040000 tree 199dfeffabccdef3b83ef9ef39e57ba1b9409cb6	addons
040000 tree 359e5d9516f65a84622effe608f9146bcfbd443c	cde
040000 tree c8e931b9da79e33637b6a955c5cff39014eb6a64	check
040000 tree b93c066dbb43b247b7a3d490a5dd9e47187e5e56	explain
040000 tree c74ce48bca7581e7b3782577388e9e4a660d1977	query
040000 tree 8d7edd4967c3ebb6751fd899419d7d20a9b20b23	searchStrategy
040000 tree c4011cd4a7ee2790b02c13b4f1807e2865485cde	statistics
040000 tree b22165c2e2989d79db7f40daea9444d3c267669a	testing
040000 tree 551f5deff3e7ce499ec79b6cedd2c16ec7000c88	utils