1 /*
2 +----------------------------------------------------------------------+
3 | Copyright (c) The PHP Group |
4 +----------------------------------------------------------------------+
5 | This source file is subject to version 3.01 of the PHP license, |
6 | that is bundled with this package in the file LICENSE, and is |
7 | available through the world-wide-web at the following url: |
8 | https://www.php.net/license/3_01.txt |
9 | If you did not receive a copy of the PHP license and are unable to |
10 | obtain it through the world-wide-web, please send a note to |
11 | license@php.net so we can mail you a copy immediately. |
12 +----------------------------------------------------------------------+
13 | Authors: Edin Kadribasic <edink@emini.dk> |
14 | Ilia Alshanestsky <ilia@prohost.org> |
15 | Wez Furlong <wez@php.net> |
16 +----------------------------------------------------------------------+
17 */
18
19 #ifdef HAVE_CONFIG_H
20 #include "config.h"
21 #endif
22
23 #include "php.h"
24 #include "php_ini.h"
25 #include "ext/standard/info.h"
26 #include "pdo/php_pdo.h"
27 #include "pdo/php_pdo_driver.h"
28 #include "php_pdo_pgsql.h"
29 #include "php_pdo_pgsql_int.h"
30 #ifdef HAVE_NETINET_IN_H
31 #include <netinet/in.h>
32 #endif
33
34 /* from postgresql/src/include/catalog/pg_type.h */
35 #define BOOLLABEL "bool"
36 #define BOOLOID 16
37 #define BYTEALABEL "bytea"
38 #define BYTEAOID 17
39 #define DATELABEL "date"
40 #define DATEOID 1082
41 #define INT2LABEL "int2"
42 #define INT2OID 21
43 #define INT4LABEL "int4"
44 #define INT4OID 23
45 #define INT8LABEL "int8"
46 #define INT8OID 20
47 #define OIDOID 26
48 #define TEXTLABEL "text"
49 #define TEXTOID 25
50 #define TIMESTAMPLABEL "timestamp"
51 #define TIMESTAMPOID 1114
52 #define VARCHARLABEL "varchar"
53 #define VARCHAROID 1043
54
55
56
pgsql_stmt_dtor(pdo_stmt_t * stmt)57 static int pgsql_stmt_dtor(pdo_stmt_t *stmt)
58 {
59 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
60 bool server_obj_usable = !Z_ISUNDEF(stmt->database_object_handle)
61 && IS_OBJ_VALID(EG(objects_store).object_buckets[Z_OBJ_HANDLE(stmt->database_object_handle)])
62 && !(OBJ_FLAGS(Z_OBJ(stmt->database_object_handle)) & IS_OBJ_FREE_CALLED);
63
64 if (S->result) {
65 /* free the resource */
66 PQclear(S->result);
67 S->result = NULL;
68 }
69
70 if (S->stmt_name) {
71 if (S->is_prepared && server_obj_usable) {
72 pdo_pgsql_db_handle *H = S->H;
73 char *q = NULL;
74 PGresult *res;
75
76 spprintf(&q, 0, "DEALLOCATE %s", S->stmt_name);
77 res = PQexec(H->server, q);
78 efree(q);
79 if (res) {
80 PQclear(res);
81 }
82 }
83 efree(S->stmt_name);
84 S->stmt_name = NULL;
85 }
86 if (S->param_lengths) {
87 efree(S->param_lengths);
88 S->param_lengths = NULL;
89 }
90 if (S->param_values) {
91 efree(S->param_values);
92 S->param_values = NULL;
93 }
94 if (S->param_formats) {
95 efree(S->param_formats);
96 S->param_formats = NULL;
97 }
98 if (S->param_types) {
99 efree(S->param_types);
100 S->param_types = NULL;
101 }
102 if (S->query) {
103 zend_string_release(S->query);
104 S->query = NULL;
105 }
106
107 if (S->cursor_name) {
108 if (server_obj_usable) {
109 pdo_pgsql_db_handle *H = S->H;
110 char *q = NULL;
111 PGresult *res;
112
