On 11/25/20 4:29 AM, listas wrote:
El 24/11/20 a las 17:52, Daniele Varrazzo escribió:
Hello,

I wrote a description of the psycopg3 adaptation system and the main
differences compared to psycopg2: available at
https://www.psycopg.org/articles/2020/11/24/psycopg3-adaptation/

Initial API docs are available at
https://www.psycopg.org/psycopg3/docs/adaptation.html

Feedback is welcome. Cheers!

-- Daniele


Hi Daniele, thanks for your effort.

After reading the docs i have a question about the parameters in the 'in' clause.

In psycopg2 i do:

  params = (1,2,3,4)
  cursor.execute("select * from mytable where field1 in %s", (params,))

or

  params = ('black','red','green')
  cursor.execute("select * from mytable where field2 in %s", (params,))

What will it be like in psycopg3, will it be the same?, will I have to create a special adapter?

From the link:

"cannot use the IN (...) construct:

# Must use "AND nation = any (%s)"
cur.execute("... AND nation in %s", [("IT", "FR", "DE")])

"


Thanks
--
Oswaldo Hernández




--
Adrian Klaver
[email protected]


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