xueyumusic commented on a change in pull request #7950: Add array_slice and array_unshift function expr URL: https://github.com/apache/incubator-druid/pull/7950#discussion_r296998840
########## File path: docs/content/misc/math-expr.md ########## @@ -179,6 +179,8 @@ See javadoc of java.lang.Math for detailed explanation for each function. | `array_concat(arr1,arr2)` | concatenates 2 arrays, the resulting array type determined by the type of the first array | | `array_to_string(arr,str)` | joins all elements of arr by the delimiter specified by str | | `string_to_array(str1,str2)` | splits str1 into an array on the delimiter specified by str2 | +| `array_slice(arr,start,end)` | return the subarray of arr from the 0 based index start(inclusive) to end(exclusive), or `null` if start is less than 0 or greater then length of arr or less than end| +| `array_unshift(arr1,expr)` | adds expr to arr at the beginning, the resulting array type determined by the type of the first array | Review comment: Thanks for review, @clintropolis ,I think that makes sense following pg way. I updated the codes. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@druid.apache.org For additional commands, e-mail: commits-h...@druid.apache.org
