meta

package
Version: v3.1.0-fork Latest Latest
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Published: Apr 18, 2020 License: Apache-2.0 Imports: 18 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source
var (
	// ErrDBExists is the error for db exists.
	ErrDBExists = terror.ClassMeta.New(mysql.ErrDBCreateExists, mysql.MySQLErrName[mysql.ErrDBCreateExists])
	// ErrDBNotExists is the error for db not exists.
	ErrDBNotExists = terror.ClassMeta.New(mysql.ErrBadDB, mysql.MySQLErrName[mysql.ErrBadDB])
	// ErrTableExists is the error for table exists.
	ErrTableExists = terror.ClassMeta.New(mysql.ErrTableExists, mysql.MySQLErrName[mysql.ErrTableExists])
	// ErrTableNotExists is the error for table not exists.
	ErrTableNotExists = terror.ClassMeta.New(mysql.ErrNoSuchTable, mysql.MySQLErrName[mysql.ErrNoSuchTable])
)

Functions

func DDLJobHistoryKey

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

DDLJobHistoryKey is only used for testing.

Types

type JobListKeyType

type JobListKeyType []byte

JobListKeyType is a key type of the DDL job queue.

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 LastJobIterator

type LastJobIterator struct {
	// contains filtered or unexported fields
}

LastJobIterator is the iterator for gets latest history.

func (*LastJobIterator) GetLastJobs

func (i *LastJobIterator) GetLastJobs(num int, jobs []*model.Job) ([]*model.Job, error)

GetLastJobs gets last several jobs.

type Meta

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

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

func NewSnapshotMeta(snapshot kv.Snapshot) *Meta

NewSnapshotMeta creates a Meta with snapshot.

func (*Meta) AddHistoryDDLJob

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

AddHistoryDDLJob adds DDL job to history.

func (*Meta) CreateDatabase

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

CreateDatabase creates a database with db info.

func (*Meta) CreateSequenceAndSetSeqValue

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

CreateSequenceAndSetSeqValue creates sequence with tableInfo in database, and rebase the sequence seqValue.

func (*Meta) CreateTableAndSetAutoID

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

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

func (*Meta) CreateTableOrView

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

CreateTableOrView creates a table with tableInfo in database.

func (*Meta) DDLJobQueueLen

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

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

DeQueueDDLJob pops a DDL job from the list.

func (*Meta) DropDatabase

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

DropDatabase drops whole database.

func (*Meta) DropSequence

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

DropSequence drops sequence in database. Sequence is made of table struct and kv value pair.

func (*Meta) DropTableOrView

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

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

EnQueueDDLJob adds a DDL job to the list.

func (*Meta) FinishBootstrap

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

FinishBootstrap finishes bootstrap.

func (*Meta) GenAutoRandomID

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

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

func (*Meta) GenAutoTableID

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

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

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

GenGlobalID generates next id globally.

func (*Meta) GenGlobalIDs

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

GenGlobalIDs generates the next n global IDs.

func (*Meta) GenSchemaVersion

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

GenSchemaVersion generates next schema version.

func (*Meta) GenSequenceValue

func (m *Meta) GenSequenceValue(dbID, sequenceID, step int64) (int64, error)

GenSequenceValue adds step to the sequence value and returns the sum.

func (*Meta) GetAllDDLJobsInQueue

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

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

GetAllHistoryDDLJobs gets all history DDL jobs.

func (*Meta) GetAutoRandomID

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

GetAutoRandomID gets current auto shard id with table id.

func (*Meta) GetAutoTableID

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

GetAutoTableID gets current auto id with table id.

func (*Meta) GetBootstrapVersion

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

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

func (*Meta) GetDDLJobByIdx

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

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

GetDDLReorgHandle gets the latest processed DDL reorganize position.

func (*Meta) GetDatabase

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

GetDatabase gets the database value with ID.

func (*Meta) GetGlobalID

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

GetGlobalID gets current global id.

func (*Meta) GetHistoryDDLJob

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

GetHistoryDDLJob gets a history DDL job.

func (*Meta) GetLastHistoryDDLJobsIterator

func (m *Meta) GetLastHistoryDDLJobsIterator() (*LastJobIterator, error)

GetLastHistoryDDLJobsIterator gets latest N history ddl jobs iterator.

func (*Meta) GetLastNHistoryDDLJobs

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

GetLastNHistoryDDLJobs gets latest N history ddl jobs.

func (*Meta) GetSchemaDiff

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

GetSchemaDiff gets the modification information on a given schema version.

func (*Meta) GetSchemaVersion

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

GetSchemaVersion gets current global schema version.

func (*Meta) GetSequenceCycle

func (m *Meta) GetSequenceCycle(dbID int64, sequenceID int64) (int64, error)

GetSequenceCycle gets current sequence cycle times with sequence id.

func (*Meta) GetSequenceValue

func (m *Meta) GetSequenceValue(dbID int64, sequenceID int64) (int64, error)

GetSequenceValue gets current sequence value with sequence id.

func (*Meta) GetTable

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

GetTable gets the table value in database with tableID.

func (*Meta) ListDatabases

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

ListDatabases shows all databases.

func (*Meta) ListTables

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

ListTables shows all tables in database.

func (*Meta) RemoveDDLReorgHandle

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

RemoveDDLReorgHandle removes the job reorganization related handles.

func (*Meta) SetSchemaDiff

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

SetSchemaDiff sets the modification information on a given schema version.

func (*Meta) SetSequenceCycle

func (m *Meta) SetSequenceCycle(dbID int64, sequenceID int64, round int64) error

SetSequenceCycle sets cycle times value when sequence in cycle.

func (*Meta) SetSequenceValue

func (m *Meta) SetSequenceValue(dbID int64, sequenceID int64, start int64) error

SetSequenceValue sets start value when sequence in cycle.

func (*Meta) UpdateDDLJob

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

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

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

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

UpdateDatabase updates a database with db info.

func (*Meta) UpdateTable

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

UpdateTable updates the table with table info.

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