2 * $Header: /cvsroot/pgsql/src/test/regress/regress.c,v 1.41 2000/07/05 23:12:09 tgl Exp $
5 #include <float.h> /* faked on sunos */
9 #include "utils/geo_decls.h" /* includes <math.h> */
10 #include "executor/executor.h" /* For GetAttributeByName */
11 #include "commands/sequence.h" /* for nextval() */
18 typedef TupleTableSlot *TUPLE;
20 extern double *regress_dist_ptpath(Point *pt, PATH *path);
21 extern double *regress_path_dist(PATH *p1, PATH *p2);
22 extern PATH *poly2path(POLYGON *poly);
23 extern Point *interpt_pp(PATH *p1, PATH *p2);
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);
30 ** Distance from a point to a path
33 regress_dist_ptpath(pt, path)
45 result = palloc(sizeof(double));
46 *result = Abs((double) DBL_MAX); /* +infinity */
49 result = point_distance(pt, &path->p[0]);
54 * the distance from a point to a path is the smallest
55 * distance from the point to any of its constituent segments.
57 Assert(path->npts > 1);
58 result = palloc(sizeof(double));
59 for (i = 0; i < path->npts - 1; ++i)
61 regress_lseg_construct(&lseg, &path->p[i], &path->p[i + 1]);
62 tmp = dist_ps(pt, &lseg);
63 if (i == 0 || *tmp < *result)
73 /* this essentially does a cartesian product of the lsegs in the
74 two paths, and finds the min distance between any two lsegs */
76 regress_path_dist(p1, p2)
87 regress_lseg_construct(&seg1, &p1->p[0], &p1->p[1]);
88 regress_lseg_construct(&seg2, &p2->p[0], &p2->p[1]);
89 min = lseg_distance(&seg1, &seg2);
91 for (i = 0; i < p1->npts - 1; i++)
92 for (j = 0; j < p2->npts - 1; j++)
94 regress_lseg_construct(&seg1, &p1->p[i], &p1->p[i + 1]);
95 regress_lseg_construct(&seg2, &p2->p[j], &p2->p[j + 1]);
97 if (*min < *(tmp = lseg_distance(&seg1, &seg2)))
110 char *output = (char *) palloc(2 * (P_MAXDIG + 1) * poly->npts + 64);
111 char buf[2 * (P_MAXDIG) + 20];
113 sprintf(output, "(1, %*d", P_MAXDIG, poly->npts);
115 for (i = 0; i < poly->npts; i++)
117 sprintf(buf, ",%*g,%*g", P_MAXDIG, poly->p[i].x, P_MAXDIG, poly->p[i].y);
121 sprintf(buf, "%c", RDELIM);
123 return path_in(output);
126 /* return the point where two paths intersect. Assumes that they do. */
143 bool found; /* We've found the intersection */
145 found = false; /* Haven't found it yet */
147 for (i = 0; i < p1->npts - 1 && !found; i++)
148 for (j = 0; j < p2->npts - 1 && !found; j++)
150 regress_lseg_construct(&seg1, &p1->p[i], &p1->p[i + 1]);
151 regress_lseg_construct(&seg2, &p2->p[j], &p2->p[j + 1]);
152 if (lseg_intersect(&seg1, &seg2))
157 ln = line_construct_pp(&seg2.p[0], &seg2.p[1]);
158 retval = interpt_sl(&seg1, ln);
160 retval = lseg_interpt(&seg1, &seg2);
166 /* like lseg_construct, but assume space already allocated */
168 regress_lseg_construct(lseg, pt1, pt2)
173 lseg->p[0].x = pt1->x;
174 lseg->p[0].y = pt1->y;
175 lseg->p[1].x = pt2->x;
176 lseg->p[1].y = pt2->y;
177 lseg->m = point_sl(pt1, pt2);
181 overpaid(PG_FUNCTION_ARGS)
183 TUPLE tuple = (TUPLE) PG_GETARG_POINTER(0);
187 salary = (long) GetAttributeByName(tuple, "salary", &isnull);
