explain

package
v1.2.4 Latest Latest
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 Go to latest Published: Sep 20, 2024 License: Apache-2.0 Imports: 16 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	Label_Table_Name                = "Full table name"
	Label_Table_Columns             = "Columns"
	Label_Total_Columns             = "Total columns"
	Label_Scan_Columns              = "Scan columns"
	Label_List_Expression           = "List of expressions"
	Label_Grouping_Keys             = "Grouping keys"
	Label_Agg_Functions             = "Aggregate functions"
	Label_Filter_Conditions         = "Filter conditions"
	Label_Block_Filter_Conditions   = "Block Filter conditions"
	Label_Join_Type                 = "Join type"
	Label_Join_Conditions           = "Join conditions"
	Label_Left_NodeId               = "Left node id"
	Label_Right_NodeId              = "Right node id"
	Label_Sort_Keys                 = "Sort keys"
	Label_List_Values               = "List of values"
	Label_Union_Expressions         = "Union expressions"
	Label_Union_All_Expressions     = "Union all expressions"
	Label_Intersect_Expressions     = "Intersect expressions"
	Label_Intersect_All_Expressions = "Intersect all expressions"
	Label_Minus_Expressions         = "Minus expressions"
	Label_Pre_Insert                = "Pre insert"
	Label_Pre_InsertUk              = "Pre insert uk"
	Label_Pre_InsertSk              = "Pre insert sk"
	Label_Pre_Delete                = "Pre delete"
	Label_Sink                      = "Sink"
	Label_Sink_Scan                 = "Sink scan"
	Label_Recursive_SCAN            = "Recursive scan"
	Label_Recursive_CTE             = "CTE scan"
	Label_Lock_Op                   = "Lock op"
	Label_Row_Number                = "Number of rows"
	Label_Offset                    = "Offset"

	Label_Time_Window       = "Time window"
	Label_Partition         = "Partition"
	Label_Fill              = "Fill"
	Label_Boardcast         = "Boardcast"
	Label_Split             = "Split"
	Label_Gather            = "Gather"
	Label_Assert            = "Assert"
	Label_On_Duplicate_Key  = "On duplicate key"
	Label_Fuzzy_Filter      = "Fuzzy filter"
	Label_External_Function = "External Function"
	Label_Distinct          = "Distinct"
	Label_Sample            = "Sample"
	Label_Window            = "Window"
	Label_Minus_All         = "Minus All"
	Label_Unique            = "Unique"
	Label_Replace           = "Replace"
	Label_Unknown           = "Unknown"
	Label_Meterial          = "Meterial"
)
View Source 
const (
	Statistic_Unit_ns    = "ns"
	Statistic_Unit_count = "count"
	Statistic_Unit_byte  = "byte"
)
View Source 
const DiskIO = "Disk IO"
View Source 
const ExternalScan = "External Scan"
View Source 
const GB = MB * 1024
View Source 
const InputRows = "Input Rows"
View Source 
const InputSize = "Input Size"
View Source 
const InsertTime = "Insert Time"
View Source 
const MB = 1024 * 1024
View Source 
const MILLION = 1000000
View Source 
const MemorySize = "Memory Size"
View Source 
const Network = "Network"
View Source 
const OutputRows = "Output Rows"
View Source 
const OutputSize = "Output Size"
View Source 
const S3IOByte = "S3 IO Byte"
View Source 
const S3IOInputCount = "S3 IO Input Count"
View Source 
const S3IOOutputCount = "S3 IO Output Count"
View Source 
const ScanTime = "Scan Time"
View Source 
const TableScan = "Table Scan"
View Source 
const TimeConsumed = "Time Consumed"
View Source 
const WaitTime = "Wait Time"

Variables

View Source 
var MarshalPlanOptions = ExplainOptions{
	Verbose: true,
	Analyze: true,
	Format:  EXPLAIN_FORMAT_TEXT,
}

The global variable is used to serialize plan and avoid objects being repeatedly created

