IMPALA-6627: [DOCS] Hive incompatibility with serialization.null.format Change-Id: Ic412c2fe2eba03d4493defee497656d6c74936f3 Reviewed-on: http://gerrit.cloudera.org:8080/9563 Reviewed-by: Alex Behm <alex.b...@cloudera.com> Tested-by: Impala Public Jenkins
Project: http://git-wip-us.apache.org/repos/asf/impala/repo Commit: http://git-wip-us.apache.org/repos/asf/impala/commit/8f8c61b9 Tree: http://git-wip-us.apache.org/repos/asf/impala/tree/8f8c61b9 Diff: http://git-wip-us.apache.org/repos/asf/impala/diff/8f8c61b9 Branch: refs/heads/2.x Commit: 8f8c61b990d12550f7593f9fe2573cbb650ae178 Parents: 8439107 Author: Alex Rodoni <arod...@cloudera.com> Authored: Thu Mar 8 19:11:50 2018 -0800 Committer: Impala Public Jenkins <impala-public-jenk...@gerrit.cloudera.org> Committed: Sat Mar 10 06:49:08 2018 +0000 ---------------------------------------------------------------------- docs/topics/impala_langref_unsupported.xml | 8 ++++++++ 1 file changed, 8 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/impala/blob/8f8c61b9/docs/topics/impala_langref_unsupported.xml ---------------------------------------------------------------------- diff --git a/docs/topics/impala_langref_unsupported.xml b/docs/topics/impala_langref_unsupported.xml index e1bcc68..effb1a8 100644 --- a/docs/topics/impala_langref_unsupported.xml +++ b/docs/topics/impala_langref_unsupported.xml @@ -185,6 +185,14 @@ under the License. with an Impala table. </li> </ul> + <p> + Impala respects the <codeph>serialization.null.format</codeph> table + property only for TEXT tables and ignores the property for Parquet and + other formats. Hive respects the <codeph>serialization.null.format</codeph> + property for Parquet and other formats and converts matching values + to NULL during the scan. See <xref keyref="text_data_files"/> for + using the table property in Impala. + </p> </conbody> </concept>
