tablesampler

Documentation

Index

• type TableSampleInfo
  • func NewTableSampleInfo(node *ast.TableSample, fullSchema *expression.Schema, ...) *TableSampleInfo
  • func (t *TableSampleInfo) MemoryUsage() (sum int64)

Types

type TableSampleInfo

type TableSampleInfo struct {
	AstNode    *ast.TableSample
	FullSchema *expression.Schema
	Partitions []table.PartitionedTable
}

TableSampleInfo contains the information for PhysicalTableSample.

func NewTableSampleInfo

func NewTableSampleInfo(node *ast.TableSample, fullSchema *expression.Schema,
	pt []table.PartitionedTable) *TableSampleInfo

NewTableSampleInfo creates a new TableSampleInfo.

func (*TableSampleInfo) MemoryUsage

func (t *TableSampleInfo) MemoryUsage() (sum int64)

MemoryUsage return the memory usage of TableSampleInfo