Functions

func DebugPlan added in v1.0.0 

func DebugPlan(pl *plan.Plan) string

func GetDeleteTableLabelValue added in v0.8.0 

func GetDeleteTableLabelValue(deleteCtx *plan.DeleteCtx) []string

func GetExprsLabelValue added in v0.6.0 

func GetExprsLabelValue(ctx context.Context, exprList []*plan.Expr, options *ExplainOptions) ([]string, error)

func GetInputRowsAndInputSize added in v1.0.0 

func GetInputRowsAndInputSize(ctx context.Context, node *plan.Node, options *ExplainOptions) (rows int64, size int64)

GetInputRowsAndInputSize return plan.Node AnalyzeInfo InputRows and InputSize. migrate ExplainData.StatisticsRead to here

func GetOrderByLabelValue added in v0.8.0 

func GetOrderByLabelValue(ctx context.Context, orderbyList []*plan.OrderBySpec, options *ExplainOptions) ([]string, error)

func GetStatistic4Trace added in v1.0.0 

func GetStatistic4Trace(ctx context.Context, node *plan.Node, options *ExplainOptions) (s statistic.StatsArray)

func GetTableColsLableValue added in v0.6.0 

func GetTableColsLableValue(ctx context.Context, cols []*plan.ColDef, options *ExplainOptions) []string

func PreOrderPlan added in v0.6.0 

func PreOrderPlan(ctx context.Context, node *plan.Node, Nodes []*plan.Node, graphData *GraphData, options *ExplainOptions) error

Types

type AnalyzeInfoDescribeImpl added in v0.6.0 

type AnalyzeInfoDescribeImpl struct {
	AnalyzeInfo *plan.AnalyzeInfo
}

func NewAnalyzeInfoDescribeImpl added in v0.6.0 

func NewAnalyzeInfoDescribeImpl(analyze *plan.AnalyzeInfo) *AnalyzeInfoDescribeImpl

func (AnalyzeInfoDescribeImpl) GetDescription added in v0.6.0 

func (a AnalyzeInfoDescribeImpl) GetDescription(ctx context.Context, options *ExplainOptions, buf *bytes.Buffer) error

type CostDescribeImpl 

type CostDescribeImpl struct {
	Stats *plan.Stats
}

func (*CostDescribeImpl) GetDescription 

func (c *CostDescribeImpl) GetDescription(ctx context.Context, options *ExplainOptions, buf *bytes.Buffer) error

type Edge added in v0.6.0 

type Edge struct {
	Id     string `json:"id"`
	Src    string `json:"src"`
	Dst    string `json:"dst"`
	Output int64  `json:"output"`
	Unit   string `json:"unit"`
}

type ExplainData added in v0.6.0 

type ExplainData struct {
	Steps        []Step `json:"steps"`
	Code         uint16 `json:"code"`
	Message      string `json:"message"`
	Uuid         string `json:"uuid"`
	NewPlanStats statistic.StatsInfo
}

func BuildJsonPlan added in v0.8.0 

func BuildJsonPlan(ctx context.Context, uuid uuid.UUID, options *ExplainOptions, query *plan.Query) *ExplainData

func NewExplainData added in v0.6.0 

func NewExplainData(uuid uuid.UUID) *ExplainData

func NewExplainDataFail added in v0.6.0 

func NewExplainDataFail(uuid uuid.UUID, code uint16, msg string) *ExplainData

func (*ExplainData) StatisticsRead deprecated added in v0.6.0 

func (d *ExplainData) StatisticsRead() (rows int64, size int64)

StatisticsRead statistics read rows, size in ExplainData

Deprecated: please use explain.GetInputRowsAndInputSize instead.

