Dong Chen created PARQUET-333:
---------------------------------
Summary: [Vectorizaed Reader] Add attributes in ColumnVector and
RowBatch
Key: PARQUET-333
URL: https://issues.apache.org/jira/browse/PARQUET-333
Project: Parquet
Issue Type: Sub-task
Reporter: Dong Chen
As discussed in HIVE-8128, we want to add some attributes in vector.
* In {{ColumnVector}}, add two attributes: one is {{boolean noNulls}}, which
indicates whether the whole column vector has no null value. The other is
{{boolean isRepeating}}, which indicates whether the same value repeats for
whole column vector. They could be calculated at the same time when we read a
vector. SQL engines (like Hive) can check these attribute to skip some values.
* In {{RowBatch}}, add one attribute {{int size}}, which indicates the number
of rows in this batch. This is just for easy usage. Its value should be the
same as {{RowBatch.columns\[0\].numValues}}.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
