aoe

package
v0.4.0 Latest Latest
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 Go to latest Published: May 5, 2022 License: Apache-2.0 Imports: 4 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	SharedShardUnique = "###shared"
)

Variables

This section is empty.

Functions

This section is empty.

Types

type Block 

type Block interface {
	engine.Statistics

	ID() string
	Prefetch([]string)
	Read([]uint64, []string, []*bytes.Buffer, []*bytes.Buffer) (*batch.Batch, error) // read only arguments
}

type CatalogInfo 

type CatalogInfo struct {
	Id   uint64
	Name string
}

type ColumnInfo 

type ColumnInfo struct {
	SchemaId    uint64             `json:"schema_id"`
	TableID     uint64             `json:"table_id"`
	Id          uint64             `json:"column_id"`
	Name        string             `json:"name"`
	Type        types.Type         `json:"type"`
	Default     engine.DefaultExpr `json:"default"`
	Alg         int                `json:"alg"`
	Epoch       uint64             `json:"epoch"`
	PrimaryKey  bool               `json:"primary_key"` // PrimaryKey is the name of the column of the primary key
	NullAbility bool               `json:"nullability"`
}

ColumnInfo stores the information of a column.

type IndexInfo 

type IndexInfo struct {
	SchemaId uint64   `json:"schema_id"`
	TableId  uint64   `json:"table_id"`
	Columns  []uint64 `json:"columns"`
	// Id          uint64   `json:"id"`
	Name        string   `json:"index_names"`
	ColumnNames []string `json:"column_names"`
	Type        IndexT   `json:"type"`
}

type IndexT 

type IndexT uint16
const (
	ZoneMap IndexT = iota
	Bsi
	NumBsi
	FixStrBsi
	Invalid
)

type Property 

type Property struct {
	Key   string
	Value string
}

type SchemaInfo 

type SchemaInfo struct {
	CatalogId uint64       `json:"catalog_id"`
	Id        uint64       `json:"id"`
	Name      string       `json:"name"`
	Tables    []*TableInfo `json:"tables"` // Tables in the DBName.
	State     SchemaState  `json:"state"`
	Type      int          `json:"type"` // Engine type of schema: RSE、AOE、Spill
	Epoch     uint64       `json:"epoch"`
}

SchemaInfo stores the information of a schema(database).

type SchemaState 

type SchemaState byte
const (
	// StateNone means this schema element is absent and can't be used.
	StateNone SchemaState = iota
	// StateDeleteOnly means we can only delete items for this schema element.
	StateDeleteOnly
	// StatePublic means this schema element is ok for all write and read operations.
	StatePublic
)

type Segment 

type Segment interface {
	engine.Statistics

	ID() string
	Blocks() []string
	Block(string) Block
	NewSparseFilter() SparseFilter
}

type SegmentInfo 

type SegmentInfo struct {
	TableId     uint64 `json:"table_id"`
	Id          uint64 `json:"id"`
	GroupId     uint64 `json:"group_id"`
	TabletId    string `json:"tablet_id"`
	PartitionId string `json:"partition_id"`
	Epoch       uint64 `json:"epoch"`
}

type SparseFilter 

type SparseFilter interface {
	Eq(string, interface{}) ([]string, error)
	Ne(string, interface{}) ([]string, error)
	Lt(string, interface{}) ([]string, error)
	Le(string, interface{}) ([]string, error)
	Gt(string, interface{}) ([]string, error)
	Ge(string, interface{}) ([]string, error)
	Btw(string, interface{}, interface{}) ([]string, error)
}

type Store 

type Store interface {
	Blocks() []Block
	SparseFilterBlocks() []Block
}

type TableInfo 

type TableInfo struct {
	SchemaId   uint64       `json:"schema_id"`
	Id         uint64       `json:"id"`
	Name       string       `json:"name"`
	Type       uint64       `json:"type"` // Type of the table: BASE TABLE for a normal table, VIEW for a view, etc.
	Indices    []IndexInfo  `json:"indices"`
	Columns    []ColumnInfo `json:"columns"` // Column is listed in order in which they appear in schema
	Comment    []byte       `json:"comment"`
	State      SchemaState  `json:"state"`
	Partition  []byte       `json:"partition"`
	Properties []Property
	Epoch      uint64 `json:"epoch"`
}

TableInfo stores the information of a table or view.

type TabletInfo 

type TabletInfo struct {
	Name    string
	ShardId uint64
	Table   TableInfo
}

Source Files

View all Source files

Directories

Path Synopsis
cmd
demo command
read command
common
codec
helper
queue
util
dates
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
datetimes
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
float32s
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
float64s
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
int16s
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
int32s
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
int64s
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
int8s
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
uint16s
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
uint32s
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
uint64s
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
uint8s
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
varchar
Package heap provides heap operations for any type that implements heap.Interface.
 Package heap provides heap operations for any type that implements heap.Interface.
adaptor
aoedb/v1
buffer
buffer/manager
buffer/manager/iface
buffer/node
buffer/node/iface
common
common/iterator
container
container/batch
container/vector
db
db/factories
db/factories/base
db/gcreqs
db/sched
db/sched/iface
dbi
event
flusher
gc
gc/gci
internal/invariants
layout/base
layout/dataio
layout/index
layout/iterator/iface
layout/table/v1
layout/table/v1/col
layout/table/v1/handle
layout/table/v1/iface
layout/table/v1/wrapper
logstore
logstore/sm
metadata/v1
mock
mutation
mutation/base
mutation/buffer
mutation/buffer/base
ops
ops/base
ops/gc
sched
shard
testutils
testutils/config
wal
wal/shard
worker
worker/base

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