diff --git a/client/controller/sample_output/rds_postgres/knobs.json b/client/controller/sample_output/rds_postgres/knobs.json
new file mode 100644
index 0000000..2ffdc48
--- /dev/null
+++ b/client/controller/sample_output/rds_postgres/knobs.json
@@ -0,0 +1,310 @@
+{
+ "global": {"global": {
+  "DateStyle": "ISO, MDY",
+  "IntervalStyle": "postgres",
+  "TimeZone": "Etc/UTC",
+  "allow_system_table_mods": "off",
+  "application_name": "",
+  "archive_command": "(disabled)",
+  "archive_mode": "off",
+  "archive_timeout": "5min",
+  "array_nulls": "on",
+  "authentication_timeout": "1min",
+  "autovacuum": "on",
+  "autovacuum_analyze_scale_factor": "0.05",
+  "autovacuum_analyze_threshold": "50",
+  "autovacuum_freeze_max_age": "200000000",
+  "autovacuum_max_workers": "3",
+  "autovacuum_multixact_freeze_max_age": "400000000",
+  "autovacuum_naptime": "15s",
+  "autovacuum_vacuum_cost_delay": "20ms",
+  "autovacuum_vacuum_cost_limit": "600",
+  "autovacuum_vacuum_scale_factor": "0.1",
+  "autovacuum_vacuum_threshold": "50",
+  "autovacuum_work_mem": "-1",
+  "backend_flush_after": "0",
+  "backslash_quote": "safe_encoding",
+  "bgwriter_delay": "200ms",
+  "bgwriter_flush_after": "512kB",
+  "bgwriter_lru_maxpages": "100",
+  "bgwriter_lru_multiplier": "2",
+  "block_size": "8192",
+  "bonjour": "off",
+  "bonjour_name": "",
+  "bytea_output": "hex",
+  "check_function_bodies": "on",
+  "checkpoint_completion_target": "0.403",
+  "checkpoint_flush_after": "256kB",
+  "checkpoint_timeout": "5min",
+  "checkpoint_warning": "30s",
+  "client_encoding": "UTF8",
+  "client_min_messages": "notice",
+  "cluster_name": "",
+  "commit_delay": "0",
+  "commit_siblings": "5",
+  "config_file": "/rdsdbdata/config/postgresql.conf",
+  "constraint_exclusion": "partition",
+  "cpu_index_tuple_cost": "0.005",
+  "cpu_operator_cost": "0.0025",
+  "cpu_tuple_cost": "0.01",
+  "cursor_tuple_fraction": "0.1",
+  "data_checksums": "on",
+  "data_directory": "/rdsdbdata/db",
+  "data_directory_mode": "0700",
+  "db_user_namespace": "off",
+  "deadlock_timeout": "1s",
+  "debug_assertions": "off",
+  "debug_pretty_print": "on",
+  "debug_print_parse": "off",
+  "debug_print_plan": "off",
+  "debug_print_rewritten": "off",
+  "default_statistics_target": "100",
+  "default_tablespace": "",
+  "default_text_search_config": "pg_catalog.simple",
+  "default_transaction_deferrable": "off",
+  "default_transaction_isolation": "read committed",
+  "default_transaction_read_only": "off",
+  "default_with_oids": "off",
+  "dynamic_library_path": "$libdir",
+  "dynamic_shared_memory_type": "posix",
+  "effective_cache_size": "19260784kB",
+  "effective_io_concurrency": "1",
+  "enable_bitmapscan": "on",
+  "enable_gathermerge": "on",
+  "enable_hashagg": "on",
+  "enable_hashjoin": "on",
+  "enable_indexonlyscan": "on",
+  "enable_indexscan": "on",
+  "enable_material": "on",
+  "enable_mergejoin": "on",
+  "enable_nestloop": "on",
+  "enable_parallel_append": "on",
+  "enable_parallel_hash": "on",
+  "enable_partition_pruning": "on",
+  "enable_partitionwise_aggregate": "off",
+  "enable_partitionwise_join": "off",
+  "enable_seqscan": "on",
+  "enable_sort": "on",
+  "enable_tidscan": "on",
+  "escape_string_warning": "on",
+  "event_source": "PostgreSQL",
+  "exit_on_error": "off",
+  "external_pid_file": "",
+  "extra_float_digits": "3",
+  "force_parallel_mode": "off",
+  "from_collapse_limit": "8",
+  "fsync": "on",
+  "full_page_writes": "on",
+  "geqo": "on",
+  "geqo_effort": "5",
+  "geqo_generations": "0",
+  "geqo_pool_size": "0",
+  "geqo_seed": "0",
+  "geqo_selection_bias": "2",
+  "geqo_threshold": "12",
+  "gin_fuzzy_search_limit": "0",
+  "gin_pending_list_limit": "4MB",
+  "hba_file": "/rdsdbdata/config/pg_hba.conf",
+  "hot_standby": "off",
+  "hot_standby_feedback": "off",
+  "huge_pages": "on",
+  "ident_file": "/rdsdbdata/config/pg_ident.conf",
+  "idle_in_transaction_session_timeout": "1d",
+  "ignore_checksum_failure": "off",
+  "ignore_system_indexes": "off",
+  "integer_datetimes": "on",
+  "jit": "off",
+  "jit_above_cost": "100000",
+  "jit_debugging_support": "off",
+  "jit_dump_bitcode": "off",
+  "jit_expressions": "on",
+  "jit_inline_above_cost": "500000",
+  "jit_optimize_above_cost": "500000",
+  "jit_profiling_support": "off",
+  "jit_provider": "llvmjit",
+  "jit_tuple_deforming": "on",
