Print stats for each individual operator in EXPLAIN ANALYZE VERBOSE

[sopel39]

Example
 Fragment 2 [HASH]
     CPU: 41.22s, Scheduled: 1.08m, Blocked 2.61m (Input: 48.15s, Output: 0.00ns), Input: 119972104 rows (2.01GB); per task: avg.: 119972104.00 std.dev.: 0.00, Output: 8 rows (
     Output layout: [count_19]
     Output partitioning: SINGLE []
     Aggregate[type = PARTIAL]
     │   Layout: [count_19:bigint]
     │   CPU: 1.30s (1.92%), Scheduled: 2.00s (1.20%), Blocked: 0.00ns (0.00%), Output: 8 rows (72B)
     │   AggregationOperator metrics:
     │     'CPU time distribution (s)' = {count=8.00, p01=0.15, p05=0.15, p10=0.15, p25=0.15, p50=0.17, p75=0.18, p90=0.18, p95=0.18, p99=0.18, min=0.15, max=0.18}
     │     'Input rows distribution' = {count=8.00, p01=36809359.00, p05=36809359.00, p10=36809359.00, p25=37080874.00, p50=37387039.00, p75=38224448.00, p90=38731833.00, p95=3
     │     'Wall time distribution (s)' = {count=8.00, p01=0.20, p05=0.20, p10=0.20, p25=0.23, p50=0.27, p75=0.27, p90=0.32, p95=0.32, p99=0.32, min=0.20, max=0.32}
     │   TaskOutputOperator metrics:
     │     'CPU time distribution (s)' = {count=8.00, p01=0.00, p05=0.00, p10=0.00, p25=0.00, p50=0.00, p75=0.00, p90=0.00, p95=0.00, p99=0.00, min=0.00, max=0.00}
     │     'Input rows distribution' = {count=8.00, p01=1.00, p05=1.00, p10=1.00, p25=1.00, p50=1.00, p75=1.00, p90=1.00, p95=1.00, p99=1.00, min=1.00, max=1.00}
     │     'Wall time distribution (s)' = {count=8.00, p01=0.00, p05=0.00, p10=0.00, p25=0.00, p50=0.00, p75=0.00, p90=0.00, p95=0.00, p99=0.00, min=0.00, max=0.00}
     │   Input avg.: 37485342.50 rows, Input std.dev.: 1.71%
     │   count_19 := count("orderkey")
     └─ InnerJoin[criteria = ("orderkey" = "orderkey_0"), hash = [$hashvalue, $hashvalue_21], distribution = PARTITIONED]
        │   Layout: [orderkey:bigint]
        │   Reorder joins cost : {rows: 239034200 (2.00GB), cpu: 5.52G, memory: 514.86MB, network: 1.01GB}
        │   Estimates: {rows: 239034200 (2.00GB), cpu: 4.01G, memory: 1.01GB, network: 0B}
        │   CPU: 29.98s (44.16%), Scheduled: 43.86s (26.35%), Blocked: 1.20m (14.13%), Output: 299882740 rows (1.62GB)
        │   LookupJoinOperator metrics:
        │     'CPU time distribution (s)' = {count=8.00, p01=2.38, p05=2.38, p10=2.38, p25=2.42, p50=2.44, p75=2.50, p90=2.51, p95=2.51, p99=2.51, min=2.38, max=2.51}
        │     'Input rows distribution' = {count=8.00, p01=7363095.00, p05=7363095.00, p10=7363095.00, p25=7416595.00, p50=7479924.00, p75=7646558.00, p90=7746970.00, p95=77469
        │     'Wall time distribution (s)' = {count=8.00, p01=3.14, p05=3.14, p10=3.14, p25=3.19, p50=3.20, p75=3.26, p90=3.27, p95=3.27, p99=3.27, min=3.14, max=3.27}
        │   DynamicFilterSourceOperator metrics:
        │     'CPU time distribution (s)' = {count=8.00, p01=0.04, p05=0.04, p10=0.04, p25=0.04, p50=0.04, p75=0.04, p90=0.05, p95=0.05, p99=0.05, min=0.04, max=0.05}
        │     'Input rows distribution' = {count=8.00, p01=7489515.00, p05=7489515.00, p10=7489515.00, p25=7495257.00, p50=7496362.00, p75=7506635.00, p90=7510105.00, p95=75101
        │     'Wall time distribution (s)' = {count=8.00, p01=0.12, p05=0.12, p10=0.12, p25=0.14, p50=0.16, p75=0.19, p90=0.21, p95=0.21, p99=0.21, min=0.12, max=0.21}
        │   HashBuilderOperator metrics:
        │     'CPU time distribution (s)' = {count=8.00, p01=1.21, p05=1.21, p10=1.21, p25=1.23, p50=1.24, p75=1.32, p90=1.40, p95=1.40, p99=1.40, min=1.21, max=1.40}
        │     'Input rows distribution' = {count=8.00, p01=7489515.00, p05=7489515.00, p10=7489515.00, p25=7495257.00, p50=7496362.00, p75=7506635.00, p90=7510105.00, p95=75101
        │     'Wall time distribution (s)' = {count=8.00, p01=2.00, p05=2.00, p10=2.00, p25=2.04, p50=2.14, p75=2.21, p90=2.28, p95=2.28, p99=2.28, min=2.00, max=2.28}
        │   Left (probe) Input avg.: 7498256.50 rows, Input std.dev.: 1.72%
        │   Right (build) Input avg.: 7498256.50 rows, Input std.dev.: 0.09%
        │   Collisions avg.: 472153.48 (15.58% est.), Collisions std.dev.: 0.33%
        │   Distribution: PARTITIONED
        │   dynamicFilterAssignments = {orderkey_0 -> #df_401}

[raunaqmorarka]

This looks like it's increasing the verbosity of VERBOSE significantly.
If wonder if operator level details like this are too low level to be part of plan output even in verbose. Ideally even in verbose mode most of the things should be understandable and useful to end-users.
It would be great to at least provide an example or explanation of how to use this in explain-analyze.rst
Maybe this info belongs in web ui and event listener.

[sopel39]

Supreceded by #14572