PostgreSQL Source Code  git master
pl_funcs.c
Go to the documentation of this file.
1 /*-------------------------------------------------------------------------
2  *
3  * pl_funcs.c - Misc functions for the PL/pgSQL
4  * procedural language
5  *
6  * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
7  * Portions Copyright (c) 1994, Regents of the University of California
8  *
9  *
10  * IDENTIFICATION
11  * src/pl/plpgsql/src/pl_funcs.c
12  *
13  *-------------------------------------------------------------------------
14  */
15 
16 #include "postgres.h"
17 
18 #include "plpgsql.h"
19 #include "utils/memutils.h"
20 
21 /* ----------
22  * Local variables for namespace handling
23  *
24  * The namespace structure actually forms a tree, of which only one linear
25  * list or "chain" (from the youngest item to the root) is accessible from
26  * any one plpgsql statement. During initial parsing of a function, ns_top
27  * points to the youngest item accessible from the block currently being
28  * parsed. We store the entire tree, however, since at runtime we will need
29  * to access the chain that's relevant to any one statement.
30  *
31  * Block boundaries in the namespace chain are marked by PLPGSQL_NSTYPE_LABEL
32  * items.
33  * ----------
34  */
35 static PLpgSQL_nsitem *ns_top = NULL;
36 
37 
38 /* ----------
39  * plpgsql_ns_init Initialize namespace processing for a new function
40  * ----------
41  */
42 void
44 {
45  ns_top = NULL;
46 }
47 
48 
49 /* ----------
50  * plpgsql_ns_push Create a new namespace level
51  * ----------
52  */
53 void
54 plpgsql_ns_push(const char *label, PLpgSQL_label_type label_type)
55 {
56  if (label == NULL)
57  label = "";
58  plpgsql_ns_additem(PLPGSQL_NSTYPE_LABEL, (int) label_type, label);
59 }
60 
61 
62 /* ----------
63  * plpgsql_ns_pop Pop entries back to (and including) the last label
64  * ----------
65  */
66 void
68 {
69  Assert(ns_top != NULL);
70  while (ns_top->itemtype != PLPGSQL_NSTYPE_LABEL)
71  ns_top = ns_top->prev;
72  ns_top = ns_top->prev;
73 }
74 
75 
76 /* ----------
77  * plpgsql_ns_top Fetch the current namespace chain end
78  * ----------
79  */
82 {
83  return ns_top;
84 }
85 
86 
87 /* ----------
88  * plpgsql_ns_additem Add an item to the current namespace chain
89  * ----------
90  */
91 void
92 plpgsql_ns_additem(PLpgSQL_nsitem_type itemtype, int itemno, const char *name)
93 {
94  PLpgSQL_nsitem *nse;
95 
96  Assert(name != NULL);
97  /* first item added must be a label */
98  Assert(ns_top != NULL || itemtype == PLPGSQL_NSTYPE_LABEL);
99 
100  nse = palloc(offsetof(PLpgSQL_nsitem, name) + strlen(name) + 1);
101  nse->itemtype = itemtype;
102  nse->itemno = itemno;
103  nse->prev = ns_top;
104  strcpy(nse->name, name);
105  ns_top = nse;
106 }
107 
108 
109 /* ----------
110  * plpgsql_ns_lookup Lookup an identifier in the given namespace chain
111  *
112  * Note that this only searches for variables, not labels.
113  *
114  * If localmode is true, only the topmost block level is searched.
115  *
116  * name1 must be non-NULL. Pass NULL for name2 and/or name3 if parsing a name
117  * with fewer than three components.
118  *
119  * If names_used isn't NULL, *names_used receives the number of names
120  * matched: 0 if no match, 1 if name1 matched an unqualified variable name,
121  * 2 if name1 and name2 matched a block label + variable name.
122  *
123  * Note that name3 is never directly matched to anything. However, if it
124  * isn't NULL, we will disregard qualified matches to scalar variables.
125  * Similarly, if name2 isn't NULL, we disregard unqualified matches to
126  * scalar variables.
127  * ----------
128  */
130 plpgsql_ns_lookup(PLpgSQL_nsitem *ns_cur, bool localmode,
131  const char *name1, const char *name2, const char *name3,
132  int *names_used)
133 {
134  /* Outer loop iterates once per block level in the namespace chain */
135  while (ns_cur != NULL)
136  {
137  PLpgSQL_nsitem *nsitem;
138 
139  /* Check this level for unqualified match to variable name */
140  for (nsitem = ns_cur;
141  nsitem->itemtype != PLPGSQL_NSTYPE_LABEL;
142  nsitem = nsitem->prev)
143  {
144  if (strcmp(nsitem->name, name1) == 0)
145  {
146  if (name2 == NULL ||
147  nsitem->itemtype != PLPGSQL_NSTYPE_VAR)
148  {
149  if (names_used)
150  *names_used = 1;
151  return nsitem;
152  }
153  }
154  }
155 
156  /* Check this level for qualified match to variable name */
157  if (name2 != NULL &&
158  strcmp(nsitem->name, name1) == 0)
159  {
160  for (nsitem = ns_cur;
161  nsitem->itemtype != PLPGSQL_NSTYPE_LABEL;
162  nsitem = nsitem->prev)
163  {
164  if (strcmp(nsitem->name, name2) == 0)
165  {
166  if (name3 == NULL ||
167  nsitem->itemtype != PLPGSQL_NSTYPE_VAR)
168  {
169  if (names_used)
170  *names_used = 2;
171  return nsitem;
172  }
173  }
174  }
175  }
176 
177  if (localmode)
178  break; /* do not look into upper levels */
179 
180  ns_cur = nsitem->prev;
181  }
182 
183  /* This is just to suppress possibly-uninitialized-variable warnings */
184  if (names_used)
185  *names_used = 0;
186  return NULL; /* No match found */
187 }
188 
189 
190 /* ----------
191  * plpgsql_ns_lookup_label Lookup a label in the given namespace chain
192  * ----------
193  */
196 {
197  while (ns_cur != NULL)
198  {
199  if (ns_cur->itemtype == PLPGSQL_NSTYPE_LABEL &&
200  strcmp(ns_cur->name, name) == 0)
201  return ns_cur;
202  ns_cur = ns_cur->prev;
203  }
204 
205  return NULL; /* label not found */
206 }
207 
208 
209 /* ----------
210  * plpgsql_ns_find_nearest_loop Find innermost loop label in namespace chain
211  * ----------
212  */
215 {
216  while (ns_cur != NULL)
217  {
218  if (ns_cur->itemtype == PLPGSQL_NSTYPE_LABEL &&
219  ns_cur->itemno == PLPGSQL_LABEL_LOOP)
220  return ns_cur;
221  ns_cur = ns_cur->prev;
222  }
223 
224  return NULL; /* no loop found */
225 }
226 
227 
228 /*
229  * Statement type as a string, for use in error messages etc.