+  "join_collapse_limit": "8",
+  "krb_caseins_users": "off",
+  "krb_server_keyfile": "FILE:/rdsdbbin/postgres-11.1.R1/etc/krb5.keytab",
+  "lc_collate": "en_US.UTF-8",
+  "lc_ctype": "en_US.UTF-8",
+  "lc_messages": "",
+  "lc_monetary": "C",
+  "lc_numeric": "C",
+  "lc_time": "C",
+  "listen_addresses": "*",
+  "lo_compat_privileges": "off",
+  "local_preload_libraries": "",
+  "lock_timeout": "0",
+  "log_autovacuum_min_duration": "10s",
+  "log_checkpoints": "on",
+  "log_connections": "off",
+  "log_destination": "stderr",
+  "log_directory": "/rdsdbdata/log/error",
+  "log_disconnections": "off",
+  "log_duration": "off",
+  "log_error_verbosity": "default",
+  "log_executor_stats": "off",
+  "log_file_mode": "0644",
+  "log_filename": "postgresql.log.%Y-%m-%d-%H",
+  "log_hostname": "on",
+  "log_line_prefix": "%t:%r:%u@%d:[%p]:",
+  "log_lock_waits": "off",
+  "log_min_duration_statement": "-1",
+  "log_min_error_statement": "error",
+  "log_min_messages": "warning",
+  "log_parser_stats": "off",
+  "log_planner_stats": "off",
+  "log_replication_commands": "off",
+  "log_rotation_age": "1h",
+  "log_rotation_size": "10MB",
+  "log_statement": "none",
+  "log_statement_stats": "off",
+  "log_temp_files": "-1",
+  "log_timezone": "UTC",
+  "log_truncate_on_rotation": "off",
+  "logging_collector": "on",
+  "maintenance_work_mem": "394327kB",
+  "max_connections": "3466",
+  "max_files_per_process": "1000",
+  "max_function_args": "100",
+  "max_identifier_length": "63",
+  "max_index_keys": "32",
+  "max_locks_per_transaction": "64",
+  "max_logical_replication_workers": "4",
+  "max_parallel_maintenance_workers": "2",
+  "max_parallel_workers": "8",
+  "max_parallel_workers_per_gather": "2",
+  "max_pred_locks_per_page": "2",
+  "max_pred_locks_per_relation": "-2",
+  "max_pred_locks_per_transaction": "64",
+  "max_prepared_transactions": "0",
+  "max_replication_slots": "0",
+  "max_stack_depth": "6MB",
+  "max_standby_archive_delay": "30s",
+  "max_standby_streaming_delay": "30s",
+  "max_sync_workers_per_subscription": "2",
+  "max_wal_senders": "0",
+  "max_wal_size": "5848MB",
+  "max_worker_processes": "8",
+  "min_parallel_index_scan_size": "512kB",
+  "min_parallel_table_scan_size": "8MB",
+  "min_wal_size": "246MB",
+  "old_snapshot_threshold": "-1",
+  "operator_precedence_warning": "off",
+  "parallel_leader_participation": "on",
+  "parallel_setup_cost": "1000",
+  "parallel_tuple_cost": "0.1",
+  "password_encryption": "md5",
+  "port": "5432",
+  "post_auth_delay": "0",
+  "pre_auth_delay": "0",
+  "quote_all_identifiers": "off",
+  "random_page_cost": "4",
+  "restart_after_crash": "on",
+  "row_security": "on",
+  "search_path": "\"$user\", public",
+  "segment_size": "1GB",
+  "seq_page_cost": "1",
+  "server_encoding": "UTF8",
+  "server_version": "11.1",
+  "server_version_num": "110001",
+  "session_preload_libraries": "",
+  "session_replication_role": "origin",
+  "shared_buffers": "8065544kB",
+  "shared_preload_libraries": "rdsutils,pg_stat_statements",
+  "ssl": "on",
+  "ssl_ca_file": "/rdsdbdata/rds-metadata/ca-cert.pem",
+  "ssl_cert_file": "/rdsdbdata/rds-metadata/server-cert.pem",
+  "ssl_ciphers": "HIGH:MEDIUM:+3DES:!aNULL",
+  "ssl_crl_file": "",
+  "ssl_dh_params_file": "",
+  "ssl_ecdh_curve": "prime256v1",
+  "ssl_key_file": "/rdsdbdata/rds-metadata/server-key.pem",
+  "ssl_passphrase_command": "",
+  "ssl_passphrase_command_supports_reload": "off",
+  "ssl_prefer_server_ciphers": "on",
+  "standard_conforming_strings": "on",
+  "statement_timeout": "0",
+  "stats_temp_directory": "/rdsdbdata/db/pg_stat_tmp",
+  "superuser_reserved_connections": "3",
+  "synchronize_seqscans": "on",
+  "synchronous_commit": "on",
+  "synchronous_standby_names": "",
+  "syslog_facility": "local0",
+  "syslog_ident": "postgres",
+  "syslog_sequence_numbers": "on",
+  "syslog_split_messages": "on",
+  "tcp_keepalives_count": "2",
+  "tcp_keepalives_idle": "300",
+  "tcp_keepalives_interval": "30",
+  "temp_buffers": "8MB",
+  "temp_file_limit": "-1",
+  "temp_tablespaces": "",
+  "timezone_abbreviations": "Default",
+  "trace_notify": "off",
+  "trace_recovery_messages": "log",
+  "trace_sort": "off",
+  "track_activities": "on",
+  "track_activity_query_size": "4kB",
+  "track_commit_timestamp": "off",
+  "track_counts": "on",
+  "track_functions": "all",
+  "track_io_timing": "on",
