tidb: github.com/pingcap/tidb/meta Index | Files | Directories

package meta

import "github.com/pingcap/tidb/meta"

Index

Package Files

meta.go

Variables

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var (

    // ErrDBExists is the error for db exists.
    ErrDBExists = terror.ClassMeta.New(codeDatabaseExists, "database already exists")
    // ErrDBNotExists is the error for db not exists.
    ErrDBNotExists = terror.ClassMeta.New(codeDatabaseNotExists, "database doesn't exist")
    // ErrTableExists is the error for table exists.
    ErrTableExists = terror.ClassMeta.New(codeTableExists, "table already exists")
    // ErrTableNotExists is the error for table not exists.
    ErrTableNotExists = terror.ClassMeta.New(codeTableNotExists, "table doesn't exist")
)

func DDLJobHistoryKey Uses

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func DDLJobHistoryKey(m *Meta, jobID int64) []byte

DDLJobHistoryKey is only used for testing.

type JobListKeyType Uses

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type JobListKeyType []byte

JobListKeyType is a key type of the DDL job queue.

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var (
    // DefaultJobListKey keeps all actions of DDL jobs except "add index".
    DefaultJobListKey JobListKeyType = mDDLJobListKey
    // AddIndexJobListKey only keeps the action of adding index.
    AddIndexJobListKey JobListKeyType = mDDLJobAddIdxList
)

type Meta Uses

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type Meta struct {
    StartTS uint64 // StartTS is the txn's start TS.
    // contains filtered or unexported fields
}

Meta is for handling meta information in a transaction.

func NewMeta Uses

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func NewMeta(txn kv.Transaction, jobListKeys ...JobListKeyType) *Meta

NewMeta creates a Meta in transaction txn. If the current Meta needs to handle a job, jobListKey is the type of the job's list.

func NewSnapshotMeta Uses

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func NewSnapshotMeta(snapshot kv.Snapshot) *Meta

NewSnapshotMeta creates a Meta with snapshot.

func (*Meta) AddHistoryDDLJob Uses

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func (m *Meta) AddHistoryDDLJob(job *model.Job) error

AddHistoryDDLJob adds DDL job to history.

func (*Meta) CreateDatabase Uses

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func (m *Meta) CreateDatabase(dbInfo *model.DBInfo) error

CreateDatabase creates a database with db info.

func (*Meta) CreateTableAndSetAutoID Uses

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func (m *Meta) CreateTableAndSetAutoID(dbID int64, tableInfo *model.TableInfo, autoID int64) error

CreateTableAndSetAutoID creates a table with tableInfo in database, and rebases the table autoID.

func (*Meta) CreateTableOrView Uses

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func (m *Meta) CreateTableOrView(dbID int64, tableInfo *model.TableInfo) error

CreateTableOrView creates a table with tableInfo in database.

func (*Meta) DDLJobQueueLen Uses

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func (m *Meta) DDLJobQueueLen(jobListKeys ...JobListKeyType) (int64, error)

DDLJobQueueLen returns the DDL job queue length. The length of jobListKeys can only be 1 or 0. If its length is 1, we need to replace m.jobListKey with jobListKeys[0]. Otherwise, we use m.jobListKey directly.

func (*Meta) DeQueueDDLJob Uses

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func (m *Meta) DeQueueDDLJob() (*model.Job, error)

DeQueueDDLJob pops a DDL job from the list.

func (*Meta) DropDatabase Uses

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func (m *Meta) DropDatabase(dbID int64) error

DropDatabase drops whole database.

func (*Meta) DropTableOrView Uses

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func (m *Meta) DropTableOrView(dbID int64, tblID int64, delAutoID bool) error

DropTableOrView drops table in database. If delAutoID is true, it will delete the auto_increment id key-value of the table. For rename table, we do not need to rename auto_increment id key-value.

func (*Meta) EnQueueDDLJob Uses

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func (m *Meta) EnQueueDDLJob(job *model.Job) error

EnQueueDDLJob adds a DDL job to the list.

func (*Meta) FinishBootstrap Uses

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func (m *Meta) FinishBootstrap(version int64) error

FinishBootstrap finishes bootstrap.

func (*Meta) GenAutoTableID Uses

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func (m *Meta) GenAutoTableID(dbID, tableID, step int64) (int64, error)

GenAutoTableID adds step to the auto ID of the table and returns the sum.

func (*Meta) GenAutoTableIDKeyValue Uses

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func (m *Meta) GenAutoTableIDKeyValue(dbID, tableID, autoID int64) (key, value []byte)

GenAutoTableIDKeyValue generates meta key by dbID, tableID and corresponding value by autoID.

func (*Meta) GenGlobalID Uses

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func (m *Meta) GenGlobalID() (int64, error)

GenGlobalID generates next id globally.

func (*Meta) GenGlobalIDs Uses

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func (m *Meta) GenGlobalIDs(n int) ([]int64, error)

GenGlobalIDs generates the next n global IDs.

func (*Meta) GenSchemaVersion Uses

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func (m *Meta) GenSchemaVersion() (int64, error)

GenSchemaVersion generates next schema version.

