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Improve declare/fetch mode a little. 

Add a new DSN option for PREPARE hadling.

Hiroshi Inoue
This commit is contained in:
Hiroshi Inoue 2001-09-08 16:20:16 +00:00
parent fc5ec424ab
commit ec6c4d8c82
12 changed files with 72 additions and 35 deletions
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6
src/interfaces/odbc/connection.c
View File

@ -938,7 +938,7 @@ QResultClass *
CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi)
{
QResultClass *result_in = NULL, *res = NULL, *retres = NULL;
char swallow;
char swallow, *wq;
int id;
SocketClass *sock = self->sock;
int maxlen, empty_reqs;
@ -999,7 +999,9 @@ CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi)
ReadyToReturn = FALSE;
empty_reqs = 0;
if (strcmp(query, " ") == 0)
for (wq = query; isspace(*wq); wq++)
;
if (*wq == '\0')
empty_reqs = 1;
while (!ReadyToReturn)
{

1
src/interfaces/odbc/connection.h
View File

@ -159,6 +159,7 @@ typedef struct
char translation_dll[MEDIUM_REGISTRY_LEN];
char translation_option[SMALL_REGISTRY_LEN];
char focus_password;
char disallow_premature;
GLOBAL_VALUES drivers; /* moved from driver's option */
} ConnInfo;

8
src/interfaces/odbc/convert.c
View File

@ -1001,10 +1001,8 @@ copy_statement_with_parameters(StatementClass *stmt)
#ifdef DRIVER_CURSOR_IMPLEMENT
BOOL search_from_pos = FALSE;
#endif /* DRIVER_CURSOR_IMPLEMENT */
#ifdef PREPARE_TRIAL
prepare_dummy_cursor = stmt->pre_executing;
#endif /* PREPARE_TRIAL */
if (ci->disallow_premature)
prepare_dummy_cursor = stmt->pre_executing;
if (!old_statement)
{
@ -1704,7 +1702,6 @@ copy_statement_with_parameters(StatementClass *stmt)
if (search_from_pos)
stmt->options.scroll_concurrency = SQL_CONCUR_READ_ONLY;
#endif /* DRIVER_CURSOR_IMPLEMENT */
#ifdef PREPARE_TRIAL
if (prepare_dummy_cursor && SC_is_pre_executable(stmt))
{
char fetchstr[128];
@ -1715,7 +1712,6 @@ copy_statement_with_parameters(StatementClass *stmt)
CVT_APPEND_STR(fetchstr);
stmt->inaccurate_result = TRUE;
}
#endif /* PREPARE_TRIAL */
return SQL_SUCCESS;
}

