1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 7 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2017 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Edin Kadribasic <edink@emini.dk> |
16 | Ilia Alshanestsky <ilia@prohost.org> |
17 | Wez Furlong <wez@php.net> |
18 +----------------------------------------------------------------------+
19 */
20
21 /* $Id$ */
22
23 #ifdef HAVE_CONFIG_H
24 #include "config.h"
25 #endif
26
27 #include "php.h"
28 #include "php_ini.h"
29 #include "ext/standard/info.h"
30 #include "pdo/php_pdo.h"
31 #include "pdo/php_pdo_driver.h"
32 #include "php_pdo_pgsql.h"
33 #include "php_pdo_pgsql_int.h"
34 #if HAVE_NETINET_IN_H
35 #include <netinet/in.h>
36 #endif
37
38 /* from postgresql/src/include/catalog/pg_type.h */
39 #define BOOLLABEL "bool"
40 #define BOOLOID 16
41 #define BYTEALABEL "bytea"
42 #define BYTEAOID 17
43 #define DATELABEL "date"
44 #define DATEOID 1082
45 #define INT2LABEL "int2"
46 #define INT2OID 21
47 #define INT4LABEL "int4"
48 #define INT4OID 23
49 #define INT8LABEL "int8"
50 #define INT8OID 20
51 #define OIDOID 26
52 #define TEXTLABEL "text"
53 #define TEXTOID 25
54 #define TIMESTAMPLABEL "timestamp"
55 #define TIMESTAMPOID 1114
56 #define VARCHARLABEL "varchar"
57 #define VARCHAROID 1043
58
59
60
pgsql_stmt_dtor(pdo_stmt_t * stmt)61 static int pgsql_stmt_dtor(pdo_stmt_t *stmt)
62 {
63 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
64 zend_bool server_obj_usable = !Z_ISUNDEF(stmt->database_object_handle)
65 && IS_OBJ_VALID(EG(objects_store).object_buckets[Z_OBJ_HANDLE(stmt->database_object_handle)])
66 && !(GC_FLAGS(Z_OBJ(stmt->database_object_handle)) & IS_OBJ_FREE_CALLED);
67
68 if (S->result) {
69 /* free the resource */
70 PQclear(S->result);
71 S->result = NULL;
72 }
73
74 if (S->stmt_name) {
75 if (S->is_prepared && server_obj_usable) {
76 pdo_pgsql_db_handle *H = S->H;
77 char *q = NULL;
78 PGresult *res;
79
80 spprintf(&q, 0, "DEALLOCATE %s", S->stmt_name);
81 res = PQexec(H->server, q);
82 efree(q);
83 if (res) {
84 PQclear(res);
85 }
86 }
87 efree(S->stmt_name);
88 S->stmt_name = NULL;
89 }
90 if (S->param_lengths) {
91 efree(S->param_lengths);
92 S->param_lengths = NULL;
93 }
94 if (S->param_values) {
95 efree(S->param_values);
96 S->param_values = NULL;
97 }
98 if (S->param_formats) {
99 efree(S->param_formats);
100 S->param_formats = NULL;
101 }
102 if (S->param_types) {
103 efree(S->param_types);
104 S->param_types = NULL;
105 }
106 if (S->query) {
107 efree(S->query);
108 S->query = NULL;
109 }
110
111 if (S->cursor_name) {
112 if (server_obj_usable) {
113 pdo_pgsql_db_handle *H = S->H;
114 char *q = NULL;
115 PGresult *res;
116
117 spprintf(&q, 0, "CLOSE %s", S->cursor_name);
118 res = PQexec(H->server, q);
119 efree(q);
120 if (res) PQclear(res);
121 }
122 efree(S->cursor_name);
123 S->cursor_name = NULL;
124 }
125
126 if(S->cols) {
127 efree(S->cols);
