sabir-akhadov-localstack commented on code in PR #2680:
URL: 
https://github.com/apache/datafusion-sqlparser-rs/pull/2680#discussion_r4313192768


##########
src/parser/mod.rs:
##########
@@ -4481,6 +4481,19 @@ impl<'a> Parser<'a> {
             let array_expr = self.parse_expr()?;
             self.expect_token(&Token::RParen)?;
             InTarget::Unnest(Box::new(array_expr))
+        } else if !global
+            && self.dialect.supports_in_table_expression()
+            && matches!(self.peek_token_ref().token, Token::Word(_))

Review Comment:
   Any word is taken as the table name, so `SELECT 1 IN FROM t` parses and 
round-trips to `SELECT 1 IN FROM AS t`. Worth the same reserved-keyword check 
as the table factor position (`is_table_factor`, cf. #2633).



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