34
src/interfaces/odbc/dlg_specific.c
View File

@ -245,11 +245,13 @@ driver_optionsProc(HWND hdlg,
ci = (ConnInfo *) lParam;
if (ci && ci->dsn && ci->dsn[0])
{
SetWindowText(hdlg, "Advanced Options (Common)");
driver_optionsDraw(hdlg, NULL, 0, TRUE);
}
else
{
CheckDlgButton(hdlg, DRV_OR_DSN, 1);
SetWindowText(hdlg, "Advanced Options (Connection)");
ShowWindow(GetDlgItem(hdlg, DRV_OR_DSN), SW_HIDE);
driver_optionsDraw(hdlg, ci, 1, FALSE);
}
@ -284,10 +286,14 @@ driver_optionsProc(HWND hdlg,
if (IsDlgButtonChecked(hdlg, DRV_OR_DSN))
{
ConnInfo *ci = (ConnInfo *) GetWindowLong(hdlg, DWL_USER);
SetWindowText(hdlg, "Advanced Options (per DSN)");
driver_optionsDraw(hdlg, ci, ci ? 1 : 0, ci == NULL);
}
else
{
SetWindowText(hdlg, "Advanced Options (Common)");
driver_optionsDraw(hdlg, NULL, 0, TRUE);
}
}
break;
}
@ -337,6 +343,7 @@ ds_optionsProc(HWND hdlg,
CheckDlgButton(hdlg, DS_FAKEOIDINDEX, atoi(ci->fake_oid_index));
CheckDlgButton(hdlg, DS_ROWVERSIONING, atoi(ci->row_versioning));
CheckDlgButton(hdlg, DS_SHOWSYSTEMTABLES, atoi(ci->show_system_tables));
CheckDlgButton(hdlg, DS_DISALLOWPREMATURE, ci->disallow_premature);
EnableWindow(GetDlgItem(hdlg, DS_FAKEOIDINDEX), atoi(ci->show_oid_column));
@ -371,6 +378,7 @@ ds_optionsProc(HWND hdlg,
sprintf(ci->show_system_tables, "%d", IsDlgButtonChecked(hdlg, DS_SHOWSYSTEMTABLES));
sprintf(ci->row_versioning, "%d", IsDlgButtonChecked(hdlg, DS_ROWVERSIONING));
ci->disallow_premature = IsDlgButtonChecked(hdlg, DS_DISALLOWPREMATURE);
/* OID Options */
sprintf(ci->fake_oid_index, "%d", IsDlgButtonChecked(hdlg, DS_FAKEOIDINDEX));
@ -620,8 +628,13 @@ copyAttributes(ConnInfo *ci, const char *attribute, const char *value)
decode(value, ci->conn_settings);
/* strcpy(ci->conn_settings, value); */
}
else if (stricmp(attribute, INI_DISALLOWPREMATURE) == 0 || stricmp(attribute, "C3") == 0)
{
ci->disallow_premature = atoi(value);
/* strcpy(ci->conn_settings, value); */
}
mylog("copyAttributes: DSN='%s',server='%s',dbase='%s',user='%s',passwd='%s',port='%s',onlyread='%s',protocol='%s', conn_settings='%s')\n", ci->dsn, ci->server, ci->database, ci->username, ci->password, ci->port, ci->onlyread, ci->protocol, ci->conn_settings);
mylog("copyAttributes: DSN='%s',server='%s',dbase='%s',user='%s',passwd='%s',port='%s',onlyread='%s',protocol='%s',conn_settings='%s',disallow_premature=%d)\n", ci->dsn, ci->server, ci->database, ci->username, ci->password, ci->port, ci->onlyread, ci->protocol, ci->conn_settings, ci->disallow_premature);
}
void
@ -715,7 +728,8 @@ void
getDSNinfo(ConnInfo *ci, char overwrite)
{
char *DSN = ci->dsn;
char encoded_conn_settings[LARGE_REGISTRY_LEN];
char encoded_conn_settings[LARGE_REGISTRY_LEN],
temp[SMALL_REGISTRY_LEN];
/*
* If a driver keyword was present, then dont use a DSN and return.
@ -784,8 +798,13 @@ getDSNinfo(ConnInfo *ci, char overwrite)
if (ci->translation_option[0] == '\0' || overwrite)
SQLGetPrivateProfileString(DSN, INI_TRANSLATIONOPTION, "", ci->translation_option, sizeof(ci->translation_option), ODBC_INI);
if (ci->disallow_premature == 0 || overwrite)
{
SQLGetPrivateProfileString(DSN, INI_DISALLOWPREMATURE, "", temp, sizeof(temp), ODBC_INI);
ci->disallow_premature = atoi(temp);
}
/* Allow override of odbcinst.ini parameters here */
/* getGlobalDefaults(DSN, ODBC_INI, TRUE); */
getCommonDefaults(DSN, ODBC_INI, ci);
qlog("DSN info: DSN='%s',server='%s',port='%s',dbase='%s',user='%s',passwd='%s'\n",
@ -823,7 +842,8 @@ void
writeDSNinfo(const ConnInfo *ci)
{
const char *DSN = ci->dsn;
char encoded_conn_settings[LARGE_REGISTRY_LEN];
char encoded_conn_settings[LARGE_REGISTRY_LEN],
temp[SMALL_REGISTRY_LEN];
encode(ci->conn_settings, encoded_conn_settings);
@ -891,6 +911,12 @@ writeDSNinfo(const ConnInfo *ci)
INI_CONNSETTINGS,
encoded_conn_settings,
ODBC_INI);
sprintf(temp, "%d", ci->disallow_premature);
SQLWritePrivateProfileString(DSN,
INI_DISALLOWPREMATURE,
temp,
ODBC_INI);
}