128 S->cols = NULL;
129 }
130 efree(S);
131 stmt->driver_data = NULL;
132 return 1;
133 }
134
pgsql_stmt_execute(pdo_stmt_t * stmt)135 static int pgsql_stmt_execute(pdo_stmt_t *stmt)
136 {
137 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
138 pdo_pgsql_db_handle *H = S->H;
139 ExecStatusType status;
140
141 /* ensure that we free any previous unfetched results */
142 if(S->result) {
143 PQclear(S->result);
144 S->result = NULL;
145 }
146
147 S->current_row = 0;
148
149 if (S->cursor_name) {
150 char *q = NULL;
151
152 if (S->is_prepared) {
153 spprintf(&q, 0, "CLOSE %s", S->cursor_name);
154 S->result = PQexec(H->server, q);
155 efree(q);
156 }
157
158 spprintf(&q, 0, "DECLARE %s SCROLL CURSOR WITH HOLD FOR %s", S->cursor_name, stmt->active_query_string);
159 S->result = PQexec(H->server, q);
160 efree(q);
161
162 /* check if declare failed */
163 status = PQresultStatus(S->result);
164 if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK) {
165 pdo_pgsql_error_stmt(stmt, status, pdo_pgsql_sqlstate(S->result));
166 return 0;
167 }
168
169 /* the cursor was declared correctly */
170 S->is_prepared = 1;
171
172 /* fetch to be able to get the number of tuples later, but don't advance the cursor pointer */
173 spprintf(&q, 0, "FETCH FORWARD 0 FROM %s", S->cursor_name);
174 S->result = PQexec(H->server, q);
175 efree(q);
176 } else if (S->stmt_name) {
177 /* using a prepared statement */
178
179 if (!S->is_prepared) {
180 stmt_retry:
181 /* we deferred the prepare until now, because we didn't
182 * know anything about the parameter types; now we do */
183 S->result = PQprepare(H->server, S->stmt_name, S->query,
184 stmt->bound_params ? zend_hash_num_elements(stmt->bound_params) : 0,
185 S->param_types);
186 status = PQresultStatus(S->result);
187 switch (status) {
188 case PGRES_COMMAND_OK:
189 case PGRES_TUPLES_OK:
190 /* it worked */
191 S->is_prepared = 1;
192 PQclear(S->result);
193 break;
194 default: {
195 char *sqlstate = pdo_pgsql_sqlstate(S->result);
196 /* 42P05 means that the prepared statement already existed. this can happen if you use
197 * a connection pooling software line pgpool which doesn't close the db-connection once
198 * php disconnects. if php dies (no chance to run RSHUTDOWN) during execution it has no
199 * chance to DEALLOCATE the prepared statements it has created. so, if we hit a 42P05 we
200 * deallocate it and retry ONCE (thies 2005.12.15)
201 */
202 if (sqlstate && !strcmp(sqlstate, "42P05")) {
203 char buf[100]; /* stmt_name == "pdo_crsr_%08x" */
204 PGresult *res;
205 snprintf(buf, sizeof(buf), "DEALLOCATE %s", S->stmt_name);
206 res = PQexec(H->server, buf);
207 if (res) {
208 PQclear(res);
209 }
210 goto stmt_retry;
211 } else {
212 pdo_pgsql_error_stmt(stmt, status, sqlstate);
213 return 0;
214 }
215 }
216 }
217 }
218 S->result = PQexecPrepared(H->server, S->stmt_name,
219 stmt->bound_params ?
