Golang Index.Create方法代碼示例

本文整理匯總了Golang中github.com/pingcap/tidb/table.Index.Create方法的典型用法代碼示例。如果您正苦於以下問題：Golang Index.Create方法的具體用法？Golang Index.Create怎麽用？Golang Index.Create使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/pingcap/tidb/table.Index的用法示例。

在下文中一共展示了Index.Create方法的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: backfillIndexInTxn

// backfillIndexInTxn deals with a part of backfilling index data in a Transaction.
// This part of the index data rows is defaultSmallBatchCnt.
func (d *ddl) backfillIndexInTxn(t table.Table, kvIdx table.Index, handles []int64, txn kv.Transaction) (int64, error) {
	idxRecords, err := d.fetchRowColVals(txn, t, handles, kvIdx.Meta())
	if err != nil {
		return 0, errors.Trace(err)
	}

	for _, idxRecord := range idxRecords {
		log.Debug("[ddl] backfill index...", idxRecord.handle)
		err = txn.LockKeys(idxRecord.key)
		if err != nil {
			return 0, errors.Trace(err)
		}

		// Create the index.
		handle, err := kvIdx.Create(txn, idxRecord.vals, idxRecord.handle)
		if err != nil {
			if terror.ErrorEqual(err, kv.ErrKeyExists) && idxRecord.handle == handle {
				// Index already exists, skip it.
				continue
			}
			return 0, errors.Trace(err)
		}
	}
	return idxRecords[len(idxRecords)-1].handle, nil
}

開發者ID:pingcap，項目名稱:tidb，代碼行數:27，代碼來源:index.go

示例2: buildIndexForRow

// BuildIndexForRow implements table.Table BuildIndexForRow interface.
func (t *Table) buildIndexForRow(rm kv.RetrieverMutator, h int64, vals []types.Datum, idx table.Index) error {
	if idx.Meta().State == model.StateDeleteOnly || idx.Meta().State == model.StateDeleteReorganization {
		// If the index is in delete only or write reorganization state, we can not add index.
		return nil
	}

	if _, err := idx.Create(rm, vals, h); err != nil {
		return errors.Trace(err)
	}
	return nil
}

開發者ID:pingcap，項目名稱:tidb，代碼行數:12，代碼來源:tables.go

示例3: testIndex

func (s *testSuite) testIndex(c *C, tb table.Table, idx table.Index) {
	txn, err := s.store.Begin()
	c.Assert(err, IsNil)

	err = CompareIndexData(txn, tb, idx)
	c.Assert(err, IsNil)

	cnt, err := GetIndexRecordsCount(txn, idx, nil)
	c.Assert(err, IsNil)
	c.Assert(cnt, Equals, int64(2))

	// current index data:
	// index     data (handle, data): (1, 10), (2, 20), (3, 30)
	// index col data (handle, data): (1, 10), (2, 20), (4, 40)
	err = idx.Create(txn, types.MakeDatums(int64(30)), 3)
	c.Assert(err, IsNil)
	col := tb.Cols()[idx.Meta().Columns[0].Offset]
	key := tb.RecordKey(4, col)
	err = tables.SetColValue(txn, key, types.NewDatum(int64(40)))
	c.Assert(err, IsNil)
	err = txn.Commit()
	c.Assert(err, IsNil)

	txn, err = s.store.Begin()
	c.Assert(err, IsNil)
	err = CompareIndexData(txn, tb, idx)
	c.Assert(err, NotNil)
	record1 := &RecordData{Handle: int64(3), Values: types.MakeDatums(int64(30))}
	diffMsg := newDiffRetError("index", record1, &RecordData{Handle: int64(3), Values: types.MakeDatums(nil)})
	c.Assert(err.Error(), DeepEquals, diffMsg)

