HackBase/python-cx_Oracle
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Set the default array size to 50 instead of 1 as the DB API suggests because

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the performance difference is so drastic and many people have recommended that
the default be changed.
This commit is contained in:
Anthony Tuininga 2008-05-23 15:58:11 +00:00
parent b8b97ac65a
commit 9b56028455
2 changed files with 6 additions and 4 deletions
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3
Cursor.c
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@ -287,7 +287,8 @@ static int Cursor_Init(
Py_INCREF(connection);
self->connection = connection;
self->environment = connection->environment;
self->arraySize = 1;
self->arraySize = 50;
self->fetchArraySize = 50;
self->bindArraySize = 1;
self->statementType = -1;
self->outputSize = -1;

7
doc/cursor.rst
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@ -9,10 +9,11 @@ Cursor Object
This read-write attribute specifies the number of rows to fetch at a time
internally and is the default number of rows to fetch with the
:meth:`~Cursor.fetchmany()` call. It defaults to 1 meaning to fetch a
single row at a time. Note that this attribute can drastically affect the
:meth:`~Cursor.fetchmany()` call. It defaults to 50 meaning to fetch 50
rows at a time. Note that this attribute can drastically affect the
performance of a query since it directly affects the number of network round
trips that need to be performed.
trips that need to be performed. This is the reason for setting it to 50
instead of the 1 that the DB API recommends.
.. attribute:: Cursor.bindarraysize