works wrong for specific clickhouse type LowCardinality(String)

[zhougit86]

2020-04-22 13:57:31,804:ERROR:root:No field class for LowCardinality(String)
Traceback (most recent call last):
File "/root/superset/venv/lib/python2.7/site-packages/superset/sql_lab.py", line 179, in execute_sql
**db_engine_spec.cursor_execute_kwargs)
File "/root/superset/venv/lib/python2.7/site-packages/sqlalchemy_clickhouse/connector.py", line 210, in execute
self._process_response(response)
File "/root/superset/venv/lib/python2.7/site-packages/sqlalchemy_clickhouse/connector.py", line 341, in _process_response
for r in response:
File "/root/superset/venv/lib/python2.7/site-packages/infi/clickhouse_orm/database.py", line 244, in select
model_class = model_class or ModelBase.create_ad_hoc_model(zip(field_names, field_types))
File "/root/superset/venv/lib/python2.7/site-packages/infi/clickhouse_orm/models.py", line 59, in create_ad_hoc_model
attrs[name] = cls.create_ad_hoc_field(db_type)
File "/root/superset/venv/lib/python2.7/site-packages/sqlalchemy_clickhouse/connector.py", line 75, in create_ad_hoc_field
inner_field = cls.create_ad_hoc_field(db_type[6 : -1])
File "/root/superset/venv/lib/python2.7/site-packages/sqlalchemy_clickhouse/connector.py", line 91, in create_ad_hoc_field
raise NotImplementedError('No field class for %s' % db_type)

[zhougit86]

@vavrusa

[jackpgao]

用最新版，直接下载master分支，python setup.py install
作者一直没有往pypi更新，pip安装的不是最新的

[hyberdk]

yup it worked for me also, copying in the latest master branch and replace the files in the pip package did the trick.. Thanks jackpgao.

@cloudflare, can you please update the pip package..

[vavrusa]

Sorry, I've been busy. I'll wait a bit for #47 and update pip package.

[Ernestyj]

seems the #47 is done. Could we update the pip package?

[usasha]

For everyone waiting for pip package: pip install git+https://github.com/cloudflare/sqlalchemy-clickhouse.git will work.

[naoko]

LowCardinality can have FixedString(N) too. Would it be safe to say if db_type contains FixedString then String?

[Shardy153]

For everyone waiting for pip package: pip install git+https://github.com/cloudflare/sqlalchemy-clickhouse.git will work.

I have put git+https://github.com/cloudflare/sqlalchemy-clickhouse.git in my requirements.txt file but still getting this exception.
Can you help me?

[badihi]

The problem still exists for columns of type LowCardinality(Nullable(String)) using the code on master right now.