+  "transaction_deferrable": "off",
+  "transaction_isolation": "read committed",
+  "transaction_read_only": "off",
+  "transform_null_equals": "off",
+  "unix_socket_directories": "/tmp",
+  "unix_socket_group": "rdsdb",
+  "unix_socket_permissions": "0700",
+  "update_process_title": "on",
+  "vacuum_cleanup_index_scale_factor": "0.1",
+  "vacuum_cost_delay": "0",
+  "vacuum_cost_limit": "200",
+  "vacuum_cost_page_dirty": "20",
+  "vacuum_cost_page_hit": "1",
+  "vacuum_cost_page_miss": "5",
+  "vacuum_defer_cleanup_age": "0",
+  "vacuum_freeze_min_age": "50000000",
+  "vacuum_freeze_table_age": "150000000",
+  "vacuum_multixact_freeze_min_age": "5000000",
+  "vacuum_multixact_freeze_table_age": "150000000",
+  "wal_block_size": "8192",
+  "wal_buffers": "64MB",
+  "wal_compression": "off",
+  "wal_consistency_checking": "",
+  "wal_keep_segments": "32",
+  "wal_level": "minimal",
+  "wal_log_hints": "off",
+  "wal_receiver_status_interval": "10s",
+  "wal_receiver_timeout": "30s",
+  "wal_retrieve_retry_interval": "5s",
+  "wal_segment_size": "64MB",
+  "wal_sender_timeout": "30s",
+  "wal_sync_method": "fdatasync",
+  "wal_writer_delay": "200ms",
+  "wal_writer_flush_after": "1MB",
+  "work_mem": "119797kB",
+  "xmlbinary": "base64",
+  "xmloption": "content",
+  "zero_damaged_pages": "off"
+ },
+ "module":{
+  "pg_stat_statements.max": "5000",
+  "pg_stat_statements.save": "on",
+  "pg_stat_statements.track": "top",
+  "pg_stat_statements.track_utility": "on",
+  "rds.extensions": "address_standardizer, address_standardizer_data_us, amcheck, aws_commons, aws_s3, bloom, btree_gin, btree_gist, citext, cube, dblink, dict_int, dict_xsyn, earthdistance, fuzzystrmatch, hll, hstore, hstore_plperl, intagg, intarray, ip4r, isn, jsonb_plperl, log_fdw, ltree, orafce, pageinspect, pgaudit, pgcrypto, pglogical, pgrouting, pgrowlocks, pgstattuple, pgtap, pg_buffercache, pg_freespacemap, pg_hint_plan, pg_prewarm, pg_repack, pg_similarity, pg_stat_statements, pg_transport, pg_trgm, pg_visibility, plcoffee, plls, plperl, plpgsql, plprofiler, pltcl, plv8, postgis, postgis_tiger_geocoder, postgis_topology, postgres_fdw, prefix, sslinfo, tablefunc, test_parser, tsm_system_rows, tsm_system_time, unaccent, uuid-ossp",
+  "rds.force_admin_logging_level": "disabled",
+  "rds.force_autovacuum_logging_level": "info",
+  "rds.internal_databases": "rdsadmin,template0",
+  "rds.logical_replication": "off",
+  "rds.rds_superuser_reserved_connections": "2",
+  "rds.restrict_logical_slot_creation": "off",
+  "rds.restrict_password_commands": "off",
+  "rds.superuser_variables": "session_replication_role"
+  }
+ },
+ "local": null
+}
diff --git a/client/controller/sample_output/rds_postgres/metrics_after.json b/client/controller/sample_output/rds_postgres/metrics_after.json
new file mode 100644
index 0000000..b7febe9
--- /dev/null
+++ b/client/controller/sample_output/rds_postgres/metrics_after.json
@@ -0,0 +1,625 @@
+{
+ "global": {
+  "pg_stat_archiver": {
+   "archived_count": "0",
+   "failed_count": "0",
+   "stats_reset": "2019-01-23 19:10:00.1363+00"
+  },
+  "pg_stat_bgwriter": {
+   "buffers_alloc": "101251951",
+   "buffers_backend": "63398097",
+   "buffers_backend_fsync": "0",
+   "buffers_checkpoint": "158221360",
+   "buffers_clean": "14109895",
+   "checkpoint_sync_time": "568376",
+   "checkpoint_write_time": "39980106",
+   "checkpoints_req": "296",
+   "checkpoints_timed": "245",
+   "maxwritten_clean": "130847",
+   "stats_reset": "2019-01-23 19:10:00.1363+00"
+  },
+  "aws_rds": {
+    "CPUUtilization": "0.6",
+    "ReadIOPS": "600",
+    "WriteIOPS": "700"
+  }
+ },
+ "local": {
+  "table": {
+   "pg_stat_user_tables": {
+    "district": {
+     "analyze_count": "0",
+     "autoanalyze_count": "1078",
+     "autovacuum_count": "1061",
+     "idx_scan": "191780265",
+     "idx_tup_fetch": "191780265",
+     "last_autoanalyze": "2020-09-17 20:14:07.144507+00",
+     "last_autovacuum": "2020-09-17 20:14:05.276582+00",
+     "n_dead_tup": "1711",
+     "n_live_tup": "2000",
+     "n_mod_since_analyze": "11688",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "68117363",
+     "n_tup_ins": "2000",
+     "n_tup_upd": "71477858",
+     "relid": "16444",
+     "relname": "district",
+     "schemaname": "public",
+     "seq_scan": "1349818",
+     "seq_tup_read": "192522363",
+     "vacuum_count": "0"
