50709: sql,execinfrapb: DistSQLPlanner and related changes for inverted join r=sumeerbhola a=sumeerbhola

Release note: None

50760: backupccl: fix formatting of backup jobs in jobs table r=pbardea a=pbardea

When adding cluster backup/restore, the method which generated the job
description was not updated to handle cluster backups. Previously, a
cluster backup job would appear in the jobs table as `BACKUP TABLE TO`
rather than `BACKUP TO`.

Release note (bug fix): Cluster backup would previously appear as
`BACKUP TABLE TO` rather than `BACKUP TO` in the jobs table.

50770: roachtest: update version map and create fixtures r=jlinder a=asubiotto

This commit adds the recently released 19.1.10, 19.2.8, and 20.1.3 to the
version map in PredecessorVersion.

Release note: None (testing change)

50815: opt: fix ResolvedType() for aggregateInfo in the optbuilder r=rytaft a=rytaft

Prior to this commit, it was possible that calling `ResolvedType()`
on an `aggregateInfo` object returned the wrong type. This was because
`aggregateInfo` did not implement `ResolvedType()`, and was therefore
passing the call to the embedded `tree.FuncExpr`, which may have been
stripped of its original type information. This commit fixes the
problem by adding an implementation of `ResolvedType()` to `aggregateInfo`,
which simply returns the type of the aggregation column represented by
the struct.

Fixes #46914

Release note (bug fix): Fixed an internal error that could happen
during planning for some queries with aggregate functions embedded in
complex scalar expressions.

Co-authored-by: sumeerbhola <sumeer@cockroachlabs.com>
Co-authored-by: Paul Bardea <pbardea@gmail.com>
Co-authored-by: Alfonso Subiotto Marques <alfonso@cockroachlabs.com>
Co-authored-by: Rebecca Taft <becca@cockroachlabs.com>