Github user gparai commented on a diff in the pull request:
https://github.com/apache/drill/pull/581#discussion_r81438806
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillOptiq.java
---
@@ -408,6 +411,12 @@ private LogicalExpression
getDrillFunctionFromOptiqCall(RexCall call) {
return first;
}
+ } else if (functionName.equals("to_date") ||
functionName.equals("to_time") || functionName.equals("to_timestamp")) {
+ // convert ansi date format string to joda according to session
option
+ OptionManager om = this.context.getPlannerSettings().getOptions();
+
if(ToDateFormats.valueOf(om.getOption(ExecConstants.TO_DATE_FORMAT).string_val.toUpperCase()).equals(ToDateFormats.ANSI))
{
+ args.set(1, FunctionCallFactory.createExpression("ansi_to_joda",
Arrays.asList(args.get(1))));
--- End diff --
What would happen if
drill.exec.fn.to_date_format = 'ansi'
query: select to_date(1234545, ansi_to_joda('dd-MM-YYYY')) from emp;
Would we get select to_date(1234545,
ansi_to_joda(ansi_to_joda('dd-MM-YYYY'))) from emp;?
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