org.apache.hudi.source.stats

Class ExpressionEvaluator

java.lang.Object

org.apache.hudi.source.stats.ExpressionEvaluator

public class ExpressionEvaluator
extends Object

Tool to evaluate the ResolvedExpressions.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ExpressionEvaluator.And To evaluate AND expr.
static class	ExpressionEvaluator.EqualTo To evaluate = expr.
static class	ExpressionEvaluator.Evaluator Used for deciding whether the literal values match the column stats.
static class	ExpressionEvaluator.GreaterThan To evaluate > expr.
static class	ExpressionEvaluator.GreaterThanOrEqual To evaluate >= expr.
static class	ExpressionEvaluator.In To evaluate IN expr.
static class	ExpressionEvaluator.IsNotNull To evaluate IS NOT NULL expr.
static class	ExpressionEvaluator.IsNull To evaluate IS NULL expr.
static class	ExpressionEvaluator.LessThan To evaluate < expr.
static class	ExpressionEvaluator.LessThanOrEqual To evaluate <= expr.
static class	ExpressionEvaluator.Not To evaluate NOT expr.
static class	ExpressionEvaluator.NotEqualTo To evaluate <> expr.
static class	ExpressionEvaluator.Or To evaluate OR expr.

Constructor Summary

Constructors

Constructor and Description
ExpressionEvaluator()

Method Summary

Modifier and Type	Method and Description
static boolean	filterExprs(List<org.apache.flink.table.expressions.ResolvedExpression> filters, org.apache.flink.table.data.RowData indexRow, org.apache.flink.table.types.logical.RowType.RowField[] queryFields) Filter the index row with specific data filters and query fields.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExpressionEvaluator

public ExpressionEvaluator()

Method Detail

filterExprs

public static boolean filterExprs(List<org.apache.flink.table.expressions.ResolvedExpression> filters,
                                  org.apache.flink.table.data.RowData indexRow,
                                  org.apache.flink.table.types.logical.RowType.RowField[] queryFields)

Filter the index row with specific data filters and query fields.

Parameters:

filters - The pushed down data filters

indexRow - The index row

queryFields - The query fields referenced by the filters

Returns:

true if the index row should be considered as a candidate