incubator-gluten [GLUTEN-7079][VL] Fix metrics for InputIteratorTransformer of broadcast exchange

What changes were proposed in this pull request?

Fix issue https://github.com/apache/incubator-gluten/issues/7079 collecting metrics for InputIteratorTransformer of broadcast exchange.

How was this patch tested?

UT added.

Sep 09 '24 08:09 ivoson

https://github.com/apache/incubator-gluten/issues/7079

Sep 09 '24 08:09 github-actions[bot]

Run Gluten Clickhouse CI

Sep 09 '24 08:09 github-actions[bot]

cc @zhztheplayer @ulysses-you can you please help review this PR? Thanks.

Sep 09 '24 08:09 ivoson

Run Gluten Clickhouse CI

Oct 08 '24 06:10 github-actions[bot]

Run Gluten Clickhouse CI

Oct 10 '24 02:10 github-actions[bot]

Hi @zhztheplayer, can you please take another look? I tried to make it share the same output row counts metrics from child plan and modified the previous output metrics as data being consumed which might sound more reasonable when the data got read multiple times.

Oct 10 '24 02:10 ivoson

gentle ping @zhztheplayer , can you please take another look? Thanks.

Oct 18 '24 02:10 ivoson

Run Gluten Clickhouse CI

Oct 22 '24 03:10 github-actions[bot]

@ivoson Do you want to show some screenshots on Spark UI about the difference made by this PR? Thanks.

Oct 30 '24 07:10 zhztheplayer

@ivoson Do you want to show some screenshots on Spark UI about the difference made by this PR? Thanks.

Sure, let me add some screenshots.

Updated PR description. cc @zhztheplayer

Oct 31 '24 04:10 ivoson