type ExplainDataBuffer 

type ExplainDataBuffer struct {
	Start       int
	End         int
	CurrentLine int
	NodeSize    int
	Lines       []string
}

func NewExplainDataBuffer 

func NewExplainDataBuffer() *ExplainDataBuffer

func (*ExplainDataBuffer) AppendCurrentLine 

func (buf *ExplainDataBuffer) AppendCurrentLine(temp string)

func (*ExplainDataBuffer) PushNewLine 

func (buf *ExplainDataBuffer) PushNewLine(line string, isNewNode bool, level int)

func (*ExplainDataBuffer) PushPlanTitle added in v0.8.0 

func (buf *ExplainDataBuffer) PushPlanTitle(title string)

func (*ExplainDataBuffer) ToString added in v1.0.0 

func (buf *ExplainDataBuffer) ToString() string

type ExplainFormat 

type ExplainFormat int32
const (
	EXPLAIN_FORMAT_TEXT ExplainFormat = 0
	EXPLAIN_FORMAT_XML  ExplainFormat = 1
	EXPLAIN_FORMAT_JSON ExplainFormat = 2
	EXPLAIN_FORMAT_DOT  ExplainFormat = 3
)

type ExplainOptions 

type ExplainOptions struct {
	Verbose  bool
	Analyze  bool
	Format   ExplainFormat
	NodeType plan.Node_NodeType
}

func NewExplainDefaultOptions 

func NewExplainDefaultOptions() *ExplainOptions

type ExplainQuery 

type ExplainQuery interface {
	ExplainPlan(ctx context.Context, buffer *ExplainDataBuffer, options *ExplainOptions) error
}

type ExplainQueryImpl 

type ExplainQueryImpl struct {
	QueryPlan *plan.Query
}

func NewExplainQueryImpl 

func NewExplainQueryImpl(query *plan.Query) *ExplainQueryImpl

func (*ExplainQueryImpl) ExplainPlan 

func (e *ExplainQueryImpl) ExplainPlan(ctx context.Context, buffer *ExplainDataBuffer, options *ExplainOptions) error

type ExprListDescribeImpl 

type ExprListDescribeImpl struct {
	ExprList []*plan.Expr // ProjectList,OnList,FilterList,GroupBy,GroupingSet and so on
}

func NewExprListDescribeImpl 

func NewExprListDescribeImpl(ExprList []*plan.Expr) *ExprListDescribeImpl

func (*ExprListDescribeImpl) GetDescription 

func (e *ExprListDescribeImpl) GetDescription(ctx context.Context, options *ExplainOptions, buf *bytes.Buffer) error

type FormatSettings 

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

type Global added in v0.6.0 

type Global struct {
	Statistics Statistics `json:"statistics"`
	TotalStats TotalStats `json:"totalStats"`
}

func NewGlobal added in v0.6.0 

func NewGlobal() *Global

type GraphData added in v0.6.0 

type GraphData struct {
	Nodes  []Node  `json:"nodes"`
	Edges  []Edge  `json:"edges"`
	Labels []Label `json:"labels"`
	Global Global  `json:"global"`
}

func NewGraphData added in v0.6.0 

func NewGraphData(nodeSize int) *GraphData

func (*GraphData) StatisticsGlobalResource added in v0.7.0 

func (graphData *GraphData) StatisticsGlobalResource(ctx context.Context) error

Statistics of global resource usage, adding resources of all nodes

type Label added in v0.6.0 

type Label struct {
	Name  string      `json:"name"`
	Value interface{} `json:"value"`
}

func NewLabel added in v0.6.0 

func NewLabel(name string, value interface{}) *Label

type MarshalNode added in v0.6.0 

type MarshalNode interface {
	GetNodeName(ctx context.Context) (string, error)
	GetNodeTitle(ctx context.Context, options *ExplainOptions) (string, error)
	GetNodeLabels(ctx context.Context, options *ExplainOptions) ([]Label, error)
	GetStatistics(ctx context.Context, options *ExplainOptions) Statistics
	GetStats() Stats
	GetTotalStats() TotalStats
}

type MarshalNodeImpl added in v0.6.0 

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

func NewMarshalNodeImpl added in v0.6.0 

func NewMarshalNodeImpl(node *plan.Node) *MarshalNodeImpl

func (MarshalNodeImpl) GetNodeLabels added in v0.6.0 

func (m MarshalNodeImpl) GetNodeLabels(ctx context.Context, options *ExplainOptions) ([]Label, error)

