indexes

Documentation

Index

• func NewBTreeIndex(name, tableName string, unique bool, ...) impls.Index[BtreeIndexScanOptions]
• func NewHashIndex(name, tableName string, expression impls.Expression) impls.Index[HashIndexScanOptions]
• func NewPartialIndex[O impls.ScanOptions](index impls.Index[O], condition impls.Expression) *partialIndex[O]
• type BtreeIndexScanOptions
  • func CanSelectBtreeIndex(index impls.BaseIndex, filterExpression impls.Expression, ...) (_ impls.Index[BtreeIndexScanOptions], opts BtreeIndexScanOptions, _ bool)
  • func NewBtreeSearchOptions(values []any) BtreeIndexScanOptions
• type HashIndexScanOptions
  • func CanSelectHashIndex(index impls.BaseIndex, filterExpression impls.Expression) (_ impls.Index[HashIndexScanOptions], opts HashIndexScanOptions, _ bool)
• type ScanDirection

Functions

func NewBTreeIndex

func NewBTreeIndex(name, tableName string, unique bool, expressions []impls.ExpressionWithDirection) impls.Index[BtreeIndexScanOptions]

func NewHashIndex

func NewHashIndex(name, tableName string, expression impls.Expression) impls.Index[HashIndexScanOptions]

func NewPartialIndex

func NewPartialIndex[O impls.ScanOptions](index impls.Index[O], condition impls.Expression) *partialIndex[O]

Types

type BtreeIndexScanOptions

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

func CanSelectBtreeIndex

func CanSelectBtreeIndex(
	index impls.BaseIndex,
	filterExpression impls.Expression,
	order impls.OrderExpression,
) (_ impls.Index[BtreeIndexScanOptions], opts BtreeIndexScanOptions, _ bool)

func NewBtreeSearchOptions

func NewBtreeSearchOptions(values []any) BtreeIndexScanOptions

type HashIndexScanOptions

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

func CanSelectHashIndex

func CanSelectHashIndex(
	index impls.BaseIndex,
	filterExpression impls.Expression,
) (_ impls.Index[HashIndexScanOptions], opts HashIndexScanOptions, _ bool)

type ScanDirection

type ScanDirection int

const (
	ScanDirectionUnknown ScanDirection = iota
	ScanDirectionForward
	ScanDirectionBackward
)