230  */
231 const char *
233 {
234  switch (stmt->cmd_type)
235  {
236  case PLPGSQL_STMT_BLOCK:
237  return _("statement block");
238  case PLPGSQL_STMT_ASSIGN:
239  return _("assignment");
240  case PLPGSQL_STMT_IF:
241  return "IF";
242  case PLPGSQL_STMT_CASE:
243  return "CASE";
244  case PLPGSQL_STMT_LOOP:
245  return "LOOP";
246  case PLPGSQL_STMT_WHILE:
247  return "WHILE";
248  case PLPGSQL_STMT_FORI:
249  return _("FOR with integer loop variable");
250  case PLPGSQL_STMT_FORS:
251  return _("FOR over SELECT rows");
252  case PLPGSQL_STMT_FORC:
253  return _("FOR over cursor");
255  return _("FOREACH over array");
256  case PLPGSQL_STMT_EXIT:
257  return ((PLpgSQL_stmt_exit *) stmt)->is_exit ? "EXIT" : "CONTINUE";
258  case PLPGSQL_STMT_RETURN:
259  return "RETURN";
261  return "RETURN NEXT";
263  return "RETURN QUERY";
264  case PLPGSQL_STMT_RAISE:
265  return "RAISE";
266  case PLPGSQL_STMT_ASSERT:
267  return "ASSERT";
269  return _("SQL statement");
271  return "EXECUTE";
273  return _("FOR over EXECUTE statement");
275  return ((PLpgSQL_stmt_getdiag *) stmt)->is_stacked ?
276  "GET STACKED DIAGNOSTICS" : "GET DIAGNOSTICS";
277  case PLPGSQL_STMT_OPEN:
278  return "OPEN";
279  case PLPGSQL_STMT_FETCH:
280  return ((PLpgSQL_stmt_fetch *) stmt)->is_move ? "MOVE" : "FETCH";
281  case PLPGSQL_STMT_CLOSE:
282  return "CLOSE";
284  return "PERFORM";
285  case PLPGSQL_STMT_CALL:
286  return ((PLpgSQL_stmt_call *) stmt)->is_call ? "CALL" : "DO";
287  case PLPGSQL_STMT_COMMIT:
288  return "COMMIT";
290  return "ROLLBACK";
291  }
292 
293  return "unknown";
294 }
295 
296 /*
297  * GET DIAGNOSTICS item name as a string, for use in error messages etc.
298  */
299 const char *
301 {
302  switch (kind)
303  {
305  return "ROW_COUNT";
307  return "PG_CONTEXT";
309  return "PG_EXCEPTION_CONTEXT";
311  return "PG_EXCEPTION_DETAIL";
313  return "PG_EXCEPTION_HINT";
315  return "RETURNED_SQLSTATE";
317  return "COLUMN_NAME";
319  return "CONSTRAINT_NAME";
321  return "PG_DATATYPE_NAME";
323  return "MESSAGE_TEXT";
325  return "TABLE_NAME";
327  return "SCHEMA_NAME";
328  }
329 
330  return "unknown";
331 }
332 
333 
334 /**********************************************************************
335  * Release memory when a PL/pgSQL function is no longer needed
336  *
337  * The code for recursing through the function tree is really only
338  * needed to locate PLpgSQL_expr nodes, which may contain references
339  * to saved SPI Plans that must be freed. The function tree itself,
340  * along with subsidiary data, is freed in one swoop by freeing the
341  * function's permanent memory context.
342  **********************************************************************/
343 static void free_stmt(PLpgSQL_stmt *stmt);
344 static void free_block(PLpgSQL_stmt_block *block);
345 static void free_assign(PLpgSQL_stmt_assign *stmt);
346 static void free_if(PLpgSQL_stmt_if *stmt);
347 static void free_case(PLpgSQL_stmt_case *stmt);
348 static void free_loop(PLpgSQL_stmt_loop *stmt);
349 static void free_while(PLpgSQL_stmt_while *stmt);
350 static void free_fori(PLpgSQL_stmt_fori *stmt);
351 static void free_fors(PLpgSQL_stmt_fors *stmt);
352 static void free_forc(PLpgSQL_stmt_forc *stmt);
353 static void free_foreach_a(PLpgSQL_stmt_foreach_a *stmt);
354 static void free_exit(PLpgSQL_stmt_exit *stmt);
355 static void free_return(PLpgSQL_stmt_return *stmt);
356 static void free_return_next(PLpgSQL_stmt_return_next *stmt);
358 static void free_raise(PLpgSQL_stmt_raise *stmt);
359 static void free_assert(PLpgSQL_stmt_assert *stmt);
360 static void free_execsql(PLpgSQL_stmt_execsql *stmt);
361 static void free_dynexecute(PLpgSQL_stmt_dynexecute *stmt);
362 static void free_dynfors(PLpgSQL_stmt_dynfors *stmt);
363 static void free_getdiag(PLpgSQL_stmt_getdiag *stmt);
364 static void free_open(PLpgSQL_stmt_open *stmt);
365 static void free_fetch(PLpgSQL_stmt_fetch *stmt);
366 static void free_close(PLpgSQL_stmt_close *stmt);
367 static void free_perform(PLpgSQL_stmt_perform *stmt);
368 static void free_call(PLpgSQL_stmt_call *stmt);
369 static void free_commit(PLpgSQL_stmt_commit *stmt);
370 static void free_rollback(PLpgSQL_stmt_rollback *stmt);
371 static void free_expr(PLpgSQL_expr *expr);
372 
373 
374 static void
376 {
377  switch (stmt->cmd_type)
378  {
379  case PLPGSQL_STMT_BLOCK:
380  free_block((PLpgSQL_stmt_block *) stmt);
381  break;
382  case PLPGSQL_STMT_ASSIGN:
384  break;
385  case PLPGSQL_STMT_IF:
386  free_if((PLpgSQL_stmt_if *) stmt);
387  break;
388  case PLPGSQL_STMT_CASE:
389  free_case((PLpgSQL_stmt_case *) stmt);
390  break;
391  case PLPGSQL_STMT_LOOP:
392  free_loop((PLpgSQL_stmt_loop *) stmt);
393  break;
394  case PLPGSQL_STMT_WHILE:
395  free_while((PLpgSQL_stmt_while *) stmt);
396  break;
397  case PLPGSQL_STMT_FORI:
398  free_fori((PLpgSQL_stmt_fori *) stmt);
399  break;
400  case PLPGSQL_STMT_FORS:
401  free_fors((PLpgSQL_stmt_fors *) stmt);
402  break;
403  case PLPGSQL_STMT_FORC:
404  free_forc((PLpgSQL_stmt_forc *) stmt);
405  break;
408  break;
409  case PLPGSQL_STMT_EXIT:
410  free_exit((PLpgSQL_stmt_exit *) stmt);
411  break;
412  case PLPGSQL_STMT_RETURN:
414  break;
417  break;
420  break;
421  case PLPGSQL_STMT_RAISE:
422  free_raise((PLpgSQL_stmt_raise *) stmt);
423  break;
424  case PLPGSQL_STMT_ASSERT:
426  break;
429  break;
432  break;
435  break;
438  break;
439  case PLPGSQL_STMT_OPEN:
440  free_open((PLpgSQL_stmt_open *) stmt);
441  break;
442  case PLPGSQL_STMT_FETCH:
443  free_fetch((PLpgSQL_stmt_fetch *) stmt);
444  break;
445  case PLPGSQL_STMT_CLOSE:
446  free_close((PLpgSQL_stmt_close *) stmt);
447  break;
450  break;
451  case PLPGSQL_STMT_CALL:
452  free_call((PLpgSQL_stmt_call *) stmt);
453  break;
454  case PLPGSQL_STMT_COMMIT:
456  break;
459  break;
460  default:
461  elog(ERROR, "unrecognized cmd_type: %d", stmt->cmd_type);
462  break;
463  }
464 }
465 
466 static void
468 {
469  ListCell *s;
470 
471  foreach(s, stmts)
472  {
473  free_stmt((PLpgSQL_stmt *) lfirst(s));
474  }
475 }
476 
477 static void
479 {
480  free_stmts(block->body);
481  if (block->exceptions)
482  {
483  ListCell *e;
484 
485  foreach(e, block->exceptions->exc_list)
486  {
488 
489  free_stmts(exc->action);
490  }
491  }
492 }
493 
494 static void
496 {
497  free_expr(stmt->expr);
498 }
499 
500 static void
502 {
503  ListCell *l;
504 
505  free_expr(stmt->cond);
506  free_stmts(stmt->then_body);
507  foreach(l, stmt->elsif_list)
508  {
510 
511  free_expr(elif->cond);
512  free_stmts(elif->stmts);
513  }
514  free_stmts(stmt->else_body);
515 }
516 
517 static void
519 {
520  ListCell *l;
521 
522  free_expr(stmt->t_expr);
523  foreach(l, stmt->case_when_list)
524  {
526 
527  free_expr(cwt->expr);
528  free_stmts(cwt->stmts);
529  }
530  free_stmts(stmt->else_stmts);
531 }
532 
533 static void
535 {
536  free_stmts(stmt->body);
537 }
538 
539 static void
541 {
542  free_expr(stmt->cond);
543  free_stmts(stmt->body);
544 }
545 
546 static void
548 {
549  free_expr(stmt->lower);
550  free_expr(stmt->upper);
551  free_expr(stmt->step);
552  free_stmts(stmt->body);
553 }
554 
555 static void
557 {
558  free_stmts(stmt->body);
559  free_expr(stmt->query);
560 }
561 
562 static void
564 {
565  free_stmts(stmt->body);
566  free_expr(stmt->argquery);
567 }
568 
569 static void
571 {
572  free_expr(stmt->expr);
573  free_stmts(stmt->body);
574 }
575 
576 static void
578 {
579  ListCell *lc;
580 
581  free_expr(stmt->argquery);
582  free_expr(stmt->query);
583  free_expr(stmt->dynquery);
584  foreach(lc, stmt->params)
585  {
586  free_expr((PLpgSQL_expr *) lfirst(lc));
587  }
588 }
589 
590 static void
592 {
593  free_expr(stmt->expr);
594 }
595 
596 static void
598 {
599 }
600 
601 static void
603 {
604  free_expr(stmt->expr);
605 }
606 
607 static void
609 {
610  free_expr(stmt->expr);
611 }
612 
613 static void
615 {
616 }
617 
618 static void
620 {
621 }
622 
623 static void
625 {
626  free_expr(stmt->cond);
627 }
628 
629 static void
631 {
632  free_expr(stmt->expr);
633 }
634 
635 static void
637 {
638  free_expr(stmt->expr);
639 }
640 
641 static void
643 {
644  ListCell *lc;
645 
646  free_expr(stmt->query);
647  free_expr(stmt->dynquery);
648  foreach(lc, stmt->params)
649  {
650  free_expr((PLpgSQL_expr *) lfirst(lc));
651  }
652 }
653 
654 static void
656 {
657  ListCell *lc;
658 
659  foreach(lc, stmt->params)
660  {
661  free_expr((PLpgSQL_expr *) lfirst(lc));
662  }
663  foreach(lc, stmt->options)
664  {
666 
667  free_expr(opt->expr);
668  }
669 }
670 
671 static void
673 {
674  free_expr(stmt->cond);
675  free_expr(stmt->message);
676 }
677 
678 static void
680 {
681  free_expr(stmt->sqlstmt);
682 }
683 
684 static void
686 {
687  ListCell *lc;
688 
689  free_expr(stmt->query);
690  foreach(lc, stmt->params)
691  {
692  free_expr((PLpgSQL_expr *) lfirst(lc));
693  }
694 }
695 
696 static void
698 {
699  ListCell *lc;
700 
701  free_stmts(stmt->body);
702  free_expr(stmt->query);
703  foreach(lc, stmt->params)
704  {
705  free_expr((PLpgSQL_expr *) lfirst(lc));
706  }
707 }
708 
709 static void
711 {
712 }
713 
714 static void
716 {
717  if (expr && expr->plan)
718  {
719  SPI_freeplan(expr->plan);
720  expr->plan = NULL;
721  }
722 }
723 
724 void
726 {
727  int i;
728 
729  /* Better not call this on an in-use function */
730  Assert(func->use_count == 0);
731 
732  /* Release plans associated with variable declarations */
733  for (i = 0; i < func->ndatums; i++)
734  {
735  PLpgSQL_datum *d = func->datums[i];
736 
737  switch (d->dtype)
738  {
739  case PLPGSQL_DTYPE_VAR:
741  {
742  PLpgSQL_var *var = (PLpgSQL_var *) d;
743 
744  free_expr(var->default_val);
746  }
747  break;
748  case PLPGSQL_DTYPE_ROW:
749  break;
750  case PLPGSQL_DTYPE_REC:
751  {
752  PLpgSQL_rec *rec = (PLpgSQL_rec *) d;
753 
754  free_expr(rec->default_val);
755  }
756  break;
758  break;
759  default:
760  elog(ERROR, "unrecognized data type: %d", d->dtype);
761  }
762  }
763  func->ndatums = 0;
764 
765  /* Release plans in statement tree */
766  if (func->action)
767  free_block(func->action);
768  func->action = NULL;
769 
770  /*
771  * And finally, release all memory except the PLpgSQL_function struct
772  * itself (which has to be kept around because there may be multiple
773  * fn_extra pointers to it).
774  */
775  if (func->fn_cxt)
777  func->fn_cxt = NULL;
778 }
779 
780 
781 /**********************************************************************
782  * Debug functions for analyzing the compiled code
783  **********************************************************************/
784 static int dump_indent;
785 
786 static void dump_ind(void);
787 static void dump_stmt(PLpgSQL_stmt *stmt);
788 static void dump_block(PLpgSQL_stmt_block *block);
789 static void dump_assign(PLpgSQL_stmt_assign *stmt);
790 static void dump_if(PLpgSQL_stmt_if *stmt);
791 static void dump_case(PLpgSQL_stmt_case *stmt);
792 static void dump_loop(PLpgSQL_stmt_loop *stmt);
793 static void dump_while(PLpgSQL_stmt_while *stmt);
794 static void dump_fori(PLpgSQL_stmt_fori *stmt);
795 static void dump_fors(PLpgSQL_stmt_fors *stmt);
796 static void dump_forc(PLpgSQL_stmt_forc *stmt);
797 static void dump_foreach_a(PLpgSQL_stmt_foreach_a *stmt);
798 static void dump_exit(PLpgSQL_stmt_exit *stmt);
799 static void dump_return(PLpgSQL_stmt_return *stmt);
800 static void dump_return_next(PLpgSQL_stmt_return_next *stmt);