func (MarshalNodeImpl) GetNodeName added in v0.6.0 

func (m MarshalNodeImpl) GetNodeName(ctx context.Context) (string, error)

func (MarshalNodeImpl) GetNodeTitle added in v0.6.0 

func (m MarshalNodeImpl) GetNodeTitle(ctx context.Context, options *ExplainOptions) (string, error)

func (MarshalNodeImpl) GetStatistics added in v0.6.0 

func (m MarshalNodeImpl) GetStatistics(ctx context.Context, options *ExplainOptions) Statistics

func (MarshalNodeImpl) GetStats added in v0.7.0 

func (m MarshalNodeImpl) GetStats() Stats

func (MarshalNodeImpl) GetTotalStats added in v0.6.0 

func (m MarshalNodeImpl) GetTotalStats() TotalStats

type Node added in v0.6.0 

type Node struct {
	NodeId     string     `json:"id"`
	Name       string     `json:"name"`
	Title      string     `json:"title"`
	Labels     []Label    `json:"labels"`
	Statistics Statistics `json:"statistics"`
	Stats      Stats      `json:"stats"`
	TotalStats TotalStats `json:"totalStats"`
}

func ConvertNode added in v0.6.0 

func ConvertNode(ctx context.Context, node *plan.Node, options *ExplainOptions) (*Node, error)

type NodeDescribe 

type NodeDescribe interface {
	GetNodeBasicInfo(ctx context.Context, options *ExplainOptions) (string, error)
	GetExtraInfo(ctx context.Context, options *ExplainOptions) ([]string, error)
	GetProjectListInfo(ctx context.Context, options *ExplainOptions) (string, error)
	GetJoinTypeInfo(ctx context.Context, options *ExplainOptions) (string, error)
	GetJoinConditionInfo(ctx context.Context, options *ExplainOptions) (string, error)
	GetFilterConditionInfo(ctx context.Context, options *ExplainOptions) (string, error)
	GetOrderByInfo(ctx context.Context, options *ExplainOptions) (string, error)
	GetGroupByInfo(ctx context.Context, options *ExplainOptions) (string, error)
	GetTableDef(ctx context.Context, options *ExplainOptions) (string, error)
	GetActualAnalyzeInfo(ctx context.Context, options *ExplainOptions) (string, error)
}

type NodeDescribeImpl 

type NodeDescribeImpl struct {
	Node *plan.Node
}

func NewNodeDescriptionImpl 

func NewNodeDescriptionImpl(node *plan.Node) *NodeDescribeImpl

func (*NodeDescribeImpl) GetActualAnalyzeInfo added in v0.6.0 

func (ndesc *NodeDescribeImpl) GetActualAnalyzeInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetAggregationInfo 

func (ndesc *NodeDescribeImpl) GetAggregationInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetBlockFilterConditionInfo added in v0.8.0 

func (ndesc *NodeDescribeImpl) GetBlockFilterConditionInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetExtraInfo 

func (ndesc *NodeDescribeImpl) GetExtraInfo(ctx context.Context, options *ExplainOptions) ([]string, error)

func (*NodeDescribeImpl) GetFillColsInfo added in v1.1.0 

func (ndesc *NodeDescribeImpl) GetFillColsInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetFillModeInfo added in v1.1.0 

func (ndesc *NodeDescribeImpl) GetFillModeInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetFilterConditionInfo 

func (ndesc *NodeDescribeImpl) GetFilterConditionInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetGroupByInfo 

func (ndesc *NodeDescribeImpl) GetGroupByInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetJoinConditionInfo 

func (ndesc *NodeDescribeImpl) GetJoinConditionInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetJoinTypeInfo 

func (ndesc *NodeDescribeImpl) GetJoinTypeInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetNodeBasicInfo 

func (ndesc *NodeDescribeImpl) GetNodeBasicInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetOrderByInfo 

func (ndesc *NodeDescribeImpl) GetOrderByInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetPartitionPruneInfo added in v1.0.0 

func (ndesc *NodeDescribeImpl) GetPartitionPruneInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetProjectListInfo 

