jayendra13 commented on code in PR #20864:
URL: https://github.com/apache/datafusion/pull/20864#discussion_r3124804246
##########
datafusion/sql/src/query.rs:
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@@ -215,6 +215,19 @@ impl<S: ContextProvider> SqlToRel<'_, S> {
PipeOperator::Join(join) => {
self.parse_relation_join(plan, join, planner_context)
}
+ PipeOperator::Drop { columns } => {
+ let Some((first, rest)) = columns.split_first() else {
+ return plan_err!("DROP requires at least one column");
Review Comment:
I think the
https://github.com/google/googlesql/blob/master/docs/pipe-syntax.md#drop-pipe-operator
makes `column_name` required (`|> DROP column_name [, ...]`), which would make
this a parse error rather than a planner error, feels like it belongs in
sqlparser-rs instead. Could you confirm I'm reading the spec right? If so, I'll
fold the parser fix into this PR.
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