Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/993#discussion_r60358157
--- Diff:
tajo-core/src/main/java/org/apache/tajo/master/exec/QueryExecutor.java ---
@@ -327,6 +328,11 @@ public void execNonFromQuery(QueryContext
queryContext, Session session, String
LogicalRootNode rootNode = plan.getRootBlock().getRoot();
EvalContext evalContext = new EvalContext();
+
+ //Non From query should be session's time zone. e,g, select
to_char(now(), 'yyyy-MM-dd')
+ String timezoneId = queryContext.get(SessionVars.TIMEZONE);
--- End diff --
SessionVars.TIMEZONE is designed to be used only in client and master, and
QueryVars are disigned to use some variables during query execution. How about
adding a new configuration key for timezone to QueryVars?
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