040000 tree 49dc59d93edd0cce694feef236eddb0a5fccd1dc	catalog
040000 tree 55e6a876197a3acc90ba14049c4a0b319811b2f4	commands
040000 tree 7c3976ce3ee9ea84b8762ec3484a81b2e62c9330	executor
040000 tree 9483fec161879ace25bbd70ae84f418004a50df2	nodes
040000 tree cac7f6a8c0baff561950d82e0973bfeeb3932fe8	optimizer
040000 tree 9ccd2cbfecbed38ab4476d62bfe012ed917ecd21	parser
040000 tree 3087f54b504a3989237a8e8452234a701044751f	utils