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aggregator

package

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Versions in this module

v1

v1.0.2

Jul 10, 2026

Changes in this version

+ func ValidateAggregateType(aggType AggregateType) error

v1.0.1

Jul 9, 2026

v1.0.0

Jul 9, 2026

v0

v0.10.7

Jan 19, 2026

v0.10.6

Dec 20, 2025

v0.10.5

Dec 16, 2025

v0.10.4

Nov 15, 2025

v0.10.3

Aug 29, 2025

Changes in this version

+ const FirstValue

+ const HashMultiplier

+ const MaxExpressionDepth

+ const MaxFunctionNameLength

+ const PlaceholderPrefix

+ const PlaceholderSuffix

+ const PostAggregation

+ type AggregationFieldInfo struct

+ AggType AggregateType

+ FullCall string

+ FuncName string

+ InputField string

+ Placeholder string

+ func ParseComplexAggregationExpression(expr string) (aggFields []AggregationFieldInfo, exprTemplate string, err error)

+ type EnhancedGroupAggregator struct

+ func NewEnhancedGroupAggregator(groupFields []string, aggregationFields []AggregationField) *EnhancedGroupAggregator

+ func (ega *EnhancedGroupAggregator) AddPostAggregationExpression(outputField, originalExpr string, requiredFields []AggregationFieldInfo) error

+ func (ega *EnhancedGroupAggregator) GetResults() ([]map[string]interface{}, error)

+ type PostAggregationExpression struct

+ Expression string

+ OriginalExpr string

+ OutputField string

+ RequiredAggFields []string

+ func (pae *PostAggregationExpression) Evaluate(data map[string]interface{}) (interface{}, error)

+ type PostAggregationPlaceholder struct

+ func (p *PostAggregationPlaceholder) Add(value interface{})

+ func (p *PostAggregationPlaceholder) New() AggregatorFunction

+ func (p *PostAggregationPlaceholder) Result() interface{}

+ type PostAggregationProcessor struct

+ func NewPostAggregationProcessor() *PostAggregationProcessor

+ func (p *PostAggregationProcessor) AddExpression(outputField, originalExpr string, aggFields []string, exprTemplate string)

+ func (p *PostAggregationProcessor) ProcessResults(results []map[string]interface{}) ([]map[string]interface{}, error)

+ type WindowFunctionWrapper struct

+ func (w *WindowFunctionWrapper) Add(value interface{})

+ func (w *WindowFunctionWrapper) Clone() AggregatorFunction

+ func (w *WindowFunctionWrapper) New() AggregatorFunction

+ func (w *WindowFunctionWrapper) Reset()

+ func (w *WindowFunctionWrapper) Result() interface{}

v0.10.2

Aug 8, 2025

v0.10.1

Jul 30, 2025

v0.10.0

Jul 27, 2025

Changes in this version

+ const Avg

+ const ChangedCol

+ const Collect

+ const Count

+ const Deduplicate

+ const Expression

+ const HadChanged

+ const Lag

+ const LastValue

+ const Latest

+ const Max

+ const Median

+ const MergeAgg

+ const Min

+ const Percentile

+ const StdDev

+ const StdDevS

+ const Sum

+ const Var

+ const VarS

+ const WindowEnd

+ const WindowStart

+ func Register(name string, constructor func() AggregatorFunction)

+ type AggregateType = functions.AggregateType

+ type AggregationField struct

+ AggregateType AggregateType

+ InputField string

+ OutputAlias string

+ type Aggregator interface

+ Add func(data interface{}) error

+ GetResults func() ([]map[string]interface{}, error)

+ Put func(key string, val interface{}) error

+ RegisterExpression func(field, expression string, fields []string, ...)

+ Reset func()

+ type AggregatorFunction = functions.LegacyAggregatorFunction

+ func CreateBuiltinAggregator(aggType AggregateType) AggregatorFunction

+ type ContextAggregator = functions.ContextAggregator

+ type ExpressionAggregatorWrapper struct

+ func (w *ExpressionAggregatorWrapper) Add(value interface{})

+ func (w *ExpressionAggregatorWrapper) New() AggregatorFunction

+ func (w *ExpressionAggregatorWrapper) Result() interface{}

+ type ExpressionEvaluator struct

+ Expression string

+ Field string

+ Fields []string

+ type GroupAggregator struct

+ func NewGroupAggregator(groupFields []string, aggregationFields []AggregationField) *GroupAggregator

+ func (ga *GroupAggregator) Add(data interface{}) error

+ func (ga *GroupAggregator) GetResults() ([]map[string]interface{}, error)

+ func (ga *GroupAggregator) Put(key string, val interface{}) error

+ func (ga *GroupAggregator) RegisterExpression(field, expression string, fields []string, ...)

+ func (ga *GroupAggregator) Reset()