// NewIndex builds a new Index object.
func NewIndex(tableInfo *model.TableInfo, indexInfo *model.IndexInfo) table.Index {
index := &index{
tblInfo: tableInfo,
idxInfo: indexInfo,
prefix: kv.Key(tablecodec.EncodeTableIndexPrefix(tableInfo.ID, indexInfo.ID)),
}
return index
}
func (d *ddl) dropTableIndex(t table.Table, indexInfo *model.IndexInfo) error {
prefix := tablecodec.EncodeTableIndexPrefix(t.Meta().ID, indexInfo.ID)
err := d.delKeysWithPrefix(prefix)
return errors.Trace(err)
}