220 zend_hash_num_elements(stmt->bound_params) :
221 0,
222 (const char**)S->param_values,
223 S->param_lengths,
224 S->param_formats,
225 0);
226 } else if (stmt->supports_placeholders == PDO_PLACEHOLDER_NAMED) {
227 /* execute query with parameters */
228 S->result = PQexecParams(H->server, S->query,
229 stmt->bound_params ? zend_hash_num_elements(stmt->bound_params) : 0,
230 S->param_types,
231 (const char**)S->param_values,
232 S->param_lengths,
233 S->param_formats,
234 0);
235 } else {
236 /* execute plain query (with embedded parameters) */
237 S->result = PQexec(H->server, stmt->active_query_string);
238 }
239 status = PQresultStatus(S->result);
240
241 if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK) {
242 pdo_pgsql_error_stmt(stmt, status, pdo_pgsql_sqlstate(S->result));
243 return 0;
244 }
245
246 if (!stmt->executed && (!stmt->column_count || S->cols == NULL)) {
247 stmt->column_count = (int) PQnfields(S->result);
248 S->cols = ecalloc(stmt->column_count, sizeof(pdo_pgsql_column));
249 }
250
251 if (status == PGRES_COMMAND_OK) {
252 ZEND_ATOL(stmt->row_count, PQcmdTuples(S->result));
253 H->pgoid = PQoidValue(S->result);
254 } else {
255 stmt->row_count = (zend_long)PQntuples(S->result);
256 }
257
258 return 1;
259 }
260
pgsql_stmt_param_hook(pdo_stmt_t * stmt,struct pdo_bound_param_data * param,enum pdo_param_event event_type)261 static int pgsql_stmt_param_hook(pdo_stmt_t *stmt, struct pdo_bound_param_data *param,
262 enum pdo_param_event event_type)
263 {
264 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
265
266 if (stmt->supports_placeholders == PDO_PLACEHOLDER_NAMED && param->is_param) {
267 switch (event_type) {
268 case PDO_PARAM_EVT_FREE:
269 if (param->driver_data) {
270 efree(param->driver_data);
271 }
272 break;
273
274 case PDO_PARAM_EVT_NORMALIZE:
275 /* decode name from $1, $2 into 0, 1 etc. */
276 if (param->name) {
277 if (ZSTR_VAL(param->name)[0] == '$') {
278 ZEND_ATOL(param->paramno, ZSTR_VAL(param->name) + 1);
279 } else {
280 /* resolve parameter name to rewritten name */
281 char *namevar;
282
283 if (stmt->bound_param_map && (namevar = zend_hash_find_ptr(stmt->bound_param_map,
284 param->name)) != NULL) {
285 ZEND_ATOL(param->paramno, namevar + 1);
286 param->paramno--;
287 } else {
288 pdo_raise_impl_error(stmt->dbh, stmt, "HY093", ZSTR_VAL(param->name));
289 return 0;
290 }
291 }
292 }
293 break;
294
295 case PDO_PARAM_EVT_ALLOC:
296 if (!stmt->bound_param_map) {
297 return 1;
298 }
299 if (!zend_hash_index_exists(stmt->bound_param_map, param->paramno)) {
300 pdo_raise_impl_error(stmt->dbh, stmt, "HY093", "parameter was not defined");
301 return 0;
302 }
303 case PDO_PARAM_EVT_EXEC_POST:
304 case PDO_PARAM_EVT_FETCH_PRE:
305 case PDO_PARAM_EVT_FETCH_POST:
306 /* work is handled by EVT_NORMALIZE */
307 return 1;
308
309 case PDO_PARAM_EVT_EXEC_PRE:
310 if (!stmt->bound_param_map) {
311 return 1;
312 }
313 if (!S->param_values) {
314 S->param_values = ecalloc(
315 zend_hash_num_elements(stmt->bound_param_map),
316 sizeof(char*));
