Github user cloud-fan commented on a diff in the pull request:
    --- Diff: 
    @@ -378,6 +380,47 @@ private[hive] class HiveClientImpl(
           val properties = Option(h.getParameters).map(_.asScala.toMap).orNull
    +      val excludedTableProperties = Set(
    +        // The following are hive-generated statistics fields. Currently, 
only total_size and
    +        // row_count are used to populate the dedicated field `stats`.
    +        // TODO: stats should include all the other three fields.
    +        StatsSetupConst.COLUMN_STATS_ACCURATE,
    +        StatsSetupConst.NUM_FILES,
    +        StatsSetupConst.NUM_PARTITIONS,
    +        StatsSetupConst.ROW_COUNT,
    +        StatsSetupConst.RAW_DATA_SIZE,
    --- End diff --
    ah I see. So our targets are:
    1. recognize hive statistics, i.e. we should set the `CatalogTable.stats` 
according to hive stats properties
    2. don't overwrite hive stats properties.
    3. SHOW CREATE TABLE shouldn't print hive stats properties.
    My proposal: In `HiveClientImpl`, set `CatalogTable.stats` by hive stats 
properties, and still keep them in table properties. In SHOW CREATE TABLE, hide 
the hive stats properties.

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