UnknownPartitionEvaluator.java

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package org.apache.doris.nereids.rules.expression.rules;

import org.apache.doris.catalog.PartitionItem;
import org.apache.doris.nereids.trees.expressions.Expression;
import org.apache.doris.nereids.trees.expressions.Slot;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;

import java.util.List;
import java.util.Map;

/** UnknownPartitionEvaluator */
public class UnknownPartitionEvaluator<K> implements OnePartitionEvaluator<K> {
    private final K partitionIdent;
    private final PartitionItem partitionItem;

    public UnknownPartitionEvaluator(K partitionId, PartitionItem partitionItem) {
        this.partitionIdent = partitionId;
        this.partitionItem = partitionItem;
    }

    @Override
    public K getPartitionIdent() {
        return partitionIdent;
    }

    @Override
    public List<Map<Slot, PartitionSlotInput>> getOnePartitionInputs() {
        return ImmutableList.of(ImmutableMap.of());
    }

    @Override
    public Expression evaluate(Expression expression, Map<Slot, PartitionSlotInput> currentInputs) {
        // do not prune
        return expression;
    }

    @Override
    public boolean isDefaultPartition() {
        return partitionItem.isDefaultPartition();
    }
}