Abhijit Menon-Sen wrote:
> Unless you explicitly declare and fetch from an SQL-level cursor, your
> many GBs of data are going to be transmitted to libpq, which will eat
> lots of memory. (The wire protocol does have something like cursors,
> but libpq does not use them, it retrieves the entire
Alex Goncharov wrote:
,--- I/Alex (Mon, 24 May 2010 12:25:18 -0400) *
| No equivalent of FETCH_COUNT is available at the libpq level, so I
| assume that the interface I am using is smart enough not to send
| gigabytes of data to FE.
|
| Where does the result set (GBs of data) reside after
On 05/25/2010 07:35 AM, Alex Goncharov wrote:
,--- I/Alex (Mon, 24 May 2010 12:25:18 -0400) *
| No equivalent of FETCH_COUNT is available at the libpq level, so I
| assume that the interface I am using is smart enough not to send
| gigabytes of data to FE.
|
| Where does the result set (GBs o
,--- Abhijit Menon-Sen (Tue, 25 May 2010 17:26:18 +0530) *
| Unless you explicitly declare and fetch from an SQL-level cursor, your
| many GBs of data are going to be transmitted to libpq, which will eat
| lots of memory. (The wire protocol does have something like cursors,
| but libpq does not
At 2010-05-25 07:35:34 -0400, alex-goncha...@comcast.net wrote:
>
> | Where does the result set (GBs of data) reside after I call
> | PQexecPrepared? On BE, I hope?
Unless you explicitly declare and fetch from an SQL-level cursor, your
many GBs of data are going to be transmitted to libpq, which
Alex Goncharov wrote:
,--- I/Alex (Mon, 24 May 2010 12:25:18 -0400) *
| No equivalent of FETCH_COUNT is available at the libpq level, so I
| assume that the interface I am using is smart enough not to send
| gigabytes of data to FE.
|
| Where does the result set (GBs of data) reside after I
,--- I/Alex (Mon, 24 May 2010 12:25:18 -0400) *
| No equivalent of FETCH_COUNT is available at the libpq level, so I
| assume that the interface I am using is smart enough not to send
| gigabytes of data to FE.
|
| Where does the result set (GBs of data) reside after I call
| PQexecPrepared?
I have some libpq-using application code, in which fetching the data
follows this logic (after a statement has been prepared):
PQexecPrepared(pg_result, pg_conn, pg_statement_name, input_param_cnt,
param_values, param_lengths, param_form