317 S->param_lengths = ecalloc(
318 zend_hash_num_elements(stmt->bound_param_map),
319 sizeof(int));
320 S->param_formats = ecalloc(
321 zend_hash_num_elements(stmt->bound_param_map),
322 sizeof(int));
323 S->param_types = ecalloc(
324 zend_hash_num_elements(stmt->bound_param_map),
325 sizeof(Oid));
326 }
327 if (param->paramno >= 0) {
328 zval *parameter;
329
330 /*
331 if (param->paramno >= zend_hash_num_elements(stmt->bound_params)) {
332 pdo_raise_impl_error(stmt->dbh, stmt, "HY093", "parameter was not defined");
333 return 0;
334 }
335 */
336
337 if (Z_ISREF(param->parameter)) {
338 parameter = Z_REFVAL(param->parameter);
339 } else {
340 parameter = ¶m->parameter;
341 }
342
343 if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_LOB &&
344 Z_TYPE_P(parameter) == IS_RESOURCE) {
345 php_stream *stm;
346 php_stream_from_zval_no_verify(stm, parameter);
347 if (stm) {
348 if (php_stream_is(stm, &pdo_pgsql_lob_stream_ops)) {
349 struct pdo_pgsql_lob_self *self = (struct pdo_pgsql_lob_self*)stm->abstract;
350 pdo_pgsql_bound_param *P = param->driver_data;
351
352 if (P == NULL) {
353 P = ecalloc(1, sizeof(*P));
354 param->driver_data = P;
355 }
356 P->oid = htonl(self->oid);
357 S->param_values[param->paramno] = (char*)&P->oid;
358 S->param_lengths[param->paramno] = sizeof(P->oid);
359 S->param_formats[param->paramno] = 1;
360 S->param_types[param->paramno] = OIDOID;
361 return 1;
362 } else {
363 zend_string *str = php_stream_copy_to_mem(stm, PHP_STREAM_COPY_ALL, 0);
364 if (str != NULL) {
365 //??SEPARATE_ZVAL_IF_NOT_REF(¶m->parameter);
366 ZVAL_STR(parameter, str);
367 } else {
368 ZVAL_EMPTY_STRING(parameter);
369 }
370 }
371 } else {
372 /* expected a stream resource */
373 pdo_pgsql_error_stmt(stmt, PGRES_FATAL_ERROR, "HY105");
374 return 0;
375 }
376 }
377
378 if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_NULL ||
379 Z_TYPE_P(parameter) == IS_NULL) {
380 S->param_values[param->paramno] = NULL;
381 S->param_lengths[param->paramno] = 0;
382 } else if (Z_TYPE_P(parameter) == IS_FALSE || Z_TYPE_P(parameter) == IS_TRUE) {
383 S->param_values[param->paramno] = Z_TYPE_P(parameter) == IS_TRUE ? "t" : "f";
384 S->param_lengths[param->paramno] = 1;
385 S->param_formats[param->paramno] = 0;
386 } else {
387 //SEPARATE_ZVAL_IF_NOT_REF(¶m->parameter);
388 convert_to_string_ex(parameter);
389 S->param_values[param->paramno] = Z_STRVAL_P(parameter);
390 S->param_lengths[param->paramno] = Z_STRLEN_P(parameter);
391 S->param_formats[param->paramno] = 0;
392 }
393
394 if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_LOB) {
395 S->param_types[param->paramno] = 0;
396 S->param_formats[param->paramno] = 1;
397 } else {
398 S->param_types[param->paramno] = 0;
399 }
400 }
401 break;
402 }
403 } else if (param->is_param) {
404 /* We need to manually convert to a pg native boolean value */
405 if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_BOOL &&
406 ((param->param_type & PDO_PARAM_INPUT_OUTPUT) != PDO_PARAM_INPUT_OUTPUT)) {
407 const char *s = zend_is_true(¶m->parameter) ? "t" : "f";
