YiwenWu commented on code in PR #3830:
URL: https://github.com/apache/calcite/pull/3830#discussion_r1666777819


##########
site/_docs/reference.md:
##########
@@ -2850,6 +2850,7 @@ In the following:
 | b | REGEXP_SUBSTR(string, regexp [, position [, occurrence]]) | Synonym for 
REGEXP_EXTRACT
 | b m p s | REPEAT(string, integer)                  | Returns a string 
consisting of *string* repeated of *integer* times; returns an empty string if 
*integer* is less than 1
 | b m | REVERSE(string)                              | Returns *string* with 
the order of the characters reversed
+| s | REVERSE(string | array)                        | Returns *string* with 
the characters in reverse order or array with elements in reverse order

Review Comment:
   I do not think so, you can arbitrarily find a func with a string, and 
funcName(integer) is supported.
   <img width="273" alt="image" 
src="https://github.com/apache/calcite/assets/7956306/e45a312f-401c-400b-abef-2e5a7716dab3";>
   
   Implicit conversions are supported because 
`FamilyOperandTypeChecker#checkOperandTypes` is handled:
   <img width="663" alt="image" 
src="https://github.com/apache/calcite/assets/7956306/9ffe07d3-ff4b-4e24-8c52-459b3f04530f";>
   
   More references: [Design of Calcite Implicit Type 
Cast](https://docs.google.com/document/d/1g2RUnLXyp_LjUlO-wbblKuP5hqEu3a_2Mt2k4dh6RwU/edit#heading=h.bnu0wb9cokyk)



-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]

Reply via email to