+    },
+    "oorder": {
+     "analyze_count": "0",
+     "autoanalyze_count": "76",
+     "autovacuum_count": "4",
+     "idx_scan": "528342140",
+     "idx_tup_fetch": "528342140",
+     "last_autoanalyze": "2020-09-17 20:09:07.150018+00",
+     "last_autovacuum": "2020-09-17 17:32:07.700898+00",
+     "n_dead_tup": "1889624",
+     "n_live_tup": "41907562",
+     "n_mod_since_analyze": "388314",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "24810174",
+     "n_tup_ins": "42552281",
+     "n_tup_upd": "32491368",
+     "relid": "16423",
+     "relname": "oorder",
+     "schemaname": "public",
+     "seq_scan": "4",
+     "seq_tup_read": "0",
+     "vacuum_count": "0"
+    },
+    "customer": {
+     "analyze_count": "0",
+     "autoanalyze_count": "110",
+     "autovacuum_count": "14",
+     "idx_scan": "229115914",
+     "idx_tup_fetch": "382406124",
+     "last_autoanalyze": "2020-09-17 20:13:08.972446+00",
+     "last_autovacuum": "2020-09-17 20:03:26.571301+00",
+     "n_dead_tup": "460573",
+     "n_live_tup": "5992578",
+     "n_mod_since_analyze": "95291",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "61717645",
+     "n_tup_ins": "6000000",
+     "n_tup_upd": "67416913",
+     "relid": "16435",
+     "relname": "customer",
+     "schemaname": "public",
+     "seq_scan": "3",
+     "seq_tup_read": "0",
+     "vacuum_count": "0"
+    },
+    "history": {
+     "analyze_count": "0",
+     "autoanalyze_count": "55",
+     "autovacuum_count": "0",
+     "last_autoanalyze": "2020-09-17 20:08:05.833018+00",
+     "n_dead_tup": "15",
+     "n_live_tup": "40779718",
+     "n_mod_since_analyze": "241043",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "0",
+     "n_tup_ins": "40925564",
+     "n_tup_upd": "0",
+     "relid": "16431",
+     "relname": "history",
+     "schemaname": "public",
+     "seq_scan": "2",
+     "seq_tup_read": "0",
+     "vacuum_count": "0"
+    },
+    "warehouse": {
+     "analyze_count": "0",
+     "autoanalyze_count": "1064",
+     "autovacuum_count": "1063",
+     "idx_scan": "126721140",
+     "idx_tup_fetch": "126721140",
+     "last_autoanalyze": "2020-09-17 20:14:00.109575+00",
+     "last_autovacuum": "2020-09-17 20:14:14.357883+00",
+     "n_dead_tup": "0",
+     "n_live_tup": "247",
+     "n_mod_since_analyze": "12862",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "34752156",
+     "n_tup_ins": "200",
+     "n_tup_upd": "34925580",
+     "relid": "16454",
+     "relname": "warehouse",
+     "schemaname": "public",
+     "seq_scan": "1",
+     "seq_tup_read": "0",
+     "vacuum_count": "0"
+    },
+    "order_line": {
+     "analyze_count": "0",
+     "autoanalyze_count": "54",
+     "autovacuum_count": "5",
+     "idx_scan": "71483860",
+     "idx_tup_fetch": "1332104366",
+     "last_autoanalyze": "2020-09-17 16:30:38.172558+00",
+     "last_autovacuum": "2020-09-17 03:59:23.885371+00",
+     "n_dead_tup": "77474362",
+     "n_live_tup": "419306473",
+     "n_mod_since_analyze": "212559299",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "188190018",
+     "n_tup_ins": "421861353",
+     "n_tup_upd": "324908669",
+     "relid": "16408",
+     "relname": "order_line",
+     "schemaname": "public",
+     "seq_scan": "21",
+     "seq_tup_read": "72002632",
+     "vacuum_count": "0"
+    },
+    "stock": {
+     "analyze_count": "0",
+     "autoanalyze_count": "83",
+     "autovacuum_count": "13",
+     "idx_scan": "1798613847",
+     "idx_tup_fetch": "1798613847",
+     "last_autoanalyze": "2020-09-17 19:24:42.314986+00",
+     "last_autovacuum": "2020-09-17 20:04:11.909321+00",
+     "n_dead_tup": "1755419",
+     "n_live_tup": "19986334",
+     "n_mod_since_analyze": "25348177",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "345043050",
+     "n_tup_ins": "20000000",
+     "n_tup_upd": "361853497",
+     "relid": "16418",
+     "relname": "stock",
+     "schemaname": "public",
+     "seq_scan": "12",
+     "seq_tup_read": "4800000",
+     "vacuum_count": "0"
+    },
+    "new_order": {
+     "analyze_count": "0",
+     "autoanalyze_count": "190",
+     "autovacuum_count": "60",
+     "idx_scan": "64982753",
+     "idx_tup_fetch": "64784948",
+     "last_autoanalyze": "2020-09-17 20:12:15.875296+00",
+     "last_autovacuum": "2020-09-17 20:11:58.199273+00",
+     "n_dead_tup": "327678",
+     "n_live_tup": "5368913",