1
src/interfaces/odbc/dlg_specific.h
View File

@ -95,6 +95,7 @@
#define INI_TRANSLATIONNAME "TranslationName"
#define INI_TRANSLATIONDLL "TranslationDLL"
#define INI_TRANSLATIONOPTION "TranslationOption"
#define INI_DISALLOWPREMATURE "DisallowPremature"
/* Connection Defaults */

11
src/interfaces/odbc/execute.c
View File

@ -340,8 +340,12 @@ PGAPI_Execute(
return retval;
mylog(" stmt_with_params = '%s'\n", stmt->stmt_with_params);
#ifdef PREPARE_TRIAL
if (stmt->inaccurate_result)
/*
* Get the field info for the prepared
* query using dummy backward fetch.
*/
if (stmt->inaccurate_result && conn->connInfo.disallow_premature)
{
if (SC_is_pre_executable(stmt))
{
BOOL in_trans = CC_is_in_trans(conn);
@ -365,7 +369,8 @@ PGAPI_Execute(
}
else
return SQL_SUCCESS;
#endif /* PREPARE_TRIAL */
}
return SC_execute(stmt);
}

4
src/interfaces/odbc/psqlodbc.h
View File

@ -5,7 +5,7 @@
*
* Comments: See "notice.txt" for copyright and license information.
*
* $Id: psqlodbc.h,v 1.47 2001/09/07 06:02:22 inoue Exp $
* $Id: psqlodbc.h,v 1.48 2001/09/08 16:20:16 inoue Exp $
*
*/
@ -42,7 +42,7 @@ typedef UInt4 Oid;
#define DRIVERNAME "PostgreSQL ODBC"
#define DBMS_NAME "PostgreSQL"
#define POSTGRESDRIVERVERSION "07.01.0006"
#define POSTGRESDRIVERVERSION "07.01.0007"
#ifdef WIN32
#define DRIVER_FILE_NAME "PSQLODBC.DLL"

12
src/interfaces/odbc/psqlodbc.rc
View File

@ -149,6 +149,8 @@ BEGIN
BS_AUTOCHECKBOX | WS_TABSTOP,149,13,72,10
CONTROL "Show System &Tables",DS_SHOWSYSTEMTABLES,"Button",
BS_AUTOCHECKBOX | WS_TABSTOP,45,28,88,10
CONTROL "Disallow &Premature",DS_DISALLOWPREMATURE,"Button",
BS_AUTOCHECKBOX | WS_TABSTOP,149,28,72,10
GROUPBOX "Protocol",IDC_STATIC,43,44,180,25
CONTROL "7.X,6.4+",DS_PG64,"Button",BS_AUTORADIOBUTTON |
WS_GROUP,53,54,47,10
@ -264,6 +266,8 @@ BEGIN
BS_AUTOCHECKBOX | WS_TABSTOP,130,10,85,10
CONTROL "Show System &Tables",DS_SHOWSYSTEMTABLES,"Button",
BS_AUTOCHECKBOX | WS_TABSTOP,25,25,85,10
CONTROL "Disallow &Premature",DS_DISALLOWPREMATURE,"Button",
BS_AUTOCHECKBOX | WS_TABSTOP,130,25,85,10
GROUPBOX "Protocol",IDC_STATIC,15,40,180,25
CONTROL "7.X,6.4+",DS_PG64,"Button",BS_AUTORADIOBUTTON | WS_GROUP,25,
50,35,10
@ -350,8 +354,8 @@ END
//
VS_VERSION_INFO VERSIONINFO
FILEVERSION 7,1,0,6
PRODUCTVERSION 7,1,0,6
FILEVERSION 7,1,0,7
PRODUCTVERSION 7,1,0,7
FILEFLAGSMASK 0x3L
#ifdef _DEBUG
FILEFLAGS 0x1L
@ -373,14 +377,14 @@ BEGIN
VALUE "CompanyName", "Insight Distribution Systems\0"
#endif
VALUE "FileDescription", "PostgreSQL Driver\0"
VALUE "FileVersion", " 07.01.0006\0"
VALUE "FileVersion", " 07.01.0007\0"
VALUE "InternalName", "psqlodbc\0"
VALUE "LegalCopyright", "\0"
VALUE "LegalTrademarks", "ODBC(TM) is a trademark of Microsoft Corporation. Microsoft® is a registered trademark of Microsoft Corporation. Windows(TM) is a trademark of Microsoft Corporation.\0"
VALUE "OriginalFilename", "psqlodbc.dll\0"
VALUE "PrivateBuild", "\0"
VALUE "ProductName", "Microsoft Open Database Connectivity\0"
VALUE "ProductVersion", " 07.01.0006\0"
VALUE "ProductVersion", " 07.01.0007\0"
VALUE "SpecialBuild", "\0"
END
END

