{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/35942907","id":35942907,"diff_hunk":"@@ -680,4 +680,57 @@ public int hashCode() {\n     }\n     return result;\n   }\n+\n+  /**\n+   * Soundex mapping table\n+   */\n+  private static final byte[] US_ENGLISH_MAPPING = {'0', '1', '2', '3', '0', '1', '2', '7',\n+    '0', '2', '2', '4', '5', '5', '0', '1', '2', '6', '2', '3', '0', '1', '7', '2', '0', '2'};\n+\n+  /**\n+   * Encodes a string into a Soundex value. Soundex is an encoding used to relate similar names,\n+   * but can also be used as a general purpose scheme to find word with similar phonemes.\n+   * https://en.wikipedia.org/wiki/Soundex\n+   */\n+  public UTF8String soundex() {\n+    if (numBytes == 0) {\n+      return EMPTY_UTF8;\n+    }\n+\n+    byte b = getByte(0);\n+    if ('a' <= b && b <= 'z') {\n+      b -= 32;\n+    } else if (b < 'A' || 'Z' < b) {\n+      // first character must be a letter\n+      return this;\n+    }\n+    byte sx[] = {'0', '0', '0', '0'};\n+    sx[0] = b;\n+    int sxi = 1;\n+    int idx = b - 'A';\n+    byte lastCode = US_ENGLISH_MAPPING[idx];\n+\n+    for (int i = 1; i < numBytes; i++) {\n+      b = getByte(i);\n+      if ('a' <= b && b <= 'z') {","path":"unsafe/src/main/java/org/apache/spark/unsafe/types/UTF8String.java","position":36,"original_position":36,"commit_id":"fa759410d272a3f4e902fe6e646194ae1e5dda69","original_commit_id":"fa759410d272a3f4e902fe6e646194ae1e5dda69","user":{"login":"HuJiayin","id":12150346,"avatar_url":"https://avatars.githubusercontent.com/u/12150346?v=3","gravatar_id":"","url":"https://api.github.com/users/HuJiayin","html_url":"https://github.com/HuJiayin","followers_url":"https://api.github.com/users/HuJiayin/followers","following_url":"https://api.github.com/users/HuJiayin/following{/other_user}","gists_url":"https://api.github.com/users/HuJiayin/gists{/gist_id}","starred_url":"https://api.github.com/users/HuJiayin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/HuJiayin/subscriptions","organizations_url":"https://api.github.com/users/HuJiayin/orgs","repos_url":"https://api.github.com/users/HuJiayin/repos","events_url":"https://api.github.com/users/HuJiayin/events{/privacy}","received_events_url":"https://api.github.com/users/HuJiayin/received_events","type":"User","site_admin":false},"body":"The current code has a problem. I encounter some Chinese word will have a byte which just equals to the number in a to z, and the Chinese word will many multiple bytes.","created_at":"2015-07-31T02:46:22Z","updated_at":"2015-07-31T02:46:22Z","html_url":"https://github.com/apache/spark/pull/7812#discussion_r35942907","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/7812","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/35942907"},"html":{"href":"https://github.com/apache/spark/pull/7812#discussion_r35942907"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/7812"}}},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/7812","id":41297743,"html_url":"https://github.com/apache/spark/pull/7812","diff_url":"https://github.com/apache/spark/pull/7812.diff","patch_url":"https://github.com/apache/spark/pull/7812.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/7812","number":7812,"state":"open","locked":false,"title":" [SPARK-8271][SQL]string function: soundex","user":{"login":"davies","id":40902,"avatar_url":"https://avatars.githubusercontent.com/u/40902?v=3","gravatar_id":"","url":"https://api.github.com/users/davies","html_url":"https://github.com/davies","followers_url":"https://api.github.com/users/davies/followers","following_url":"https://api.github.com/users/davies/following{/other_user}","gists_url":"https://api.github.com/users/davies/gists{/gist_id}","starred_url":"https://api.github.com/users/davies/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/davies/subscriptions","organizations_url":"https://api.github.com/users/davies/orgs","repos_url":"https://api.github.com/users/davies/repos","events_url":"https://api.github.com/users/davies/events{/privacy}","received_events_url":"https://api.github.com/users/davies/received_events","type":"User","site_admin":false},"body":"This PR brings SQL function soundex(), see https://issues.apache.org/jira/browse/HIVE-9738\r\n\r\nIt's based on #7115 , thanks to @HuJiayin 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