+     "n_mod_since_analyze": "163399",
+     "n_tup_del": "32491375",
+     "n_tup_hot_upd": "0",
+     "n_tup_ins": "38245711",
+     "n_tup_upd": "0",
+     "relid": "16413",
+     "relname": "new_order",
+     "schemaname": "public",
+     "seq_scan": "9",
+     "seq_tup_read": "767834",
+     "vacuum_count": "0"
+    },
+    "item": {
+     "analyze_count": "0",
+     "autoanalyze_count": "2",
+     "autovacuum_count": "0",
+     "idx_scan": "385826878",
+     "idx_tup_fetch": "385460887",
+     "last_autoanalyze": "2020-09-16 16:24:55.829029+00",
+     "n_dead_tup": "0",
+     "n_live_tup": "100000",
+     "n_mod_since_analyze": "0",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "0",
+     "n_tup_ins": "100000",
+     "n_tup_upd": "0",
+     "relid": "16449",
+     "relname": "item",
+     "schemaname": "public",
+     "seq_scan": "1",
+     "seq_tup_read": "0",
+     "vacuum_count": "0"
+    }
+   },
+   "pg_statio_user_tables": {
+    "item": {
+     "heap_blks_hit": "405876793",
+     "heap_blks_read": "6274",
+     "idx_blks_hit": "773663974",
+     "idx_blks_read": "1366",
+     "relid": "16449",
+     "relname": "item",
+     "schemaname": "public"
+    },
+    "order_line": {
+     "heap_blks_hit": "2640195062",
+     "heap_blks_read": "36574411",
+     "idx_blks_hit": "2486763056",
+     "idx_blks_read": "13484610",
+     "relid": "16408",
+     "relname": "order_line",
+     "schemaname": "public"
+    },
+    "oorder": {
+     "heap_blks_hit": "1164033431",
+     "heap_blks_read": "5064792",
+     "idx_blks_hit": "2566096419",
+     "idx_blks_read": "26134786",
+     "relid": "16423",
+     "relname": "oorder",
+     "schemaname": "public"
+    },
+    "customer": {
+     "heap_blks_hit": "621585515",
+     "heap_blks_read": "28028219",
+     "idx_blks_hit": "791583860",
+     "idx_blks_read": "4670478",
+     "relid": "16435",
+     "relname": "customer",
+     "schemaname": "public",
+     "tidx_blks_hit": "0",
+     "tidx_blks_read": "0",
+     "toast_blks_hit": "0",
+     "toast_blks_read": "0"
+    },
+    "warehouse": {
+     "heap_blks_hit": "816879627",
+     "heap_blks_read": "318664",
+     "idx_blks_hit": "257377857",
+     "idx_blks_read": "94",
+     "relid": "16454",
+     "relname": "warehouse",
+     "schemaname": "public"
+    },
+    "stock": {
+     "heap_blks_hit": "3729310376",
+     "heap_blks_read": "27323785",
+     "idx_blks_hit": "5517135577",
+     "idx_blks_read": "2415348",
+     "relid": "16418",
+     "relname": "stock",
+     "schemaname": "public"
+    },
+    "new_order": {
+     "heap_blks_hit": "278715591",
+     "heap_blks_read": "3944748",
+     "idx_blks_hit": "617880675",
+     "idx_blks_read": "2020398",
+     "relid": "16413",
+     "relname": "new_order",
+     "schemaname": "public"
+    },
+    "history": {
+     "heap_blks_hit": "125129201",
+     "heap_blks_read": "1317250",
+     "relid": "16431",
+     "relname": "history",
+     "schemaname": "public"
+    },
+    "district": {
+     "heap_blks_hit": "2689946801",
+     "heap_blks_read": "836499",
+     "idx_blks_hit": "447422082",
+     "idx_blks_read": "884",
+     "relid": "16444",
+     "relname": "district",
+     "schemaname": "public"
+    }
+   }
+  },
+  "database": {
+   "pg_stat_database": {
+    "template0": {
+     "blk_read_time": "0",
+     "blk_write_time": "0",
+     "blks_hit": "0",
+     "blks_read": "0",
+     "conflicts": "0",
+     "datid": "14006",
+     "datname": "template0",
+     "deadlocks": "0",
+     "numbackends": "0",
+     "temp_bytes": "0",
+     "temp_files": "0",
+     "tup_deleted": "0",
+     "tup_fetched": "0",
+     "tup_inserted": "0",
+     "tup_returned": "0",
+     "tup_updated": "0",
+     "xact_commit": "0",
+     "xact_rollback": "0"
+    },
+    "rdsadmin": {
+     "blk_read_time": "117.429000000000002",
+     "blk_write_time": "12.1630000000000003",
+     "blks_hit": "916974",
+     "blks_read": "5848",
+     "conflicts": "0",
+     "datid": "16384",
+     "datname": "rdsadmin",
+     "deadlocks": "0",
+     "numbackends": "2",
+     "stats_reset": "2019-01-23 19:10:11.708222+00",
+     "temp_bytes": "0",
+     "temp_files": "0",
+     "tup_deleted": "3",
+     "tup_fetched": "72231",
+     "tup_inserted": "75",
+     "tup_returned": "23654037",
+     "tup_updated": "369",
+     "xact_commit": "198742",
+     "xact_rollback": "0"
+    },
