MartijnVisser commented on a change in pull request #18251:
URL: https://github.com/apache/flink/pull/18251#discussion_r777500809
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File path: docs/data/sql_functions.yml
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@@ -357,8 +357,10 @@ string:
description: Returns the reversed string. Returns NULL if string is NULL.
- sql: SPLIT_INDEX(string1, string2, integer1)
description: Splits string1 by the delimiter string2, returns the
integerth (zero-based) string of the split strings. Returns NULL if integer is
negative. Returns NULL if any of arguments is NULL.
- - sql: STR_TO_MAP(string1[, string2, string3]])
- description: Returns a map after splitting the string1 into key/value
pairs using delimiters. string2 is the pair delimiter, default is ','. And
string3 is the key-value delimiter, default is '='.
+ - sql: STR_TO_MAP(string1[, string2, string3])
+ description: |
+ Returns a map after splitting the string1 into key/value pairs using
delimiters. string2 is the pair delimiter, default is ','. And string3 is the
key-value delimiter, default is '='.
+ Both pair delimiter and key-value delimiter are treated as regular
expressions.
Review comment:
I think it makes sense to mention that, for example, if you want to use
a pipe symbol as a delimiter, this means that you need to escape this
character?
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