Golang autoid.NewAllocator函数代码示例

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本文整理汇总了Golang中github.com/pingcap/tidb/meta/autoid.NewAllocator函数的典型用法代码示例。如果您正苦于以下问题：Golang NewAllocator函数的具体用法？Golang NewAllocator怎么用？Golang NewAllocator使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了NewAllocator函数的19个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: TestT

func (*testSuite) TestT(c *C) {
	driver := localstore.Driver{Driver: goleveldb.MemoryDriver{}}
	store, err := driver.Open("memory")
	c.Assert(err, IsNil)
	defer store.Close()

	m := meta.NewMeta(store)
	err = m.RunInNewTxn(false, func(m *meta.TMeta) error {
		err = m.CreateDatabase(&model.DBInfo{ID: 1, Name: model.NewCIStr("a")})
		c.Assert(err, IsNil)
		err = m.CreateTable(1, &model.TableInfo{ID: 1, Name: model.NewCIStr("t")})
		c.Assert(err, IsNil)
		return nil
	})
	c.Assert(err, IsNil)

	alloc := autoid.NewAllocator(m, 1)
	c.Assert(alloc, NotNil)

	id, err := alloc.Alloc(1)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(1))
	id, err = alloc.Alloc(1)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(2))
	id, err = alloc.Alloc(0)
	c.Assert(err, NotNil)
}

开发者ID:stumaxim28，项目名称:tidb，代码行数:28，代码来源:autoid_test.go

示例2: applyCreateTable

func (b *Builder) applyCreateTable(m *meta.Meta, roDBInfo *model.DBInfo, tableID int64, alloc autoid.Allocator) error {
	tblInfo, err := m.GetTable(roDBInfo.ID, tableID)
	if err != nil {
		return errors.Trace(err)
	}
	if tblInfo == nil {
		// When we apply an old schema diff, the table may has been dropped already, so we need to fall back to
		// full load.
		return ErrTableNotExists
	}
	if alloc == nil {
		alloc = autoid.NewAllocator(b.handle.store, roDBInfo.ID)
	}
	tbl, err := tables.TableFromMeta(alloc, tblInfo)
	if err != nil {
		return errors.Trace(err)
	}
	tableNames := b.is.schemaMap[roDBInfo.Name.L]
	tableNames.tables[tblInfo.Name.L] = tbl
	bucketIdx := tableBucketIdx(tableID)
	sortedTables := b.is.sortedTablesBuckets[bucketIdx]
	sortedTables = append(sortedTables, tbl)
	sort.Sort(sortedTables)
	b.is.sortedTablesBuckets[bucketIdx] = sortedTables
	return nil
}

开发者ID:pingcap，项目名称:tidb，代码行数:26，代码来源:builder.go

示例3: Set

// Set sets DBInfo to information schema.
func (h *Handle) Set(newInfo []*model.DBInfo) {
	info := &infoSchema{
		schemaNameToID: map[string]int64{},
		tableNameToID:  map[tableName]int64{},
		columnNameToID: map[columnName]int64{},
		schemas:        map[int64]*model.DBInfo{},
		tables:         map[int64]table.Table{},
		columns:        map[int64]*model.ColumnInfo{},
		indices:        map[indexName]*model.IndexInfo{},
		columnIndices:  map[int64][]*model.IndexInfo{},
	}
	for _, di := range newInfo {
		info.schemas[di.ID] = di
		info.schemaNameToID[di.Name.L] = di.ID
		for _, t := range di.Tables {
			alloc := autoid.NewAllocator(h.store)
			info.tables[t.ID] = table.TableFromMeta(di.Name.L, alloc, t)
			tname := tableName{di.Name.L, t.Name.L}
			info.tableNameToID[tname] = t.ID
			for _, c := range t.Columns {
				info.columns[c.ID] = c
				info.columnNameToID[columnName{tname, c.Name.L}] = c.ID
			}
			for _, idx := range t.Indices {
				info.indices[indexName{tname, idx.Name.L}] = idx
				for _, idxCol := range idx.Columns {
					columnID := t.Columns[idxCol.Offset].ID
					columnIndices := info.columnIndices[columnID]
					info.columnIndices[columnID] = append(columnIndices, idx)
				}
			}
		}
	}
	h.value.Store(info)
}

