Hi 👋, I'm Boris
A data engineer , feapder crawler framework's author
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🔭 I’m currently working on Alibaba
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📫 Reach me at [email protected]
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Good project:feapder、feaplat、wechat-spider、spidertools
feapder的管道扩展
License: Other
🔭 I’m currently working on Alibaba
📫 Reach me at [email protected]
Good project:feapder、feaplat、wechat-spider、spidertools
python 的列表和字符串变量不能直接向这两个类型存入,不然会报错,可以添加一些自动方法么?
Postgresql采用以下sql查找ON CONFLICT(key)
,在分表的情况下会找不到key
select column_names from(
select
t.relname as table_name,
i.relname as index_name,
array_to_string(array_agg(a.attname), ', ') as column_names
from
pg_class t,
pg_class i,
pg_index ix,
pg_attribute a
where
t.oid = ix.indrelid
and i.oid = ix.indexrelid
and a.attrelid = t.oid
and a.attnum = ANY(ix.indkey)
and t.relkind = 'r'
and t.relname like '%'
group by
t.relname,
i.relname
order by
t.relname,
i.relname) as res
where table_name = 'table_name';
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