[pgAdmin] RM6018 Encoding issue updating database
Hi Team,
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This is regarding RM6018 when a user sets the database encoding to SQL_ASCII and names the column with ascii characters.
Code is written for escaping the ascii characters and getting its escaped value (here for È its encoding escaped value is \\xc8)
I am trying to update È column for the second row. After encoding & decoding the column name generated so is \\xc8
The actual issue is the dictionary key as a parameter passed for query execution.
params = { '\\xc8' : 'some_value' }
query = b'UPDATE public."\xfc" SET "\xc8" = %(\xc8)s WHERE "\xfc" = \'xyz\''
query = query.encode(self.python_encoding)
params = self.escape_params_sqlascii(params)
cur.execute(query, params)
As the cur.execute is unable to replace params in the query, it throws an error.
The tried solutions are:
- Tried to have \xc8 as a key, but python internally read it as È, so fails.
- Tried placing the key as byte b'\xc8', doesn't work.
- Tried to change the \xc8 to \\xc8 inside the query, but risk involves query tampering.
- Tried including BYTES / BYTESARRAY typecasters according to psycopg docs https://www.psycopg.org/docs/usage.html#unicode-handling, still didn't work.
Examples given in psycopg docs for Unicode handling involve only record values passed & not the column names itself.
Any other suggestions on how we can handle this?
Rahul Shirsat
Senior Software Engineer | EnterpriseDB Corporation.
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