+    "template1": {
+     "blk_read_time": "6.08999999999999986",
+     "blk_write_time": "3.00999999999999979",
+     "blks_hit": "386398",
+     "blks_read": "1373",
+     "conflicts": "0",
+     "datid": "1",
+     "datname": "template1",
+     "deadlocks": "0",
+     "numbackends": "0",
+     "stats_reset": "2020-09-16 15:01:54.044413+00",
+     "temp_bytes": "0",
+     "temp_files": "0",
+     "tup_deleted": "0",
+     "tup_fetched": "60888",
+     "tup_inserted": "0",
+     "tup_returned": "5521392",
+     "tup_updated": "1",
+     "xact_commit": "10455",
+     "xact_rollback": "0"
+    },
+    "postgres": {
+     "blk_read_time": "7.36000000000000032",
+     "blk_write_time": "3.70400000000000018",
+     "blks_hit": "404963",
+     "blks_read": "1875",
+     "conflicts": "0",
+     "datid": "14007",
+     "datname": "postgres",
+     "deadlocks": "0",
+     "numbackends": "0",
+     "stats_reset": "2019-01-23 19:10:10.497522+00",
+     "temp_bytes": "0",
+     "temp_files": "0",
+     "tup_deleted": "0",
+     "tup_fetched": "69558",
+     "tup_inserted": "0",
+     "tup_returned": "5533294",
+     "tup_updated": "1",
+     "xact_commit": "10507",
+     "xact_rollback": "4"
+    },
+    "tpcc": {
+     "blk_read_time": "155814139.738999993",
+     "blk_write_time": "451775.764000000025",
+     "blks_hit": "25941083055",
+     "blks_read": "152158081",
+     "conflicts": "0",
+     "datid": "16395",
+     "datname": "tpcc",
+     "deadlocks": "0",
+     "numbackends": "54",
+     "stats_reset": "2020-09-16 16:03:18.758907+00",
+     "temp_bytes": "0",
+     "temp_files": "0",
+     "tup_deleted": "32504963",
+     "tup_fetched": "4818270282",
+     "tup_inserted": "569701325",
+     "tup_returned": "9042340600",
+     "tup_updated": "893101105",
+     "xact_commit": "80978246",
+     "xact_rollback": "366198"
+    }
+   },
+   "pg_stat_database_conflicts": {
+    "template0": {
+     "confl_bufferpin": "0",
+     "confl_deadlock": "0",
+     "confl_lock": "0",
+     "confl_snapshot": "0",
+     "confl_tablespace": "0",
+     "datid": "14006",
+     "datname": "template0"
+    },
+    "rdsadmin": {
+     "confl_bufferpin": "0",
+     "confl_deadlock": "0",
+     "confl_lock": "0",
+     "confl_snapshot": "0",
+     "confl_tablespace": "0",
+     "datid": "16384",
+     "datname": "rdsadmin"
+    },
+    "template1": {
+     "confl_bufferpin": "0",
+     "confl_deadlock": "0",
+     "confl_lock": "0",
+     "confl_snapshot": "0",
+     "confl_tablespace": "0",
+     "datid": "1",
+     "datname": "template1"
+    },
+    "postgres": {
+     "confl_bufferpin": "0",
+     "confl_deadlock": "0",
+     "confl_lock": "0",
+     "confl_snapshot": "0",
+     "confl_tablespace": "0",
+     "datid": "14007",
+     "datname": "postgres"
+    },
+    "tpcc": {
+     "confl_bufferpin": "0",
+     "confl_deadlock": "0",
+     "confl_lock": "0",
+     "confl_snapshot": "0",
+     "confl_tablespace": "0",
+     "datid": "16395",
+     "datname": "tpcc"
+    }
+   }
+  },
+  "indexes": {
+   "pg_stat_user_indexes": {
+    "order_line": {
+     "idx_scan": "71483860",
+     "idx_tup_fetch": "1332104366",
+     "idx_tup_read": "1470381755",
+     "indexrelid": "16411",
+     "indexrelname": "order_line_pkey",
+     "relid": "16408",
+     "relname": "order_line",
+     "schemaname": "public"
+    },
+    "new_order": {
+     "idx_scan": "64982753",
+     "idx_tup_fetch": "64784948",
+     "idx_tup_read": "808760330",
+     "indexrelid": "16416",
+     "indexrelname": "new_order_pkey",
+     "relid": "16413",
+     "relname": "new_order",
+     "schemaname": "public"
+    },
+    "stock": {
+     "idx_scan": "1798613847",
+     "idx_tup_fetch": "1798613847",
+     "idx_tup_read": "2053109994",
+     "indexrelid": "16421",
+     "indexrelname": "stock_pkey",
+     "relid": "16418",
+     "relname": "stock",
+     "schemaname": "public"
+    },
+    "oorder": {
+     "idx_scan": "3946023",
+     "idx_tup_fetch": "3946023",
+     "idx_tup_read": "4054082",
+     "indexrelid": "16460",
+     "indexrelname": "idx_order",
+     "relid": "16423",
+     "relname": "oorder",
+     "schemaname": "public"
+    },
+    "customer": {
+     "idx_scan": "23022453",
+     "idx_tup_fetch": "176312663",
+     "idx_tup_read": "180321032",
+     "indexrelid": "16459",
+     "indexrelname": "idx_customer_name",
+     "relid": "16435",
