sunchao commented on a change in pull request #32753:
URL: https://github.com/apache/spark/pull/32753#discussion_r657286411
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File path:
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/VectorizedColumnReader.java
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@@ -294,6 +292,7 @@ private void initDataReader(Encoding dataEncoding,
ByteBufferInputStream in) thr
private void readPageV1(DataPageV1 page) throws IOException {
this.pageValueCount = page.getValueCount();
+ this.pageFirstRowIndex = page.getFirstRowIndex().orElse(0L);
Review comment:
yea it can return 0, in which case it is the same as without column
index and the whole page has to be read.
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