{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/165300767","pull_request_review_id":93215004,"id":165300767,"diff_hunk":"@@ -1261,4 +1261,140 @@ class ColumnarBatchSuite extends SparkFunSuite {\n     batch.close()\n     allocator.close()\n   }\n+\n+  testVector(\"getUTF8String should return null for null slot\", 4, StringType) {","path":"sql/core/src/test/scala/org/apache/spark/sql/execution/vectorized/ColumnarBatchSuite.scala","position":5,"original_position":5,"commit_id":"35548e6d30211cf155a366da2ad736d1281367bf","original_commit_id":"35548e6d30211cf155a366da2ad736d1281367bf","user":{"login":"viirya","id":68855,"avatar_url":"https://avatars1.githubusercontent.com/u/68855?v=4","gravatar_id":"","url":"https://api.github.com/users/viirya","html_url":"https://github.com/viirya","followers_url":"https://api.github.com/users/viirya/followers","following_url":"https://api.github.com/users/viirya/following{/other_user}","gists_url":"https://api.github.com/users/viirya/gists{/gist_id}","starred_url":"https://api.github.com/users/viirya/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/viirya/subscriptions","organizations_url":"https://api.github.com/users/viirya/orgs","repos_url":"https://api.github.com/users/viirya/repos","events_url":"https://api.github.com/users/viirya/events{/privacy}","received_events_url":"https://api.github.com/users/viirya/received_events","type":"User","site_admin":false},"body":"Seems we don't have individual tests for binary type and decimal type?","created_at":"2018-02-01T09:39:38Z","updated_at":"2018-02-01T09:39:38Z","html_url":"https://github.com/apache/spark/pull/20455#discussion_r165300767","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/20455","author_association":"CONTRIBUTOR","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/165300767"},"html":{"href":"https://github.com/apache/spark/pull/20455#discussion_r165300767"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/20455"}},"in_reply_to_id":165292391},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/20455","id":166272627,"html_url":"https://github.com/apache/spark/pull/20455","diff_url":"https://github.com/apache/spark/pull/20455.diff","patch_url":"https://github.com/apache/spark/pull/20455.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/20455","number":20455,"state":"open","locked":false,"title":"[SPARK-23284][SQL] Document the behavior of several ColumnVector's get APIs when accessing null slot","user":{"login":"viirya","id":68855,"avatar_url":"https://avatars1.githubusercontent.com/u/68855?v=4","gravatar_id":"","url":"https://api.github.com/users/viirya","html_url":"https://github.com/viirya","followers_url":"https://api.github.com/users/viirya/followers","following_url":"https://api.github.com/users/viirya/following{/other_user}","gists_url":"https://api.github.com/users/viirya/gists{/gist_id}","starred_url":"https://api.github.com/users/viirya/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/viirya/subscriptions","organizations_url":"https://api.github.com/users/viirya/orgs","repos_url":"https://api.github.com/users/viirya/repos","events_url":"https://api.github.com/users/viirya/events{/privacy}","received_events_url":"https://api.github.com/users/viirya/received_events","type":"User","site_admin":false},"body":"## What changes were proposed in this pull request?\r\n\r\nFor some ColumnVector get APIs such as getDecimal, getBinary, getStruct, getArray, getInterval, getUTF8String, we should clearly document their behaviors when accessing null slot. They should return null in this case. Then we can remove null checks from the places using above APIs.\r\n\r\nFor the APIs of primitive values like getInt, getInts, etc., this also documents their behaviors when accessing null slots. Their returning values are undefined and can be anything.\r\n\r\n## How was this patch tested?\r\n\r\nAdded tests into 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