Collect stats for primitive fields inside ROW column in Delta connector

[krvikash]

Description

Fixes: #17164

1. x ROW(a INT, b VARCHAR) -> Stats collected for { x.a, x.b }
2. x ROW(a INT, y ROW(b INT, c STRING)) -> Stats collected for { x.a, x.y.b, x.y.c }
3. x ROW(a INT, b ARRAY[INT], c MAP(INT, INT)) -> Stats collected for { x.a }
4. x ROW(a INT, y ROW(b INT, c ARRAY[INT], MAP(INT, INT))) -> Stats collected for { x.a, x.y.b }

Release notes

(X) Release notes are required, with the following suggested text:

# Delta
* Collect stats for primitive fields inside `row` ({issue}`17486`)

[krvikash]

@krvikash : TODO test stats collection for column mapping mode

[krvikash]

rebased and resolved conflicts

[krvikash]

(rebased and resolved conflicts)

[github-actions]

This pull request has gone a while without any activity. Tagging the Trino developer relations team: @bitsondatadev @colebow @mosabua

[mosabua]

👋 @krvikash - this PR has become inactive. We hope you are still interested in working on it. Please let us know, and we can try to get reviewers to help with that.

We're working on closing out old and inactive PRs, so if you're too busy or this has too many merge conflicts to be worth picking back up, we'll be making another pass to close it out in a few weeks.

[github-actions]

This pull request has gone a while without any activity. Tagging the Trino developer relations team: @bitsondatadev @colebow @mosabua

[github-actions]

Closing this pull request, as it has been stale for six weeks. Feel free to re-open at any time.