parse
ALTER DATABASE db ALTER LOCALITY REGIONAL CONFIGURE ZONE USING num_replicas = 9
----
ALTER DATABASE db ALTER LOCALITY REGIONAL CONFIGURE ZONE USING num_replicas = 9
ALTER DATABASE db ALTER LOCALITY REGIONAL CONFIGURE ZONE USING num_replicas = (9) -- fully parenthesized
ALTER DATABASE db ALTER LOCALITY REGIONAL CONFIGURE ZONE USING num_replicas = _ -- literals removed
ALTER DATABASE _ ALTER LOCALITY REGIONAL CONFIGURE ZONE USING _ = 9 -- identifiers removed

parse
ALTER DATABASE db ALTER LOCALITY REGIONAL IN "ca-central-1" CONFIGURE ZONE USING
  lease_preferences = '[[+region=ca-central-1], [+region=ap-southeast-2]]'
----
ALTER DATABASE db ALTER LOCALITY REGIONAL IN "ca-central-1" CONFIGURE ZONE USING lease_preferences = '[[+region=ca-central-1], [+region=ap-southeast-2]]' -- normalized!
ALTER DATABASE db ALTER LOCALITY REGIONAL IN "ca-central-1" CONFIGURE ZONE USING lease_preferences = ('[[+region=ca-central-1], [+region=ap-southeast-2]]') -- fully parenthesized
ALTER DATABASE db ALTER LOCALITY REGIONAL IN "ca-central-1" CONFIGURE ZONE USING lease_preferences = '_' -- literals removed
ALTER DATABASE _ ALTER LOCALITY REGIONAL IN _ CONFIGURE ZONE USING _ = '[[+region=ca-central-1], [+region=ap-southeast-2]]' -- identifiers removed

parse
ALTER DATABASE db ALTER LOCALITY GLOBAL CONFIGURE ZONE USING
  num_replicas = 6,
  num_voters = 6,
  lease_preferences = '[[+region=ca-central-1], [+region=ap-southeast-2], [+region=us-east-1]]'
----
ALTER DATABASE db ALTER LOCALITY GLOBAL CONFIGURE ZONE USING num_replicas = 6, num_voters = 6, lease_preferences = '[[+region=ca-central-1], [+region=ap-southeast-2], [+region=us-east-1]]' -- normalized!
ALTER DATABASE db ALTER LOCALITY GLOBAL CONFIGURE ZONE USING num_replicas = (6), num_voters = (6), lease_preferences = ('[[+region=ca-central-1], [+region=ap-southeast-2], [+region=us-east-1]]') -- fully parenthesized
ALTER DATABASE db ALTER LOCALITY GLOBAL CONFIGURE ZONE USING num_replicas = _, num_voters = _, lease_preferences = '_' -- literals removed
ALTER DATABASE _ ALTER LOCALITY GLOBAL CONFIGURE ZONE USING _ = 6, _ = 6, _ = '[[+region=ca-central-1], [+region=ap-southeast-2], [+region=us-east-1]]' -- identifiers removed

parse
ALTER DATABASE db ALTER LOCALITY GLOBAL CONFIGURE ZONE DISCARD
----
ALTER DATABASE db ALTER LOCALITY GLOBAL CONFIGURE ZONE DISCARD
ALTER DATABASE db ALTER LOCALITY GLOBAL CONFIGURE ZONE DISCARD -- fully parenthesized
ALTER DATABASE db ALTER LOCALITY GLOBAL CONFIGURE ZONE DISCARD -- literals removed
ALTER DATABASE _ ALTER LOCALITY GLOBAL CONFIGURE ZONE DISCARD -- identifiers removed