开发者ID:ninefive，项目名称:tidb，代码行数:36，代码来源:infoschema.go

示例4: dropSchemaData

func (d *ddl) dropSchemaData(dbInfo *model.DBInfo, tables []*model.TableInfo) error {
	for _, tblInfo := range tables {
		alloc := autoid.NewAllocator(d.store, dbInfo.ID)
		t := table.TableFromMeta(alloc, tblInfo)
		err := d.dropTableData(t)
		if err != nil {
			return errors.Trace(err)
		}
	}
	return nil
}

开发者ID:yzl11，项目名称:vessel，代码行数:11，代码来源:schema.go

示例5: testGetTable

func testGetTable(c *C, d *ddl, schemaID int64, tableID int64) table.Table {
	var tblInfo *model.TableInfo
	kv.RunInNewTxn(d.store, false, func(txn kv.Transaction) error {
		t := meta.NewMeta(txn)
		var err error
		tblInfo, err = t.GetTable(schemaID, tableID)
		c.Assert(err, IsNil)
		c.Assert(tblInfo, NotNil)
		return nil
	})
	alloc := autoid.NewAllocator(d.store, schemaID)
	tbl := table.TableFromMeta(alloc, tblInfo)
	return tbl
}

开发者ID:yzl11，项目名称:vessel，代码行数:14，代码来源:table_test.go

示例6: handleAutoIncID

// If create table with auto_increment option, we should rebase tableAutoIncID value.
func (d *ddl) handleAutoIncID(tbInfo *model.TableInfo, schemaID int64) error {
	alloc := autoid.NewAllocator(d.store, schemaID)
	tbInfo.State = model.StatePublic
	tb, err := table.TableFromMeta(alloc, tbInfo)
	if err != nil {
		return errors.Trace(err)
	}
	// The operation of the minus 1 to make sure that the current value doesn't be used,
	// the next Alloc operation will get this value.
	// Its behavior is consistent with MySQL.
	if err = tb.RebaseAutoID(tbInfo.AutoIncID-1, false); err != nil {
		return errors.Trace(err)
	}
	return nil
}

开发者ID:pingcap，项目名称:tidb，代码行数:16，代码来源:ddl.go

示例7: TestT

func (*testSuite) TestT(c *C) {
	driver := localstore.Driver{Driver: goleveldb.MemoryDriver{}}
	store, err := driver.Open("memory")
	c.Assert(err, IsNil)
	defer store.Close()

	alloc := autoid.NewAllocator(store)
	c.Assert(alloc, NotNil)

	id, err := alloc.Alloc(1)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(1))
	id, err = alloc.Alloc(1)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(2))
	id, err = alloc.Alloc(0)
	c.Assert(err, NotNil)
}

开发者ID:ninefive，项目名称:tidb，代码行数:18，代码来源:autoid_test.go

示例8: createSchemaTablesForDB

func (b *Builder) createSchemaTablesForDB(di *model.DBInfo) error {
	schTbls := &schemaTables{
		dbInfo: di,
		tables: make(map[string]table.Table, len(di.Tables)),
	}
	b.is.schemaMap[di.Name.L] = schTbls
	for _, t := range di.Tables {
		alloc := autoid.NewAllocator(b.handle.store, di.ID)
		var tbl table.Table
		tbl, err := tables.TableFromMeta(alloc, t)
		if err != nil {
			return errors.Trace(err)
		}
		schTbls.tables[t.Name.L] = tbl
		sortedTables := b.is.sortedTablesBuckets[tableBucketIdx(t.ID)]
		b.is.sortedTablesBuckets[tableBucketIdx(t.ID)] = append(sortedTables, tbl)
	}
	return nil
}

