raminqaf commented on code in PR #28456:
URL: https://github.com/apache/flink/pull/28456#discussion_r3416210462
##########
docs/data/sql_functions.yml:
##########
@@ -1611,6 +1611,14 @@ aggregate:
`(NUMERIC: INTEGER_NUMERIC, FLOAT, DOUBLE, DECIMAL)`
Returns a `DOUBLE` if percentage is numeric, or an `ARRAY<DOUBLE>` if
percentage is an array. `NULL` if percentage is an empty array.
+ - sql: SINGLE_VALUE(expression)
+ description: |
+ Returns a single value of the expression within a group.
Review Comment:
A tiny example always helps to understand the function better.
##########
docs/data/sql_functions.yml:
##########
@@ -1611,6 +1611,14 @@ aggregate:
`(NUMERIC: INTEGER_NUMERIC, FLOAT, DOUBLE, DECIMAL)`
Returns a `DOUBLE` if percentage is numeric, or an `ARRAY<DOUBLE>` if
percentage is an array. `NULL` if percentage is an empty array.
+ - sql: SINGLE_VALUE(expression)
Review Comment:
Thanks for adding this. Could you please mirror this into the Chinese docs
too? No need to translate them
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