granicus.if.org Git - postgresql/blob - src/test/regress/regress.c

   1 /*
   2  * $Header: /cvsroot/pgsql/src/test/regress/regress.c,v 1.43 2000/07/30 20:43:54 tgl Exp $
   3  */
   4
   5 #include <float.h>                              /* faked on sunos */
   6
   7 #include "postgres.h"
   8
   9 #include "utils/geo_decls.h"    /* includes <math.h> */
  10 #include "executor/executor.h"  /* For GetAttributeByName */
  11 #include "commands/sequence.h"  /* for nextval() */
  12
  13 #define P_MAXDIG 12
  14 #define LDELIM                  '('
  15 #define RDELIM                  ')'
  16 #define DELIM                   ','
  17
  18 typedef TupleTableSlot *TUPLE;
  19
  20 extern Datum regress_dist_ptpath(PG_FUNCTION_ARGS);
  21 extern Datum regress_path_dist(PG_FUNCTION_ARGS);
  22 extern PATH *poly2path(POLYGON *poly);
  23 extern Datum interpt_pp(PG_FUNCTION_ARGS);
  24 extern void regress_lseg_construct(LSEG *lseg, Point *pt1, Point *pt2);
  25 extern Datum overpaid(PG_FUNCTION_ARGS);
  26 extern Datum boxarea(PG_FUNCTION_ARGS);
  27 extern char *reverse_name(char *string);
  28
  29 /*
  30 ** Distance from a point to a path
  31 */
  32 Datum
  33 regress_dist_ptpath(PG_FUNCTION_ARGS)
  34 {
  35         Point      *pt = PG_GETARG_POINT_P(0);
  36         PATH       *path = PG_GETARG_PATH_P(1);
  37         float8          result = 0.0;   /* keep compiler quiet */
  38         float8          tmp;
  39         int                     i;
  40         LSEG            lseg;
  41
  42         switch (path->npts)
  43         {
  44                 case 0:
  45                         PG_RETURN_NULL();
  46                 case 1:
  47                         result = point_dt(pt, &path->p[0]);
  48                         break;
  49                 default:
  50
  51                         /*
  52                          * the distance from a point to a path is the smallest
  53                          * distance from the point to any of its constituent segments.
  54                          */
  55                         Assert(path->npts > 1);
  56                         for (i = 0; i < path->npts - 1; ++i)
  57                         {
  58                                 regress_lseg_construct(&lseg, &path->p[i], &path->p[i + 1]);
  59                                 tmp = DatumGetFloat8(DirectFunctionCall2(dist_ps,
  60                                                                                                         PointPGetDatum(pt),
  61                                                                                                         LsegPGetDatum(&lseg)));
  62                                 if (i == 0 || tmp < result)
  63                                         result = tmp;
  64                         }
  65                         break;
  66         }
  67         PG_RETURN_FLOAT8(result);
  68 }
  69
  70 /* this essentially does a cartesian product of the lsegs in the
  71    two paths, and finds the min distance between any two lsegs */
  72 Datum
  73 regress_path_dist(PG_FUNCTION_ARGS)
  74 {
  75         PATH       *p1 = PG_GETARG_PATH_P(0);
  76         PATH       *p2 = PG_GETARG_PATH_P(1);
  77         bool            have_min = false;
  78         float8          min = 0.0;              /* initialize to keep compiler quiet */
  79         float8          tmp;
  80         int                     i,
  81                                 j;
  82         LSEG            seg1,
  83                                 seg2;
  84
  85         for (i = 0; i < p1->npts - 1; i++)
  86         {
  87                 for (j = 0; j < p2->npts - 1; j++)
  88                 {
  89                         regress_lseg_construct(&seg1, &p1->p[i], &p1->p[i + 1]);
  90                         regress_lseg_construct(&seg2, &p2->p[j], &p2->p[j + 1]);
  91
  92                         tmp = DatumGetFloat8(DirectFunctionCall2(lseg_distance,
  93                                                                                                          LsegPGetDatum(&seg1),
  94                                                                                                          LsegPGetDatum(&seg2)));
  95                         if (!have_min || tmp < min)
  96                         {