开发者ID:pingcap，项目名称:tidb，代码行数:19，代码来源:builder.go

示例9: handleTableOptions

func (d *ddl) handleTableOptions(options []*ast.TableOption, tbInfo *model.TableInfo, schemaID int64) error {
	for _, op := range options {
		if op.Tp == ast.TableOptionAutoIncrement {
			alloc := autoid.NewAllocator(d.store, schemaID)
			tbInfo.State = model.StatePublic
			tb, err := table.TableFromMeta(alloc, tbInfo)
			if err != nil {
				return errors.Trace(err)
			}
			// The operation of the minus 1 to make sure that the current value doesn't be used,
			// the next Alloc operation will get this value.
			// Its behavior is consistent with MySQL.
			if err = tb.RebaseAutoID(int64(op.UintValue-1), false); err != nil {
				return errors.Trace(err)
			}
		}
	}

	return nil
}

开发者ID:astaxie，项目名称:tidb，代码行数:20，代码来源:ddl.go

示例10: Set

// Set sets DBInfo to information schema.
func (h *Handle) Set(newInfo []*model.DBInfo, schemaMetaVersion int64) error {
	info := &infoSchema{
		schemaNameToID:    map[string]int64{},
		tableNameToID:     map[tableName]int64{},
		columnNameToID:    map[columnName]int64{},
		schemas:           map[int64]*model.DBInfo{},
		tables:            map[int64]table.Table{},
		columns:           map[int64]*model.ColumnInfo{},
		indices:           map[indexName]*model.IndexInfo{},
		columnIndices:     map[int64][]*model.IndexInfo{},
		schemaMetaVersion: schemaMetaVersion,
	}
	var err error
	for _, di := range newInfo {
		info.schemas[di.ID] = di
		info.schemaNameToID[di.Name.L] = di.ID
		for _, t := range di.Tables {
			alloc := autoid.NewAllocator(h.store, di.ID)
			info.tables[t.ID], err = table.TableFromMeta(alloc, t)
			if err != nil {
				return errors.Trace(err)
			}
			tname := tableName{di.Name.L, t.Name.L}
			info.tableNameToID[tname] = t.ID
			for _, c := range t.Columns {
				info.columns[c.ID] = c
				info.columnNameToID[columnName{tname, c.Name.L}] = c.ID
			}
			for _, idx := range t.Indices {
				info.indices[indexName{tname, idx.Name.L}] = idx
				for _, idxCol := range idx.Columns {
					columnID := t.Columns[idxCol.Offset].ID
					columnIndices := info.columnIndices[columnID]
					info.columnIndices[columnID] = append(columnIndices, idx)
				}
			}
		}
	}
	h.value.Store(info)
	return nil
}

开发者ID:lovedboy，项目名称:tidb，代码行数:42，代码来源:infoschema.go

示例11: getCurrentTable

func getCurrentTable(d *ddl, schemaID, tableID int64) (table.Table, error) {
	var tblInfo *model.TableInfo
	err := kv.RunInNewTxn(d.store, false, func(txn kv.Transaction) error {
		t := meta.NewMeta(txn)
		var err error
		tblInfo, err = t.GetTable(schemaID, tableID)
		if err != nil {
			return errors.Trace(err)
		}
		return nil
	})
	if err != nil {
		return nil, errors.Trace(err)
	}
	alloc := autoid.NewAllocator(d.store, schemaID)
	tbl, err := table.TableFromMeta(alloc, tblInfo)
	if err != nil {
		return nil, errors.Trace(err)
	}
	return tbl, err
}

开发者ID:XuHuaiyu，项目名称:tidb，代码行数:21，代码来源:column_change_test.go

示例12: applyCreateTable

func (b *Builder) applyCreateTable(m *meta.Meta, roDBInfo *model.DBInfo, tableID int64, alloc autoid.Allocator) error {
	tblInfo, err := m.GetTable(roDBInfo.ID, tableID)
	if err != nil {
		return errors.Trace(err)
	}
	if tblInfo == nil {
		// When we apply an old schema diff, the table may has been dropped already, so we need to fall back to
		// full load.
		return ErrTableNotExists
	}
	if alloc == nil {
		alloc = autoid.NewAllocator(b.handle.store, roDBInfo.ID)
	}
	tbl, err := tables.TableFromMeta(alloc, tblInfo)
	if err != nil {
		return errors.Trace(err)
	}
	b.is.tables[tblInfo.ID] = tbl
	tn := makeTableName(roDBInfo.Name.L, tblInfo.Name.L)
	b.is.tableNameToID[string(tn)] = tblInfo.ID
	return nil
}