802 static void dump_raise(PLpgSQL_stmt_raise *stmt);
803 static void dump_assert(PLpgSQL_stmt_assert *stmt);
804 static void dump_execsql(PLpgSQL_stmt_execsql *stmt);
805 static void dump_dynexecute(PLpgSQL_stmt_dynexecute *stmt);
806 static void dump_dynfors(PLpgSQL_stmt_dynfors *stmt);
807 static void dump_getdiag(PLpgSQL_stmt_getdiag *stmt);
808 static void dump_open(PLpgSQL_stmt_open *stmt);
809 static void dump_fetch(PLpgSQL_stmt_fetch *stmt);
810 static void dump_cursor_direction(PLpgSQL_stmt_fetch *stmt);
811 static void dump_close(PLpgSQL_stmt_close *stmt);
812 static void dump_perform(PLpgSQL_stmt_perform *stmt);
813 static void dump_call(PLpgSQL_stmt_call *stmt);
814 static void dump_commit(PLpgSQL_stmt_commit *stmt);
815 static void dump_rollback(PLpgSQL_stmt_rollback *stmt);
816 static void dump_expr(PLpgSQL_expr *expr);
817 
818 
819 static void
820 dump_ind(void)
821 {
822  int i;
823 
824  for (i = 0; i < dump_indent; i++)
825  printf(" ");
826 }
827 
828 static void
830 {
831  printf("%3d:", stmt->lineno);
832  switch (stmt->cmd_type)
833  {
834  case PLPGSQL_STMT_BLOCK:
835  dump_block((PLpgSQL_stmt_block *) stmt);
836  break;
837  case PLPGSQL_STMT_ASSIGN:
839  break;
840  case PLPGSQL_STMT_IF:
841  dump_if((PLpgSQL_stmt_if *) stmt);
842  break;
843  case PLPGSQL_STMT_CASE:
844  dump_case((PLpgSQL_stmt_case *) stmt);
845  break;
846  case PLPGSQL_STMT_LOOP:
847  dump_loop((PLpgSQL_stmt_loop *) stmt);
848  break;
849  case PLPGSQL_STMT_WHILE:
850  dump_while((PLpgSQL_stmt_while *) stmt);
851  break;
852  case PLPGSQL_STMT_FORI:
853  dump_fori((PLpgSQL_stmt_fori *) stmt);
854  break;
855  case PLPGSQL_STMT_FORS:
856  dump_fors((PLpgSQL_stmt_fors *) stmt);
857  break;
858  case PLPGSQL_STMT_FORC:
859  dump_forc((PLpgSQL_stmt_forc *) stmt);
860  break;
863  break;
864  case PLPGSQL_STMT_EXIT:
865  dump_exit((PLpgSQL_stmt_exit *) stmt);
866  break;
867  case PLPGSQL_STMT_RETURN:
869  break;
872  break;
875  break;
876  case PLPGSQL_STMT_RAISE:
877  dump_raise((PLpgSQL_stmt_raise *) stmt);
878  break;
879  case PLPGSQL_STMT_ASSERT:
881  break;
884  break;
887  break;
890  break;
893  break;
894  case PLPGSQL_STMT_OPEN:
895  dump_open((PLpgSQL_stmt_open *) stmt);
896  break;
897  case PLPGSQL_STMT_FETCH:
898  dump_fetch((PLpgSQL_stmt_fetch *) stmt);
899  break;
900  case PLPGSQL_STMT_CLOSE:
901  dump_close((PLpgSQL_stmt_close *) stmt);
902  break;
905  break;
906  case PLPGSQL_STMT_CALL:
907  dump_call((PLpgSQL_stmt_call *) stmt);
908  break;
909  case PLPGSQL_STMT_COMMIT:
911  break;
914  break;
915  default:
916  elog(ERROR, "unrecognized cmd_type: %d", stmt->cmd_type);
917  break;
918  }
919 }
920 
921 static void
923 {
924  ListCell *s;
925 
926  dump_indent += 2;
927  foreach(s, stmts)
928  dump_stmt((PLpgSQL_stmt *) lfirst(s));
929  dump_indent -= 2;
930 }
931 
932 static void
934 {
935  char *name;
936 
937  if (block->label == NULL)
938  name = "*unnamed*";
939  else
940  name = block->label;
941 
942  dump_ind();
943  printf("BLOCK <<%s>>\n", name);
944 
945  dump_stmts(block->body);
946 
947  if (block->exceptions)
948  {
949  ListCell *e;
950 
951  foreach(e, block->exceptions->exc_list)
952  {
954  PLpgSQL_condition *cond;
955 
956  dump_ind();
957  printf(" EXCEPTION WHEN ");
958  for (cond = exc->conditions; cond; cond = cond->next)
959  {
960  if (cond != exc->conditions)
961  printf(" OR ");
962  printf("%s", cond->condname);
963  }
964  printf(" THEN\n");
965  dump_stmts(exc->action);
966  }
967  }
968 
969  dump_ind();
970  printf(" END -- %s\n", name);
971 }
972 
973 static void
975 {
976  dump_ind();
977  printf("ASSIGN var %d := ", stmt->varno);
978  dump_expr(stmt->expr);
979  printf("\n");
980 }
981 
982 static void
984 {
985  ListCell *l;
986 
987  dump_ind();
988  printf("IF ");
989  dump_expr(stmt->cond);
990  printf(" THEN\n");
991  dump_stmts(stmt->then_body);
992  foreach(l, stmt->elsif_list)
993  {
995 
996  dump_ind();
997  printf(" ELSIF ");
998  dump_expr(elif->cond);
999  printf(" THEN\n");
1000  dump_stmts(elif->stmts);
1001  }
1002  if (stmt->else_body != NIL)
1003  {
1004  dump_ind();
1005  printf(" ELSE\n");
1006  dump_stmts(stmt->else_body);
1007  }
1008  dump_ind();
1009  printf(" ENDIF\n");
1010 }
1011 
1012 static void
1014 {
1015  ListCell *l;
1016 
1017  dump_ind();
1018  printf("CASE %d ", stmt->t_varno);
1019  if (stmt->t_expr)
1020  dump_expr(stmt->t_expr);
1021  printf("\n");
1022  dump_indent += 6;
1023  foreach(l, stmt->case_when_list)
1024  {
1026 
1027  dump_ind();
1028  printf("WHEN ");
1029  dump_expr(cwt->expr);
1030  printf("\n");
1031  dump_ind();
1032  printf("THEN\n");
1033  dump_indent += 2;
1034  dump_stmts(cwt->stmts);
1035  dump_indent -= 2;
1036  }
1037  if (stmt->have_else)
1038  {
1039  dump_ind();
1040  printf("ELSE\n");
1041  dump_indent += 2;
1042  dump_stmts(stmt->else_stmts);
1043  dump_indent -= 2;
1044  }
1045  dump_indent -= 6;
1046  dump_ind();
1047  printf(" ENDCASE\n");
1048 }
1049 
1050 static void
1052 {
1053  dump_ind();
1054  printf("LOOP\n");
1055 
1056  dump_stmts(stmt->body);
1057 
1058  dump_ind();
1059  printf(" ENDLOOP\n");
1060 }
1061 
1062 static void
1064 {
1065  dump_ind();
1066  printf("WHILE ");
1067  dump_expr(stmt->cond);
1068  printf("\n");
1069 
1070  dump_stmts(stmt->body);
1071 
1072  dump_ind();
1073  printf(" ENDWHILE\n");
1074 }
1075 
1076 static void
1078 {
1079  dump_ind();
1080  printf("FORI %s %s\n", stmt->var->refname, (stmt->reverse) ? "REVERSE" : "NORMAL");
1081 
1082  dump_indent += 2;
1083  dump_ind();
1084  printf(" lower = ");
1085  dump_expr(stmt->lower);
1086  printf("\n");
1087  dump_ind();
1088  printf(" upper = ");