  97                                 min = tmp;
  98                                 have_min = true;
  99                         }
 100                 }
 101         }
 102
 103         if (! have_min)
 104                 PG_RETURN_NULL();
 105
 106         PG_RETURN_FLOAT8(min);
 107 }
 108
 109 PATH *
 110 poly2path(poly)
 111 POLYGON    *poly;
 112 {
 113         int                     i;
 114         char       *output = (char *) palloc(2 * (P_MAXDIG + 1) * poly->npts + 64);
 115         char            buf[2 * (P_MAXDIG) + 20];
 116
 117         sprintf(output, "(1, %*d", P_MAXDIG, poly->npts);
 118
 119         for (i = 0; i < poly->npts; i++)
 120         {
 121                 sprintf(buf, ",%*g,%*g", P_MAXDIG, poly->p[i].x, P_MAXDIG, poly->p[i].y);
 122                 strcat(output, buf);
 123         }
 124
 125         sprintf(buf, "%c", RDELIM);
 126         strcat(output, buf);
 127         return DatumGetPathP(DirectFunctionCall1(path_in,
 128                                                                                          CStringGetDatum(output)));
 129 }
 130
 131 /* return the point where two paths intersect, or NULL if no intersection. */
 132 Datum
 133 interpt_pp(PG_FUNCTION_ARGS)
 134 {
 135         PATH       *p1 = PG_GETARG_PATH_P(0);
 136         PATH       *p2 = PG_GETARG_PATH_P(1);
 137         int                     i,
 138                                 j;
 139         LSEG            seg1,
 140                                 seg2;
 141         bool            found;                  /* We've found the intersection */
 142
 143         found = false;                          /* Haven't found it yet */
 144
 145         for (i = 0; i < p1->npts - 1 && !found; i++)
 146         {
 147                 regress_lseg_construct(&seg1, &p1->p[i], &p1->p[i + 1]);
 148                 for (j = 0; j < p2->npts - 1 && !found; j++)
 149                 {
 150                         regress_lseg_construct(&seg2, &p2->p[j], &p2->p[j + 1]);
 151                         if (DatumGetBool(DirectFunctionCall2(lseg_intersect,
 152                                                                                                  LsegPGetDatum(&seg1),
 153                                                                                                  LsegPGetDatum(&seg2))))
 154                                 found = true;
 155                 }
 156         }
 157
 158         if (!found)
 159                 PG_RETURN_NULL();
 160
 161         /* Note: DirectFunctionCall2 will kick out an error if lseg_interpt()
 162          * returns NULL, but that should be impossible since we know the two
 163          * segments intersect.
 164          */
 165         PG_RETURN_DATUM(DirectFunctionCall2(lseg_interpt,
 166                                                                                 LsegPGetDatum(&seg1),
 167                                                                                 LsegPGetDatum(&seg2)));
 168 }
 169
 170
 171 /* like lseg_construct, but assume space already allocated */
 172 void
 173 regress_lseg_construct(lseg, pt1, pt2)
 174 LSEG       *lseg;
 175 Point      *pt1;
 176 Point      *pt2;
 177 {
 178         lseg->p[0].x = pt1->x;
 179         lseg->p[0].y = pt1->y;
 180         lseg->p[1].x = pt2->x;
 181         lseg->p[1].y = pt2->y;
 182         lseg->m = point_sl(pt1, pt2);
 183 }
 184
 185 Datum
 186 overpaid(PG_FUNCTION_ARGS)
 187 {
 188         TUPLE           tuple = (TUPLE) PG_GETARG_POINTER(0);
 189         bool            isnull;
 190         long            salary;
 191
 192         salary = (long) GetAttributeByName(tuple, "salary", &isnull);
 193         if (isnull)
 194                 PG_RETURN_NULL();
 195         PG_RETURN_BOOL(salary > 699);
 196 }
 197
 198 /* New type "widget"
 199  * This used to be "circle", but I added circle to builtins,
 200  *      so needed to make sure the names do not collide. - tgl 97/04/21
 201  */
 202
 203 typedef struct
 204 {
 205         Point           center;
 206         double          radius;
 207 }                       WIDGET;
 208
 209 WIDGET     *widget_in(char *str);
 210 char       *widget_out(WIDGET * widget);
 211 extern Datum pt_in_widget(PG_FUNCTION_ARGS);
 212
 213 #define NARGS   3
 214
