Remove allFragments from PlanPrinter#formatFragment

[wenleix]

When stats and cost is displayed in #11268, allFragments is introduced to PlanPrinter#formatFragment since FragmentedPlanStatsCalculator and FragmentedPlanCostCalculator needs all fragments. It also changes the TypeProvider to use all variables in all fragments, looks like this change is by accident, see discussions in https://github.com/prestodb/presto/pull/11268/files#r462651639

Fragment stats and cost are now precomputed and stored in PlanFragment through #11511 . As a result, allFragments is not required any more by PlanPrinter#formatFragment.

cc @rschlussel

Test plan - Travis passed. Also spot check a plan for EXPLAIN (TYPE DISTRIBUTED) with multiple fragments to see that the stats look correct.

== NO RELEASE NOTE ==

[wenleix]

Travis is green! @rschlussel : does that mean we can remove allFragments now? 😃

[rschlussel]

Can you spot check a plan for EXPLAIN (TYPE DISTRIBUTED) with multiple fragments to see that the stats look correct? Otherwise looks good, thanks!

[wenleix]

@rschlussel : Yeah, EXPLAIN TYPE(DISTRIBUTED) looks good:

-- HiveQueryRunner, hive.tpch

SELECT
    l.shipmode,
    sum(case
        when o.orderpriority = '1-URGENT'
            OR o.orderpriority = '2-HIGH'
            then 1
        else 0
    end) as high_line_count,
    sum(case
        when o.orderpriority <> '1-URGENT'
            AND o.orderpriority <> '2-HIGH'
            then 1
        else 0
    end) AS low_line_count
FROM
    orders o,
    lineitem l
WHERE
    o.orderkey = l.orderkey
    AND l.shipmode in ('MAIL', 'SHIP')
    AND l.commitdate < l.receiptdate
    AND l.shipdate < l.commitdate
    AND l.receiptdate >= date '1994-01-01'
    AND l.receiptdate < date '1994-01-01' + interval '1' year
GROUP BY
    l.shipmode

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Fragment 0 [SINGLE]
     Output layout: [shipmode, sum, sum_5]
     Output partitioning: SINGLE []
     Stage Execution Strategy: UNGROUPED_EXECUTION
     - Output[shipmode, high_line_count, low_line_count] => [shipmode:varchar(10), sum:bigint, sum_5:bigint]
             high_line_count := sum
             low_line_count := sum_5
         - RemoteSource[1] => [shipmode:varchar(10), sum:bigint, sum_5:bigint]

 Fragment 1 [HASH]
     Output layout: [shipmode, sum, sum_5]
     Output partitioning: SINGLE []
     Stage Execution Strategy: UNGROUPED_EXECUTION
     - Project[projectLocality = LOCAL] => [shipmode:varchar(10), sum:bigint, sum_5:bigint]
         - Aggregate(FINAL)[shipmode][$hashvalue] => [shipmode:varchar(10), $hashvalue:bigint, sum:bigint, sum_5:bigint]
                 sum := "presto.default.sum"((sum_18))
                 sum_5 := "presto.default.sum"((sum_19))
             - LocalExchange[HASH][$hashvalue] (shipmode) => [shipmode:varchar(10), sum_18:bigint, sum_19:bigint, $hashvalue:bigint]
                 - RemoteSource[2] => [shipmode:varchar(10), sum_18:bigint, sum_19:bigint, $hashvalue_20:bigint]

 Fragment 2 [HASH]
     Output layout: [shipmode, sum_18, sum_19, $hashvalue_26]
     Output partitioning: HASH [shipmode][$hashvalue_26]
     Stage Execution Strategy: UNGROUPED_EXECUTION
     - Aggregate(PARTIAL)[shipmode][$hashvalue_26] => [shipmode:varchar(10), $hashvalue_26:bigint, sum_18:bigint, sum_19:bigint]
             sum_18 := "presto.default.sum"((expr_3))
             sum_19 := "presto.default.sum"((expr_4))
         - Project[projectLocality = LOCAL] => [shipmode:varchar(10), expr_3:bigint, expr_4:bigint, $hashvalue_26:bigint]
                 Estimates: {rows: 2000 (70.86kB), cpu: 6092392.49, memory: 54569.17, network: 525757.17}
                 expr_3 := CAST(SWITCH(BOOLEAN true, WHEN(((orderpriority) = (VARCHAR(15) 1-URGENT)) OR ((orderpriority) = (VARCHAR(15) 2-HIGH)), INTEGER 1), INTEGER 0) AS bigint)
                 expr_4 := CAST(SWITCH(BOOLEAN true, WHEN(((orderpriority) <> (VARCHAR(15) 1-URGENT)) AND ((orderpriority) <> (VARCHAR(15) 2-HIGH)), INTEGER 1), INTEGER 0) AS bigint)
                 $hashvalue_26 := combine_hash(BIGINT 0, COALESCE($operator$hash_code(shipmode), BIGINT 0))
             - InnerJoin[("orderkey" = "orderkey_0")][$hashvalue_21, $hashvalue_23] => [orderpriority:varchar(15), shipmode:varchar(10)]
                     Estimates: {rows: 2000 (44.33kB), cpu: 6019826.62, memory: 54569.17, network: 525757.17}
                     Distribution: PARTITIONED
                 - RemoteSource[3] => [orderkey:bigint, orderpriority:varchar(15), $hashvalue_21:bigint]
                 - LocalExchange[HASH][$hashvalue_23] (orderkey_0) => [orderkey_0:bigint, shipmode:varchar(10), $hashvalue_23:bigint]
                         Estimates: {rows: 2000 (53.29kB), cpu: 4170109.52, memory: 0.00, network: 54569.17}
                     - RemoteSource[4] => [orderkey_0:bigint, shipmode:varchar(10), $hashvalue_24:bigint]

 Fragment 3 [SOURCE]
     Output layout: [orderkey, orderpriority, $hashvalue_22]
     Output partitioning: HASH [orderkey][$hashvalue_22]
     Stage Execution Strategy: UNGROUPED_EXECUTION
     - ScanProject[table = TableHandle {connectorId='hive', connectorHandle='HiveTableHandle{schemaName=tpch, tableName=orders, analyzePartitionValues=Optional.empty}', layout='Optional[tpch.
             Estimates: {rows: 15000 (460.14kB), cpu: 336188.00, memory: 0.00, network: 0.00}/{rows: 15000 (460.14kB), cpu: 807376.00, memory: 0.00, network: 0.00}
             $hashvalue_22 := combine_hash(BIGINT 0, COALESCE($operator$hash_code(orderkey), BIGINT 0))
             LAYOUT: tpch.orders{}
             orderpriority := orderpriority:varchar(15):5:REGULAR
             orderkey := orderkey:bigint:0:REGULAR

[wenleix]

My bad, forgot to amend the commit message before merge (only update the PR title :( )