190 PG_RETURN_BOOL(salary > 699);
194 * This used to be "circle", but I added circle to builtins,
195 * so needed to make sure the names do not collide. - tgl 97/04/21
204 WIDGET *widget_in(char *str);
205 char *widget_out(WIDGET * widget);
206 extern Datum pt_in_widget(PG_FUNCTION_ARGS);
222 for (i = 0, p = str; *p && i < NARGS && *p != RDELIM; p++)
223 if (*p == ',' || (*p == LDELIM && !i))
227 result = (WIDGET *) palloc(sizeof(WIDGET));
228 result->center.x = atof(coord[0]);
229 result->center.y = atof(coord[1]);
230 result->radius = atof(coord[2]);
232 sprintf(buf2, "widget_in: read (%f, %f, %f)\n", result->center.x,
233 result->center.y, result->radius);
246 result = (char *) palloc(60);
247 sprintf(result, "(%g,%g,%g)",
248 widget->center.x, widget->center.y, widget->radius);
253 pt_in_widget(PG_FUNCTION_ARGS)
255 Point *point = PG_GETARG_POINT_P(0);
256 WIDGET *widget = (WIDGET *) PG_GETARG_POINTER(1);
258 PG_RETURN_BOOL(point_dt(point, &widget->center) < widget->radius);
261 #define ABS(X) ((X) >= 0 ? (X) : -(X))
264 boxarea(PG_FUNCTION_ARGS)
266 BOX *box = PG_GETARG_BOX_P(0);
270 width = ABS(box->high.x - box->low.x);
271 height = ABS(box->high.y - box->low.y);
272 PG_RETURN_FLOAT8(width * height);
283 if (!(new_string = palloc(NAMEDATALEN)))
285 fprintf(stderr, "reverse_name: palloc failed\n");
288 MemSet(new_string, 0, NAMEDATALEN);
289 for (i = 0; i < NAMEDATALEN && string[i]; ++i)
291 if (i == NAMEDATALEN || !string[i])
295 new_string[len - i] = string[i];
299 #include "executor/spi.h" /* this is what you need to work with SPI */
300 #include "commands/trigger.h" /* -"- and triggers */
302 static TransactionId fd17b_xid = InvalidTransactionId;
303 static TransactionId fd17a_xid = InvalidTransactionId;
304 static int fd17b_level = 0;
305 static int fd17a_level = 0;
306 static bool fd17b_recursion = true;
307 static bool fd17a_recursion = true;
308 extern Datum funny_dup17(PG_FUNCTION_ARGS);
311 funny_dup17(PG_FUNCTION_ARGS)
313 TriggerData *trigdata = (TriggerData *) fcinfo->context;
328 if (!CALLED_AS_TRIGGER(fcinfo))
329 elog(ERROR, "funny_dup17: not fired by trigger manager");
331 tuple = trigdata->tg_trigtuple;
332 rel = trigdata->tg_relation;
333 tupdesc = rel->rd_att;
334 if (TRIGGER_FIRED_BEFORE(trigdata->tg_event))
337 level = &fd17b_level;
338 recursion = &fd17b_recursion;
344 level = &fd17a_level;
345 recursion = &fd17a_recursion;
349 if (!TransactionIdIsCurrentTransactionId(*xid))
351 *xid = GetCurrentTransactionId();
359 return PointerGetDatum(tuple);
363 return PointerGetDatum(tuple);
369 fieldval = SPI_getvalue(tuple, tupdesc, 1);
370 fieldtype = SPI_gettype(tupdesc, 1);
372 query = (char *) palloc(100 + NAMEDATALEN * 3 +
373 strlen(fieldval) + strlen(fieldtype));
375 sprintf(query, "insert into %s select * from %s where %s = '%s'::%s",
376 SPI_getrelname(rel), SPI_getrelname(rel),
377 SPI_fname(tupdesc, 1),
378 fieldval, fieldtype);
380 if ((ret = SPI_exec(query, 0)) < 0)
381 elog(ERROR, "funny_dup17 (fired %s) on level %3d: SPI_exec (insert ...) returned %d",
