LuciferYang commented on a change in pull request #31667:
URL: https://github.com/apache/spark/pull/31667#discussion_r584418998
##########
File path:
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/SpecificParquetRecordReaderBase.java
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@@ -227,6 +189,8 @@ protected void initialize(String path, List<String>
columns) throws IOException
}
}
this.sparkSchema = new
ParquetToSparkSchemaConverter(config).convert(requestedSchema);
+ // unfortunately we'd have to create the reader again since there is no
column projection
+ // in the new API.
this.reader = new ParquetFileReader(
Review comment:
Can we reuse the `ParquetFileReader ` create at line 166 and manual set
`requestedSchema ` ?
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