Github user debugger87 commented on the issue:
    `createTime` is set by HiveMetaStore#initializeAddedPartition
    private void initializeAddedPartition(Table tbl, PartitionIterator part, 
boolean madeDir) throws MetaException {
          if(HiveConf.getBoolVar(this.hiveConf, ConfVars.HIVESTATSAUTOGATHER) 
&& !MetaStoreUtils.isView(tbl)) {
            MetaStoreUtils.updatePartitionStatsFast(part, this.wh, madeDir, 
          long time = System.currentTimeMillis() / 1000L;
          if(part.getParameters() == null || 
part.getParameters().get("transient_lastDdlTime") == null) {
            part.putToParameters("transient_lastDdlTime", Long.toString(time));
          // ignore code lines
    This PR should be closed and we will check the reason why createTime is 
zero for partitions created by spark sql again.

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