384 inserted = SPI_processed;
386 sprintf(query, "select count (*) from %s where %s = '%s'::%s",
388 SPI_fname(tupdesc, 1),
389 fieldval, fieldtype);
391 if ((ret = SPI_exec(query, 0)) < 0)
392 elog(ERROR, "funny_dup17 (fired %s) on level %3d: SPI_exec (select ...) returned %d",
395 if (SPI_processed > 0)
397 selected = DatumGetInt32(DirectFunctionCall1(int4in,
398 CStringGetDatum(SPI_getvalue(
399 SPI_tuptable->vals[0],
400 SPI_tuptable->tupdesc,
405 elog(NOTICE, "funny_dup17 (fired %s) on level %3d: %d/%d tuples inserted/selected",
406 when, *level, inserted, selected);
413 *xid = InvalidTransactionId;
415 return PointerGetDatum(tuple);
418 extern Datum ttdummy(PG_FUNCTION_ARGS);
419 extern Datum set_ttdummy(PG_FUNCTION_ARGS);
421 #define TTDUMMY_INFINITY 999999
423 static void *splan = NULL;
424 static bool ttoff = false;
427 ttdummy(PG_FUNCTION_ARGS)
429 TriggerData *trigdata = (TriggerData *) fcinfo->context;
430 Trigger *trigger; /* to get trigger name */
431 char **args; /* arguments */
432 int attnum[2]; /* fnumbers of start/stop columns */
437 Datum *cvals; /* column values */
438 char *cnulls; /* column nulls */
439 char *relname; /* triggered relation name */
440 Relation rel; /* triggered relation */
442 HeapTuple newtuple = NULL;
444 TupleDesc tupdesc; /* tuple description */
445 int natts; /* # of attributes */
446 bool isnull; /* to know is some column NULL or not */
450 if (!CALLED_AS_TRIGGER(fcinfo))
451 elog(ERROR, "ttdummy: not fired by trigger manager");
452 if (TRIGGER_FIRED_FOR_STATEMENT(trigdata->tg_event))
453 elog(ERROR, "ttdummy: can't process STATEMENT events");
454 if (TRIGGER_FIRED_AFTER(trigdata->tg_event))
455 elog(ERROR, "ttdummy: must be fired before event");
456 if (TRIGGER_FIRED_BY_INSERT(trigdata->tg_event))
457 elog(ERROR, "ttdummy: can't process INSERT event");
458 if (TRIGGER_FIRED_BY_UPDATE(trigdata->tg_event))
459 newtuple = trigdata->tg_newtuple;
461 trigtuple = trigdata->tg_trigtuple;
463 rel = trigdata->tg_relation;
464 relname = SPI_getrelname(rel);
466 /* check if TT is OFF for this relation */
467 if (ttoff) /* OFF - nothing to do */
470 return PointerGetDatum((newtuple != NULL) ? newtuple : trigtuple);
473 trigger = trigdata->tg_trigger;
475 if (trigger->tgnargs != 2)
476 elog(ERROR, "ttdummy (%s): invalid (!= 2) number of arguments %d",
477 relname, trigger->tgnargs);
479 args = trigger->tgargs;
480 tupdesc = rel->rd_att;
481 natts = tupdesc->natts;
483 for (i = 0; i < 2; i++)
485 attnum[i] = SPI_fnumber(tupdesc, args[i]);
487 elog(ERROR, "ttdummy (%s): there is no attribute %s", relname, args[i]);
488 if (SPI_gettypeid(tupdesc, attnum[i]) != INT4OID)
489 elog(ERROR, "ttdummy (%s): attributes %s and %s must be of abstime type",
490 relname, args[0], args[1]);
493 oldon = SPI_getbinval(trigtuple, tupdesc, attnum[0], &isnull);
495 elog(ERROR, "ttdummy (%s): %s must be NOT NULL", relname, args[0]);
497 oldoff = SPI_getbinval(trigtuple, tupdesc, attnum[1], &isnull);
499 elog(ERROR, "ttdummy (%s): %s must be NOT NULL", relname, args[1]);
