MvccSnapshot.java

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package org.apache.doris.datasource.mvcc;

/**
 * The snapshot information of mvcc is defined by each table,
 * but it should be ensured that the table information queried through this snapshot remains unchanged
 */
public interface MvccSnapshot {
    /**
     * Whether two independently resolved wrappers identify the same immutable metadata state.
     */
    default boolean isSameSnapshot(MvccSnapshot other) {
        // Unknown implementations remain identity-conservative so optimizer rewrites cannot
        // merge scans unless the provider exposes a stable snapshot identity.
        return this == other;
    }
}