func (*Meta) GetAllDDLJobsInQueue Uses

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func (m *Meta) GetAllDDLJobsInQueue(jobListKeys ...JobListKeyType) ([]*model.Job, error)

GetAllDDLJobsInQueue gets all DDL Jobs in the current queue. The length of jobListKeys can only be 1 or 0. If its length is 1, we need to replace m.jobListKey with jobListKeys[0]. Otherwise, we use m.jobListKey directly.

func (*Meta) GetAllHistoryDDLJobs Uses

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func (m *Meta) GetAllHistoryDDLJobs() ([]*model.Job, error)

GetAllHistoryDDLJobs gets all history DDL jobs.

func (*Meta) GetAutoTableID Uses

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func (m *Meta) GetAutoTableID(dbID int64, tableID int64) (int64, error)

GetAutoTableID gets current auto id with table id.

func (*Meta) GetBootstrapVersion Uses

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func (m *Meta) GetBootstrapVersion() (int64, error)

GetBootstrapVersion returns the version of the server which boostrap the store. If the store is not bootstraped, the version will be zero.

func (*Meta) GetDDLJobByIdx Uses

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func (m *Meta) GetDDLJobByIdx(index int64, jobListKeys ...JobListKeyType) (*model.Job, error)

GetDDLJobByIdx returns the corresponding DDL job by the index. The length of jobListKeys can only be 1 or 0. If its length is 1, we need to replace m.jobListKey with jobListKeys[0]. Otherwise, we use m.jobListKey directly.

func (*Meta) GetDDLReorgHandle Uses

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func (m *Meta) GetDDLReorgHandle(job *model.Job) (startHandle, endHandle, physicalTableID int64, err error)

GetDDLReorgHandle gets the latest processed DDL reorganize position.

func (*Meta) GetDatabase Uses

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func (m *Meta) GetDatabase(dbID int64) (*model.DBInfo, error)

GetDatabase gets the database value with ID.

func (*Meta) GetGlobalID Uses

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func (m *Meta) GetGlobalID() (int64, error)

GetGlobalID gets current global id.

func (*Meta) GetHistoryDDLJob Uses

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func (m *Meta) GetHistoryDDLJob(id int64) (*model.Job, error)

GetHistoryDDLJob gets a history DDL job.

func (*Meta) GetLastNHistoryDDLJobs Uses

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func (m *Meta) GetLastNHistoryDDLJobs(num int) ([]*model.Job, error)

GetLastNHistoryDDLJobs gets latest N history ddl jobs.

func (*Meta) GetSchemaDiff Uses

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func (m *Meta) GetSchemaDiff(schemaVersion int64) (*model.SchemaDiff, error)

GetSchemaDiff gets the modification information on a given schema version.

func (*Meta) GetSchemaVersion Uses

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func (m *Meta) GetSchemaVersion() (int64, error)

GetSchemaVersion gets current global schema version.

func (*Meta) GetTable Uses

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func (m *Meta) GetTable(dbID int64, tableID int64) (*model.TableInfo, error)

GetTable gets the table value in database with tableID.

func (*Meta) ListDatabases Uses

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func (m *Meta) ListDatabases() ([]*model.DBInfo, error)

ListDatabases shows all databases.

func (*Meta) ListTables Uses

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func (m *Meta) ListTables(dbID int64) ([]*model.TableInfo, error)

ListTables shows all tables in database.

func (*Meta) RemoveDDLReorgHandle Uses

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func (m *Meta) RemoveDDLReorgHandle(job *model.Job) error

RemoveDDLReorgHandle removes the job reorganization related handles.

func (*Meta) SetSchemaDiff Uses

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func (m *Meta) SetSchemaDiff(diff *model.SchemaDiff) error

SetSchemaDiff sets the modification information on a given schema version.

func (*Meta) UpdateDDLJob Uses

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func (m *Meta) UpdateDDLJob(index int64, job *model.Job, updateRawArgs bool, jobListKeys ...JobListKeyType) error

UpdateDDLJob updates the DDL job with index. updateRawArgs is used to determine whether to update the raw args when encode the job. The length of jobListKeys can only be 1 or 0. If its length is 1, we need to replace m.jobListKey with jobListKeys[0]. Otherwise, we use m.jobListKey directly.

func (*Meta) UpdateDDLReorgHandle Uses

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func (m *Meta) UpdateDDLReorgHandle(job *model.Job, startHandle, endHandle, physicalTableID int64) error

UpdateDDLReorgHandle saves the job reorganization latest processed information for later resuming.

func (*Meta) UpdateDDLReorgStartHandle Uses

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func (m *Meta) UpdateDDLReorgStartHandle(job *model.Job, startHandle int64) error

UpdateDDLReorgStartHandle saves the job reorganization latest processed start handle for later resuming.

func (*Meta) UpdateDatabase Uses

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func (m *Meta) UpdateDatabase(dbInfo *model.DBInfo) error

UpdateDatabase updates a database with db info.

func (*Meta) UpdateTable Uses

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func (m *Meta) UpdateTable(dbID int64, tableInfo *model.TableInfo) error

UpdateTable updates the table with table info.

Directories

PathSynopsis
autoid

Package meta imports 18 packages (graph) and is imported by 211 packages. Updated 2019-09-21. Refresh now. Tools for package owners.