113 spprintf(&q, 0, "CLOSE %s", S->cursor_name);
114 res = PQexec(H->server, q);
115 efree(q);
116 if (res) PQclear(res);
117 }
118 efree(S->cursor_name);
119 S->cursor_name = NULL;
120 }
121
122 if(S->cols) {
123 efree(S->cols);
124 S->cols = NULL;
125 }
126 efree(S);
127 stmt->driver_data = NULL;
128 return 1;
129 }
130
pgsql_stmt_execute(pdo_stmt_t * stmt)131 static int pgsql_stmt_execute(pdo_stmt_t *stmt)
132 {
133 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
134 pdo_pgsql_db_handle *H = S->H;
135 ExecStatusType status;
136
137 bool in_trans = stmt->dbh->methods->in_transaction(stmt->dbh);
138
139 /* ensure that we free any previous unfetched results */
140 if(S->result) {
141 PQclear(S->result);
142 S->result = NULL;
143 }
144
145 S->current_row = 0;
146
147 if (S->cursor_name) {
148 char *q = NULL;
149
150 if (S->is_prepared) {
151 spprintf(&q, 0, "CLOSE %s", S->cursor_name);
152 PQclear(PQexec(H->server, q));
153 efree(q);
154 }
155
156 spprintf(&q, 0, "DECLARE %s SCROLL CURSOR WITH HOLD FOR %s", S->cursor_name, ZSTR_VAL(stmt->active_query_string));
157 S->result = PQexec(H->server, q);
158 efree(q);
159
160 /* check if declare failed */
161 status = PQresultStatus(S->result);
162 if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK) {
163 pdo_pgsql_error_stmt(stmt, status, pdo_pgsql_sqlstate(S->result));
164 return 0;
165 }
166 PQclear(S->result);
167
168 /* the cursor was declared correctly */
169 S->is_prepared = 1;
170
171 /* fetch to be able to get the number of tuples later, but don't advance the cursor pointer */
172 spprintf(&q, 0, "FETCH FORWARD 0 FROM %s", S->cursor_name);
173 S->result = PQexec(H->server, q);
174 efree(q);
175 } else if (S->stmt_name) {
176 /* using a prepared statement */
177
178 if (!S->is_prepared) {
179 stmt_retry:
180 /* we deferred the prepare until now, because we didn't
181 * know anything about the parameter types; now we do */
182 S->result = PQprepare(H->server, S->stmt_name, ZSTR_VAL(S->query),
183 stmt->bound_params ? zend_hash_num_elements(stmt->bound_params) : 0,
184 S->param_types);
185 status = PQresultStatus(S->result);
186 switch (status) {
187 case PGRES_COMMAND_OK:
188 case PGRES_TUPLES_OK:
189 /* it worked */
190 S->is_prepared = 1;
191 PQclear(S->result);
192 break;
193 default: {
194 char *sqlstate = pdo_pgsql_sqlstate(S->result);
195 /* 42P05 means that the prepared statement already existed. this can happen if you use
196 * a connection pooling software line pgpool which doesn't close the db-connection once
197 * php disconnects. if php dies (no chance to run RSHUTDOWN) during execution it has no
198 * chance to DEALLOCATE the prepared statements it has created. so, if we hit a 42P05 we
199 * deallocate it and retry ONCE (thies 2005.12.15)
200 */
201 if (sqlstate && !strcmp(sqlstate, "42P05")) {
202 char buf[100]; /* stmt_name == "pdo_crsr_%08x" */
203 PGresult *res;
204 snprintf(buf, sizeof(buf), "DEALLOCATE %s", S->stmt_name);
205 res = PQexec(H->server, buf);
206 if (res) {
207 PQclear(res);
208 }
209 goto stmt_retry;
210 } else {
211 pdo_pgsql_error_stmt(stmt, status, sqlstate);
212 return 0;
213 }
214 }
215 }
216 }
217 S->result = PQexecPrepared(H->server, S->stmt_name,
218 stmt->bound_params ?