1089  dump_expr(stmt->upper);
1090  printf("\n");
1091  if (stmt->step)
1092  {
1093  dump_ind();
1094  printf(" step = ");
1095  dump_expr(stmt->step);
1096  printf("\n");
1097  }
1098  dump_indent -= 2;
1099 
1100  dump_stmts(stmt->body);
1101 
1102  dump_ind();
1103  printf(" ENDFORI\n");
1104 }
1105 
1106 static void
1108 {
1109  dump_ind();
1110  printf("FORS %s ", stmt->var->refname);
1111  dump_expr(stmt->query);
1112  printf("\n");
1113 
1114  dump_stmts(stmt->body);
1115 
1116  dump_ind();
1117  printf(" ENDFORS\n");
1118 }
1119 
1120 static void
1122 {
1123  dump_ind();
1124  printf("FORC %s ", stmt->var->refname);
1125  printf("curvar=%d\n", stmt->curvar);
1126 
1127  dump_indent += 2;
1128  if (stmt->argquery != NULL)
1129  {
1130  dump_ind();
1131  printf(" arguments = ");
1132  dump_expr(stmt->argquery);
1133  printf("\n");
1134  }
1135  dump_indent -= 2;
1136 
1137  dump_stmts(stmt->body);
1138 
1139  dump_ind();
1140  printf(" ENDFORC\n");
1141 }
1142 
1143 static void
1145 {
1146  dump_ind();
1147  printf("FOREACHA var %d ", stmt->varno);
1148  if (stmt->slice != 0)
1149  printf("SLICE %d ", stmt->slice);
1150  printf("IN ");
1151  dump_expr(stmt->expr);
1152  printf("\n");
1153 
1154  dump_stmts(stmt->body);
1155 
1156  dump_ind();
1157  printf(" ENDFOREACHA");
1158 }
1159 
1160 static void
1162 {
1163  dump_ind();
1164  printf("OPEN curvar=%d\n", stmt->curvar);
1165 
1166  dump_indent += 2;
1167  if (stmt->argquery != NULL)
1168  {
1169  dump_ind();
1170  printf(" arguments = '");
1171  dump_expr(stmt->argquery);
1172  printf("'\n");
1173  }
1174  if (stmt->query != NULL)
1175  {
1176  dump_ind();
1177  printf(" query = '");
1178  dump_expr(stmt->query);
1179  printf("'\n");
1180  }
1181  if (stmt->dynquery != NULL)
1182  {
1183  dump_ind();
1184  printf(" execute = '");
1185  dump_expr(stmt->dynquery);
1186  printf("'\n");
1187 
1188  if (stmt->params != NIL)
1189  {
1190  ListCell *lc;
1191  int i;
1192 
1193  dump_indent += 2;
1194  dump_ind();
1195  printf(" USING\n");
1196  dump_indent += 2;
1197  i = 1;
1198  foreach(lc, stmt->params)
1199  {
1200  dump_ind();
1201  printf(" parameter $%d: ", i++);
1202  dump_expr((PLpgSQL_expr *) lfirst(lc));
1203  printf("\n");
1204  }
1205  dump_indent -= 4;
1206  }
1207  }
1208  dump_indent -= 2;
1209 }
1210 
1211 static void
1213 {
1214  dump_ind();
1215 
1216  if (!stmt->is_move)
1217  {
1218  printf("FETCH curvar=%d\n", stmt->curvar);
1219  dump_cursor_direction(stmt);
1220 
1221  dump_indent += 2;
1222  if (stmt->target != NULL)
1223  {
1224  dump_ind();
1225  printf(" target = %d %s\n",
1226  stmt->target->dno, stmt->target->refname);
1227  }
1228  dump_indent -= 2;
1229  }
1230  else
1231  {
1232  printf("MOVE curvar=%d\n", stmt->curvar);
1233  dump_cursor_direction(stmt);
1234  }
1235 }
1236 
1237 static void
1239 {
1240  dump_indent += 2;
1241  dump_ind();
1242  switch (stmt->direction)
1243  {
1244  case FETCH_FORWARD:
1245  printf(" FORWARD ");
1246  break;
1247  case FETCH_BACKWARD:
1248  printf(" BACKWARD ");
1249  break;
1250  case FETCH_ABSOLUTE:
1251  printf(" ABSOLUTE ");
1252  break;
1253  case FETCH_RELATIVE:
1254  printf(" RELATIVE ");
1255  break;
1256  default:
1257  printf("??? unknown cursor direction %d", stmt->direction);
1258  }
1259 
1260  if (stmt->expr)
1261  {
1262  dump_expr(stmt->expr);
1263  printf("\n");
1264  }
1265  else
1266  printf("%ld\n", stmt->how_many);
1267 
1268  dump_indent -= 2;
1269 }
1270 
1271 static void
1273 {
1274  dump_ind();
1275  printf("CLOSE curvar=%d\n", stmt->curvar);
1276 }
1277 
1278 static void
1280 {
1281  dump_ind();
1282  printf("PERFORM expr = ");
1283  dump_expr(stmt->expr);
1284  printf("\n");
1285 }
1286 
1287 static void
1289 {
1290  dump_ind();
1291  printf("%s expr = ", stmt->is_call ? "CALL" : "DO");
1292  dump_expr(stmt->expr);
1293  printf("\n");
1294 }
1295 
1296 static void
1298 {
1299  dump_ind();
1300  if (stmt->chain)
1301  printf("COMMIT AND CHAIN\n");
1302  else
1303  printf("COMMIT\n");
1304 }
1305 
1306 static void
1308 {
1309  dump_ind();
1310  if (stmt->chain)
1311  printf("ROLLBACK AND CHAIN\n");
1312  else
1313  printf("ROLLBACK\n");
1314 }
1315 
1316 static void
1318 {
1319  dump_ind();
1320  printf("%s", stmt->is_exit ? "EXIT" : "CONTINUE");
1321  if (stmt->label != NULL)
1322  printf(" label='%s'", stmt->label);
1323  if (stmt->cond != NULL)
1324  {
1325  printf(" WHEN ");
1326  dump_expr(stmt->cond);
1327  }
1328  printf("\n");
1329 }
1330 
1331 static void
1333 {
1334  dump_ind();
1335  printf("RETURN ");
1336  if (stmt->retvarno >= 0)
1337  printf("variable %d", stmt->retvarno);
1338  else if (stmt->expr != NULL)
1339  dump_expr(stmt->expr);
1340  else
1341  printf("NULL");
1342  printf("\n");
1343 }
1344 
1345 static void
1347 {
1348  dump_ind();
1349  printf("RETURN NEXT ");
1350  if (stmt->retvarno >= 0)
1351  printf("variable %d", stmt->retvarno);
1352  else if (stmt->expr != NULL)
1353  dump_expr(stmt->expr);
1354  else
1355  printf("NULL");
1356  printf("\n");
1357 }
1358 
1359 static void
1361 {
1362  dump_ind();
1363  if (stmt->query)
1364  {
1365  printf("RETURN QUERY ");
1366  dump_expr(stmt->query);
1367  printf("\n");
1368  }
1369  else
1370  {
1371  printf("RETURN QUERY EXECUTE ");
1372  dump_expr(stmt->dynquery);
1373  printf("\n");
1374  if (stmt->params != NIL)
1375  {
1376  ListCell *lc;
1377  int i;
1378 
1379  dump_indent += 2;
1380  dump_ind();
1381  printf(" USING\n");
1382  dump_indent += 2;
1383  i = 1;
1384  foreach(lc, stmt->params)
1385  {
1386  dump_ind();
1387  printf(" parameter $%d: ", i++);
1388  dump_expr((PLpgSQL_expr *) lfirst(lc));
1389  printf("\n");
1390  }
1391  dump_indent -= 4;
1392  }
