Server side large object functions
От | George Weaver |
---|---|
Тема | Server side large object functions |
Дата | |
Msg-id | FF2AB17A15534B4E896554DE5E7D2976@d800 обсуждение исходный текст |
Ответы |
Re: Server side large object functions
Re: Server side large object functions |
Список | pgsql-general |
Hi, The PostgreSQL manual indicates that: "There are server-side functions callable from SQL that correspond to each of the client-side functions described above." In psql I can get the argument data types for lo_open: development=# \df+ lo_open List of functions Schema | Name | Result data type | Argument data types | Volatility | O wner | Language | Source code | Description ------------+---------+------------------+---------------------+------------+--- -------+----------+-------------+------------------- pg_catalog | lo_open | integer | oid, integer | volatile | po stgres | internal | lo_open | large object open (1 row) But if I try to find the same for lo_read I get: development=# \df+ lo_read List of functions Schema | Name | Result data type | Argument data types | Volatility | Owner | L anguage | Source code | Description --------+------+------------------+---------------------+------------+-------+-- --------+-------------+------------- (0 rows) Is there not a server side function for lo_read? If so, how do I determine the argument types? My objective it to read a large object into memory as opposed to exporting it to a disk file. I'm using version 8.3.3, psqlODBC 8.2.2 and vb.net. Thanks, George
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