开发者ID:jmptrader，项目名称:tidb，代码行数:22，代码来源:builder.go

示例13: InitWithDBInfos

// InitWithDBInfos initializes an empty new InfoSchema with a slice of DBInfo and schema version.
func (b *Builder) InitWithDBInfos(dbInfos []*model.DBInfo, schemaVersion int64) (*Builder, error) {
	err := b.initMemorySchemas()
	if err != nil {
		return nil, errors.Trace(err)
	}
	info := b.is
	info.schemaMetaVersion = schemaVersion
	for _, di := range dbInfos {
		info.schemas[di.ID] = di
		info.schemaNameToID[di.Name.L] = di.ID
		for _, t := range di.Tables {
			alloc := autoid.NewAllocator(b.handle.store, di.ID)
			var tbl table.Table
			tbl, err = table.TableFromMeta(alloc, t)
			if err != nil {
				return nil, errors.Trace(err)
			}
			info.tables[t.ID] = tbl
			tname := makeTableName(di.Name.L, t.Name.L)
			info.tableNameToID[string(tname)] = t.ID
		}
	}
	return b, nil
}

开发者ID:jmptrader，项目名称:tidb，代码行数:25，代码来源:builder.go

示例14: TestScan

func (s *testSuite) TestScan(c *C) {
	defer testleak.AfterTest(c)()
	alloc := autoid.NewAllocator(s.store, s.dbInfo.ID)
	tb, err := tables.TableFromMeta(alloc, s.tbInfo)
	c.Assert(err, IsNil)
	indices := tb.Indices()
	_, err = tb.AddRecord(s.ctx, types.MakeDatums(10, 11))
	c.Assert(err, IsNil)
	s.ctx.CommitTxn()

	record1 := &RecordData{Handle: int64(1), Values: types.MakeDatums(int64(10), int64(11))}
	record2 := &RecordData{Handle: int64(2), Values: types.MakeDatums(int64(20), int64(21))}
	ver, err := s.store.CurrentVersion()
	c.Assert(err, IsNil)
	records, _, err := ScanSnapshotTableRecord(s.store, ver, tb, int64(1), 1)
	c.Assert(err, IsNil)
	c.Assert(records, DeepEquals, []*RecordData{record1})

	_, err = tb.AddRecord(s.ctx, record2.Values)
	c.Assert(err, IsNil)
	s.ctx.CommitTxn()
	txn, err := s.store.Begin()
	c.Assert(err, IsNil)

	records, nextHandle, err := ScanTableRecord(txn, tb, int64(1), 1)
	c.Assert(err, IsNil)
	c.Assert(records, DeepEquals, []*RecordData{record1})
	records, nextHandle, err = ScanTableRecord(txn, tb, nextHandle, 1)
	c.Assert(err, IsNil)
	c.Assert(records, DeepEquals, []*RecordData{record2})
	startHandle := nextHandle
	records, nextHandle, err = ScanTableRecord(txn, tb, startHandle, 1)
	c.Assert(err, IsNil)
	c.Assert(records, IsNil)
	c.Assert(nextHandle, Equals, startHandle)

	idxRow1 := &RecordData{Handle: int64(1), Values: types.MakeDatums(int64(10))}
	idxRow2 := &RecordData{Handle: int64(2), Values: types.MakeDatums(int64(20))}
	kvIndex := tables.NewIndex(tb.Meta(), indices[0].Meta())
	idxRows, nextVals, err := ScanIndexData(txn, kvIndex, idxRow1.Values, 2)
	c.Assert(err, IsNil)
	c.Assert(idxRows, DeepEquals, []*RecordData{idxRow1, idxRow2})
	idxRows, nextVals, err = ScanIndexData(txn, kvIndex, idxRow1.Values, 1)
	c.Assert(err, IsNil)
	c.Assert(idxRows, DeepEquals, []*RecordData{idxRow1})
	idxRows, nextVals, err = ScanIndexData(txn, kvIndex, nextVals, 1)
	c.Assert(err, IsNil)
	c.Assert(idxRows, DeepEquals, []*RecordData{idxRow2})
	idxRows, nextVals, err = ScanIndexData(txn, kvIndex, nextVals, 1)
	c.Assert(idxRows, IsNil)
	c.Assert(nextVals, DeepEquals, types.MakeDatums(nil))
	c.Assert(err, IsNil)

	s.testTableData(c, tb, []*RecordData{record1, record2})

	s.testIndex(c, tb, tb.Indices()[0])

	err = tb.RemoveRecord(s.ctx, 1, record1.Values)
	c.Assert(err, IsNil)
	err = tb.RemoveRecord(s.ctx, 2, record2.Values)
	c.Assert(err, IsNil)
}

