[I] python: Postgres .execute throws ValueError with trailing semicolon in statement [arrow-adbc]

["WillAyd (via GitHub)" <gi...@apache.org>]

WillAyd opened a new issue, #1147:
URL: https://github.com/apache/arrow-adbc/issues/1147

   Tested on 0.7.0
   
   ```python
   from adbc_driver_postgresql import dbapi as pg_dbapi
   from adbc_driver_sqlite import dbapi as sqlite_dbapi
   
   
   sqlite_uri = "file::memory"
   with sqlite_dbapi.connect(sqlite_uri) as conn:
       with conn.cursor() as cur:
           cur.execute("SELECT current_date;")  # executes without error
       
   pg_uri = "postgresql://postgres:postgres@localhost:5432/pandas"
   with pg_dbapi.connect(pg_uri) as conn:
       with conn.cursor() as cur:
           cur.execute("SELECT current_date;")        
   ```
   
   The postgres execute call yields
   
   ```sh
   ProgrammingError                          Traceback (most recent call last)
   Cell In[3], line 13
        11 with pg_dbapi.connect(pg_uri) as conn:
        12     with conn.cursor() as cur:
   ---> 13         cur.execute("SELECT current_date;")        
   
   File ~/mambaforge/envs/pandas-dev/lib/python3.10/site-packages/adbc_driver_manager/dbapi.py:669, in Cursor.execute(self, operation, parameters)
       654 """
       655 Execute a query.
       656 
      (...)
       666     parameters, which will each be bound in turn).
       667 """
       668 self._prepare_execute(operation, parameters)
   --> 669 handle, self._rowcount = self._stmt.execute_query()
       670 self._results = _RowIterator(
       671     # pyarrow.RecordBatchReader._import_from_c(handle.address)
       672     _reader.AdbcRecordBatchReader._import_from_c(handle.address)
       673 )
   
   File ~/mambaforge/envs/pandas-dev/lib/python3.10/site-packages/adbc_driver_manager/_lib.pyx:1106, in adbc_driver_manager._lib.AdbcStatement.execute_query()
   
   File ~/mambaforge/envs/pandas-dev/lib/python3.10/site-packages/adbc_driver_manager/_lib.pyx:227, in adbc_driver_manager._lib.check_error()
   
   ProgrammingError: INVALID_ARGUMENT: [libpq] Failed to execute query: could not begin COPY: ERROR:  syntax error at or near ";"
   LINE 1: COPY (SELECT current_date;) TO STDOUT (FORMAT binary)
                                    ^
   
   Query was: COPY (SELECT current_date;) TO STDOUT (FORMAT binary). SQLSTATE: 42601
   ```


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Re: [I] c/driver/postgresql: handle trailing semicolon in statement when creating COPY statement [arrow-adbc]

["lidavidm (via GitHub)" <gi...@apache.org>]

lidavidm closed issue #1147: c/driver/postgresql: handle trailing semicolon in statement when creating COPY statement
URL: https://github.com/apache/arrow-adbc/issues/1147


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Re: [I] c/driver/postgresql: handle trailing semicolon in statement when creating COPY statement [arrow-adbc]

["lidavidm (via GitHub)" <gi...@apache.org>]

lidavidm commented on issue #1147:
URL: https://github.com/apache/arrow-adbc/issues/1147#issuecomment-1743279561

   CC @ywc88 


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