[DOCS] Remove Wikipedia link from `SUM_OF_SQUARES` SQL function docs (#52398)

Removed the link to Wikipedia as the function is not calculating the sum of squares in this way. More can be found here at this issue:

https://github.com/elastic/elasticsearch/issues/50416
This commit is contained in:
jmceniery 2020-04-20 23:28:30 +09:30 committed by James Rodewig
parent 0df329dde7
commit 99409e8c95
1 changed files with 1 additions and 1 deletions

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@ -616,7 +616,7 @@ SUM_OF_SQUARES(field_name) <1>
*Description*:
Returns the https://en.wikipedia.org/wiki/Total_sum_of_squares[sum of squares] of input values in the field `field_name`.
Returns the sum of squares of input values in the field `field_name`.
["source","sql",subs="attributes,macros"]
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