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No implicit transaction on named cursor close

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Also, don't start an implicit transaction when fetching with
named with hold cursor, since it already returns results
from a previously committed transaction.
This commit is contained in:
Alexey Borzenkov 2013-07-09 23:36:04 +04:00 committed by Daniele Varrazzo
parent 18d67a73d5
commit d131b2b22b
3 changed files with 13 additions and 13 deletions
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20
psycopg/cursor_type.c
View File

@ -63,7 +63,7 @@ psyco_curs_close(cursorObject *self)
EXC_IF_NO_MARK(self); EXC_IF_NO_MARK(self);
PyOS_snprintf(buffer, 127, "CLOSE \"%s\"", self->name); PyOS_snprintf(buffer, 127, "CLOSE \"%s\"", self->name);
if (pq_execute(self, buffer, 0, 0) == -1) return NULL; if (pq_execute(self, buffer, 0, 0, 1) == -1) return NULL;
} }
self->closed = 1; self->closed = 1;
@ -444,7 +444,7 @@ _psyco_curs_execute(cursorObject *self,
/* At this point, the SQL statement must be str, not unicode */ /* At this point, the SQL statement must be str, not unicode */
tmp = pq_execute(self, Bytes_AS_STRING(self->query), async, no_result); tmp = pq_execute(self, Bytes_AS_STRING(self->query), async, no_result, 0);
Dprintf("psyco_curs_execute: res = %d, pgres = %p", tmp, self->pgres); Dprintf("psyco_curs_execute: res = %d, pgres = %p", tmp, self->pgres);
if (tmp < 0) { goto exit; } if (tmp < 0) { goto exit; }
@ -766,7 +766,7 @@ psyco_curs_fetchone(cursorObject *self)
EXC_IF_ASYNC_IN_PROGRESS(self, fetchone); EXC_IF_ASYNC_IN_PROGRESS(self, fetchone);
EXC_IF_TPC_PREPARED(self->conn, fetchone); EXC_IF_TPC_PREPARED(self->conn, fetchone);
PyOS_snprintf(buffer, 127, "FETCH FORWARD 1 FROM \"%s\"", self->name); PyOS_snprintf(buffer, 127, "FETCH FORWARD 1 FROM \"%s\"", self->name);
if (pq_execute(self, buffer, 0, 0) == -1) return NULL; if (pq_execute(self, buffer, 0, 0, self->withhold) == -1) return NULL;
if (_psyco_curs_prefetch(self) < 0) return NULL; if (_psyco_curs_prefetch(self) < 0) return NULL;
} }
@ -816,7 +816,7 @@ psyco_curs_next_named(cursorObject *self)
PyOS_snprintf(buffer, 127, "FETCH FORWARD %ld FROM \"%s\"", PyOS_snprintf(buffer, 127, "FETCH FORWARD %ld FROM \"%s\"",
self->itersize, self->name); self->itersize, self->name);
if (pq_execute(self, buffer, 0, 0) == -1) return NULL; if (pq_execute(self, buffer, 0, 0, self->withhold) == -1) return NULL;
if (_psyco_curs_prefetch(self) < 0) return NULL; if (_psyco_curs_prefetch(self) < 0) return NULL;
} }
@ -885,7 +885,7 @@ psyco_curs_fetchmany(cursorObject *self, PyObject *args, PyObject *kwords)
EXC_IF_TPC_PREPARED(self->conn, fetchone); EXC_IF_TPC_PREPARED(self->conn, fetchone);
PyOS_snprintf(buffer, 127, "FETCH FORWARD %d FROM \"%s\"", PyOS_snprintf(buffer, 127, "FETCH FORWARD %d FROM \"%s\"",
(int)size, self->name); (int)size, self->name);
if (pq_execute(self, buffer, 0, 0) == -1) { goto exit; } if (pq_execute(self, buffer, 0, 0, self->withhold) == -1) { goto exit; }
if (_psyco_curs_prefetch(self) < 0) { goto exit; } if (_psyco_curs_prefetch(self) < 0) { goto exit; }
} }
@ -960,7 +960,7 @@ psyco_curs_fetchall(cursorObject *self)
EXC_IF_ASYNC_IN_PROGRESS(self, fetchall); EXC_IF_ASYNC_IN_PROGRESS(self, fetchall);
EXC_IF_TPC_PREPARED(self->conn, fetchall); EXC_IF_TPC_PREPARED(self->conn, fetchall);
PyOS_snprintf(buffer, 127, "FETCH FORWARD ALL FROM \"%s\"", self->name); PyOS_snprintf(buffer, 127, "FETCH FORWARD ALL FROM \"%s\"", self->name);
if (pq_execute(self, buffer, 0, 0) == -1) { goto exit; } if (pq_execute(self, buffer, 0, 0, self->withhold) == -1) { goto exit; }
if (_psyco_curs_prefetch(self) < 0) { goto exit; } if (_psyco_curs_prefetch(self) < 0) { goto exit; }
} }
@ -1178,7 +1178,7 @@ psyco_curs_scroll(cursorObject *self, PyObject *args, PyObject *kwargs)
else { else {
PyOS_snprintf(buffer, 127, "MOVE %d FROM \"%s\"", value, self->name); PyOS_snprintf(buffer, 127, "MOVE %d FROM \"%s\"", value, self->name);
} }
if (pq_execute(self, buffer, 0, 0) == -1) return NULL; if (pq_execute(self, buffer, 0, 0, self->withhold) == -1) return NULL;
if (_psyco_curs_prefetch(self) < 0) return NULL; if (_psyco_curs_prefetch(self) < 0) return NULL;
} }
@ -1391,7 +1391,7 @@ psyco_curs_copy_from(cursorObject *self, PyObject *args, PyObject *kwargs)
Py_INCREF(file); Py_INCREF(file);
self->copyfile = file; self->copyfile = file;
if (pq_execute(self, query, 0, 0) >= 0) { if (pq_execute(self, query, 0, 0, 0) >= 0) {
res = Py_None; res = Py_None;
Py_INCREF(Py_None); Py_INCREF(Py_None);
} }
@ -1485,7 +1485,7 @@ psyco_curs_copy_to(cursorObject *self, PyObject *args, PyObject *kwargs)
Py_INCREF(file); Py_INCREF(file);
self->copyfile = file; self->copyfile = file;
if (pq_execute(self, query, 0, 0) >= 0) { if (pq_execute(self, query, 0, 0, 0) >= 0) {
res = Py_None; res = Py_None;
Py_INCREF(Py_None); Py_INCREF(Py_None);
} }
@ -1559,7 +1559,7 @@ psyco_curs_copy_expert(cursorObject *self, PyObject *args, PyObject *kwargs)
self->copyfile = file; self->copyfile = file;
/* At this point, the SQL statement must be str, not unicode */ /* At this point, the SQL statement must be str, not unicode */
if (pq_execute(self, Bytes_AS_STRING(sql), 0, 0) >= 0) { if (pq_execute(self, Bytes_AS_STRING(sql), 0, 0, 0) >= 0) {
res = Py_None; res = Py_None;
Py_INCREF(res); Py_INCREF(res);
} }

