CheckAfterBind.java

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

import org.apache.doris.catalog.Type;
import org.apache.doris.nereids.exceptions.AnalysisException;
import org.apache.doris.nereids.rules.Rule;
import org.apache.doris.nereids.rules.RuleType;
import org.apache.doris.nereids.trees.expressions.Expression;
import org.apache.doris.nereids.trees.expressions.InSubquery;
import org.apache.doris.nereids.trees.plans.Plan;
import org.apache.doris.nereids.trees.plans.logical.LogicalHaving;

import com.google.common.collect.ImmutableList;

import java.util.List;
import java.util.Set;

/**
 * Check bound rule to check semantic correct after bounding of expression by Nereids.
 * Also give operator information without LOGICAL_
 * When we need to check original semantic of Having expression in sql, we need to check
 * here cause Having expression would be changed to Filter expression in analyze
 */
public class CheckAfterBind implements AnalysisRuleFactory {

    @Override
    public List<Rule> buildRules() {
        return ImmutableList.of(
            RuleType.CHECK_OBJECT_TYPE_ANALYSIS.build(
                logicalHaving().thenApply(ctx -> {
                    LogicalHaving<Plan> having = ctx.root;
                    checkHavingObjectTypeExpression(having);
                    return null;
                })
            )
        );
    }

    private void checkHavingObjectTypeExpression(LogicalHaving<Plan> having) {
        Set<Expression> havingConjuncts = having.getConjuncts();
        for (Expression predicate : havingConjuncts) {
            if (predicate instanceof InSubquery) {
                if (((InSubquery) predicate).getSubqueryOutput().getDataType().isObjectType()) {
                    throw new AnalysisException(Type.OnlyMetricTypeErrorMsg);
                }
            }
        }
    }
}