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Added GIS extension

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This commit is contained in:
bar@gw.udmsearch.izhnet.ru
2002-02-22 15:24:42 +04:00
parent fc74d81b3f
commit 735b27d578
31 changed files with 3674 additions and 48 deletions
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57
sql/sql_table.cc
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@ -438,8 +438,21 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
uint key_length=0;
key_part_spec *column;
key_info->flags= (key->type == Key::MULTIPLE) ? 0 :
(key->type == Key::FULLTEXT) ? HA_FULLTEXT : HA_NOSAME;
switch(key->type){
case Key::MULTIPLE:
key_info->flags = 0;
break;
case Key::FULLTEXT:
key_info->flags = HA_FULLTEXT;
break;
case Key::SPATIAL:
key_info->flags = HA_SPATIAL;
break;
default:
key_info->flags = HA_NOSAME;
}
key_info->key_alg = key->alg;
key_info->key_parts=(uint8) key->columns.elements;
key_info->key_part=key_part_info;
key_info->usable_key_parts= key_number;
@ -452,7 +465,31 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
DBUG_RETURN(-1);
}
}
/*
Make SPATIAL to be RTREE by default
SPATIAL only on BLOB or at least BINARY, this
actually should be replaced by special GEOM type
in near future when new frm file is ready
checking for proper key parts number:
*/
if(key_info->flags == HA_SPATIAL){
if(key_info->key_parts!=1){
my_printf_error(ER_WRONG_ARGUMENTS,
ER(ER_WRONG_ARGUMENTS),MYF(0),"SPATIAL INDEX");
DBUG_RETURN(-1);
}
}else
{
if(key_info->key_alg == HA_KEY_ALG_RTREE){
if((key_info->key_parts&1)==1){
my_printf_error(ER_WRONG_ARGUMENTS,
ER(ER_WRONG_ARGUMENTS),MYF(0),"RTREE INDEX");
DBUG_RETURN(-1);
}
}
}
List_iterator<key_part_spec> cols(key->columns);
for (uint column_nr=0 ; (column=cols++) ; column_nr++)
{
@ -480,6 +517,14 @@ int mysql_create_table(THD *thd,const char *db, const char *table_name,
{
if (key->type == Key::FULLTEXT)
column->length=1; /* ft-code ignores it anyway :-) */
else if (key->type == Key::SPATIAL)
{
/*
BAR: 4 is: (Xmin,Xmax,Ymin,Ymax), this is for 2D case
Lately we'll extend this code to support more dimensions
*/
column->length=4*sizeof(double);
}
else
{
my_printf_error(ER_BLOB_KEY_WITHOUT_LENGTH,
@ -1471,11 +1516,13 @@ int mysql_alter_table(THD *thd,char *new_db, char *new_name,
key_part_length));
}
if (key_parts.elements)
key_list.push_back(new Key(key_info->flags & HA_NOSAME ?
key_list.push_back(new Key(key_info->flags & HA_SPATIAL ? Key::SPATIAL :
(key_info->flags & HA_NOSAME ?
(!my_strcasecmp(key_name, "PRIMARY") ?
Key::PRIMARY : Key::UNIQUE) :
(key_info->flags & HA_FULLTEXT ?
Key::FULLTEXT : Key::MULTIPLE),
Key::FULLTEXT : Key::MULTIPLE)),
key_info->key_alg,
key_name,key_parts));
}
key_it.rewind();