408 param->param_type = PDO_PARAM_STR;
409 zval_ptr_dtor(¶m->parameter);
410 ZVAL_STRINGL(¶m->parameter, s, 1);
411 }
412 }
413 return 1;
414 }
415
pgsql_stmt_fetch(pdo_stmt_t * stmt,enum pdo_fetch_orientation ori,zend_long offset)416 static int pgsql_stmt_fetch(pdo_stmt_t *stmt,
417 enum pdo_fetch_orientation ori, zend_long offset)
418 {
419 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
420
421 if (S->cursor_name) {
422 char *ori_str = NULL;
423 char *q = NULL;
424 ExecStatusType status;
425
426 switch (ori) {
427 case PDO_FETCH_ORI_NEXT: spprintf(&ori_str, 0, "NEXT"); break;
428 case PDO_FETCH_ORI_PRIOR: spprintf(&ori_str, 0, "BACKWARD"); break;
429 case PDO_FETCH_ORI_FIRST: spprintf(&ori_str, 0, "FIRST"); break;
430 case PDO_FETCH_ORI_LAST: spprintf(&ori_str, 0, "LAST"); break;
431 case PDO_FETCH_ORI_ABS: spprintf(&ori_str, 0, "ABSOLUTE %pd", offset); break;
432 case PDO_FETCH_ORI_REL: spprintf(&ori_str, 0, "RELATIVE %pd", offset); break;
433 default:
434 return 0;
435 }
436
437 spprintf(&q, 0, "FETCH %s FROM %s", ori_str, S->cursor_name);
438 efree(ori_str);
439 S->result = PQexec(S->H->server, q);
440 efree(q);
441 status = PQresultStatus(S->result);
442
443 if (status != PGRES_COMMAND_OK && status != PGRES_TUPLES_OK) {
444 pdo_pgsql_error_stmt(stmt, status, pdo_pgsql_sqlstate(S->result));
445 return 0;
446 }
447
448 if (PQntuples(S->result)) {
449 S->current_row = 1;
450 return 1;
451 } else {
452 return 0;
453 }
454 } else {
455 if (S->current_row < stmt->row_count) {
456 S->current_row++;
457 return 1;
458 } else {
459 return 0;
460 }
461 }
462 }
463
pgsql_stmt_describe(pdo_stmt_t * stmt,int colno)464 static int pgsql_stmt_describe(pdo_stmt_t *stmt, int colno)
465 {
466 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
467 struct pdo_column_data *cols = stmt->columns;
468 struct pdo_bound_param_data *param;
469 char *str;
470
471 if (!S->result) {
472 return 0;
473 }
474
475 str = PQfname(S->result, colno);
476 cols[colno].name = zend_string_init(str, strlen(str), 0);
477 cols[colno].maxlen = PQfsize(S->result, colno);
478 cols[colno].precision = PQfmod(S->result, colno);
479 S->cols[colno].pgsql_type = PQftype(S->result, colno);
480
481 switch (S->cols[colno].pgsql_type) {
482
483 case BOOLOID:
484 cols[colno].param_type = PDO_PARAM_BOOL;
485 break;
486
487 case OIDOID:
488 /* did the user bind the column as a LOB ? */
489 if (stmt->bound_columns && (
490 (param = zend_hash_index_find_ptr(stmt->bound_columns, colno)) != NULL ||
491 (param = zend_hash_find_ptr(stmt->bound_columns, cols[colno].name)) != NULL)) {
492
493 if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_LOB) {
494 cols[colno].param_type = PDO_PARAM_LOB;
495 break;
496 }
497 }
498 cols[colno].param_type = PDO_PARAM_INT;
499 break;
500
501 case INT2OID:
502 case INT4OID:
503 cols[colno].param_type = PDO_PARAM_INT;
504 break;
505
506 case INT8OID:
507 if (sizeof(zend_long)>=8) {
508 cols[colno].param_type = PDO_PARAM_INT;
509 } else {
510 cols[colno].param_type = PDO_PARAM_STR;