4
psycopg/pqpath.c
View File

@ -893,7 +893,7 @@ pq_flush(connectionObject *conn)
*/ */
RAISES_NEG int RAISES_NEG int
pq_execute(cursorObject *curs, const char *query, int async, int no_result) pq_execute(cursorObject *curs, const char *query, int async, int no_result, int no_begin)
{ {
PGresult *pgres = NULL; PGresult *pgres = NULL;
char *error = NULL; char *error = NULL;
@ -916,7 +916,7 @@ pq_execute(cursorObject *curs, const char *query, int async, int no_result)
Py_BEGIN_ALLOW_THREADS; Py_BEGIN_ALLOW_THREADS;
pthread_mutex_lock(&(curs->conn->lock)); pthread_mutex_lock(&(curs->conn->lock));
if (pq_begin_locked(curs->conn, &pgres, &error, &_save) < 0) { if (!no_begin && pq_begin_locked(curs->conn, &pgres, &error, &_save) < 0) {
pthread_mutex_unlock(&(curs->conn->lock)); pthread_mutex_unlock(&(curs->conn->lock));
Py_BLOCK_THREADS; Py_BLOCK_THREADS;
pq_complete_error(curs->conn, &pgres, &error); pq_complete_error(curs->conn, &pgres, &error);

2
psycopg/pqpath.h
View File

@ -36,7 +36,7 @@
HIDDEN PGresult *pq_get_last_result(connectionObject *conn); HIDDEN PGresult *pq_get_last_result(connectionObject *conn);
RAISES_NEG HIDDEN int pq_fetch(cursorObject *curs, int no_result); RAISES_NEG HIDDEN int pq_fetch(cursorObject *curs, int no_result);
RAISES_NEG HIDDEN int pq_execute(cursorObject *curs, const char *query, RAISES_NEG HIDDEN int pq_execute(cursorObject *curs, const char *query,
int async, int no_result); int async, int no_result, int no_begin);
HIDDEN int pq_send_query(connectionObject *conn, const char *query); HIDDEN int pq_send_query(connectionObject *conn, const char *query);
HIDDEN int pq_begin_locked(connectionObject *conn, PGresult **pgres, HIDDEN int pq_begin_locked(connectionObject *conn, PGresult **pgres,
char **error, PyThreadState **tstate); char **error, PyThreadState **tstate);