1393  }
1394 }
1395 
1396 static void
1398 {
1399  ListCell *lc;
1400  int i = 0;
1401 
1402  dump_ind();
1403  printf("RAISE level=%d", stmt->elog_level);
1404  if (stmt->condname)
1405  printf(" condname='%s'", stmt->condname);
1406  if (stmt->message)
1407  printf(" message='%s'", stmt->message);
1408  printf("\n");
1409  dump_indent += 2;
1410  foreach(lc, stmt->params)
1411  {
1412  dump_ind();
1413  printf(" parameter %d: ", i++);
1414  dump_expr((PLpgSQL_expr *) lfirst(lc));
1415  printf("\n");
1416  }
1417  if (stmt->options)
1418  {
1419  dump_ind();
1420  printf(" USING\n");
1421  dump_indent += 2;
1422  foreach(lc, stmt->options)
1423  {
1425 
1426  dump_ind();
1427  switch (opt->opt_type)
1428  {
1430  printf(" ERRCODE = ");
1431  break;
1433  printf(" MESSAGE = ");
1434  break;
1436  printf(" DETAIL = ");
1437  break;
1439  printf(" HINT = ");
1440  break;
1442  printf(" COLUMN = ");
1443  break;
1445  printf(" CONSTRAINT = ");
1446  break;
1448  printf(" DATATYPE = ");
1449  break;
1451  printf(" TABLE = ");
1452  break;
1454  printf(" SCHEMA = ");
1455  break;
1456  }
1457  dump_expr(opt->expr);
1458  printf("\n");
1459  }
1460  dump_indent -= 2;
1461  }
1462  dump_indent -= 2;
1463 }
1464 
1465 static void
1467 {
1468  dump_ind();
1469  printf("ASSERT ");
1470  dump_expr(stmt->cond);
1471  printf("\n");
1472 
1473  dump_indent += 2;
1474  if (stmt->message != NULL)
1475  {
1476  dump_ind();
1477  printf(" MESSAGE = ");
1478  dump_expr(stmt->message);
1479  printf("\n");
1480  }
1481  dump_indent -= 2;
1482 }
1483 
1484 static void
1486 {
1487  dump_ind();
1488  printf("EXECSQL ");
1489  dump_expr(stmt->sqlstmt);
1490  printf("\n");
1491 
1492  dump_indent += 2;
1493  if (stmt->target != NULL)
1494  {
1495  dump_ind();
1496  printf(" INTO%s target = %d %s\n",
1497  stmt->strict ? " STRICT" : "",
1498  stmt->target->dno, stmt->target->refname);
1499  }
1500  dump_indent -= 2;
1501 }
1502 
1503 static void
1505 {
1506  dump_ind();
1507  printf("EXECUTE ");
1508  dump_expr(stmt->query);
1509  printf("\n");
1510 
1511  dump_indent += 2;
1512  if (stmt->target != NULL)
1513  {
1514  dump_ind();
1515  printf(" INTO%s target = %d %s\n",
1516  stmt->strict ? " STRICT" : "",
1517  stmt->target->dno, stmt->target->refname);
1518  }
1519  if (stmt->params != NIL)
1520  {
1521  ListCell *lc;
1522  int i;
1523 
1524  dump_ind();
1525  printf(" USING\n");
1526  dump_indent += 2;
1527  i = 1;
1528  foreach(lc, stmt->params)
1529  {
1530  dump_ind();
1531  printf(" parameter %d: ", i++);
1532  dump_expr((PLpgSQL_expr *) lfirst(lc));
1533  printf("\n");
1534  }
1535  dump_indent -= 2;
1536  }
1537  dump_indent -= 2;
1538 }
1539 
1540 static void
1542 {
1543  dump_ind();
1544  printf("FORS %s EXECUTE ", stmt->var->refname);
1545  dump_expr(stmt->query);
1546  printf("\n");
1547  if (stmt->params != NIL)
1548  {
1549  ListCell *lc;
1550  int i;
1551 
1552  dump_indent += 2;
1553  dump_ind();
1554  printf(" USING\n");
1555  dump_indent += 2;
1556  i = 1;
1557  foreach(lc, stmt->params)
1558  {
1559  dump_ind();
1560  printf(" parameter $%d: ", i++);
1561  dump_expr((PLpgSQL_expr *) lfirst(lc));
1562  printf("\n");
1563  }
1564  dump_indent -= 4;
1565  }
1566  dump_stmts(stmt->body);
1567  dump_ind();
1568  printf(" ENDFORS\n");
1569 }
1570 
1571 static void
1573 {
1574  ListCell *lc;
1575 
1576  dump_ind();
1577  printf("GET %s DIAGNOSTICS ", stmt->is_stacked ? "STACKED" : "CURRENT");
1578  foreach(lc, stmt->diag_items)
1579  {
1580  PLpgSQL_diag_item *diag_item = (PLpgSQL_diag_item *) lfirst(lc);
1581 
1582  if (lc != list_head(stmt->diag_items))
1583  printf(", ");
1584 
1585  printf("{var %d} = %s", diag_item->target,
1586  plpgsql_getdiag_kindname(diag_item->kind));
1587  }
1588  printf("\n");
1589 }
1590 
1591 static void
1593 {
1594  printf("'%s'", expr->query);
1595 }
1596 
1597 void
1599 {
1600  int i;
1601  PLpgSQL_datum *d;
1602 
1603  printf("\nExecution tree of successfully compiled PL/pgSQL function %s:\n",
1604  func->fn_signature);
1605 
1606  printf("\nFunction's data area:\n");
1607  for (i = 0; i < func->ndatums; i++)
1608  {
1609  d = func->datums[i];
1610 
1611  printf(" entry %d: ", i);
1612  switch (d->dtype)
1613  {
1614  case PLPGSQL_DTYPE_VAR:
1615  case PLPGSQL_DTYPE_PROMISE:
1616  {
1617  PLpgSQL_var *var = (PLpgSQL_var *) d;
1618 
1619  printf("VAR %-16s type %s (typoid %u) atttypmod %d\n",
1620  var->refname, var->datatype->typname,
1621  var->datatype->typoid,
1622  var->datatype->atttypmod);
1623  if (var->isconst)
1624  printf(" CONSTANT\n");
1625  if (var->notnull)
1626  printf(" NOT NULL\n");
1627  if (var->default_val != NULL)
1628  {
1629  printf(" DEFAULT ");
1630  dump_expr(var->default_val);
1631  printf("\n");
1632  }
1633  if (var->cursor_explicit_expr != NULL)
1634  {
1635  if (var->cursor_explicit_argrow >= 0)
1636  printf(" CURSOR argument row %d\n", var->cursor_explicit_argrow);
1637 
1638  printf(" CURSOR IS ");
1640  printf("\n");
1641  }
1642  if (var->promise != PLPGSQL_PROMISE_NONE)
1643  printf(" PROMISE %d\n",
1644  (int) var->promise);
1645  }
1646  break;
1647  case PLPGSQL_DTYPE_ROW:
1648  {
1649  PLpgSQL_row *row = (PLpgSQL_row *) d;
1650  int i;
1651 
1652  printf("ROW %-16s fields", row->refname);
1653  for (i = 0; i < row->nfields; i++)
1654  {
1655  printf(" %s=var %d", row->fieldnames[i],
1656  row->varnos[i]);
1657  }
1658  printf("\n");
1659  }
1660  break;
1661  case PLPGSQL_DTYPE_REC:
1662  printf("REC %-16s typoid %u\n",
1663  ((PLpgSQL_rec *) d)->refname,
1664  ((PLpgSQL_rec *) d)->rectypeid);
1665  if (((PLpgSQL_rec *) d)->isconst)
1666  printf(" CONSTANT\n");
1667  if (((PLpgSQL_rec *) d)->notnull)
1668  printf(" NOT NULL\n");
