public void setNeedDupCopyCheck(boolean isFirstIncPending) {
    // Duplicate file check during copy is required until after first successful incremental load.
    // Check HIVE-21197 for more detail.
    this.needDupCopyCheck = isFirstIncPending;
  }
@return whether the current replication dumped object related to ACID/Mm table
ql/src/java/org/apache/hadoop/hive/ql/parse/ReplicationSpec.java