219 zend_hash_num_elements(stmt->bound_params) :
220 0,
221 (const char**)S->param_values,
222 S->param_lengths,
223 S->param_formats,
224 0);
225 } else if (stmt->supports_placeholders == PDO_PLACEHOLDER_NAMED) {
226 /* execute query with parameters */
227 S->result = PQexecParams(H->server, ZSTR_VAL(S->query),
228 stmt->bound_params ? zend_hash_num_elements(stmt->bound_params) : 0,
229 S->param_types,
230 (const char**)S->param_values,
231 S->param_lengths,
232 S->param_formats,
233 0);
234 } else {
235 /* execute plain query (with embedded parameters) */
236 S->result = PQexec(H->server, ZSTR_VAL(stmt->active_query_string));
237 }
238 status = PQresultStatus(S->result);
239
240 if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK) {
241 pdo_pgsql_error_stmt(stmt, status, pdo_pgsql_sqlstate(S->result));
242 return 0;
243 }
244
245 stmt->column_count = (int) PQnfields(S->result);
246 if (S->cols == NULL) {
247 S->cols = ecalloc(stmt->column_count, sizeof(pdo_pgsql_column));
248 }
249
250 if (status == PGRES_COMMAND_OK) {
251 stmt->row_count = ZEND_ATOL(PQcmdTuples(S->result));
252 H->pgoid = PQoidValue(S->result);
253 } else {
254 stmt->row_count = (zend_long)PQntuples(S->result);
255 }
256
257 if (in_trans && !stmt->dbh->methods->in_transaction(stmt->dbh)) {
258 pdo_pgsql_close_lob_streams(stmt->dbh);
259 }
260
261 return 1;
262 }
263
pgsql_stmt_param_hook(pdo_stmt_t * stmt,struct pdo_bound_param_data * param,enum pdo_param_event event_type)264 static int pgsql_stmt_param_hook(pdo_stmt_t *stmt, struct pdo_bound_param_data *param,
265 enum pdo_param_event event_type)
266 {
267 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
268
269 if (stmt->supports_placeholders == PDO_PLACEHOLDER_NAMED && param->is_param) {
270 switch (event_type) {
271 case PDO_PARAM_EVT_FREE:
272 if (param->driver_data) {
273 efree(param->driver_data);
274 }
275 break;
276
277 case PDO_PARAM_EVT_NORMALIZE:
278 /* decode name from $1, $2 into 0, 1 etc. */
279 if (param->name) {
280 if (ZSTR_VAL(param->name)[0] == '$') {
281 param->paramno = ZEND_ATOL(ZSTR_VAL(param->name) + 1);
282 } else {
283 /* resolve parameter name to rewritten name */
284 zend_string *namevar;
285
286 if (stmt->bound_param_map && (namevar = zend_hash_find_ptr(stmt->bound_param_map,
287 param->name)) != NULL) {
288 param->paramno = ZEND_ATOL(ZSTR_VAL(namevar) + 1);
289 param->paramno--;
290 } else {
291 pdo_pgsql_error_stmt_msg(stmt, 0, "HY093", ZSTR_VAL(param->name));
292 return 0;
293 }
294 }
295 }
296 break;
297
298 case PDO_PARAM_EVT_ALLOC:
299 if (!stmt->bound_param_map) {
300 return 1;
301 }
302 if (!zend_hash_index_exists(stmt->bound_param_map, param->paramno)) {
303 pdo_pgsql_error_stmt_msg(stmt, 0, "HY093", "parameter was not defined");
304 return 0;
305 }
306 ZEND_FALLTHROUGH;
307 case PDO_PARAM_EVT_EXEC_POST:
308 case PDO_PARAM_EVT_FETCH_PRE:
309 case PDO_PARAM_EVT_FETCH_POST:
310 /* work is handled by EVT_NORMALIZE */
311 return 1;
312
313 case PDO_PARAM_EVT_EXEC_PRE:
314 if (!stmt->bound_param_map) {
315 return 1;
316 }
317 if (!S->param_values) {
318 S->param_values = ecalloc(
319 zend_hash_num_elements(stmt->bound_param_map),
320 sizeof(char*));
321 S->param_lengths = ecalloc(
322 zend_hash_num_elements(stmt->bound_param_map),
323 sizeof(int));
324 S->param_formats = ecalloc(
325 zend_hash_num_elements(stmt->bound_param_map),
326 sizeof(int));
327 S->param_types = ecalloc(
328 zend_hash_num_elements(stmt->bound_param_map),
329 sizeof(Oid));
330 }
331 if (param->paramno >= 0) {
332 zval *parameter;
333
334 /*
335 if (param->paramno >= zend_hash_num_elements(stmt->bound_params)) {