开发者ID:tangfeixiong，项目名称:tidb，代码行数:62，代码来源:inspectkv_test.go

示例15: TestScan

func (s *testSuite) TestScan(c *C) {
	alloc := autoid.NewAllocator(s.store, s.dbInfo.ID)
	tb, err := tables.TableFromMeta(alloc, s.tbInfo)
	c.Assert(err, IsNil)
	indices := tb.Indices()
	_, err = tb.AddRecord(s.ctx, []interface{}{10, 11})
	c.Assert(err, IsNil)
	s.ctx.FinishTxn(false)

	record1 := &RecordData{Handle: int64(1), Values: []interface{}{int64(10), int64(11)}}
	record2 := &RecordData{Handle: int64(2), Values: []interface{}{int64(20), int64(21)}}
	ver, err := s.store.CurrentVersion()
	c.Assert(err, IsNil)
	records, _, err := ScanSnapshotTableRecord(s.store, ver, tb, int64(1), 1)
	c.Assert(err, IsNil)
	c.Assert(records, DeepEquals, []*RecordData{record1})

	_, err = tb.AddRecord(s.ctx, record2.Values)
	c.Assert(err, IsNil)
	s.ctx.FinishTxn(false)
	txn, err := s.store.Begin()
	c.Assert(err, IsNil)

	records, nextHandle, err := ScanTableRecord(txn, tb, int64(1), 1)
	c.Assert(err, IsNil)
	c.Assert(records, DeepEquals, []*RecordData{record1})
	records, nextHandle, err = ScanTableRecord(txn, tb, nextHandle, 1)
	c.Assert(err, IsNil)
	c.Assert(records, DeepEquals, []*RecordData{record2})
	startHandle := nextHandle
	records, nextHandle, err = ScanTableRecord(txn, tb, startHandle, 1)
	c.Assert(err, IsNil)
	c.Assert(records, IsNil)
	c.Assert(nextHandle, Equals, startHandle)

	idxRow1 := &RecordData{Handle: int64(1), Values: []interface{}{int64(10)}}
	idxRow2 := &RecordData{Handle: int64(2), Values: []interface{}{int64(20)}}
	kvIndex := kv.NewKVIndex(tb.IndexPrefix(), indices[0].Name.L, indices[0].ID, indices[0].Unique)
	idxRows, nextVals, err := ScanIndexData(txn, kvIndex, idxRow1.Values, 2)
	c.Assert(err, IsNil)
	c.Assert(idxRows, DeepEquals, []*RecordData{idxRow1, idxRow2})
	idxRows, nextVals, err = ScanIndexData(txn, kvIndex, idxRow1.Values, 1)
	c.Assert(err, IsNil)
	c.Assert(idxRows, DeepEquals, []*RecordData{idxRow1})
	idxRows, nextVals, err = ScanIndexData(txn, kvIndex, nextVals, 1)
	c.Assert(err, IsNil)
	c.Assert(idxRows, DeepEquals, []*RecordData{idxRow2})
	idxRows, nextVals, err = ScanIndexData(txn, kvIndex, nextVals, 1)
	c.Assert(idxRows, IsNil)
	c.Assert(nextVals, DeepEquals, []interface{}{nil})
	c.Assert(err, IsNil)

	s.testTableData(c, tb, []*RecordData{record1, record2})

	s.testIndex(c, tb, tb.Indices()[0])

	err = tb.RemoveRecord(s.ctx, 1, record1.Values)
	c.Assert(err, IsNil)
	err = tb.RemoveRecord(s.ctx, 2, record2.Values)
	c.Assert(err, IsNil)
}

