ParquetRecordWriter does not provide interface like getRowCount(),getRawDataSize() like org.apache.orc.Writer

Hive with orc can update the statistics like rowCount,rawDataSize after loading data to table. Hive with parquet cannot and need to use analyze command like "analyze table xxx compute statistics noscan" to update these two statistics info. The reason is ParquetRecordWriter used in hive does not provide interfaces like getRowCount(),getRawDataSize(). While org.apache.orc.Writer provides these [two interfaces](https://github.com/apache/orc/blob/master/java/core/src/java/org/apache/orc/Writer.java#L68 ). Anyone knows how to get rowCount and rawDataSize in ParquetRecordWriter?

**Reporter**: [liyunzhang](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=kellyzly)

_{**Note**: *This issue was originally created as [PARQUET-1117](https://issues.apache.org/jira/browse/PARQUET-1117). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}

Inizia individuando ParquetRecordWriter in questo repository e confrontando le interfacce disponibili con i riferimenti a org.apache.orc.Writer collegati nell’issue. Verifica come Hive ottiene attualmente rowCount e rawDataSize, quindi conferma che le statistiche richieste possono essere esposte senza richiedere il comando analyze table indicato.

Scritto dal modello di indicizzazione a partire dal testo della issue.