1669  if (((PLpgSQL_rec *) d)->default_val != NULL)
1670  {
1671  printf(" DEFAULT ");
1672  dump_expr(((PLpgSQL_rec *) d)->default_val);
1673  printf("\n");
1674  }
1675  break;
1677  printf("RECFIELD %-16s of REC %d\n",
1678  ((PLpgSQL_recfield *) d)->fieldname,
1679  ((PLpgSQL_recfield *) d)->recparentno);
1680  break;
1681  default:
1682  printf("??? unknown data type %d\n", d->dtype);
1683  }
1684  }
1685  printf("\nFunction's statements:\n");
1686 
1687  dump_indent = 0;
1688  printf("%3d:", func->action->lineno);
1689  dump_block(func->action);
1690  printf("\nEnd of execution tree of function %s\n\n", func->fn_signature);
1691  fflush(stdout);
1692 }
PLpgSQL_promise_type promise
Definition: plpgsql.h:341
#define NIL
Definition: pg_list.h:65
void plpgsql_free_function_memory(PLpgSQL_function *func)
Definition: pl_funcs.c:725
PLpgSQL_expr * query
Definition: plpgsql.h:911
PLpgSQL_datum ** datums
Definition: plpgsql.h:1002
PLpgSQL_expr * cond
Definition: plpgsql.h:597
PLpgSQL_expr * cond
Definition: plpgsql.h:659
List * then_body
Definition: plpgsql.h:598
PLpgSQL_expr * expr
Definition: plpgsql.h:753
void MemoryContextDelete(MemoryContext context)
Definition: mcxt.c:218
char * refname
Definition: plpgsql.h:366
char * query
Definition: plpgsql.h:219
PLpgSQL_nsitem * plpgsql_ns_top(void)
Definition: pl_funcs.c:81
static void free_assert(PLpgSQL_stmt_assert *stmt)
Definition: pl_funcs.c:672
FetchDirection direction
Definition: plpgsql.h:783
int lineno
Definition: plpgsql.h:455
static void free_dynexecute(PLpgSQL_stmt_dynexecute *stmt)
Definition: pl_funcs.c:685
static void dump_cursor_direction(PLpgSQL_stmt_fetch *stmt)
Definition: pl_funcs.c:1238
char * refname
Definition: plpgsql.h:312
PLpgSQL_expr * expr
Definition: plpgsql.h:822
List * elsif_list
Definition: plpgsql.h:599
static void free_raise(PLpgSQL_stmt_raise *stmt)
Definition: pl_funcs.c:655
PLpgSQL_stmt_block * action
Definition: plpgsql.h:1006
PLpgSQL_expr * cursor_explicit_expr
Definition: plpgsql.h:326
List * stmts
Definition: plpgsql.h:610
PLpgSQL_variable * var
Definition: plpgsql.h:719
PLpgSQL_nsitem * plpgsql_ns_lookup(PLpgSQL_nsitem *ns_cur, bool localmode, const char *name1, const char *name2, const char *name3, int *names_used)
Definition: pl_funcs.c:130
char * condname
Definition: plpgsql.h:471
PLpgSQL_type * datatype
Definition: plpgsql.h:319
static void dump_raise(PLpgSQL_stmt_raise *stmt)
Definition: pl_funcs.c:1397
void plpgsql_ns_additem(PLpgSQL_nsitem_type itemtype, int itemno, const char *name)
Definition: pl_funcs.c:92
static void dump_perform(PLpgSQL_stmt_perform *stmt)
Definition: pl_funcs.c:1279
bool isconst
Definition: plpgsql.h:314
static void dump_forc(PLpgSQL_stmt_forc *stmt)
Definition: pl_funcs.c:1121
PLpgSQL_expr * sqlstmt
Definition: plpgsql.h:895
struct PLpgSQL_condition * next
Definition: plpgsql.h:472
#define printf(...)
Definition: port.h:222
PLpgSQL_expr * dynquery
Definition: plpgsql.h:769
static void dump_rollback(PLpgSQL_stmt_rollback *stmt)
Definition: pl_funcs.c:1307
PLpgSQL_stmt_type cmd_type
Definition: plpgsql.h:562
void plpgsql_dumptree(PLpgSQL_function *func)
Definition: pl_funcs.c:1598
PLpgSQL_expr * expr
Definition: plpgsql.h:530
PLpgSQL_expr * cond
Definition: plpgsql.h:609
List * else_stmts
Definition: plpgsql.h:625
static void free_open(PLpgSQL_stmt_open *stmt)
Definition: pl_funcs.c:577
PLpgSQL_datum_type dtype
Definition: plpgsql.h:276
static void dump_fors(PLpgSQL_stmt_fors *stmt)
Definition: pl_funcs.c:1107
PLpgSQL_expr * lower
Definition: plpgsql.h:673
static void free_return(PLpgSQL_stmt_return *stmt)
Definition: pl_funcs.c:630
static PLpgSQL_nsitem * ns_top
Definition: pl_funcs.c:35
PLpgSQL_getdiag_kind kind
Definition: plpgsql.h:573
SPIPlanPtr plan
Definition: plpgsql.h:221
static void free_loop(PLpgSQL_stmt_loop *stmt)
Definition: pl_funcs.c:534
PLpgSQL_raise_option_type opt_type
Definition: plpgsql.h:871
static void dump_fetch(PLpgSQL_stmt_fetch *stmt)
Definition: pl_funcs.c:1212
static void free_dynfors(PLpgSQL_stmt_dynfors *stmt)
Definition: pl_funcs.c:697
PLpgSQL_expr * query
Definition: plpgsql.h:846
static void free_rollback(PLpgSQL_stmt_rollback *stmt)
Definition: pl_funcs.c:619
bool notnull
Definition: plpgsql.h:315
static void free_assign(PLpgSQL_stmt_assign *stmt)
Definition: pl_funcs.c:495
int cursor_explicit_argrow
Definition: plpgsql.h:327
void plpgsql_ns_pop(void)
Definition: pl_funcs.c:67
static void free_getdiag(PLpgSQL_stmt_getdiag *stmt)
Definition: pl_funcs.c:710
PLpgSQL_expr * expr
Definition: plpgsql.h:834
#define ERROR
Definition: elog.h:46
PLpgSQL_var * var
Definition: plpgsql.h:672
char ** fieldnames
Definition: plpgsql.h:381
PLpgSQL_expr * message
Definition: plpgsql.h:884
PLpgSQL_variable * target
Definition: plpgsql.h:900
PLpgSQL_label_type
Definition: plpgsql.h:51
PLpgSQL_expr * default_val
Definition: plpgsql.h:316
unsigned long use_count
Definition: plpgsql.h:1014
static void free_expr(PLpgSQL_expr *expr)
Definition: pl_funcs.c:715
static void free_fetch(PLpgSQL_stmt_fetch *stmt)
Definition: pl_funcs.c:591
static void dump_case(PLpgSQL_stmt_case *stmt)
Definition: pl_funcs.c:1013
static void free_close(PLpgSQL_stmt_close *stmt)
Definition: pl_funcs.c:597
static void free_case(PLpgSQL_stmt_case *stmt)
Definition: pl_funcs.c:518
PLpgSQL_variable * var
Definition: plpgsql.h:704
static ListCell * list_head(const List *l)
Definition: pg_list.h:125
static void dump_getdiag(PLpgSQL_stmt_getdiag *stmt)
Definition: pl_funcs.c:1572
MemoryContext fn_cxt
Definition: plpgsql.h:974
void plpgsql_ns_init(void)
Definition: pl_funcs.c:43
PLpgSQL_expr * expr
Definition: plpgsql.h:634
List * case_when_list
Definition: plpgsql.h:623
