You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@drill.apache.org by "Parth Chandra (JIRA)" <ji...@apache.org> on 2017/02/03 00:56:52 UTC
[jira] [Created] (DRILL-5240) Parquet reader creates unnecessary
objects when checking for nullability in var length columns
Parth Chandra created DRILL-5240:
------------------------------------
Summary: Parquet reader creates unnecessary objects when checking for nullability in var length columns
Key: DRILL-5240
URL: https://issues.apache.org/jira/browse/DRILL-5240
Project: Apache Drill
Issue Type: Bug
Components: Storage - Parquet
Reporter: Parth Chandra
Assignee: Parth Chandra
In {{NullableVarLengthValuesColumn.java}} we have the following line of code:
{code}
currentValNull = variableWidthVector.getAccessor().getObject(valuesReadInCurrentPass) == null;
{code}
which creates an object to check nullability of every (nullable var char) value being read. This object creation is expensive and can be replaced with a simple check for the null bit.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)