PostGIS  2.3.7dev-r@@SVN_REVISION@@
void errorIfGeometryCollection ( GSERIALIZED g1,
GSERIALIZED g2 
)

Throws an ereport ERROR if either geometry is a COLLECTIONTYPE.

Additionally displays a HINT of the first 80 characters of the WKT representation of the problematic geometry so a user knows which parameter and which geometry is causing the problem.

Definition at line 1427 of file postgis/lwgeom_geos.c.

References COLLECTIONTYPE, gserialized_get_type(), lwgeom_free(), lwgeom_from_gserialized(), lwgeom_to_wkt(), lwmessage_truncate(), and WKT_SFSQL.

Referenced by contains(), containsproperly(), coveredby(), covers(), crosses(), disjoint(), geos_intersects(), overlaps(), relate_full(), relate_pattern(), ST_Equals(), and touches().

1428 {
1429  int t1 = gserialized_get_type(g1);
1430  int t2 = gserialized_get_type(g2);
1431 
1432  char *hintmsg;
1433  char *hintwkt;
1434  size_t hintsz;
1435  LWGEOM *lwgeom;
1436 
1437  if ( t1 == COLLECTIONTYPE)
1438  {
1439  lwgeom = lwgeom_from_gserialized(g1);
1440  hintwkt = lwgeom_to_wkt(lwgeom, WKT_SFSQL, DBL_DIG, &hintsz);
1441  lwgeom_free(lwgeom);
1442  hintmsg = lwmessage_truncate(hintwkt, 0, hintsz-1, 80, 1);
1443  ereport(ERROR,
1444  (errmsg("Relate Operation called with a LWGEOMCOLLECTION type. This is unsupported."),
1445  errhint("Change argument 1: '%s'", hintmsg))
1446  );
1447  pfree(hintwkt);
1448  pfree(hintmsg);
1449  }
1450  else if (t2 == COLLECTIONTYPE)
1451  {
1452  lwgeom = lwgeom_from_gserialized(g2);
1453  hintwkt = lwgeom_to_wkt(lwgeom, WKT_SFSQL, DBL_DIG, &hintsz);
1454  hintmsg = lwmessage_truncate(hintwkt, 0, hintsz-1, 80, 1);
1455  lwgeom_free(lwgeom);
1456  ereport(ERROR,
1457  (errmsg("Relate Operation called with a LWGEOMCOLLECTION type. This is unsupported."),
1458  errhint("Change argument 2: '%s'", hintmsg))
1459  );
1460  pfree(hintwkt);
1461  pfree(hintmsg);
1462  }
1463 }
uint32_t gserialized_get_type(const GSERIALIZED *s)
Extract the geometry type from the serialized form (it hides in the anonymous data area...
Definition: g_serialized.c:69
char * lwgeom_to_wkt(const LWGEOM *geom, uint8_t variant, int precision, size_t *size_out)
WKT emitter function.
Definition: lwout_wkt.c:669
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1063
char * lwmessage_truncate(char *str, int startpos, int endpos, int maxlength, int truncdirection)
Definition: lwutil.c:292
#define WKT_SFSQL
Definition: liblwgeom.h:2056
#define COLLECTIONTYPE
Definition: liblwgeom.h:90

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