9
src/interfaces/odbc/qresult.c
View File

@ -238,6 +238,7 @@ QR_fetch_tuples(QResultClass *self, ConnectionClass *conn, char *cursor)
if (conn != NULL)
{
ConnInfo *ci = &(conn->connInfo);
BOOL fetch_cursor = (ci->drivers.use_declarefetch && cursor && cursor[0]);
self->conn = conn;
mylog("QR_fetch_tuples: cursor = '%s', self->cursor=%u\n", (cursor == NULL) ? "" : cursor, self->cursor);
@ -245,7 +246,7 @@ QR_fetch_tuples(QResultClass *self, ConnectionClass *conn, char *cursor)
if (self->cursor)
free(self->cursor);
if (ci->drivers.use_declarefetch)
if (fetch_cursor)
{
if (!cursor || cursor[0] == '\0')
{
@ -275,7 +276,7 @@ QR_fetch_tuples(QResultClass *self, ConnectionClass *conn, char *cursor)
mylog("QR_fetch_tuples: past CI_read_fields: num_fields = %d\n", self->num_fields);
if (ci->drivers.use_declarefetch)
if (fetch_cursor)
tuple_size = self->cache_size;
else
tuple_size = TUPLE_MALLOC_INC;
@ -432,7 +433,7 @@ QR_next_tuple(QResultClass *self)
if (!self->inTuples)
{
ci = &(self->conn->connInfo);
if (!ci->drivers.use_declarefetch)
if (!self->cursor || !ci->drivers.use_declarefetch)
{
mylog("next_tuple: ALL_ROWS: done, fcount = %d, fetch_count = %d\n", fcount, fetch_count);
self->tupleField = NULL;
@ -535,7 +536,7 @@ QR_next_tuple(QResultClass *self)
case 'B': /* Tuples in binary format */
case 'D': /* Tuples in ASCII format */
if (!ci->drivers.use_declarefetch && self->fcount >= self->count_allocated)
if ((!self->cursor || !ci->drivers.use_declarefetch) && self->fcount >= self->count_allocated)
{
int tuple_size = self->count_allocated;

3
src/interfaces/odbc/resource.h
View File

@ -51,6 +51,7 @@
#define DS_PG63 1058
#define DRV_OR_DSN 1059
#define DRV_DEBUG 1060
#define DS_DISALLOWPREMATURE 1061
// Next default values for new objects
//
@ -58,7 +59,7 @@
#ifndef APSTUDIO_READONLY_SYMBOLS
#define _APS_NEXT_RESOURCE_VALUE 105
#define _APS_NEXT_COMMAND_VALUE 40001
#define _APS_NEXT_CONTROL_VALUE 1061
#define _APS_NEXT_CONTROL_VALUE 1062
#define _APS_NEXT_SYMED_VALUE 101
#endif
#endif

