Connection Object: pgobject
6.3. Connection Object: pgobject
- Table of Contents
- query -- execute a SQL command
- reset -- reset the connection
- close -- close the database connection
- fileno -- return the socket used to connect to the database
- getnotify -- get the last notify from the server
- inserttable -- insert a list into a table
- putline -- write a line to the server socket [DA]
- getline -- get a line from server socket [DA]
- endcopy -- synchronize client and server [DA]
- locreate -- create a large object in the database [LO]
- getlo -- build a large object from given OID [LO]
- loimport -- import a file to a PostgreSQL large object [LO]
This object handles a connection to the PostgreSQL database. It embeds and hides all the parameters that define this connection, leaving just really significant parameters in function calls.
Some methods give direct access to the connection socket. They are specified by the tag [DA]. Do not use them unless you really know what you are doing. If you prefer disabling them, set the -DNO_DIRECT option in the Python Setup file.
Some other methods give access to large objects. if you want to forbid access to these from the module, set the -DNO_LARGE option in the Python Setup file. These methods are specified by the tag [LO].
Every pgobject defines a set of read-only
attributes that describe the connection and its status. These
attributes are:
- host
the host name of the server (string)
- port
the port of the server (integer)
- db
the selected database (string)
- options
the connection options (string)
- tty
the connection debug terminal (string)
- user
user name on the database system (string)
- status
the status of the connection (integer: 1 - OK, 0 - bad)
- error
the last warning/error message from the server (string)