superdiaodiao commented on code in PR #24773:
URL: https://github.com/apache/flink/pull/24773#discussion_r1599601719
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docs/data/sql_functions.yml:
##########
@@ -350,6 +350,17 @@ string:
- sql: LOCATE(string1, string2[, integer])
table: STRING1.locate(STRING2[, INTEGER])
description: Returns the position of the first occurrence of string1 in
string2 after position integer. Returns 0 if not found. Returns NULL if any of
arguments is NULL.
+ - sql: URL_DECODE(string)
+ table: STRING.urlDecode()
+ description:
+ Decodes a given string in 'application/x-www-form-urlencoded' format
using the UTF-8 encoding scheme, will be null if input is null.
+ If there is an issue with the decoding process, such as encountering an
illegal escape pattern, the function returns the original input value.
+ If the encoding scheme is not supported, an error will be reported.
Review Comment:
So should I construct a string encoded with UTF_16 to test? Actually I have
no idea of this, could you give me some advice? After all, I noticed that the
Calcite has no test on non UTF8.
Maybe we just keep it like Calcite does.
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