IcebergDmlCommandUtils.java

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package org.apache.doris.nereids.trees.plans.commands;

import org.apache.doris.datasource.iceberg.IcebergExternalTable;
import org.apache.doris.nereids.exceptions.AnalysisException;

import org.apache.iceberg.RowLevelOperationMode;
import org.apache.iceberg.TableProperties;

import java.util.Map;

/**
 * Helpers for Iceberg row-level DML commands.
 */
final class IcebergDmlCommandUtils {
    private IcebergDmlCommandUtils() {
    }

    static void checkDeleteMode(IcebergExternalTable table) {
        checkNotCopyOnWrite(table, "DELETE", TableProperties.DELETE_MODE,
                TableProperties.DELETE_MODE_DEFAULT);
    }

    static void checkUpdateMode(IcebergExternalTable table) {
        checkNotCopyOnWrite(table, "UPDATE", TableProperties.UPDATE_MODE,
                TableProperties.UPDATE_MODE_DEFAULT);
    }

    static void checkMergeMode(IcebergExternalTable table) {
        checkNotCopyOnWrite(table, "MERGE INTO", TableProperties.MERGE_MODE,
                TableProperties.MERGE_MODE_DEFAULT);
    }

    private static void checkNotCopyOnWrite(IcebergExternalTable table, String operation,
            String modeProperty, String defaultMode) {
        Map<String, String> properties = table.getIcebergTable().properties();
        String mode = properties.getOrDefault(modeProperty, defaultMode);
        if (RowLevelOperationMode.COPY_ON_WRITE.modeName().equalsIgnoreCase(mode)) {
            throw new AnalysisException(String.format(
                    "Doris does not support %s on Iceberg copy-on-write tables. "
                            + "Set table property '%s' to 'merge-on-read'.",
                    operation, modeProperty));
        }
    }
}