	// current index data:
	// index     data (handle, data): (1, 10), (2, 20), (3, 30), (4, 40)
	// index col data (handle, data): (1, 10), (2, 20), (4, 40), (3, 31)
	err = idx.Create(txn, types.MakeDatums(int64(40)), 4)
	c.Assert(err, IsNil)
	key = tb.RecordKey(3, col)
	err = tables.SetColValue(txn, key, types.NewDatum(int64(31)))
	c.Assert(err, IsNil)
	err = txn.Commit()
	c.Assert(err, IsNil)

	txn, err = s.store.Begin()
	c.Assert(err, IsNil)
	err = CompareIndexData(txn, tb, idx)
	c.Assert(err, NotNil)
	record2 := &RecordData{Handle: int64(3), Values: types.MakeDatums(int64(31))}
	diffMsg = newDiffRetError("index", record1, record2)
	c.Assert(err.Error(), DeepEquals, diffMsg)

	// current index data:
	// index     data (handle, data): (1, 10), (2, 20), (3, 30), (4, 40)
	// index col data (handle, data): (1, 10), (2, 20), (4, 40), (5, 30)
	key = tb.RecordKey(3, col)
	txn.Delete(key)
	key = tb.RecordKey(5, col)
	err = tables.SetColValue(txn, key, types.NewDatum(int64(30)))
	c.Assert(err, IsNil)
	err = txn.Commit()
	c.Assert(err, IsNil)

	txn, err = s.store.Begin()
	c.Assert(err, IsNil)
	err = checkRecordAndIndex(txn, tb, idx)
	c.Assert(err, NotNil)
	record2 = &RecordData{Handle: int64(5), Values: types.MakeDatums(int64(30))}
	diffMsg = newDiffRetError("index", record1, record2)
	c.Assert(err.Error(), DeepEquals, diffMsg)

	// current index data:
	// index     data (handle, data): (1, 10), (2, 20), (3, 30), (4, 40)
	// index col data (handle, data): (1, 10), (2, 20), (3, 30)
	key = tb.RecordKey(4, col)
	txn.Delete(key)
	key = tb.RecordKey(3, col)
	err = tables.SetColValue(txn, key, types.NewDatum(int64(30)))
	c.Assert(err, IsNil)
	err = txn.Commit()
	c.Assert(err, IsNil)

	txn, err = s.store.Begin()
	c.Assert(err, IsNil)
	err = CompareIndexData(txn, tb, idx)
	c.Assert(err, NotNil)
	record1 = &RecordData{Handle: int64(4), Values: types.MakeDatums(int64(40))}
	diffMsg = newDiffRetError("index", record1, &RecordData{Handle: int64(4), Values: types.MakeDatums(nil)})
	c.Assert(err.Error(), DeepEquals, diffMsg)

	// current index data:
	// index     data (handle, data): (1, 10), (2, 20), (3, 30)
	// index col data (handle, data): (1, 10), (2, 20), (3, 30), (4, 40)
	err = idx.Delete(txn, types.MakeDatums(int64(40)), 4)
	c.Assert(err, IsNil)
	key = tb.RecordKey(4, col)
	err = tables.SetColValue(txn, key, types.NewDatum(int64(40)))
	c.Assert(err, IsNil)
	err = txn.Commit()
	c.Assert(err, IsNil)

	txn, err = s.store.Begin()
//.........這裏部分代碼省略.........

開發者ID:tangfeixiong，項目名稱:tidb，代碼行數:101，代碼來源:inspectkv_test.go

示例4: testIndex

func (s *testSuite) testIndex(c *C, tb table.Table, idx table.Index) {
	txn, err := s.store.Begin()
	c.Assert(err, IsNil)

	err = CompareIndexData(txn, tb, idx)
	c.Assert(err, IsNil)

	cnt, err := GetIndexRecordsCount(txn, idx, nil)
	c.Assert(err, IsNil)
	c.Assert(cnt, Equals, int64(2))

	// set data to:
	// index     data (handle, data): (1, 10), (2, 20), (3, 30)
	// table     data (handle, data): (1, 10), (2, 20), (4, 40)
	err = idx.Create(txn, types.MakeDatums(int64(30)), 3)
	c.Assert(err, IsNil)
	key := tablecodec.EncodeRowKey(tb.Meta().ID, codec.EncodeInt(nil, 4))
	setColValue(c, txn, key, types.NewDatum(int64(40)))
	err = txn.Commit()
	c.Assert(err, IsNil)

	txn, err = s.store.Begin()
	c.Assert(err, IsNil)
	err = CompareIndexData(txn, tb, idx)
	c.Assert(err, NotNil)
	record1 := &RecordData{Handle: int64(3), Values: types.MakeDatums(int64(30))}
	diffMsg := newDiffRetError("index", record1, nil)
	c.Assert(err.Error(), DeepEquals, diffMsg)

