sql: only create real spans when session tracing/sampling#61777

Merged

craig[bot] merged 2 commits intocockroachdb:masterfrom irfansharif:210309.tpccbench-stability

Mar 13, 2021

+63-53

Commits on Mar 12, 2021

sql: revert "sql: use stmt's span for exec stats propagation"
irfansharif
committed

Commits on Mar 13, 2021

sql: only create real spans when session tracing/sampling
irfansharif
committed