 215 WIDGET *
 216 widget_in(str)
 217 char       *str;
 218 {
 219         char       *p,
 220                            *coord[NARGS],
 221                                 buf2[1000];
 222         int                     i;
 223         WIDGET     *result;
 224
 225         if (str == NULL)
 226                 return NULL;
 227         for (i = 0, p = str; *p && i < NARGS && *p != RDELIM; p++)
 228                 if (*p == ',' || (*p == LDELIM && !i))
 229                         coord[i++] = p + 1;
 230         if (i < NARGS - 1)
 231                 return NULL;
 232         result = (WIDGET *) palloc(sizeof(WIDGET));
 233         result->center.x = atof(coord[0]);
 234         result->center.y = atof(coord[1]);
 235         result->radius = atof(coord[2]);
 236
 237         sprintf(buf2, "widget_in: read (%f, %f, %f)\n", result->center.x,
 238                         result->center.y, result->radius);
 239         return result;
 240 }
 241
 242 char *
 243 widget_out(widget)
 244 WIDGET     *widget;
 245 {
 246         char       *result;
 247
 248         if (widget == NULL)
 249                 return NULL;
 250
 251         result = (char *) palloc(60);
 252         sprintf(result, "(%g,%g,%g)",
 253                         widget->center.x, widget->center.y, widget->radius);
 254         return result;
 255 }
 256
 257 Datum
 258 pt_in_widget(PG_FUNCTION_ARGS)
 259 {
 260         Point      *point = PG_GETARG_POINT_P(0);
 261         WIDGET     *widget = (WIDGET *) PG_GETARG_POINTER(1);
 262
 263         PG_RETURN_BOOL(point_dt(point, &widget->center) < widget->radius);
 264 }
 265
 266 #define ABS(X) ((X) >= 0 ? (X) : -(X))
 267
 268 Datum
 269 boxarea(PG_FUNCTION_ARGS)
 270 {
 271         BOX                *box = PG_GETARG_BOX_P(0);
 272         double          width,
 273                                 height;
 274
 275         width = ABS(box->high.x - box->low.x);
 276         height = ABS(box->high.y - box->low.y);
 277         PG_RETURN_FLOAT8(width * height);
 278 }
 279
 280 char *
 281 reverse_name(string)
 282 char       *string;
 283 {
 284         int                     i;
 285         int                     len;
 286         char       *new_string;
 287
 288         if (!(new_string = palloc(NAMEDATALEN)))
 289         {
 290                 fprintf(stderr, "reverse_name: palloc failed\n");
 291                 return NULL;
 292         }
 293         MemSet(new_string, 0, NAMEDATALEN);
 294         for (i = 0; i < NAMEDATALEN && string[i]; ++i)
 295                 ;
 296         if (i == NAMEDATALEN || !string[i])
 297                 --i;
 298         len = i;
 299         for (; i >= 0; --i)
 300                 new_string[len - i] = string[i];
 301         return new_string;
 302 }
 303
 304 #include "executor/spi.h"               /* this is what you need to work with SPI */
 305 #include "commands/trigger.h"   /* -"- and triggers */
 306
 307 static TransactionId fd17b_xid = InvalidTransactionId;
 308 static TransactionId fd17a_xid = InvalidTransactionId;
 309 static int      fd17b_level = 0;
 310 static int      fd17a_level = 0;
 311 static bool fd17b_recursion = true;
 312 static bool fd17a_recursion = true;
 313 extern Datum funny_dup17(PG_FUNCTION_ARGS);
 314
 315 Datum
 316 funny_dup17(PG_FUNCTION_ARGS)
 317 {
 318         TriggerData *trigdata = (TriggerData *) fcinfo->context;
 319         TransactionId *xid;
 320         int                *level;
 321         bool       *recursion;
 322         Relation        rel;
 323         TupleDesc       tupdesc;
 324         HeapTuple       tuple;
 325         char       *query,
 326                            *fieldval,
 327                            *fieldtype;
 328         char       *when;
 329         int                     inserted;
 330         int                     selected = 0;
 331         int                     ret;
 332
 333         if (!CALLED_AS_TRIGGER(fcinfo))
 334                 elog(ERROR, "funny_dup17: not fired by trigger manager");
 335
 336         tuple = trigdata->tg_trigtuple;
 337         rel = trigdata->tg_relation;
 338         tupdesc = rel->rd_att;
 339         if (TRIGGER_FIRED_BEFORE(trigdata->tg_event))
 340         {
 341                 xid = &fd17b_xid;
 342                 level = &fd17b_level;