开发者ID:youprofit，项目名称:tidb，代码行数:61，代码来源:inspectkv_test.go

示例16: getTable

func (d *ddl) getTable(t *meta.Meta, schemaID int64, tblInfo *model.TableInfo) (table.Table, error) {
	alloc := autoid.NewAllocator(d.store, schemaID)
	tbl := table.TableFromMeta(alloc, tblInfo)
	return tbl, nil
}

开发者ID:henrylee2cn，项目名称:tidb，代码行数:5，代码来源:table.go

示例17: TestT

func (*testSuite) TestT(c *C) {
	driver := localstore.Driver{Driver: goleveldb.MemoryDriver{}}
	store, err := driver.Open("memory")
	c.Assert(err, IsNil)
	defer store.Close()

	err = kv.RunInNewTxn(store, false, func(txn kv.Transaction) error {
		m := meta.NewMeta(txn)
		err = m.CreateDatabase(&model.DBInfo{ID: 1, Name: model.NewCIStr("a")})
		c.Assert(err, IsNil)
		err = m.CreateTable(1, &model.TableInfo{ID: 1, Name: model.NewCIStr("t")})
		c.Assert(err, IsNil)
		err = m.CreateTable(1, &model.TableInfo{ID: 2, Name: model.NewCIStr("t1")})
		c.Assert(err, IsNil)
		err = m.CreateTable(1, &model.TableInfo{ID: 3, Name: model.NewCIStr("t1")})
		c.Assert(err, IsNil)
		return nil
	})
	c.Assert(err, IsNil)

	alloc := autoid.NewAllocator(store, 1)
	c.Assert(alloc, NotNil)

	id, err := alloc.Alloc(1)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(1))
	id, err = alloc.Alloc(1)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(2))
	id, err = alloc.Alloc(0)
	c.Assert(err, NotNil)

	// rebase
	err = alloc.Rebase(1, int64(1), true)
	c.Assert(err, IsNil)
	id, err = alloc.Alloc(1)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(3))
	err = alloc.Rebase(1, int64(3), true)
	c.Assert(err, IsNil)
	id, err = alloc.Alloc(1)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(4))
	err = alloc.Rebase(1, int64(10), true)
	c.Assert(err, IsNil)
	id, err = alloc.Alloc(1)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(11))
	err = alloc.Rebase(1, int64(3010), true)
	c.Assert(err, IsNil)
	id, err = alloc.Alloc(1)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(3011))

	alloc = autoid.NewAllocator(store, 1)
	c.Assert(alloc, NotNil)
	id, err = alloc.Alloc(1)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(autoid.GetStep()+1))

	alloc = autoid.NewAllocator(store, 1)
	c.Assert(alloc, NotNil)
	err = alloc.Rebase(2, int64(1), false)
	c.Assert(err, IsNil)
	id, err = alloc.Alloc(2)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(2))

	alloc = autoid.NewAllocator(store, 1)
	c.Assert(alloc, NotNil)
	err = alloc.Rebase(3, int64(3210), false)
	c.Assert(err, IsNil)
	alloc = autoid.NewAllocator(store, 1)
	c.Assert(alloc, NotNil)
	err = alloc.Rebase(3, int64(3000), false)
	c.Assert(err, IsNil)
	id, err = alloc.Alloc(3)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(3211))
	err = alloc.Rebase(3, int64(6543), false)
	c.Assert(err, IsNil)
	id, err = alloc.Alloc(3)
	c.Assert(err, IsNil)
	c.Assert(id, Equals, int64(6544))
}

开发者ID:XuHuaiyu，项目名称:tidb，代码行数:85，代码来源:autoid_test.go

示例18: getTable

func (d *ddl) getTable(schemaID int64, tblInfo *model.TableInfo) (table.Table, error) {
	alloc := autoid.NewAllocator(d.store, schemaID)
	tbl, err := table.TableFromMeta(alloc, tblInfo)
	return tbl, errors.Trace(err)
}

