[GitHub] [arrow-datafusion] comphead commented on a diff in pull request #6698: fix: parser for negative intervals

["comphead (via GitHub)" <gi...@apache.org>]

comphead commented on code in PR #6698:
URL: https://github.com/apache/arrow-datafusion/pull/6698#discussion_r1232456547


##########
datafusion/sql/src/expr/value.rs:
##########
@@ -199,7 +200,13 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
         let value = match value {
             SQLExpr::Value(
                 Value::SingleQuotedString(s) | Value::DoubleQuotedString(s),
-            ) => s,
+            ) => {
+                if negative {
+                    "-".to_owned() + &s

Review Comment:
   ```suggestion
                      format!("-{s}")
   ```



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