difin commented on code in PR #6834:
URL: https://github.com/apache/hive/pull/6834#discussion_r4320743102
##########
ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java:
##########
@@ -12418,6 +12396,37 @@ private void setupStats(TableScanDesc tsDesc,
QBParseInfo qbp, Table tab, String
}
}
+ private void setupStatsGathering(TableScanDesc tsDesc, Table tab, String
alias, RowResolver rwsch) {
+ if (HiveConf.getVar(conf,
HIVE_STATS_DBCLASS).equalsIgnoreCase(StatDB.fs.name())) {
+ String statsTmpLoc =
ctx.getTempDirForInterimJobPath(tab.getPath()).toString();
+ LOG.debug("Set stats collection dir : " + statsTmpLoc);
+ tsDesc.setTmpStatsDir(statsTmpLoc);
+ }
+ tsDesc.setGatherStats(true);
+
tsDesc.setStatsReliable(conf.getBoolVar(HiveConf.ConfVars.HIVE_STATS_RELIABLE));
+
+ // append additional virtual columns for storing statistics
+ Iterator<VirtualColumn> vcs =
VirtualColumn.getStatsRegistry(conf).iterator();
+ List<VirtualColumn> vcList = new ArrayList<VirtualColumn>();
Review Comment:
This is redundant, could just be `List<VirtualColumn> vcList = new
ArrayList<>();`
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