501 if (newtuple != NULL) /* UPDATE */
503 newon = SPI_getbinval(newtuple, tupdesc, attnum[0], &isnull);
505 elog(ERROR, "ttdummy (%s): %s must be NOT NULL", relname, args[0]);
506 newoff = SPI_getbinval(newtuple, tupdesc, attnum[1], &isnull);
508 elog(ERROR, "ttdummy (%s): %s must be NOT NULL", relname, args[1]);
510 if (oldon != newon || oldoff != newoff)
511 elog(ERROR, "ttdummy (%s): you can't change %s and/or %s columns (use set_ttdummy)",
512 relname, args[0], args[1]);
514 if (newoff != TTDUMMY_INFINITY)
516 pfree(relname); /* allocated in upper executor context */
517 return PointerGetDatum(NULL);
520 else if (oldoff != TTDUMMY_INFINITY) /* DELETE */
523 return PointerGetDatum(NULL);
527 text *seqname = DatumGetTextP(DirectFunctionCall1(textin,
528 CStringGetDatum("ttdummy_seq")));
530 newoff = DirectFunctionCall1(nextval,
531 PointerGetDatum(seqname));
535 /* Connect to SPI manager */
536 if ((ret = SPI_connect()) < 0)
537 elog(ERROR, "ttdummy (%s): SPI_connect returned %d", relname, ret);
539 /* Fetch tuple values and nulls */
540 cvals = (Datum *) palloc(natts * sizeof(Datum));
541 cnulls = (char *) palloc(natts * sizeof(char));
542 for (i = 0; i < natts; i++)
544 cvals[i] = SPI_getbinval((newtuple != NULL) ? newtuple : trigtuple,
545 tupdesc, i + 1, &isnull);
546 cnulls[i] = (isnull) ? 'n' : ' ';
549 /* change date column(s) */
550 if (newtuple) /* UPDATE */
552 cvals[attnum[0] - 1] = newoff; /* start_date eq current date */
553 cnulls[attnum[0] - 1] = ' ';
554 cvals[attnum[1] - 1] = TTDUMMY_INFINITY; /* stop_date eq INFINITY */
555 cnulls[attnum[1] - 1] = ' ';
560 cvals[attnum[1] - 1] = newoff; /* stop_date eq current date */
561 cnulls[attnum[1] - 1] = ' ';
564 /* if there is no plan ... */
571 /* allocate space in preparation */
572 ctypes = (Oid *) palloc(natts * sizeof(Oid));
573 query = (char *) palloc(100 + 16 * natts);
576 * Construct query: INSERT INTO _relation_ VALUES ($1, ...)
578 sprintf(query, "INSERT INTO %s VALUES (", relname);
579 for (i = 1; i <= natts; i++)
581 sprintf(query + strlen(query), "$%d%s",
582 i, (i < natts) ? ", " : ")");
583 ctypes[i - 1] = SPI_gettypeid(tupdesc, i);
586 /* Prepare plan for query */
587 pplan = SPI_prepare(query, natts, ctypes);
589 elog(ERROR, "ttdummy (%s): SPI_prepare returned %d", relname, SPI_result);
591 pplan = SPI_saveplan(pplan);
593 elog(ERROR, "ttdummy (%s): SPI_saveplan returned %d", relname, SPI_result);
598 ret = SPI_execp(splan, cvals, cnulls, 0);
601 elog(ERROR, "ttdummy (%s): SPI_execp returned %d", relname, ret);
603 /* Tuple to return to upper Executor ... */
604 if (newtuple) /* UPDATE */
608 tmptuple = SPI_copytuple(trigtuple);
609 rettuple = SPI_modifytuple(rel, tmptuple, 1, &(attnum[1]), &newoff, NULL);
610 SPI_freetuple(tmptuple);
614 rettuple = trigtuple;
616 SPI_finish(); /* don't forget say Bye to SPI mgr */
620 return PointerGetDatum(rettuple);
624 set_ttdummy(PG_FUNCTION_ARGS)
626 int32 on = PG_GETARG_INT32(0);
628 if (ttoff) /* OFF currently */