kazuyukitanimura commented on a change in pull request #34611: URL: https://github.com/apache/spark/pull/34611#discussion_r754552871
########## File path: sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/VectorizedPlainValuesReader.java ########## @@ -53,19 +53,47 @@ public void skip() { throw new UnsupportedOperationException(); } + private void updateCurrentByte() { + try { + currentByte = (byte) in.read(); + } catch (IOException e) { + throw new ParquetDecodingException("Failed to read a byte", e); + } + } + @Override public final void readBooleans(int total, WritableColumnVector c, int rowId) { - // TODO: properly vectorize this - for (int i = 0; i < total; i++) { - c.putBoolean(rowId + i, readBoolean()); + int i = 0; + if (bitOffset > 0) { + i = Math.min(8 - bitOffset, total); Review comment: I don't think we need to update the `total` here. Only the `i` gets updated. Any particular examples that you are worried? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org