sunchao commented on a change in pull request #34659:
URL: https://github.com/apache/spark/pull/34659#discussion_r829408672
##########
File path:
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/SpecificParquetRecordReaderBase.java
##########
@@ -103,9 +104,14 @@ public void initialize(InputSplit inputSplit,
TaskAttemptContext taskAttemptCont
fileReader.setRequestedSchema(requestedSchema);
String sparkRequestedSchemaString =
configuration.get(ParquetReadSupport$.MODULE$.SPARK_ROW_REQUESTED_SCHEMA());
- this.sparkSchema =
StructType$.MODULE$.fromString(sparkRequestedSchemaString);
+ StructType sparkRequestedSchema =
StructType$.MODULE$.fromString(sparkRequestedSchemaString);
+ ParquetToSparkSchemaConverter converter = new
ParquetToSparkSchemaConverter(configuration);
+ this.parquetColumn = converter.convertParquetColumn(requestedSchema,
Review comment:
I have the follow-up to skip creating these column vectors and reading
definition levels if unnecessary done
[here](https://github.com/sunchao/spark/commit/f968791635db1d679638511fc4ff01d2b1eccff0).
I can include it to the PR if it doesn't complicated the review :) cc
@sadikovi
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