Package dev.frostlake.executor.operators

package dev.frostlake.executor.operators
  • Class
    Description
    AggregateEvaluator
    Interface for evaluating a SELECT-list item (aggregate or grouped projection) on a group of rows, identified by its position in the operator's select-expression list (not by text).
    AsofJoinOperator
    Snowflake ASOF JOIN: for every left row, the single CLOSEST right row that satisfies the MATCH_CONDITION — the newest right row at or before the left row's timestamp, and the mirror-image for the < / <= directions.
    GroupByOperator
    GROUP BY operator - groups rows and computes aggregates.
    HavingEvaluator
    Custom evaluator interface for HAVING conditions.
    HavingOperator
    HAVING clause operator - filters rows after GROUP BY based on aggregate conditions.
    JoinConditionEvaluator
    Interface for evaluating join conditions on pairs of rows.
    JoinOperator
    JOIN operator - joins two sets of rows based on a condition.
    JoinType
    Type of join operation
    LimitOperator
    LIMIT operator - restricts the number of rows returned.
    Operator
    Base interface for query execution operators.
    OperatorContext
    Context object passed through the operator pipeline.
    OperatorContextBuilder
     
    OperatorPipeline
    Pipeline of operators for query execution.
    OperatorPipelineBuilder
     
    ProjectOperator
    PROJECT operator - projects (selects) specific columns from rows.
    QualifyEvaluator
    Custom evaluator interface for QUALIFY conditions.
    QualifyOperator
    QUALIFY clause operator - filters rows based on window function results.
    ResultSetProvider
    Interface for providing ResultSets.
    RowExpressionEvaluator
    Interface for evaluating a parsed expression AST on a row.
    TableFunctionOperator
    TABLE FUNCTION operator - executes table-valued functions.
    WhereEvaluationMode
    Evaluation mode for WHERE clause operator
    WhereOperator
    WHERE clause operator - filters rows based on a predicate expression.