static void dump_if(PLpgSQL_stmt_if *stmt)
Definition: pl_funcs.c:983
PLpgSQL_expr * query
Definition: plpgsql.h:738
int * varnos
Definition: plpgsql.h:382
static void free_fori(PLpgSQL_stmt_fori *stmt)
Definition: pl_funcs.c:547
static void dump_return_query(PLpgSQL_stmt_return_query *stmt)
Definition: pl_funcs.c:1360
static void free_perform(PLpgSQL_stmt_perform *stmt)
Definition: pl_funcs.c:602
static void dump_return(PLpgSQL_stmt_return *stmt)
Definition: pl_funcs.c:1332
static void free_return_next(PLpgSQL_stmt_return_next *stmt)
Definition: pl_funcs.c:636
PLpgSQL_expr * expr
Definition: plpgsql.h:541
static void dump_return_next(PLpgSQL_stmt_return_next *stmt)
Definition: pl_funcs.c:1346
static void dump_loop(PLpgSQL_stmt_loop *stmt)
Definition: pl_funcs.c:1051
static void free_call(PLpgSQL_stmt_call *stmt)
Definition: pl_funcs.c:608
static void free_fors(PLpgSQL_stmt_fors *stmt)
Definition: pl_funcs.c:556
PLpgSQL_getdiag_kind
Definition: plpgsql.h:147
static void dump_close(PLpgSQL_stmt_close *stmt)
Definition: pl_funcs.c:1272
static void free_exit(PLpgSQL_stmt_exit *stmt)
Definition: pl_funcs.c:624
static char * label
PLpgSQL_datum_type dtype
Definition: plpgsql.h:421
PLpgSQL_expr * cond
Definition: plpgsql.h:811
PLpgSQL_expr * query
Definition: plpgsql.h:768
static void dump_ind(void)
Definition: pl_funcs.c:820
PLpgSQL_variable * var
Definition: plpgsql.h:735
PLpgSQL_condition * conditions
Definition: plpgsql.h:491
struct PLpgSQL_nsitem * prev
Definition: plpgsql.h:445
static void dump_while(PLpgSQL_stmt_while *stmt)
Definition: pl_funcs.c:1063
static void free_stmts(List *stmts)
Definition: pl_funcs.c:467
static void free_if(PLpgSQL_stmt_if *stmt)
Definition: pl_funcs.c:501
PLpgSQL_nsitem * plpgsql_ns_find_nearest_loop(PLpgSQL_nsitem *ns_cur)
Definition: pl_funcs.c:214
#define Assert(condition)
Definition: c.h:804
#define lfirst(lc)
Definition: pg_list.h:169
int nfields
Definition: plpgsql.h:380
PLpgSQL_exception_block * exceptions
Definition: plpgsql.h:507
static void free_return_query(PLpgSQL_stmt_return_query *stmt)
Definition: pl_funcs.c:642
const char * plpgsql_getdiag_kindname(PLpgSQL_getdiag_kind kind)
Definition: pl_funcs.c:300
static void dump_execsql(PLpgSQL_stmt_execsql *stmt)
Definition: pl_funcs.c:1485
static void free_stmt(PLpgSQL_stmt *stmt)
Definition: pl_funcs.c:375
static int dump_indent
Definition: pl_funcs.c:784
char * fn_signature
Definition: plpgsql.h:967
static void dump_dynexecute(PLpgSQL_stmt_dynexecute *stmt)
Definition: pl_funcs.c:1504
List * else_body
Definition: plpgsql.h:600
void plpgsql_ns_push(const char *label, PLpgSQL_label_type label_type)
Definition: pl_funcs.c:54
PLpgSQL_nsitem * plpgsql_ns_lookup_label(PLpgSQL_nsitem *ns_cur, const char *name)
Definition: pl_funcs.c:195
char * typname
Definition: plpgsql.h:199
PLpgSQL_expr * step
Definition: plpgsql.h:675
PLpgSQL_expr * t_expr
Definition: plpgsql.h:621
char * refname
Definition: plpgsql.h:290
PLpgSQL_expr * dynquery
Definition: plpgsql.h:847
static void free_execsql(PLpgSQL_stmt_execsql *stmt)
Definition: pl_funcs.c:679
PLpgSQL_expr * expr
Definition: plpgsql.h:785
static void dump_dynfors(PLpgSQL_stmt_dynfors *stmt)
Definition: pl_funcs.c:1541
const char * name
Definition: encode.c:561
PLpgSQL_expr * expr
Definition: plpgsql.h:519
static void dump_block(PLpgSQL_stmt_block *block)
Definition: pl_funcs.c:933
PLpgSQL_expr * expr
Definition: plpgsql.h:872
int SPI_freeplan(SPIPlanPtr plan)
Definition: spi.c:920
e
Definition: preproc-init.c:82
static void dump_foreach_a(PLpgSQL_stmt_foreach_a *stmt)
Definition: pl_funcs.c:1144
void * palloc(Size size)
Definition: mcxt.c:1062
int32 atttypmod
Definition: plpgsql.h:207
static void free_forc(PLpgSQL_stmt_forc *stmt)
Definition: pl_funcs.c:563
static void dump_expr(PLpgSQL_expr *expr)
Definition: pl_funcs.c:1592
PLpgSQL_expr * argquery
Definition: plpgsql.h:767
PLpgSQL_nsitem_type itemtype
Definition: plpgsql.h:438
#define elog(elevel,...)
Definition: elog.h:232
static void dump_commit(PLpgSQL_stmt_commit *stmt)
Definition: pl_funcs.c:1297
int i
const char * plpgsql_stmt_typename(PLpgSQL_stmt *stmt)
Definition: pl_funcs.c:232
static void dump_assert(PLpgSQL_stmt_assert *stmt)
Definition: pl_funcs.c:1466
static void dump_open(PLpgSQL_stmt_open *stmt)
Definition: pl_funcs.c:1161
PLpgSQL_expr * argquery
Definition: plpgsql.h:723
static void free_commit(PLpgSQL_stmt_commit *stmt)
Definition: pl_funcs.c:614
PLpgSQL_expr * upper
Definition: plpgsql.h:674
PLpgSQL_stmt_type cmd_type
Definition: plpgsql.h:454
static void dump_fori(PLpgSQL_stmt_fori *stmt)
Definition: pl_funcs.c:1077
static void free_while(PLpgSQL_stmt_while *stmt)
Definition: pl_funcs.c:540
PLpgSQL_expr * query
Definition: plpgsql.h:707
PLpgSQL_variable * target
Definition: plpgsql.h:781
PLpgSQL_expr * cond
Definition: plpgsql.h:883
PLpgSQL_variable * target
Definition: plpgsql.h:914
static void dump_stmts(List *stmts)
Definition: pl_funcs.c:922
static void dump_stmt(PLpgSQL_stmt *stmt)
Definition: pl_funcs.c:829
PLpgSQL_expr * default_val
Definition: plpgsql.h:396
char name[FLEXIBLE_ARRAY_MEMBER]
Definition: plpgsql.h:446
static void free_foreach_a(PLpgSQL_stmt_foreach_a *stmt)
Definition: pl_funcs.c:570
Definition: pg_list.h:50
#define _(x)
Definition: elog.c:89
static void dump_call(PLpgSQL_stmt_call *stmt)
Definition: pl_funcs.c:1288
static void dump_assign(PLpgSQL_stmt_assign *stmt)
Definition: pl_funcs.c:974
#define offsetof(type, field)
Definition: c.h:727
static void free_block(PLpgSQL_stmt_block *block)
Definition: pl_funcs.c:478
PLpgSQL_nsitem_type
Definition: plpgsql.h:41
static void dump_exit(PLpgSQL_stmt_exit *stmt)
Definition: pl_funcs.c:1317
Oid typoid
Definition: plpgsql.h:200