 343                 recursion = &fd17b_recursion;
 344                 when = "BEFORE";
 345         }
 346         else
 347         {
 348                 xid = &fd17a_xid;
 349                 level = &fd17a_level;
 350                 recursion = &fd17a_recursion;
 351                 when = "AFTER ";
 352         }
 353
 354         if (!TransactionIdIsCurrentTransactionId(*xid))
 355         {
 356                 *xid = GetCurrentTransactionId();
 357                 *level = 0;
 358                 *recursion = true;
 359         }
 360
 361         if (*level == 17)
 362         {
 363                 *recursion = false;
 364                 return PointerGetDatum(tuple);
 365         }
 366
 367         if (!(*recursion))
 368                 return PointerGetDatum(tuple);
 369
 370         (*level)++;
 371
 372         SPI_connect();
 373
 374         fieldval = SPI_getvalue(tuple, tupdesc, 1);
 375         fieldtype = SPI_gettype(tupdesc, 1);
 376
 377         query = (char *) palloc(100 + NAMEDATALEN * 3 +
 378                                                         strlen(fieldval) + strlen(fieldtype));
 379
 380         sprintf(query, "insert into %s select * from %s where %s = '%s'::%s",
 381                         SPI_getrelname(rel), SPI_getrelname(rel),
 382                         SPI_fname(tupdesc, 1),
 383                         fieldval, fieldtype);
 384
 385         if ((ret = SPI_exec(query, 0)) < 0)
 386                 elog(ERROR, "funny_dup17 (fired %s) on level %3d: SPI_exec (insert ...) returned %d",
 387                          when, *level, ret);
 388
 389         inserted = SPI_processed;
 390
 391         sprintf(query, "select count (*) from %s where %s = '%s'::%s",
 392                         SPI_getrelname(rel),
 393                         SPI_fname(tupdesc, 1),
 394                         fieldval, fieldtype);
 395
 396         if ((ret = SPI_exec(query, 0)) < 0)
 397                 elog(ERROR, "funny_dup17 (fired %s) on level %3d: SPI_exec (select ...) returned %d",
 398                          when, *level, ret);
 399
 400         if (SPI_processed > 0)
 401         {
 402                 selected = DatumGetInt32(DirectFunctionCall1(int4in,
 403                                                                  CStringGetDatum(SPI_getvalue(
 404                                                                            SPI_tuptable->vals[0],
 405                                                                            SPI_tuptable->tupdesc,
 406                                                                            1
 407                                                                            ))));
 408         }
 409
 410         elog(NOTICE, "funny_dup17 (fired %s) on level %3d: %d/%d tuples inserted/selected",
 411                  when, *level, inserted, selected);
 412
 413         SPI_finish();
 414
 415         (*level)--;
 416
 417         if (*level == 0)
 418                 *xid = InvalidTransactionId;
 419
 420         return PointerGetDatum(tuple);
 421 }
 422
 423 extern Datum ttdummy(PG_FUNCTION_ARGS);
 424 extern Datum set_ttdummy(PG_FUNCTION_ARGS);
 425
 426 #define TTDUMMY_INFINITY        999999
 427
 428 static void *splan = NULL;
 429 static bool ttoff = false;
 430
 431 Datum
 432 ttdummy(PG_FUNCTION_ARGS)
 433 {
 434         TriggerData *trigdata = (TriggerData *) fcinfo->context;
 435         Trigger    *trigger;            /* to get trigger name */
 436         char      **args;                       /* arguments */
 437         int                     attnum[2];              /* fnumbers of start/stop columns */
 438         Datum           oldon,
 439                                 oldoff;
 440         Datum           newon,
 441                                 newoff;
 442         Datum      *cvals;                      /* column values */
 443         char       *cnulls;                     /* column nulls */
 444         char       *relname;            /* triggered relation name */
 445         Relation        rel;                    /* triggered relation */
 446         HeapTuple       trigtuple;
 447         HeapTuple       newtuple = NULL;
 448         HeapTuple       rettuple;