+     "relname": "customer",
+     "schemaname": "public"
+    },
+    "district": {
+     "idx_scan": "191780265",
+     "idx_tup_fetch": "22913495",
+     "idx_tup_read": "2395304146",
+     "indexrelid": "16447",
+     "indexrelname": "district_pkey",
+     "relid": "16444",
+     "relname": "district",
+     "schemaname": "public"
+    },
+    "item": {
+     "idx_scan": "385826878",
+     "idx_tup_fetch": "385460887",
+     "idx_tup_read": "385460887",
+     "indexrelid": "16452",
+     "indexrelname": "item_pkey",
+     "relid": "16449",
+     "relname": "item",
+     "schemaname": "public"
+    },
+    "warehouse": {
+     "idx_scan": "126721140",
+     "idx_tup_fetch": "60290045",
+     "idx_tup_read": "722402139",
+     "indexrelid": "16457",
+     "indexrelname": "warehouse_pkey",
+     "relid": "16454",
+     "relname": "warehouse",
+     "schemaname": "public"
+    }
+   },
+   "pg_statio_user_indexes": {
+    "order_line": {
+     "idx_blks_hit": "2486763056",
+     "idx_blks_read": "13484610",
+     "indexrelid": "16411",
+     "indexrelname": "order_line_pkey",
+     "relid": "16408",
+     "relname": "order_line",
+     "schemaname": "public"
+    },
+    "new_order": {
+     "idx_blks_hit": "617880675",
+     "idx_blks_read": "2020398",
+     "indexrelid": "16416",
+     "indexrelname": "new_order_pkey",
+     "relid": "16413",
+     "relname": "new_order",
+     "schemaname": "public"
+    },
+    "stock": {
+     "idx_blks_hit": "5517135577",
+     "idx_blks_read": "2415348",
+     "indexrelid": "16421",
+     "indexrelname": "stock_pkey",
+     "relid": "16418",
+     "relname": "stock",
+     "schemaname": "public"
+    },
+    "oorder": {
+     "idx_blks_hit": "194457622",
+     "idx_blks_read": "12512311",
+     "indexrelid": "16460",
+     "indexrelname": "idx_order",
+     "relid": "16423",
+     "relname": "oorder",
+     "schemaname": "public"
+    },
+    "customer": {
+     "idx_blks_hit": "138337626",
+     "idx_blks_read": "2933161",
+     "indexrelid": "16459",
+     "indexrelname": "idx_customer_name",
+     "relid": "16435",
+     "relname": "customer",
+     "schemaname": "public"
+    },
+    "district": {
+     "idx_blks_hit": "447422082",
+     "idx_blks_read": "884",
+     "indexrelid": "16447",
+     "indexrelname": "district_pkey",
+     "relid": "16444",
+     "relname": "district",
+     "schemaname": "public"
+    },
+    "item": {
+     "idx_blks_hit": "773663974",
+     "idx_blks_read": "1366",
+     "indexrelid": "16452",
+     "indexrelname": "item_pkey",
+     "relid": "16449",
+     "relname": "item",
+     "schemaname": "public"
+    },
+    "warehouse": {
+     "idx_blks_hit": "257377857",
+     "idx_blks_read": "94",
+     "indexrelid": "16457",
+     "indexrelname": "warehouse_pkey",
+     "relid": "16454",
+     "relname": "warehouse",
+     "schemaname": "public"
+    }
+   }
+  }
+ }
+}
diff --git a/client/controller/sample_output/rds_postgres/metrics_before.json b/client/controller/sample_output/rds_postgres/metrics_before.json
new file mode 100644
index 0000000..145430d
--- /dev/null
+++ b/client/controller/sample_output/rds_postgres/metrics_before.json
@@ -0,0 +1,625 @@
+{
+ "global": {
+  "pg_stat_archiver": {
+   "archived_count": "0",
+   "failed_count": "0",
+   "stats_reset": "2019-01-23 19:10:00.1363+00"
+  },
+  "pg_stat_bgwriter": {
+   "buffers_alloc": "100659831",
+   "buffers_backend": "62661599",
+   "buffers_backend_fsync": "0",
+   "buffers_checkpoint": "157514679",
+   "buffers_clean": "14034795",
+   "checkpoint_sync_time": "562503",
+   "checkpoint_write_time": "39786632",
+   "checkpoints_req": "296",
+   "checkpoints_timed": "244",
+   "maxwritten_clean": "130096",
+   "stats_reset": "2019-01-23 19:10:00.1363+00"
+  },
+  "aws_rds": {
+    "CPUUtilization": "0.2",
+    "ReadIOPS": "500",
+    "WriteIOPS": "600"
+  }
+ },
+ "local": {
+  "table": {
+   "pg_stat_user_tables": {
+    "district": {
+     "analyze_count": "0",
+     "autoanalyze_count": "1073",
+     "autovacuum_count": "1056",
+     "idx_scan": "191112737",
+     "idx_tup_fetch": "191112737",
+     "last_autoanalyze": "2020-09-17 20:04:28.024577+00",
+     "last_autovacuum": "2020-09-17 20:04:24.36634+00",
+     "n_dead_tup": "53192",
+     "n_live_tup": "2015",
+     "n_mod_since_analyze": "452464",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "67864442",