开发者ID:anywhy，项目名称:tidb，代码行数:5，代码来源:table.go

示例19: Set

// Set sets DBInfo to information schema.
func (h *Handle) Set(newInfo []*model.DBInfo, schemaMetaVersion int64) error {
	info := &infoSchema{
		schemaNameToID:    map[string]int64{},
		tableNameToID:     map[tableName]int64{},
		columnNameToID:    map[columnName]int64{},
		schemas:           map[int64]*model.DBInfo{},
		tables:            map[int64]table.Table{},
		tableAllocators:   map[int64]autoid.Allocator{},
		columns:           map[int64]*model.ColumnInfo{},
		indices:           map[indexName]*model.IndexInfo{},
		columnIndices:     map[int64][]*model.IndexInfo{},
		schemaMetaVersion: schemaMetaVersion,
	}
	var err error
	var hasOldInfo bool
	infoschema := h.Get()
	if infoschema != nil {
		hasOldInfo = true
	}
	for _, di := range newInfo {
		info.schemas[di.ID] = di
		info.schemaNameToID[di.Name.L] = di.ID
		for _, t := range di.Tables {
			alloc := autoid.NewAllocator(h.store, di.ID)
			if hasOldInfo {
				val, ok := infoschema.AllocByID(t.ID)
				if ok {
					alloc = val
				}
			}
			info.tableAllocators[t.ID] = alloc
			info.tables[t.ID], err = table.TableFromMeta(alloc, t)
			if err != nil {
				return errors.Trace(err)
			}
			tname := tableName{di.Name.L, t.Name.L}
			info.tableNameToID[tname] = t.ID
			for _, c := range t.Columns {
				info.columns[c.ID] = c
				info.columnNameToID[columnName{tname, c.Name.L}] = c.ID
			}
			for _, idx := range t.Indices {
				info.indices[indexName{tname, idx.Name.L}] = idx
				for _, idxCol := range idx.Columns {
					columnID := t.Columns[idxCol.Offset].ID
					columnIndices := info.columnIndices[columnID]
					info.columnIndices[columnID] = append(columnIndices, idx)
				}
			}
		}
	}
	// Build Information_Schema
	info.schemaNameToID[h.memSchema.isDB.Name.L] = h.memSchema.isDB.ID
	info.schemas[h.memSchema.isDB.ID] = h.memSchema.isDB
	for _, t := range h.memSchema.isDB.Tables {
		tbl, ok := h.memSchema.nameToTable[t.Name.L]
		if !ok {
			return ErrTableNotExists.Gen("table `%s` is missing.", t.Name)
		}
		info.tables[t.ID] = tbl
		tname := tableName{h.memSchema.isDB.Name.L, t.Name.L}
		info.tableNameToID[tname] = t.ID
		for _, c := range t.Columns {
			info.columns[c.ID] = c
			info.columnNameToID[columnName{tname, c.Name.L}] = c.ID
		}
	}

	// Add Performance_Schema
	psDB := h.memSchema.perfHandle.GetDBMeta()
	info.schemaNameToID[psDB.Name.L] = psDB.ID
	info.schemas[psDB.ID] = psDB
	for _, t := range psDB.Tables {
		tbl, ok := h.memSchema.perfHandle.GetTable(t.Name.O)
		if !ok {
			return ErrTableNotExists.Gen("table `%s` is missing.", t.Name)
		}
		info.tables[t.ID] = tbl
		tname := tableName{psDB.Name.L, t.Name.L}
		info.tableNameToID[tname] = t.ID
		for _, c := range t.Columns {
			info.columns[c.ID] = c
			info.columnNameToID[columnName{tname, c.Name.L}] = c.ID
		}
	}
	// Should refill some tables in Information_Schema.
	// schemata/tables/columns/statistics
	dbNames := make([]string, 0, len(info.schemas))
	dbInfos := make([]*model.DBInfo, 0, len(info.schemas))
	for _, v := range info.schemas {
		dbNames = append(dbNames, v.Name.L)
		dbInfos = append(dbInfos, v)
	}
	err = refillTable(h.memSchema.schemataTbl, dataForSchemata(dbNames))
	if err != nil {
		return errors.Trace(err)
	}
	err = refillTable(h.memSchema.tablesTbl, dataForTables(dbInfos))
	if err != nil {
//.........这里部分代码省略.........

开发者ID:XuHuaiyu，项目名称:tidb，代码行数:101，代码来源:infoschema.go

注：本文中的github.com/pingcap/tidb/meta/autoid.NewAllocator函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。