Colin Ma created HIVE-18211:
-------------------------------
Summary: Support to read multiple level definition for Map type in
Parquet file
Key: HIVE-18211
URL: https://issues.apache.org/jira/browse/HIVE-18211
Project: Hive
Issue Type: Sub-task
Reporter: Colin Ma
Assignee: Colin Ma
For the current implementation with VectorizedParquetRecordReader, only
following definition for map type is supported:
{code}
repeated group map (MAP_KEY_VALUE) {
required binary key (UTF8); optional binary value (UTF8);}
}
{code}
The implementation should support multiple level definition like:
{code}
optional group m1 (MAP) {
repeated group map (MAP_KEY_VALUE)
{required binary key (UTF8); optional binary value (UTF8);}
}
{code}
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