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  • Committer: patrick crews
  • Date: 2010-09-29 15:15:19 UTC
  • mfrom: (1099.4.188 drizzle)
  • Revision ID: gleebix@gmail.com-20100929151519-6mrmzd1ciw2p9nws
Tags: 2010.09.1802
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drizzled/key.cc
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */
 
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   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
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/* Functions to handle keys and fields in forms */
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#include "drizzled/table.h"
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#include "drizzled/key.h"
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#include "drizzled/field/blob.h"
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#include "drizzled/util/test.h"
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#include "drizzled/plugin/storage_engine.h"
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#include <boost/dynamic_bitset.hpp>
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#include <string>
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     idx        Key number
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*/
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void key_unpack(String *to, const Table *table, uint32_t idx)
 
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void key_unpack(String *to, Table *table, uint32_t idx)
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{
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  KeyPartInfo *key_part,*key_part_end;
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  Field *field;
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    {
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      const CHARSET_INFO * const cs= field->charset();
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      field->setReadSet();
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      field->val_str_internal(&tmp);
 
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      field->val_str(&tmp);
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      if (cs->mbmaxlen > 1 &&
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          table->getField(key_part->fieldnr - 1)->field_length !=
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          key_part->length)
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      }
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      if (key_part->length < field->pack_length())
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        tmp.length(min(tmp.length(), static_cast<size_t>(key_part->length)));
 
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        tmp.length(min(tmp.length(),(uint32_t)key_part->length));
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      to->append(tmp);
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    }
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    else
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    FALSE  Otherwise
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*/
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bool is_key_used(Table *table, uint32_t idx, const boost::dynamic_bitset<>& fields)
 
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bool is_key_used(Table *table, uint32_t idx, const MyBitmap *fields)
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{
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  table->tmp_set.reset();
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  table->mark_columns_used_by_index_no_reset(idx, table->tmp_set);
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  if (table->tmp_set.is_subset_of(fields))
 
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  table->tmp_set.clearAll();
 
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  table->mark_columns_used_by_index_no_reset(idx, &table->tmp_set);
 
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  if (bitmap_is_overlapping(&table->tmp_set, fields))
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    return 1;
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  /*