN_PRODUCTS:
            from_linter = FromLinter({}, set())
            warn_linting = self.linting & WARN_LINTING
            if toplevel:
                self.from_linter = from_linter
        else:
            from_linter = None
            warn_linting = False

        extra_froms = compile_state._extra_froms

        correlate_froms = {delete_stmt.table}.union(extra_froms)
        self.stack.append(
            {
                "correlate_froms": correlate_froms,
                "asfrom_froms": correlate_froms,
                "selectable": delete_stmt,
            }
        )

        text = "DELETE "

        if delete_stmt._prefixes:
            text += self._generate_prefixes(
                delete_stmt, delete_stmt._prefixes, **kw
            )

        text += "FROM "

        try:
            table_text = self.delete_table_clause(
                delete_stmt,
                delete_stmt.table,
                extra_froms,
                from_linter=from_linter,
            )
        except TypeError:
            # anticipate 3rd party dialects that don't include **kw
            # TODO: remove in 2.1