511 }
512 break;
513
514 case BYTEAOID:
515 cols[colno].param_type = PDO_PARAM_LOB;
516 break;
517
518 default:
519 cols[colno].param_type = PDO_PARAM_STR;
520 }
521
522 return 1;
523 }
524
pgsql_stmt_get_col(pdo_stmt_t * stmt,int colno,char ** ptr,zend_ulong * len,int * caller_frees)525 static int pgsql_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, zend_ulong *len, int *caller_frees )
526 {
527 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
528 struct pdo_column_data *cols = stmt->columns;
529 size_t tmp_len;
530
531 if (!S->result) {
532 return 0;
533 }
534
535 /* We have already increased count by 1 in pgsql_stmt_fetch() */
536 if (PQgetisnull(S->result, S->current_row - 1, colno)) { /* Check if we got NULL */
537 *ptr = NULL;
538 *len = 0;
539 } else {
540 *ptr = PQgetvalue(S->result, S->current_row - 1, colno);
541 *len = PQgetlength(S->result, S->current_row - 1, colno);
542
543 switch (cols[colno].param_type) {
544
545 case PDO_PARAM_INT:
546 ZEND_ATOL(S->cols[colno].intval, *ptr);
547 *ptr = (char *) &(S->cols[colno].intval);
548 *len = sizeof(zend_long);
549 break;
550
551 case PDO_PARAM_BOOL:
552 S->cols[colno].boolval = **ptr == 't' ? 1: 0;
553 *ptr = (char *) &(S->cols[colno].boolval);
554 *len = sizeof(zend_bool);
555 break;
556
557 case PDO_PARAM_LOB:
558 if (S->cols[colno].pgsql_type == OIDOID) {
559 /* ooo, a real large object */
560 char *end_ptr;
561 Oid oid = (Oid)strtoul(*ptr, &end_ptr, 10);
562 int loid = lo_open(S->H->server, oid, INV_READ);
563 if (loid >= 0) {
564 *ptr = (char*)pdo_pgsql_create_lob_stream(&stmt->database_object_handle, loid, oid);
565 *len = 0;
566 return *ptr ? 1 : 0;
567 }
568 *ptr = NULL;
569 *len = 0;
570 return 0;
571 } else {
572 char *tmp_ptr = (char *)PQunescapeBytea((unsigned char *)*ptr, &tmp_len);
573 if (!tmp_ptr) {
574 /* PQunescapeBytea returned an error */
575 *len = 0;
576 return 0;
577 }
578 if (!tmp_len) {
579 /* Empty string, return as empty stream */
580 *ptr = (char *)php_stream_memory_open(TEMP_STREAM_READONLY, "", 0);
581 PQfreemem(tmp_ptr);
582 *len = 0;
583 } else {
584 *ptr = estrndup(tmp_ptr, tmp_len);
585 PQfreemem(tmp_ptr);
586 *len = tmp_len;
587 *caller_frees = 1;
588 }
589 }
590 break;
591 case PDO_PARAM_NULL:
592 case PDO_PARAM_STR:
593 case PDO_PARAM_STMT:
594 case PDO_PARAM_INPUT_OUTPUT:
595 case PDO_PARAM_ZVAL:
596 default:
597 break;
598 }
599 }
600
601 return 1;
602 }
603
pdo_pgsql_translate_oid_to_table(Oid oid,PGconn * conn)604 static zend_always_inline char * pdo_pgsql_translate_oid_to_table(Oid oid, PGconn *conn)
605 {
606 char *table_name = NULL;
607 PGresult *tmp_res;
608 char *querystr = NULL;
609
610 spprintf(&querystr, 0, "SELECT RELNAME FROM PG_CLASS WHERE OID=%d", oid);
611
612 if ((tmp_res = PQexec(conn, querystr)) == NULL || PQresultStatus(tmp_res) != PGRES_TUPLES_OK) {
613 if (tmp_res) {
614 PQclear(tmp_res);
615 }
616 efree(querystr);
617 return 0;
618 }
619 efree(querystr);
620
621 if ((table_name = PQgetvalue(tmp_res, 0, 0)) == NULL) {
622 PQclear(tmp_res);
