Dandandan commented on a change in pull request #288:
URL: https://github.com/apache/arrow-datafusion/pull/288#discussion_r630418124
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File path: datafusion/src/physical_plan/datetime_expressions.rs
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@@ -268,6 +268,13 @@ pub fn to_timestamp(args: &[ColumnarValue]) ->
Result<ColumnarValue> {
)
}
+/// now SQL function
+pub fn now(_: &[ColumnarValue]) -> Result<ColumnarValue> {
+ Ok(ColumnarValue::Scalar(ScalarValue::TimestampNanosecond(
+ Some(chrono::Utc::now().timestamp_nanos()),
Review comment:
Might also good to document this at the constant folding optimizer if we
don't use the timestamp here - that the pass is required for generating correct
queries.
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