336 pdo_raise_impl_error(stmt->dbh, stmt, "HY093", "parameter was not defined");
337 return 0;
338 }
339 */
340
341 if (Z_ISREF(param->parameter)) {
342 parameter = Z_REFVAL(param->parameter);
343 } else {
344 parameter = ¶m->parameter;
345 }
346
347 if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_LOB &&
348 Z_TYPE_P(parameter) == IS_RESOURCE) {
349 php_stream *stm;
350 php_stream_from_zval_no_verify(stm, parameter);
351 if (stm) {
352 if (php_stream_is(stm, &pdo_pgsql_lob_stream_ops)) {
353 struct pdo_pgsql_lob_self *self = (struct pdo_pgsql_lob_self*)stm->abstract;
354 pdo_pgsql_bound_param *P = param->driver_data;
355
356 if (P == NULL) {
357 P = ecalloc(1, sizeof(*P));
358 param->driver_data = P;
359 }
360 P->oid = htonl(self->oid);
361 S->param_values[param->paramno] = (char*)&P->oid;
362 S->param_lengths[param->paramno] = sizeof(P->oid);
363 S->param_formats[param->paramno] = 1;
364 S->param_types[param->paramno] = OIDOID;
365 return 1;
366 } else {
367 zend_string *str = php_stream_copy_to_mem(stm, PHP_STREAM_COPY_ALL, 0);
368 if (str != NULL) {
369 ZVAL_STR(parameter, str);
370 } else {
371 ZVAL_EMPTY_STRING(parameter);
372 }
373 }
374 } else {
375 /* expected a stream resource */
376 pdo_pgsql_error_stmt(stmt, PGRES_FATAL_ERROR, "HY105");
377 return 0;
378 }
379 }
380
381 if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_NULL ||
382 Z_TYPE_P(parameter) == IS_NULL) {
383 S->param_values[param->paramno] = NULL;
384 S->param_lengths[param->paramno] = 0;
385 } else if (Z_TYPE_P(parameter) == IS_FALSE || Z_TYPE_P(parameter) == IS_TRUE) {
386 S->param_values[param->paramno] = Z_TYPE_P(parameter) == IS_TRUE ? "t" : "f";
387 S->param_lengths[param->paramno] = 1;
388 S->param_formats[param->paramno] = 0;
389 } else {
390 convert_to_string(parameter);
391 S->param_values[param->paramno] = Z_STRVAL_P(parameter);
392 S->param_lengths[param->paramno] = Z_STRLEN_P(parameter);
393 S->param_formats[param->paramno] = 0;
394 }
395
396 if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_LOB) {
397 S->param_types[param->paramno] = 0;
398 S->param_formats[param->paramno] = 1;
399 } else {
400 S->param_types[param->paramno] = 0;
401 }
402 }
403 break;
404 }
405 } else if (param->is_param && event_type == PDO_PARAM_EVT_NORMALIZE) {
406 /* We need to manually convert to a pg native boolean value */
407 if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_BOOL &&
408 ((param->param_type & PDO_PARAM_INPUT_OUTPUT) != PDO_PARAM_INPUT_OUTPUT)) {
409 const char *s = zend_is_true(¶m->parameter) ? "t" : "f";
410 param->param_type = PDO_PARAM_STR;
411 zval_ptr_dtor(¶m->parameter);
412 ZVAL_STRINGL(¶m->parameter, s, 1);
413 }
414 }
415 return 1;
416 }
417
pgsql_stmt_fetch(pdo_stmt_t * stmt,enum pdo_fetch_orientation ori,zend_long offset)418 static int pgsql_stmt_fetch(pdo_stmt_t *stmt,
419 enum pdo_fetch_orientation ori, zend_long offset)
420 {
421 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
422
423 if (S->cursor_name) {
424 char *ori_str = NULL;
425 char *q = NULL;
426 ExecStatusType status;
427
428 switch (ori) {
429 case PDO_FETCH_ORI_NEXT: spprintf(&ori_str, 0, "NEXT"); break;
430 case PDO_FETCH_ORI_PRIOR: spprintf(&ori_str, 0, "BACKWARD"); break;
431 case PDO_FETCH_ORI_FIRST: spprintf(&ori_str, 0, "FIRST"); break;
432 case PDO_FETCH_ORI_LAST: spprintf(&ori_str, 0, "LAST"); break;
433 case PDO_FETCH_ORI_ABS: spprintf(&ori_str, 0, "ABSOLUTE " ZEND_LONG_FMT, offset); break;
434 case PDO_FETCH_ORI_REL: spprintf(&ori_str, 0, "RELATIVE " ZEND_LONG_FMT, offset); break;
435 default:
