liyunzhang_intel created HIVE-17634:
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Summary: Use properties from HiveConf in
RelOptHiveTable#updateColStats
Key: HIVE-17634
URL: https://issues.apache.org/jira/browse/HIVE-17634
Project: Hive
Issue Type: Bug
Reporter: liyunzhang_intel
in
[RelOptHiveTable#updateColStats|https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/RelOptHiveTable.java#L309],
we set {{fetchColStats}},{{fetchPartStats}} as true when call
{{StatsUtils.collectStatistics}}
{code}
if (!hiveTblMetadata.isPartitioned()) {
// 2.1 Handle the case for unpartitioned table.
try {
Statistics stats = StatsUtils.collectStatistics(hiveConf, null,
hiveTblMetadata, hiveNonPartitionCols,
nonPartColNamesThatRqrStats,
colStatsCached, nonPartColNamesThatRqrStats, true, true);
...
{code}
This will cause querying columns statistic from metastore even we set
{{hive.stats.fetch.column.stats}} and {{hive.stats.fetch.partition.stats}} as
false in HiveConf. If we these two properties as false, we can not any column
statistics from metastore. Suggest to set the properties from HiveConf.
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