	// set data to:
	// index     data (handle, data): (1, 10), (2, 20), (3, 30), (4, 40)
	// table     data (handle, data): (1, 10), (2, 20), (4, 40), (3, 31)
	err = idx.Create(txn, types.MakeDatums(int64(40)), 4)
	c.Assert(err, IsNil)
	key = tablecodec.EncodeRowKey(tb.Meta().ID, codec.EncodeInt(nil, 3))
	setColValue(c, txn, key, types.NewDatum(int64(31)))
	err = txn.Commit()
	c.Assert(err, IsNil)

	txn, err = s.store.Begin()
	c.Assert(err, IsNil)
	err = CompareIndexData(txn, tb, idx)
	c.Assert(err, NotNil)
	record2 := &RecordData{Handle: int64(3), Values: types.MakeDatums(int64(31))}
	diffMsg = newDiffRetError("index", record1, record2)
	c.Assert(err.Error(), DeepEquals, diffMsg)

	// set data to:
	// index     data (handle, data): (1, 10), (2, 20), (3, 30), (4, 40)
	// table     data (handle, data): (1, 10), (2, 20), (4, 40), (5, 30)
	key = tablecodec.EncodeRowKey(tb.Meta().ID, codec.EncodeInt(nil, 3))
	txn.Delete(key)
	key = tablecodec.EncodeRowKey(tb.Meta().ID, codec.EncodeInt(nil, 5))
	setColValue(c, txn, key, types.NewDatum(int64(30)))
	err = txn.Commit()
	c.Assert(err, IsNil)

	txn, err = s.store.Begin()
	c.Assert(err, IsNil)
	err = checkRecordAndIndex(txn, tb, idx)
	c.Assert(err, NotNil)
	record2 = &RecordData{Handle: int64(5), Values: types.MakeDatums(int64(30))}
	diffMsg = newDiffRetError("index", record1, record2)
	c.Assert(err.Error(), DeepEquals, diffMsg)

	// set data to:
	// index     data (handle, data): (1, 10), (2, 20), (3, 30), (4, 40)
	// table     data (handle, data): (1, 10), (2, 20), (3, 30)
	key = tablecodec.EncodeRowKey(tb.Meta().ID, codec.EncodeInt(nil, 4))
	txn.Delete(key)
	key = tablecodec.EncodeRowKey(tb.Meta().ID, codec.EncodeInt(nil, 3))
	setColValue(c, txn, key, types.NewDatum(int64(30)))
	err = txn.Commit()
	c.Assert(err, IsNil)

	txn, err = s.store.Begin()
	c.Assert(err, IsNil)
	err = CompareIndexData(txn, tb, idx)
	c.Assert(err, NotNil)
	record1 = &RecordData{Handle: int64(4), Values: types.MakeDatums(int64(40))}
	diffMsg = newDiffRetError("index", record1, nil)
	c.Assert(err.Error(), DeepEquals, diffMsg)

	// set data to:
	// index     data (handle, data): (1, 10), (2, 20), (3, 30)
	// table     data (handle, data): (1, 10), (2, 20), (3, 30), (4, 40)
	err = idx.Delete(txn, types.MakeDatums(int64(40)), 4)
	c.Assert(err, IsNil)
	key = tablecodec.EncodeRowKey(tb.Meta().ID, codec.EncodeInt(nil, 4))
	setColValue(c, txn, key, types.NewDatum(int64(40)))
	err = txn.Commit()
	c.Assert(err, IsNil)

	txn, err = s.store.Begin()
	c.Assert(err, IsNil)
	err = CompareIndexData(txn, tb, idx)
	c.Assert(err, NotNil)
	diffMsg = newDiffRetError("index", nil, record1)
	c.Assert(err.Error(), DeepEquals, diffMsg)
}

開發者ID:duzhanyuan，項目名稱:tidb，代碼行數:100，代碼來源:inspectkv_test.go

注：本文中的github.com/pingcap/tidb/table.Index.Create方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。