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Optimized GIS functions

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heap/hp_delete.c:
  Added comments
mysql-test/r/gis.result:
  Updated results after name changes (all results line are unchanged)
mysql-test/r/show_check.result:
  Update test results after fix in hp_delete.cc
mysql-test/t/gis.test:
  Changed table names to longer, hopefully non conflicting ones.
  Added missing drop table
mysys/hash.c:
  Inendation cleanup
mysys/tree.c:
  Updated comments
  Decrease tree->allocated on delete (for status)
sql/field.cc:
  Added safety checking for GIS objects
sql/gstream.cc:
  Added copyright message
  Made a lot of speed/space optimizations
  Changed class names to be MySQL compliant
sql/gstream.h:
  Made a lot of speed/space optimizations
  Changed class names to be MySQL compliant
sql/item_create.cc:
  Indentation fixup
sql/item_geofunc.cc:
  Use new gis interface functions and new gis class names.
  Simple optimizations
  Indentation fixups
  Fixed a lot of unlikely but possible errors.
sql/item_geofunc.h:
  Moved SRID_SIZE to spatial.h
sql/spatial.cc:
  Added copyright message
  Made a lot of speed/space optimizations
  Changed class names to be MySQL compliant
sql/spatial.h:
  Made a lot of speed/space optimizations
  Changed class names to be MySQL compliant
  Indentation fixes
  Use bool instead of int as result type for functions that only return 0 or 1
sql/sql_string.cc:
  Simple optimizations
sql/sql_string.h:
  Simple cleanups
sql/structs.h:
  Added LEX_STRING_WITH_INIT (needed by spatial.cc)
This commit is contained in:
unknown
2004-03-04 08:50:37 +02:00
parent f96960f9e1
commit afa6728a9f
17 changed files with 1672 additions and 1607 deletions
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70
sql/field.cc
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@ -4715,18 +4715,26 @@ void Field_blob::get_key_image(char *buff,uint length,
#ifdef HAVE_SPATIAL
if (type == itMBR)
{
if (!blob_length)
return;
get_ptr(&blob);
const char *dummy;
MBR mbr;
Geometry gobj;
if (blob_length < SRID_SIZE)
{
bzero(buff, SIZEOF_STORED_DOUBLE*4);
return;
}
get_ptr(&blob);
gobj.create_from_wkb(blob + SRID_SIZE, blob_length - SRID_SIZE);
gobj.get_mbr(&mbr);
float8store(buff, mbr.xmin);
float8store(buff+8, mbr.xmax);
float8store(buff+16, mbr.ymin);
float8store(buff+24, mbr.ymax);
if (gobj.get_mbr(&mbr, &dummy))
bzero(buff, SIZEOF_STORED_DOUBLE*4);
else
{
float8store(buff, mbr.xmin);
float8store(buff+8, mbr.xmax);
float8store(buff+16, mbr.ymin);
float8store(buff+24, mbr.ymax);
}
return;
}
#endif /*HAVE_SPATIAL*/
@ -4939,6 +4947,7 @@ uint Field_blob::max_packed_col_length(uint max_length)
return (max_length > 255 ? 2 : 1)+max_length;
}
#ifdef HAVE_SPATIAL
void Field_geom::get_key_image(char *buff, uint length, CHARSET_INFO *cs,
@ -4947,17 +4956,26 @@ void Field_geom::get_key_image(char *buff, uint length, CHARSET_INFO *cs,
length-= HA_KEY_BLOB_LENGTH;
ulong blob_length= get_length(ptr);
char *blob;
get_ptr(&blob);
const char *dummy;
MBR mbr;
if (blob_length < SRID_SIZE)
{
bzero(buff, SIZEOF_STORED_DOUBLE*4);
return;
}
get_ptr(&blob);
Geometry gobj;
gobj.create_from_wkb(blob + SRID_SIZE, blob_length - SRID_SIZE);
gobj.get_mbr(&mbr);
float8store(buff, mbr.xmin);
float8store(buff + 8, mbr.xmax);
float8store(buff + 16, mbr.ymin);
float8store(buff + 24, mbr.ymax);
return;
if (gobj.get_mbr(&mbr, &dummy))
bzero(buff, SIZEOF_STORED_DOUBLE*4);
else
{
float8store(buff, mbr.xmin);
float8store(buff + 8, mbr.xmax);
float8store(buff + 16, mbr.ymin);
float8store(buff + 24, mbr.ymax);
}
}
@ -5001,16 +5019,16 @@ void Field_geom::sql_type(String &res) const
int Field_geom::store(const char *from, uint length, CHARSET_INFO *cs)
{
if (!length)
{
bzero(ptr, Field_blob::pack_length());
}
else
{
// Should check given WKB
if (length < 4 + 1 + 4 + 8 + 8) // SRID + WKB_HEADER + X + Y
return 1;
uint32 wkb_type= uint4korr(from + 5);
if (wkb_type < 1 || wkb_type > 7)
// Check given WKB
uint32 wkb_type;
if (length < SRID_SIZE + WKB_HEADER_SIZE + SIZEOF_STORED_DOUBLE*2)
goto err;
wkb_type= uint4korr(from + WKB_HEADER_SIZE);
if (wkb_type < (uint32) Geometry::wkbPoint ||
wkb_type > (uint32) Geometry::wkb_end)
return 1;
Field_blob::store_length(length);
if (table->copy_blobs || length <= MAX_FIELD_WIDTH)
@ -5021,6 +5039,10 @@ int Field_geom::store(const char *from, uint length, CHARSET_INFO *cs)
bmove(ptr + packlength, (char*) &from, sizeof(char*));
}
return 0;
err:
bzero(ptr, Field_blob::pack_length());
return 1;
}
#endif /*HAVE_SPATIAL*/