10
src/interfaces/odbc/results.c
View File

@ -73,7 +73,7 @@ PGAPI_RowCount(
if (res && pcrow)
{
*pcrow = ci->drivers.use_declarefetch ? -1 : QR_get_num_tuples(res);
*pcrow = SC_is_fetchcursor(stmt) ? -1 : QR_get_num_tuples(res);
return SQL_SUCCESS;
}
}
@ -728,7 +728,7 @@ PGAPI_GetData(
}
}
if (stmt->manual_result || !ci->drivers.use_declarefetch)
if (stmt->manual_result || !SC_is_fetchcursor(stmt))
{
/* make sure we're positioned on a valid row */
num_rows = QR_get_num_tuples(res);
@ -929,7 +929,7 @@ PGAPI_ExtendedFetch(
}
ci = &(SC_get_conn(stmt)->connInfo);
if (ci->drivers.use_declarefetch && !stmt->manual_result)
if (SC_is_fetchcursor(stmt) && !stmt->manual_result)
{
if (fFetchType != SQL_FETCH_NEXT)
{
@ -1108,7 +1108,7 @@ PGAPI_ExtendedFetch(
* Handle Declare Fetch style specially because the end is not really
* the end...
*/
if (ci->drivers.use_declarefetch && !stmt->manual_result)
if (SC_is_fetchcursor(stmt) && !stmt->manual_result)
{
if (QR_end_tuples(res))
return SQL_NO_DATA_FOUND;
@ -1190,7 +1190,7 @@ PGAPI_ExtendedFetch(
stmt->currTuple = stmt->rowset_start;
/* For declare/fetch, need to reset cursor to beginning of rowset */
if (ci->drivers.use_declarefetch && !stmt->manual_result)
if (SC_is_fetchcursor(stmt) && !stmt->manual_result)
QR_set_position(res, 0);
/* Set the number of rows retrieved */

8
src/interfaces/odbc/statement.c
View File

@ -728,7 +728,7 @@ SC_fetch(StatementClass *self)
mylog("manual_result = %d, use_declarefetch = %d\n", self->manual_result, ci->drivers.use_declarefetch);
if (self->manual_result || !ci->drivers.use_declarefetch)
if (self->manual_result || !SC_is_fetchcursor(self))
{
if (self->currTuple >= QR_get_num_tuples(res) - 1 ||
(self->options.maxRows > 0 && self->currTuple == self->options.maxRows - 1))
@ -818,7 +818,7 @@ SC_fetch(StatementClass *self)
value = QR_get_value_manual(res, self->currTuple, lf);
mylog("manual_result\n");
}
else if (ci->drivers.use_declarefetch)
else if (SC_is_fetchcursor(self))
value = QR_get_value_backend(res, lf);
else
value = QR_get_value_backend_row(res, self->currTuple, lf);
@ -914,7 +914,7 @@ SC_execute(StatementClass *self)
* OTHER.
*/
if (!self->internal && !CC_is_in_trans(conn) &&
((ci->drivers.use_declarefetch && self->statement_type == STMT_TYPE_SELECT) ||
(SC_is_fetchcursor(self) ||
(!CC_is_in_autocommit(conn) && self->statement_type != STMT_TYPE_OTHER)))
{
mylog(" about to begin a transaction on statement = %u\n", self);
@ -964,7 +964,7 @@ SC_execute(StatementClass *self)
/* send the declare/select */
self->result = CC_send_query(conn, self->stmt_with_params, NULL);
if (ci->drivers.use_declarefetch && self->result != NULL &&
if (SC_is_fetchcursor(self) && self->result != NULL &&
QR_command_successful(self->result))
{
QR_Destructor(self->result);