levenshtein
function
Applies to: Databricks SQL Databricks Runtime
Returns the Levenshtein distance between the strings str1
and str2
.
Syntax
levenshtein(str1, str2 [, maxDistance])
Arguments
str1
: ASTRING
expression.str2
: ASTRING
expression.maxDistance
: An optionalINTEGER
expression limiting the maximum Levenshtein distance considered. The default is unlimited.Applies to: Databricks SQL Databricks Runtime 13.3 LTS and later
Returns
An INTEGER
.
If maxDistance
is less than the distance between the two strings the function returns -1.
If maxDistance
is negative the function returns -1.
Examples
> SELECT levenshtein('kitten', 'sitting');
3
> SELECT levenshtein('kitten', 'sitting', 2);
-1
> SELECT levenshtein('kitten', 'sitting', 4);
3
Related functions
Feedback
https://aka.ms/ContentUserFeedback.
Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. For more information see:Submit and view feedback for