8000 pandas extension `pg_copy_from` silently converts `text` objects to `str` · Issue #25 · dssg/ohio · GitHub
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pandas extension pg_copy_from silently converts text objects to str #25

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not-the-fish opened this issue Mar 23, 2021 · 0 comments
Open

pandas extension pg_copy_from silently converts text objects to str #25

not-the-fish opened this issue Mar 23, 2021 · 0 comments

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@not-the-fish
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not-the-fish commented Mar 23, 2021 •
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As a user, I expect, because I am also passing a sqlalchemy connectable, that pg_copy_from would respect the properties of a text object passed as the query (including using the default values of any bound parameters at execution), but it silently converts the text object to a plain str.

A couple of solutions are possible:

  1. Document that the copy extensions convert things to string (and maybe give a warning when getting something other than a string)
  2. Support text objects in a way compatible with user expectations of sqlalchemy

2 seems nicer but 🤷
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