Github user debugger87 commented on the issue:
https://github.com/apache/spark/pull/18900
`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,
false);
}
long time = System.currentTimeMillis() / 1000L;
part.setCreateTime((long)((int)time));
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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