pgcli crashes when using use directive

## Description
pgcli crashes when using `use` directive
## Your environment

PostgreSQL 16.5
pgcli-4.1.0
Python 3.11

- FreeBSD 14.1
- 4.1.0
- zsh: command not found: pip (I install from package).

```
dvl@/tmp:samdrucker> use freshports.dvl
You are now connected to database "freshports.dvl" as user "dvl"
Time: 0.022s
Traceback (most recent call last):
File "/usr/local/bin/pgcli", line 8, in
sys.exit(cli())
^^^^^
File "/usr/local/lib/python3.11/site-packages/click/core.py", line 1157, in __call__
^[[25;1R return self.main(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/click/core.py", line 1078, in main
rv = self.invoke(ctx)
^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/click/core.py", line 1434, in invoke
return ctx.invoke(self.callback, **ctx.params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/click/core.py", line 783, in invoke
return __callback(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pgcli/main.py", line 1640, in cli
pgcli.run_cli()
File "/usr/local/lib/python3.11/site-packages/pgcli/main.py", line 971, in run_cli
text = self.prompt_app.prompt()
^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/shortcuts/prompt.py", line 1035, in prompt
return self.app.run(
^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 1002, in run
return asyncio.run(coro)
^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/asyncio/runners.py", line 190, in run
return runner.run(main)
^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/asyncio/runners.py", line 118, in run
return self._loop.run_until_complete(task)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/asyncio/base_events.py", line 654, in run_until_complete
return future.result()
^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 886, in run_async
Exception in thread completion_refresh:
Traceback (most recent call last):
File "/usr/local/lib/python3.11/threading.py", line 1045, in _bootstrap_inner
return await _run_async(f)
^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 739, in _run_async
self.run()
File "/usr/local/lib/python3.11/threading.py", line 982, in run
self._redraw()
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 543, in _redraw
self._target(*self._args, **self._kwargs)
File "/usr/local/lib/python3.11/site-packages/pgcli/completion_refresher.py", line 67, in _bg_refresh
self.context.copy().run(run_in_context)
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 526, in run_in_context
refresher(completer, executor)
File "/usr/local/lib/python3.11/site-packages/pgcli/completion_refresher.py", line 108, in refresh_schemata
self.renderer.render(self, self.layout)
completer.set_search_path(executor.search_path())
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/renderer.py", line 641, in render
File "/usr/local/lib/python3.11/site-packages/pgcli/pgcompleter.py", line 328, in set_search_path
layout.container.preferred_height(size.columns, size.rows).preferred,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 318, in preferred_height
self.search_path = self.escaped_names(search_path)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pgcli/pgcompleter.py", line 176, in escaped_names
dimensions = [
^
return [self.escape_name(name) for name in names]
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 319, in
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pgcli/pgcompleter.py", line 176, in
c.preferred_height(width, max_available_height) for c in self._all_children
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
return [self.escape_name(name) for name in names]
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 786, in preferred_height
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pgcli/pgcompleter.py", line 157, in escape_name
return self.content.preferred_height(width, max_available_height)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
(not self.name_pattern.match(name))
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 318, in preferred_height
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: cannot use a string pattern on a bytes-like object
dimensions = [
^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 319, in
c.preferred_height(width, max_available_height) for c in self._all_children
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 2623, in preferred_height
if self.filter():
^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/filters/base.py", line 254, in __call__
return self.func()
^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/shortcuts/prompt.py", line 161, in has_before_fragments
for fragment, char, *_ in get_prompt_text():
^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/shortcuts/prompt.py", line 1280, in _get_prompt
return to_formatted_text(self.message, style="class:prompt")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/formatted_text/base.py", line 82, in to_formatted_text
return to_formatted_text(value(), style=style)
^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pgcli/main.py", line 1043, in get_message
prompt = self.get_prompt(prompt_format)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pgcli/main.py", line 1314, in get_prompt
string = string.replace("\\H", self.pgexecute.host or "(none)")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: replace() argument 2 must be str, not bytes
[20:41 pg03 dvl ~] % pgcli samdrucker
Server: PostgreSQL 16.4
Version: 4.1.0
Home: http://pgcli.com
dvl@/tmp:samdrucker> use fres
connection failed: connection to server on socket "/tmp/.s.PGSQL.5432" failed: FATAL: database "fres" does not exist
Previous connection kept
