snuyanzin commented on code in PR #26091:
URL: https://github.com/apache/flink/pull/26091#discussion_r1935576588
##########
docs/data/sql_functions.yml:
##########
@@ -241,9 +241,9 @@ arithmetic:
- sql: UNHEX(expr)
table: expr.unhex()
description: |
- Converts hexadecimal string expr to BINARY.
+ Converts hexadecimal string expr to BINARY. If the length of expr is
odd, the first character is discarded and the result is left padded with a null
byte.
- If the length of expr is odd, the first character is discarded and the
result is left padded with a null byte.
+ E.g., SELECT UNHEX('466C696E6B') or $('466C696E6B').unhex() returns
466C696E6B as BINARY.
Review Comment:
usually we should update both english and chinese docs
can you also add examples there (could be in english for now however it is
better to keep them sync)
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