expr

Sep 5, 2026

Changes in this version

+ type LazyRelationshipValue struct

+ func NewLazyRelationshipValue(id, startID, endID uint64, relType string, src RelSource, ...) *LazyRelationshipValue

+ func (v *LazyRelationshipValue) EndID() uint64

+ func (v *LazyRelationshipValue) Equal(other Value) Value

+ func (v *LazyRelationshipValue) Hash() uint64

+ func (v *LazyRelationshipValue) ID() uint64

+ func (v *LazyRelationshipValue) Kind() Kind

+ func (v *LazyRelationshipValue) Property(key string) Value

+ func (v *LazyRelationshipValue) RelType() string

+ func (v *LazyRelationshipValue) StartID() uint64

+ func (v *LazyRelationshipValue) String() string

+ type RelSource struct

+ ByHandle bool

+ EndKey string

+ Handle uint64

+ StartKey string

+ type RelationshipResolver interface

+ RelProperty func(src RelSource, key string) (Value, bool)

Aug 13, 2026

Changes in this version

+ type BoundedCountEvaluator interface

+ EvalCountBounded func(ctx context.Context, sub *ast.CountSubquery, row RowContext, ...) (Value, error)

+ type PatternCountEvaluator interface

+ CountPatternComp func(ctx context.Context, pc *ast.PatternComprehension, row RowContext) (Value, bool, error)

Jul 14, 2026

Changes in this version

+ const MaxValueDepth

+ func ExceedsValueDepth(v Value) bool

Jun 28, 2026

Changes in this version

+ type LazyNodeValue struct

+ func NewLazyNodeValue(id uint64, res NodeResolver) *LazyNodeValue

+ func (v *LazyNodeValue) Equal(other Value) Value

+ func (v *LazyNodeValue) HasLabel(label string) bool

+ func (v *LazyNodeValue) Hash() uint64

+ func (v *LazyNodeValue) ID() uint64

+ func (v *LazyNodeValue) Kind() Kind

+ func (v *LazyNodeValue) Property(key string) Value

+ func (v *LazyNodeValue) Reset(id uint64, res NodeResolver)

+ func (v *LazyNodeValue) String() string

+ type NodeResolver interface

+ HasNodeLabel func(id uint64, label string) bool

+ NodeProperty func(id uint64, key string) (Value, bool)

Jun 15, 2026

Changes in this version

+ const DefaultMaxStringEvalBytes

Jun 14, 2026

Changes in this version

+ const DefaultMaxListElements

+ func Equivalent(a, b Value) bool

+ func EquivalentHash(v Value) uint64

+ func HashRowEquivalent(row []Value) uint64

Jun 2, 2026

Changes in this version

+ func Compare(a, b Value) int

+ func HashRow(row []Value) uint64

+ func IsNull(v Value) bool

+ func IsTruthy(v Value) bool

+ type BoolValue bool

+ func (v BoolValue) Equal(other Value) Value

+ func (v BoolValue) Hash() uint64

+ func (v BoolValue) Kind() Kind

+ func (v BoolValue) String() string

+ type BuiltinFn func(args []Value) (Value, error)

+ type DateTimeValue struct

+ T time.Time

+ func AddDurationToDateTime(v DateTimeValue, d DurationValue) DateTimeValue

+ func NewDateTime(y, mo, d, h, mi, s, ns int, loc *time.Location) DateTimeValue

+ func ParseDateTime(s string) (DateTimeValue, error)

+ func SubDurationFromDateTime(v DateTimeValue, d DurationValue) DateTimeValue

+ func (v DateTimeValue) Equal(other Value) Value

+ func (v DateTimeValue) Hash() uint64

+ func (v DateTimeValue) Kind() Kind

+ func (v DateTimeValue) String() string

+ type DateValue struct

+ Day int

+ Month int

+ Year int

+ func AddDurationToDate(dv DateValue, d DurationValue) DateValue

+ func DateFromTime(t time.Time) DateValue

+ func NewDate(y, m, d int) DateValue

+ func ParseDate(s string) (DateValue, error)

+ func SubDurationFromDate(dv DateValue, d DurationValue) DateValue

+ func (v DateValue) Equal(other Value) Value

+ func (v DateValue) Hash() uint64

+ func (v DateValue) Kind() Kind

+ func (v DateValue) String() string

+ func (v DateValue) ToTime() time.Time

+ type DurationValue struct

+ Days int64

+ Months int64

+ Nanos int32

+ Seconds int64

+ func AddDurations(a, b DurationValue) DurationValue

+ func DivDurationFloat(d DurationValue, k float64) DurationValue

+ func MulDuration(d DurationValue, k int64) DurationValue

+ func MulDurationFloat(d DurationValue, k float64) DurationValue

+ func NegateDuration(d DurationValue) DurationValue

+ func NewDuration(months, days, seconds int64, nanos int32) DurationValue

+ func ParseDuration(s string) (DurationValue, error)

+ func SubDateTimes(a, b DateTimeValue) DurationValue

+ func SubDates(a, b DateValue) DurationValue

+ func SubDurations(a, b DurationValue) DurationValue

+ func SubLocalDateTimes(a, b LocalDateTimeValue) DurationValue

+ func SubLocalTimes(a, b LocalTimeValue) DurationValue

+ func SubTimes(a, b TimeValue) DurationValue

+ func (v DurationValue) Equal(other Value) Value

+ func (v DurationValue) Hash() uint64

+ func (v DurationValue) Kind() Kind

+ func (v DurationValue) String() string

+ type EvalError struct

+ Msg string

+ func (e *EvalError) Error() string

+ type FloatValue float64

+ func (v FloatValue) Equal(other Value) Value

+ func (v FloatValue) Hash() uint64

+ func (v FloatValue) Kind() Kind

+ func (v FloatValue) String() string

+ type FunctionRegistry interface

+ Resolve func(name string) (BuiltinFn, bool)