436 return 0;
437 }
438
439 if(S->result) {
440 PQclear(S->result);
441 S->result = NULL;
442 }
443
444 spprintf(&q, 0, "FETCH %s FROM %s", ori_str, S->cursor_name);
445 efree(ori_str);
446 S->result = PQexec(S->H->server, q);
447 efree(q);
448 status = PQresultStatus(S->result);
449
450 if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK) {
451 pdo_pgsql_error_stmt(stmt, status, pdo_pgsql_sqlstate(S->result));
452 return 0;
453 }
454
455 if (PQntuples(S->result)) {
456 S->current_row = 1;
457 return 1;
458 } else {
459 return 0;
460 }
461 } else {
462 if (S->current_row < stmt->row_count) {
463 S->current_row++;
464 return 1;
465 } else {
466 return 0;
467 }
468 }
469 }
470
pgsql_stmt_describe(pdo_stmt_t * stmt,int colno)471 static int pgsql_stmt_describe(pdo_stmt_t *stmt, int colno)
472 {
473 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
474 struct pdo_column_data *cols = stmt->columns;
475 char *str;
476
477 if (!S->result) {
478 return 0;
479 }
480
481 str = PQfname(S->result, colno);
482 cols[colno].name = zend_string_init(str, strlen(str), 0);
483 cols[colno].maxlen = PQfsize(S->result, colno);
484 cols[colno].precision = PQfmod(S->result, colno);
485 S->cols[colno].pgsql_type = PQftype(S->result, colno);
486
487 return 1;
488 }
489
pgsql_stmt_get_col(pdo_stmt_t * stmt,int colno,zval * result,enum pdo_param_type * type)490 static int pgsql_stmt_get_col(pdo_stmt_t *stmt, int colno, zval *result, enum pdo_param_type *type)
491 {
492 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
493 if (!S->result) {
494 return 0;
495 }
496
497 /* We have already increased count by 1 in pgsql_stmt_fetch() */
498 if (PQgetisnull(S->result, S->current_row - 1, colno)) { /* Check if we got NULL */
499 ZVAL_NULL(result);
500 } else {
501 char *ptr = PQgetvalue(S->result, S->current_row - 1, colno);
502 size_t len = PQgetlength(S->result, S->current_row - 1, colno);
503
504 switch (S->cols[colno].pgsql_type) {
505 case BOOLOID:
506 ZVAL_BOOL(result, *ptr == 't');
507 break;
508
509 case INT2OID:
510 case INT4OID:
511 #if SIZEOF_ZEND_LONG >= 8
512 case INT8OID:
513 #endif
514 ZVAL_LONG(result, ZEND_ATOL(ptr));
515 break;
516
517 case OIDOID: {
518 char *end_ptr;
519 Oid oid = (Oid)strtoul(ptr, &end_ptr, 10);
520 if (type && *type == PDO_PARAM_LOB) {
521 /* If column was bound as LOB, return a stream. */
522 int loid = lo_open(S->H->server, oid, INV_READ);
523 if (loid >= 0) {
524 php_stream *stream = pdo_pgsql_create_lob_stream(&stmt->database_object_handle, loid, oid);
525 if (stream) {
526 php_stream_to_zval(stream, result);
527 return 1;
528 }
529 }
530 return 0;
531 } else {
532 /* Otherwise return OID as integer. */
533 ZVAL_LONG(result, oid);
534 }
535 break;
536 }
537
538 case BYTEAOID: {
539 size_t tmp_len;
540 char *tmp_ptr = (char *)PQunescapeBytea((unsigned char *) ptr, &tmp_len);
541 if (!tmp_ptr) {
542 /* PQunescapeBytea returned an error */
543 return 0;
544 }
545
546 zend_string *str = zend_string_init(tmp_ptr, tmp_len, 0);
547 php_stream *stream = php_stream_memory_open(TEMP_STREAM_READONLY, str);
548 php_stream_to_zval(stream, result);
549 zend_string_release(str);
550 PQfreemem(tmp_ptr);
551 break;
552 }
553
554 default:
555 ZVAL_STRINGL_FAST(result, ptr, len);
556 break;
557 }
558 }
559
560 return 1;
561 }
562
pdo_pgsql_translate_oid_to_table(Oid oid,PGconn * conn)563 static zend_always_inline char * pdo_pgsql_translate_oid_to_table(Oid oid, PGconn *conn)
564 {
565 char *table_name = NULL;
566 PGresult *tmp_res;
567 char *querystr = NULL;
568
569 spprintf(&querystr, 0, "SELECT RELNAME FROM PG_CLASS WHERE OID=%d", oid);