You are now connected to database "samdrucker" as user "dvl"
Time: 0.009s
dvl@/tmp:samdrucker> use freshports.freshports.dvl
connection failed: connection to server on socket "/tmp/.s.PGSQL.5432" failed: FATAL: database "freshports.freshports.dvl" does not exist
Previous connection kept
You are now connected to database "samdrucker" as user "dvl"
Time: 0.012s
dvl@/tmp:samdrucker> use freshports.dvl
You are now connected to database "freshports.dvl" as user "dvl"
Time: 0.021s
Traceback (most recent call last):
File "/usr/local/bin/pgcli", line 8, in
sys.exit(cli())
^^^^^
File "/usr/local/lib/python3.11/site-packages/click/core.py", line 1157, in __call__
^[[50;1R return self.main(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/click/core.py", line 1078, in main
rv = self.invoke(ctx)
^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/click/core.py", line 1434, in invoke
return ctx.invoke(self.callback, **ctx.params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/click/core.py", line 783, in invoke
return __callback(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pgcli/main.py", line 1640, in cli
pgcli.run_cli()
File "/usr/local/lib/python3.11/site-packages/pgcli/main.py", line 971, in run_cli
text = self.prompt_app.prompt()
^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/shortcuts/prompt.py", line 1035, in prompt
return self.app.run(
^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 1002, in run
return asyncio.run(coro)
^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/asyncio/runners.py", line 190, in run
return runner.run(main)
^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/asyncio/runners.py", line 118, in run
Exception in thread completion_refresh:
Traceback (most recent call last):
File "/usr/local/lib/python3.11/threading.py", line 1045, in _bootstrap_inner
return self._loop.run_until_complete(task)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/asyncio/base_events.py", line 654, in run_until_complete
self.run()
File "/usr/local/lib/python3.11/threading.py", line 982, in run
return future.result()
^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 886, in run_async
self._target(*self._args, **self._kwargs)
File "/usr/local/lib/python3.11/site-packages/pgcli/completion_refresher.py", line 67, in _bg_refresh
return await _run_async(f)
^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 739, in _run_async
refresher(completer, executor)
File "/usr/local/lib/python3.11/site-packages/pgcli/completion_refresher.py", line 108, in refresh_schemata
completer.set_search_path(executor.search_path())
self._redraw()
File "/usr/local/lib/python3.11/site-packages/pgcli/pgcompleter.py", line 328, in set_search_path
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 543, in _redraw
self.search_path = self.escaped_names(search_path)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pgcli/pgcompleter.py", line 176, in escaped_names
self.context.copy().run(run_in_context)
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 526, in run_in_context
return [self.escape_name(name) for name in names]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pgcli/pgcompleter.py", line 176, in
return [self.escape_name(name) for name in names]
self.renderer.render(self, self.layout)
^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/renderer.py", line 641, in render
File "/usr/local/lib/python3.11/site-packages/pgcli/pgcompleter.py", line 157, in escape_name
(not self.name_pattern.match(name))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
layout.container.preferred_height(size.columns, size.rows).preferred,
TypeError: cannot use a string pattern on a bytes-like object
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 318, in preferred_height
dimensions = [
^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 319, in
c.preferred_height(width, max_available_height) for c in self._all_children
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 786, in preferred_height
return self.content.preferred_height(width, max_available_height)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 318, in preferred_height
dimensions = [
^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 319, in
c.preferred_height(width, max_available_height) for c in self._all_children
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/layout/containers.py", line 2623, in preferred_height
if self.filter():
^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/filters/base.py", line 254, in __call__
return self.func()
^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/shortcuts/prompt.py", line 161, in has_before_fragments
for fragment, char, *_ in get_prompt_text():
^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/shortcuts/prompt.py", line 1280, in _get_prompt
return to_formatted_text(self.message, style="class:prompt")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/prompt_toolkit/formatted_text/base.py", line 82, in to_formatted_text
return to_formatted_text(value(), style=style)
^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pgcli/main.py", line 1043, in get_message
prompt = self.get_prompt(prompt_format)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/pgcli/main.py", line 1314, in get_prompt
string = string.replace("\\H", self.pgexecute.host or "(none)")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: replace() argument 2 must be str, not bytes
```

运行 pgcli 并针对 PostgreSQL 16.5 使用 `use` 指令来复现崩溃。先从 pgcli/pgcompleter.py 开始，重点检查 `escape_name` 和 `set_search_path`，然后检查 pgcli/main.py 中的 `get_prompt`；完成标准是切换数据库时，提示符渲染或补全刷新不再崩溃。

由索引模型根据 Issue 内容生成。