 449         TupleDesc       tupdesc;                /* tuple description */
 450         int                     natts;                  /* # of attributes */
 451         bool            isnull;                 /* to know is some column NULL or not */
 452         int                     ret;
 453         int                     i;
 454
 455         if (!CALLED_AS_TRIGGER(fcinfo))
 456                 elog(ERROR, "ttdummy: not fired by trigger manager");
 457         if (TRIGGER_FIRED_FOR_STATEMENT(trigdata->tg_event))
 458                 elog(ERROR, "ttdummy: can't process STATEMENT events");
 459         if (TRIGGER_FIRED_AFTER(trigdata->tg_event))
 460                 elog(ERROR, "ttdummy: must be fired before event");
 461         if (TRIGGER_FIRED_BY_INSERT(trigdata->tg_event))
 462                 elog(ERROR, "ttdummy: can't process INSERT event");
 463         if (TRIGGER_FIRED_BY_UPDATE(trigdata->tg_event))
 464                 newtuple = trigdata->tg_newtuple;
 465
 466         trigtuple = trigdata->tg_trigtuple;
 467
 468         rel = trigdata->tg_relation;
 469         relname = SPI_getrelname(rel);
 470
 471         /* check if TT is OFF for this relation */
 472         if (ttoff)                                      /* OFF - nothing to do */
 473         {
 474                 pfree(relname);
 475                 return PointerGetDatum((newtuple != NULL) ? newtuple : trigtuple);
 476         }
 477
 478         trigger = trigdata->tg_trigger;
 479
 480         if (trigger->tgnargs != 2)
 481                 elog(ERROR, "ttdummy (%s): invalid (!= 2) number of arguments %d",
 482                          relname, trigger->tgnargs);
 483
 484         args = trigger->tgargs;
 485         tupdesc = rel->rd_att;
 486         natts = tupdesc->natts;
 487
 488         for (i = 0; i < 2; i++)
 489         {
 490                 attnum[i] = SPI_fnumber(tupdesc, args[i]);
 491                 if (attnum[i] < 0)
 492                         elog(ERROR, "ttdummy (%s): there is no attribute %s", relname, args[i]);
 493                 if (SPI_gettypeid(tupdesc, attnum[i]) != INT4OID)
 494                         elog(ERROR, "ttdummy (%s): attributes %s and %s must be of abstime type",
 495                                  relname, args[0], args[1]);
 496         }
 497
 498         oldon = SPI_getbinval(trigtuple, tupdesc, attnum[0], &isnull);
 499         if (isnull)
 500                 elog(ERROR, "ttdummy (%s): %s must be NOT NULL", relname, args[0]);
 501
 502         oldoff = SPI_getbinval(trigtuple, tupdesc, attnum[1], &isnull);
 503         if (isnull)
 504                 elog(ERROR, "ttdummy (%s): %s must be NOT NULL", relname, args[1]);
 505
 506         if (newtuple != NULL)           /* UPDATE */
 507         {
 508                 newon = SPI_getbinval(newtuple, tupdesc, attnum[0], &isnull);
 509                 if (isnull)
 510                         elog(ERROR, "ttdummy (%s): %s must be NOT NULL", relname, args[0]);
 511                 newoff = SPI_getbinval(newtuple, tupdesc, attnum[1], &isnull);
 512                 if (isnull)
 513                         elog(ERROR, "ttdummy (%s): %s must be NOT NULL", relname, args[1]);
 514
 515                 if (oldon != newon || oldoff != newoff)
 516                         elog(ERROR, "ttdummy (%s): you can't change %s and/or %s columns (use set_ttdummy)",
 517                                  relname, args[0], args[1]);
 518
 519                 if (newoff != TTDUMMY_INFINITY)
 520                 {
 521                         pfree(relname);         /* allocated in upper executor context */
 522                         return PointerGetDatum(NULL);
 523                 }
 524         }
 525         else if (oldoff != TTDUMMY_INFINITY)            /* DELETE */
 526         {
 527                 pfree(relname);
 528                 return PointerGetDatum(NULL);
 529         }
 530
 531         {
 532                 text   *seqname = DatumGetTextP(DirectFunctionCall1(textin,
 533                                                                                         CStringGetDatum("ttdummy_seq")));
 534
 535                 newoff = DirectFunctionCall1(nextval,
 536                                                                          PointerGetDatum(seqname));