570
571 if ((tmp_res = PQexec(conn, querystr)) == NULL || PQresultStatus(tmp_res) != PGRES_TUPLES_OK) {
572 if (tmp_res) {
573 PQclear(tmp_res);
574 }
575 efree(querystr);
576 return 0;
577 }
578 efree(querystr);
579
580 if (1 == PQgetisnull(tmp_res, 0, 0) || (table_name = PQgetvalue(tmp_res, 0, 0)) == NULL) {
581 PQclear(tmp_res);
582 return 0;
583 }
584
585 table_name = estrdup(table_name);
586
587 PQclear(tmp_res);
588 return table_name;
589 }
590
pgsql_stmt_get_column_meta(pdo_stmt_t * stmt,zend_long colno,zval * return_value)591 static int pgsql_stmt_get_column_meta(pdo_stmt_t *stmt, zend_long colno, zval *return_value)
592 {
593 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
594 PGresult *res;
595 char *q=NULL;
596 ExecStatusType status;
597 Oid table_oid;
598 char *table_name=NULL;
599
600 if (!S->result) {
601 return FAILURE;
602 }
603
604 if (colno >= stmt->column_count) {
605 return FAILURE;
606 }
607
608 array_init(return_value);
609 add_assoc_long(return_value, "pgsql:oid", S->cols[colno].pgsql_type);
610
611 table_oid = PQftable(S->result, colno);
612 add_assoc_long(return_value, "pgsql:table_oid", table_oid);
613 table_name = pdo_pgsql_translate_oid_to_table(table_oid, S->H->server);
614 if (table_name) {
615 add_assoc_string(return_value, "table", table_name);
616 efree(table_name);
617 }
618
619 switch (S->cols[colno].pgsql_type) {
620 case BOOLOID:
621 add_assoc_string(return_value, "native_type", BOOLLABEL);
622 break;
623 case BYTEAOID:
624 add_assoc_string(return_value, "native_type", BYTEALABEL);
625 break;
626 case INT8OID:
627 add_assoc_string(return_value, "native_type", INT8LABEL);
628 break;
629 case INT2OID:
630 add_assoc_string(return_value, "native_type", INT2LABEL);
631 break;
632 case INT4OID:
633 add_assoc_string(return_value, "native_type", INT4LABEL);
634 break;
635 case TEXTOID:
636 add_assoc_string(return_value, "native_type", TEXTLABEL);
637 break;
638 case VARCHAROID:
639 add_assoc_string(return_value, "native_type", VARCHARLABEL);
640 break;
641 case DATEOID:
642 add_assoc_string(return_value, "native_type", DATELABEL);
643 break;
644 case TIMESTAMPOID:
645 add_assoc_string(return_value, "native_type", TIMESTAMPLABEL);
646 break;
647 default:
648 /* Fetch metadata from Postgres system catalogue */
649 spprintf(&q, 0, "SELECT TYPNAME FROM PG_TYPE WHERE OID=%u", S->cols[colno].pgsql_type);
650 res = PQexec(S->H->server, q);
651 efree(q);
652 status = PQresultStatus(res);
653 if (status == PGRES_TUPLES_OK && 1 == PQntuples(res)) {
654 add_assoc_string(return_value, "native_type", PQgetvalue(res, 0, 0));
655 }
656 PQclear(res);
657 }
658
659 enum pdo_param_type param_type;
660 switch (S->cols[colno].pgsql_type) {
661 case BOOLOID:
662 param_type = PDO_PARAM_BOOL;
663 break;
664 case INT2OID:
665 case INT4OID:
666 case INT8OID:
667 param_type = PDO_PARAM_INT;
668 break;
669 case OIDOID:
670 case BYTEAOID:
671 param_type = PDO_PARAM_LOB;
672 break;
673 default:
674 param_type = PDO_PARAM_STR;
675 }
676 add_assoc_long(return_value, "pdo_type", param_type);
677
678 return 1;
679 }
680
pdo_pgsql_stmt_cursor_closer(pdo_stmt_t * stmt)681 static int pdo_pgsql_stmt_cursor_closer(pdo_stmt_t *stmt)
682 {
683 return 1;
684 }
685
686 const struct pdo_stmt_methods pgsql_stmt_methods = {
687 pgsql_stmt_dtor,
688 pgsql_stmt_execute,
689 pgsql_stmt_fetch,
690 pgsql_stmt_describe,
691 pgsql_stmt_get_col,
692 pgsql_stmt_param_hook,
693 NULL, /* set_attr */
694 NULL, /* get_attr */
695 pgsql_stmt_get_column_meta,
696 NULL, /* next_rowset */
697 pdo_pgsql_stmt_cursor_closer
698 };
699
