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25.12.2018 · AttributeError: 'psycopg2.extensions.cursor' object has no attribute 'fast_executemany' to_sql() is too slow. so trying to resolve the problem. but when I run the following code I am getting :-AttributeError: 'psycopg2.extensions.cursor' object has no attribute 'fast_executemany'

28.10.2020 · Photo by Nextvoyage from Pexels. I’ve been recently trying to load large datasets to a SQL Server database with Python. Usually, to speed up the inserts with pyodbc, I tend to use the feature cursor.fast_executemany = True which significantly speeds up the inserts. However, today I experienced a weird bug and started digging deeper into how fast_executemany really works.

The Python SQL Toolkit and Object Relational Mapper ... a time, then the fast_executemany flag will have no effect for you.

AttributeError: 'psycopg2.extensions.cursor' object has no attribute 'fast_executemany'. Anyone know what's going on?

description¶. Read-only attribute describing the result of a query. It is a sequence of Column instances, each one describing one result column in order. The attribute is None for operations that do not return rows or if the cursor has not had an operation invoked via the execute*() methods yet.. For compatibility with the DB-API, every object can be unpacked as a 7-items …

class psycopg2.extensions.cursor(conn, name=None) ¶ It is the class usually returned by the connection.cursor () method. It is exposed by the extensions module in order to allow subclassing to extend its behaviour: the subclass should be passed to the cursor () method using the cursor_factory parameter. See also Connection and cursor factories.

AttributeError: 'psycopg2.extensions.cursor' object has no attribute 'fast_executemany'. Anyone know what's going on? Anonymous says:.

AttributeError: 'psycopg2.extensions.cursor' object has no attribute 'fast_executemany'. @event.listens_for(conn, 'before_cursor_execute') def ...

31.01.2017 · AttributeError: 'psycopg2.extensions.cursor' object has no attribute 'fast_executemany' You are using psycopg2, which is a postgresql driver. This issue and fix pertain to Microsoft SQL Server using the pyodbc driver. SincerelyUnique commented on Jun 26, 2019 what about add 'dtype' parameter FukoH commented on Jul 8, 2019

The attribute is -1 in case no execute*() has been performed on the cursor or the row count of the last operation if it can’t be determined by the interface. Note The DB API 2.0 interface reserves to redefine the latter case to have the object return None instead of -1 in future versions of the specification.

use insert with tuples it around 200 time faster than executemany in psycopg args_str = ','.join(cur.mogrify("(%s,%s,%s,%s,%s,%s,%s,%s,%s)", ...

AttributeError: 'psycopg2.extensions.cursor' object has no attribute 'fast_executemany'. @event.listens_for(conn, 'before_cursor_execute') def ...

The following are 30 code examples for showing how to use psycopg2.extensions.cursor().These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.

AttributeError: 'psycopg2.extensions.cursor' object has no attribute 'fast_executemany'. to_sql() is too slow. so trying to resolve the problem. but when I ...

Apr 19, 2019 · Hi all, I have connected to AWS RDS Postgres with psycopg2-3.6 but can't use cusor or execute command. Anyone resolve this issue? START RequestId: 1932d209-b708-4adb-8690-ce77059c867e Version: ...

The following are 30 code examples for showing how to use psycopg2.extensions.cursor().These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.

Oct 27, 2020 · fast_executemany can boost the performance of executemany operations by greatly reducing the number of round-trips to the server. This is the primary reason why I wanted to fix this. According to the Github issue from the pyodbc repository [2], pyodbc internally passes all decimal values as strings because of some discrepancies and bugs related to decimal points used by various database drivers .

Dec 26, 2018 · AttributeError: 'psycopg2.extensions.cursor' object has no attribute 'fast_executemany'. @event.listens_for(conn, 'before_cursor_execute')def receive_before_cursor_execute(conn, cursor, statement, params, context, executemany): if executemany: cursor.fast_executemany = True cursor.commit() pythonpandasamazon-redshiftpandas-to-sql.

Jan 31, 2017 · AttributeError: 'psycopg2.extensions.cursor' object has no attribute 'fast_executemany' You are using psycopg2, which is a postgresql driver. This issue and fix pertain to Microsoft SQL Server using the pyodbc driver.