623 return 0;
624 }
625
626 PQclear(tmp_res);
627 return table_name;
628 }
629
pgsql_stmt_get_column_meta(pdo_stmt_t * stmt,zend_long colno,zval * return_value)630 static int pgsql_stmt_get_column_meta(pdo_stmt_t *stmt, zend_long colno, zval *return_value)
631 {
632 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
633 PGresult *res;
634 char *q=NULL;
635 ExecStatusType status;
636 Oid table_oid;
637 char *table_name=NULL;
638
639 if (!S->result) {
640 return FAILURE;
641 }
642
643 if (colno >= stmt->column_count) {
644 return FAILURE;
645 }
646
647 array_init(return_value);
648 add_assoc_long(return_value, "pgsql:oid", S->cols[colno].pgsql_type);
649
650 table_oid = PQftable(S->result, colno);
651 add_assoc_long(return_value, "pgsql:table_oid", table_oid);
652 table_name = pdo_pgsql_translate_oid_to_table(table_oid, S->H->server);
653 if (table_name) {
654 add_assoc_string(return_value, "table", table_name);
655 }
656
657 switch (S->cols[colno].pgsql_type) {
658 case BOOLOID:
659 add_assoc_string(return_value, "native_type", BOOLLABEL);
660 break;
661 case BYTEAOID:
662 add_assoc_string(return_value, "native_type", BYTEALABEL);
663 break;
664 case INT8OID:
665 add_assoc_string(return_value, "native_type", INT8LABEL);
666 break;
667 case INT2OID:
668 add_assoc_string(return_value, "native_type", INT2LABEL);
669 break;
670 case INT4OID:
671 add_assoc_string(return_value, "native_type", INT4LABEL);
672 break;
673 case TEXTOID:
674 add_assoc_string(return_value, "native_type", TEXTLABEL);
675 break;
676 case VARCHAROID:
677 add_assoc_string(return_value, "native_type", VARCHARLABEL);
678 break;
679 case DATEOID:
680 add_assoc_string(return_value, "native_type", DATELABEL);
681 break;
682 case TIMESTAMPOID:
683 add_assoc_string(return_value, "native_type", TIMESTAMPLABEL);
684 break;
685 default:
686 /* Fetch metadata from Postgres system catalogue */
687 spprintf(&q, 0, "SELECT TYPNAME FROM PG_TYPE WHERE OID=%u", S->cols[colno].pgsql_type);
688 res = PQexec(S->H->server, q);
689 efree(q);
690 status = PQresultStatus(res);
691 if (status == PGRES_TUPLES_OK && 1 == PQntuples(res)) {
692 add_assoc_string(return_value, "native_type", PQgetvalue(res, 0, 0));
693 }
694 PQclear(res);
695 }
696 return 1;
697 }
698
pdo_pgsql_stmt_cursor_closer(pdo_stmt_t * stmt)699 static int pdo_pgsql_stmt_cursor_closer(pdo_stmt_t *stmt)
700 {
701 pdo_pgsql_stmt *S = (pdo_pgsql_stmt*)stmt->driver_data;
702
703 if (S->cols != NULL){
704 efree(S->cols);
705 S->cols = NULL;
706 }
707 return 1;
708 }
709
710 struct pdo_stmt_methods pgsql_stmt_methods = {
711 pgsql_stmt_dtor,
712 pgsql_stmt_execute,
713 pgsql_stmt_fetch,
714 pgsql_stmt_describe,
715 pgsql_stmt_get_col,
716 pgsql_stmt_param_hook,
717 NULL, /* set_attr */
718 NULL, /* get_attr */
719 pgsql_stmt_get_column_meta,
720 NULL, /* next_rowset */
721 pdo_pgsql_stmt_cursor_closer
722 };
723
724 /*
725 * Local variables:
726 * tab-width: 4
727 * c-basic-offset: 4
728 * End:
729 * vim600: noet sw=4 ts=4 fdm=marker
730 * vim<600: noet sw=4 ts=4
731 */
732