 537                 pfree(seqname);
 538         }
 539
 540         /* Connect to SPI manager */
 541         if ((ret = SPI_connect()) < 0)
 542                 elog(ERROR, "ttdummy (%s): SPI_connect returned %d", relname, ret);
 543
 544         /* Fetch tuple values and nulls */
 545         cvals = (Datum *) palloc(natts * sizeof(Datum));
 546         cnulls = (char *) palloc(natts * sizeof(char));
 547         for (i = 0; i < natts; i++)
 548         {
 549                 cvals[i] = SPI_getbinval((newtuple != NULL) ? newtuple : trigtuple,
 550                                                                  tupdesc, i + 1, &isnull);
 551                 cnulls[i] = (isnull) ? 'n' : ' ';
 552         }
 553
 554         /* change date column(s) */
 555         if (newtuple)                           /* UPDATE */
 556         {
 557                 cvals[attnum[0] - 1] = newoff;  /* start_date eq current date */
 558                 cnulls[attnum[0] - 1] = ' ';
 559                 cvals[attnum[1] - 1] = TTDUMMY_INFINITY;                /* stop_date eq INFINITY */
 560                 cnulls[attnum[1] - 1] = ' ';
 561         }
 562         else
 563 /* DELETE */
 564         {
 565                 cvals[attnum[1] - 1] = newoff;  /* stop_date eq current date */
 566                 cnulls[attnum[1] - 1] = ' ';
 567         }
 568
 569         /* if there is no plan ... */
 570         if (splan == NULL)
 571         {
 572                 void       *pplan;
 573                 Oid                *ctypes;
 574                 char       *query;
 575
 576                 /* allocate space in preparation */
 577                 ctypes = (Oid *) palloc(natts * sizeof(Oid));
 578                 query = (char *) palloc(100 + 16 * natts);
 579
 580                 /*
 581                  * Construct query: INSERT INTO _relation_ VALUES ($1, ...)
 582                  */
 583                 sprintf(query, "INSERT INTO %s VALUES (", relname);
 584                 for (i = 1; i <= natts; i++)
 585                 {
 586                         sprintf(query + strlen(query), "$%d%s",
 587                                         i, (i < natts) ? ", " : ")");
 588                         ctypes[i - 1] = SPI_gettypeid(tupdesc, i);
 589                 }
 590
 591                 /* Prepare plan for query */
 592                 pplan = SPI_prepare(query, natts, ctypes);
 593                 if (pplan == NULL)
 594                         elog(ERROR, "ttdummy (%s): SPI_prepare returned %d", relname, SPI_result);
 595
 596                 pplan = SPI_saveplan(pplan);
 597                 if (pplan == NULL)
 598                         elog(ERROR, "ttdummy (%s): SPI_saveplan returned %d", relname, SPI_result);
 599
 600                 splan = pplan;
 601         }
 602
 603         ret = SPI_execp(splan, cvals, cnulls, 0);
 604
 605         if (ret < 0)
 606                 elog(ERROR, "ttdummy (%s): SPI_execp returned %d", relname, ret);
 607
 608         /* Tuple to return to upper Executor ... */
 609         if (newtuple)                           /* UPDATE */
 610         {
 611                 HeapTuple       tmptuple;
 612
 613                 tmptuple = SPI_copytuple(trigtuple);
 614                 rettuple = SPI_modifytuple(rel, tmptuple, 1, &(attnum[1]), &newoff, NULL);
 615                 SPI_freetuple(tmptuple);
 616         }
 617         else
 618 /* DELETE */
 619                 rettuple = trigtuple;
 620
 621         SPI_finish();                           /* don't forget say Bye to SPI mgr */
 622
 623         pfree(relname);
 624
 625         return PointerGetDatum(rettuple);
 626 }
 627
 628 Datum
 629 set_ttdummy(PG_FUNCTION_ARGS)
 630 {
 631         int32           on = PG_GETARG_INT32(0);
 632
 633         if (ttoff)                                      /* OFF currently */
 634         {
 635                 if (on == 0)
 636                         PG_RETURN_INT32(0);
 637
 638                 /* turn ON */
 639                 ttoff = false;
 640                 PG_RETURN_INT32(0);
 641         }
 642
 643         /* ON currently */
 644         if (on != 0)
 645                 PG_RETURN_INT32(1);
 646
 647         /* turn OFF */
 648         ttoff = true;
 649
 650         PG_RETURN_INT32(1);
 651 }