9DemonFox

> q07, q08, q09, q22 are caused by gather not finding distributed context if placed under physicfromquery fixed, see PR#264.

**SQL** ``` select (select count(O.o_orderkey) from orders O where O.o_custkey = 37) as OrderCount, c_name, (select count(O2.o_custkey) from orders O2 where O2.o_custkey = 26) as CustPhone from customer C where...

What cause this is the non-corelated subqueries in selection clause are always pushed down.

@zhouruiapple ，the NOT IN subqueres is handling in #220

绕过的方法是重写一个 MarkdownHeaderTextSplitter， 在调用 docs = text_splitter.split_text(docs[0].page_content)时能把metadata['source']给带进去 docs = text_splitter.split_text(docs[0].page_content, docs[0].metadata['source']) 不过这个MarkDownHeaderTextSplitter和系统结合的比较粗糙，需要自己重写一下。 UnstructuredMarkdownLoader 会把文档中的##给删掉, 这个splitter反而没有效果了