Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/10908#discussion_r51031983
--- Diff:
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/VectorizedPlainValuesReader.java
---
@@ -52,15 +55,49 @@ public void skip(int n) {
}
@Override
- public void readIntegers(int total, ColumnVector c, int rowId) {
+ public final void readIntegers(int total, ColumnVector c, int rowId) {
c.putIntsLittleEndian(rowId, total, buffer, offset -
Platform.BYTE_ARRAY_OFFSET);
offset += 4 * total;
}
@Override
- public int readInteger() {
+ public final void readLongs(int total, ColumnVector c, int rowId) {
+ c.putLongsLittleEndian(rowId, total, buffer, offset -
Platform.BYTE_ARRAY_OFFSET);
+ offset += 8 * total;
+ }
+
+ @Override
+ public final void readBytes(int total, ColumnVector c, int rowId) {
+ c.putBytes(rowId, total, buffer, offset - Platform.BYTE_ARRAY_OFFSET);
--- End diff --
ByteType should be INT32 in parquet, 4 bytes per SQL Byte
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