func (ndesc *NodeDescribeImpl) GetProjectListInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetRecvMessageInfo added in v1.2.0 

func (ndesc *NodeDescribeImpl) GetRecvMessageInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetRuntimeFilteProbeInfo added in v0.8.0 

func (ndesc *NodeDescribeImpl) GetRuntimeFilteProbeInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetRuntimeFilterBuildInfo added in v0.8.0 

func (ndesc *NodeDescribeImpl) GetRuntimeFilterBuildInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetSampleFuncInfo added in v1.1.0 

func (ndesc *NodeDescribeImpl) GetSampleFuncInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetSendMessageInfo added in v1.2.0 

func (ndesc *NodeDescribeImpl) GetSendMessageInfo(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetTableDef 

func (ndesc *NodeDescribeImpl) GetTableDef(ctx context.Context, options *ExplainOptions) (string, error)

func (*NodeDescribeImpl) GetWindowSpectListInfo added in v0.8.0 

func (ndesc *NodeDescribeImpl) GetWindowSpectListInfo(ctx context.Context, options *ExplainOptions) (string, error)

type NodeElemDescribe 

type NodeElemDescribe interface {
	GetDescription(ctx context.Context, options *ExplainOptions, buf *bytes.Buffer) error
}

type OrderByDescribeImpl 

type OrderByDescribeImpl struct {
	OrderBy []*plan.OrderBySpec
}

func NewOrderByDescribeImpl 

func NewOrderByDescribeImpl(OrderBy []*plan.OrderBySpec) *OrderByDescribeImpl

func (*OrderByDescribeImpl) GetDescription 

func (o *OrderByDescribeImpl) GetDescription(ctx context.Context, options *ExplainOptions, buf *bytes.Buffer) error

type PlanStats added in v0.7.0 

type PlanStats struct {
}

type RowsetDataDescribeImpl 

type RowsetDataDescribeImpl struct {
	RowsetData *plan.RowsetData
}

func (*RowsetDataDescribeImpl) GetDescription 

func (r *RowsetDataDescribeImpl) GetDescription(ctx context.Context, options *ExplainOptions, buf *bytes.Buffer) error

type StatisticValue added in v0.6.0 

type StatisticValue struct {
	Name  string `json:"name"`
	Value int64  `json:"value"`
	Unit  string `json:"unit"`
}

func NewStatisticValue added in v0.7.0 

func NewStatisticValue(name string, unit string) *StatisticValue

type Statistics added in v0.6.0 

type Statistics struct {
	Time       []StatisticValue `json:"Time"`
	Memory     []StatisticValue `json:"Memory"`
	Throughput []StatisticValue `json:"Throughput"`
	IO         []StatisticValue `json:"IO"`
	Network    []StatisticValue `json:"Network"`
}

func NewStatistics added in v0.6.0 

func NewStatistics() *Statistics

type Stats added in v0.6.0 

type Stats struct {
	BlockNum    int32   `json:"blocknum"`
	Outcnt      float64 `json:"outcnt"`
	Cost        float64 `json:"cost"`
	HashmapSize float64 `json:"hashmapsize"`
	Rowsize     float64 `json:"rowsize"`
}

type Step added in v0.6.0 

type Step struct {
	GraphData   GraphData `json:"graphData"`
	Step        int       `json:"step"`
	Description string    `json:"description"`
	State       string    `json:"state"`
	PlanStats   PlanStats `json:"stats"`
}

func NewStep added in v0.6.0 

func NewStep(step int) *Step

type TotalStats added in v0.6.0 

type TotalStats struct {
	Name  string `json:"name"`
	Value int64  `json:"value"`
	Unit  string `json:"unit"`
}

type WinSpecDescribeImpl 

type WinSpecDescribeImpl struct {
	WinSpec *plan.WindowSpec
}

func (*WinSpecDescribeImpl) GetDescription 

func (w *WinSpecDescribeImpl) GetDescription(ctx context.Context, options *ExplainOptions, buf *bytes.Buffer) error

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