+ type IntegerValue int64

+ func (v IntegerValue) Equal(other Value) Value

+ func (v IntegerValue) Hash() uint64

+ func (v IntegerValue) Kind() Kind

+ func (v IntegerValue) String() string

+ type Kind uint8

+ const KindBool

+ const KindDate

+ const KindDateTime

+ const KindDuration

+ const KindFloat

+ const KindInteger

+ const KindList

+ const KindLocalDateTime

+ const KindLocalTime

+ const KindMap

+ const KindNode

+ const KindNull

+ const KindPath

+ const KindRelationship

+ const KindString

+ const KindTime

+ func (k Kind) String() string

+ type ListValue []Value

+ func (v ListValue) Equal(other Value) Value

+ func (v ListValue) Hash() uint64

+ func (v ListValue) Kind() Kind

+ func (v ListValue) String() string

+ type LocalDateTimeValue struct

+ T time.Time

+ func AddDurationToLocalDateTime(v LocalDateTimeValue, d DurationValue) LocalDateTimeValue

+ func NewLocalDateTime(y, mo, d, h, mi, s, ns int) LocalDateTimeValue

+ func ParseLocalDateTime(s string) (LocalDateTimeValue, error)

+ func SubDurationFromLocalDateTime(v LocalDateTimeValue, d DurationValue) LocalDateTimeValue

+ func (v LocalDateTimeValue) Equal(other Value) Value

+ func (v LocalDateTimeValue) Hash() uint64

+ func (v LocalDateTimeValue) Kind() Kind

+ func (v LocalDateTimeValue) String() string

+ type LocalTimeValue struct

+ Nanos int64

+ func AddDurationToLocalTime(v LocalTimeValue, d DurationValue) LocalTimeValue

+ func NewLocalTime(h, m, s, ns int) LocalTimeValue

+ func ParseLocalTime(s string) (LocalTimeValue, error)

+ func SubDurationFromLocalTime(v LocalTimeValue, d DurationValue) LocalTimeValue

+ func (v LocalTimeValue) Equal(other Value) Value

+ func (v LocalTimeValue) Hash() uint64

+ func (v LocalTimeValue) Kind() Kind

+ func (v LocalTimeValue) String() string

+ type MapValue map[string]Value

+ func (v MapValue) Equal(other Value) Value

+ func (v MapValue) Hash() uint64

+ func (v MapValue) Kind() Kind

+ func (v MapValue) String() string

+ type NodeValue struct

+ Deleted bool

+ ID uint64

+ Labels []string

+ Properties MapValue

+ func (v NodeValue) Equal(other Value) Value

+ func (v NodeValue) Hash() uint64

+ func (v NodeValue) Kind() Kind

+ func (v NodeValue) String() string

+ type PathValue struct

+ Nodes []NodeValue

+ Relationships []RelationshipValue

+ func (v PathValue) Equal(other Value) Value

+ func (v PathValue) Hash() uint64

+ func (v PathValue) Kind() Kind

+ func (v PathValue) String() string

+ type PatternEvaluator interface

+ EvalPattern func(ctx context.Context, pp *ast.PathPattern, row RowContext, ...) (Value, error)

+ EvalPatternComp func(ctx context.Context, pc *ast.PatternComprehension, row RowContext, ...) (Value, error)

+ type RelationshipValue struct

+ Deleted bool

+ EndID uint64

+ ID uint64

+ Properties MapValue

+ StartID uint64

+ Type string

+ func (v RelationshipValue) Equal(other Value) Value

+ func (v RelationshipValue) Hash() uint64

+ func (v RelationshipValue) Kind() Kind

+ func (v RelationshipValue) String() string

+ type RowContext map[string]Value

+ type StringValue string

+ func (v StringValue) Equal(other Value) Value

+ func (v StringValue) Hash() uint64

+ func (v StringValue) Kind() Kind

+ func (v StringValue) String() string

+ type SubqueryEvaluator interface

+ EvalCount func(ctx context.Context, sub *ast.CountSubquery, row RowContext, ...) (Value, error)

+ EvalExists func(ctx context.Context, sub *ast.ExistsSubquery, row RowContext, ...) (Value, error)

+ type TimeValue struct

+ Nanos int64

+ OffsetSec int32

+ func AddDurationToTime(v TimeValue, d DurationValue) TimeValue

+ func NewTime(h, m, s, ns, offsetSec int) TimeValue

+ func ParseTime(s string) (TimeValue, error)

+ func SubDurationFromTime(v TimeValue, d DurationValue) TimeValue

+ func (v TimeValue) Equal(other Value) Value

+ func (v TimeValue) Hash() uint64

+ func (v TimeValue) Kind() Kind

+ func (v TimeValue) String() string

+ type Value interface

+ Equal func(other Value) Value

+ Hash func() uint64

+ Kind func() Kind

+ String func() string

+ var Null Value = nullValue{}

+ func Eval(expr ast.Expression, row RowContext, params map[string]Value, ...) (Value, error)

+ func EvalWith(ctx context.Context, expr ast.Expression, row RowContext, ...) (Value, error)