+     "n_tup_ins": "2000",
+     "n_tup_upd": "71214523",
+     "relid": "16444",
+     "relname": "district",
+     "schemaname": "public",
+     "seq_scan": "1349818",
+     "seq_tup_read": "192522363",
+     "vacuum_count": "0"
+    },
+    "oorder": {
+     "analyze_count": "0",
+     "autoanalyze_count": "76",
+     "autovacuum_count": "4",
+     "idx_scan": "526626184",
+     "idx_tup_fetch": "526626184",
+     "last_autoanalyze": "2020-09-17 20:09:07.150018+00",
+     "last_autovacuum": "2020-09-17 17:32:07.700898+00",
+     "n_dead_tup": "1866969",
+     "n_live_tup": "41774347",
+     "n_mod_since_analyze": "135679",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "24703483",
+     "n_tup_ins": "42417788",
+     "n_tup_upd": "32371948",
+     "relid": "16423",
+     "relname": "oorder",
+     "schemaname": "public",
+     "seq_scan": "4",
+     "seq_tup_read": "0",
+     "vacuum_count": "0"
+    },
+    "customer": {
+     "analyze_count": "0",
+     "autoanalyze_count": "109",
+     "autovacuum_count": "14",
+     "idx_scan": "228316114",
+     "idx_tup_fetch": "381406217",
+     "last_autoanalyze": "2020-09-17 20:04:08.43657+00",
+     "last_autovacuum": "2020-09-17 20:03:26.571301+00",
+     "n_dead_tup": "432280",
+     "n_live_tup": "5993062",
+     "n_mod_since_analyze": "477746",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "61498691",
+     "n_tup_ins": "6000000",
+     "n_tup_upd": "67168651",
+     "relid": "16435",
+     "relname": "customer",
+     "schemaname": "public",
+     "seq_scan": "3",
+     "seq_tup_read": "0",
+     "vacuum_count": "0"
+    },
+    "history": {
+     "analyze_count": "0",
+     "autoanalyze_count": "55",
+     "autovacuum_count": "0",
+     "last_autoanalyze": "2020-09-17 20:08:05.833018+00",
+     "n_dead_tup": "15",
+     "n_live_tup": "40650876",
+     "n_mod_since_analyze": "112201",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "0",
+     "n_tup_ins": "40796722",
+     "n_tup_upd": "0",
+     "relid": "16431",
+     "relname": "history",
+     "schemaname": "public",
+     "seq_scan": "2",
+     "seq_tup_read": "0",
+     "vacuum_count": "0"
+    },
+    "warehouse": {
+     "analyze_count": "0",
+     "autoanalyze_count": "1059",
+     "autovacuum_count": "1057",
+     "idx_scan": "126327795",
+     "idx_tup_fetch": "126327795",
+     "last_autoanalyze": "2020-09-17 20:04:18.883452+00",
+     "last_autovacuum": "2020-09-17 20:04:17.240777+00",
+     "n_dead_tup": "3505",
+     "n_live_tup": "200",
+     "n_mod_since_analyze": "233202",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "34623756",
+     "n_tup_ins": "200",
+     "n_tup_upd": "34796738",
+     "relid": "16454",
+     "relname": "warehouse",
+     "schemaname": "public",
+     "seq_scan": "1",
+     "seq_tup_read": "0",
+     "vacuum_count": "0"
+    },
+    "order_line": {
+     "analyze_count": "0",
+     "autoanalyze_count": "54",
+     "autovacuum_count": "5",
+     "idx_scan": "71221027",
+     "idx_tup_fetch": "1327195777",
+     "last_autoanalyze": "2020-09-17 16:30:38.172558+00",
+     "last_autovacuum": "2020-09-17 03:59:23.885371+00",
+     "n_dead_tup": "76894625",
+     "n_live_tup": "417975827",
+     "n_mod_since_analyze": "210033462",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "187356719",
+     "n_tup_ins": "420530707",
+     "n_tup_upd": "323713478",
+     "relid": "16408",
+     "relname": "order_line",
+     "schemaname": "public",
+     "seq_scan": "21",
+     "seq_tup_read": "72002632",
+     "vacuum_count": "0"
+    },
+    "stock": {
+     "analyze_count": "0",
+     "autoanalyze_count": "83",
+     "autovacuum_count": "13",
+     "idx_scan": "1792212095",
+     "idx_tup_fetch": "1792212095",
+     "last_autoanalyze": "2020-09-17 19:24:42.314986+00",
+     "last_autovacuum": "2020-09-17 20:04:11.909321+00",
+     "n_dead_tup": "1671358",
+     "n_live_tup": "19986334",
+     "n_mod_since_analyze": "24017531",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "343768357",
+     "n_tup_ins": "20000000",
+     "n_tup_upd": "360522851",
+     "relid": "16418",
+     "relname": "stock",
+     "schemaname": "public",
+     "seq_scan": "12",
+     "seq_tup_read": "4800000",
+     "vacuum_count": "0"
+    },
+    "new_order": {
+     "analyze_count": "0",
+     "autoanalyze_count": "189",
+     "autovacuum_count": "59",
+     "idx_scan": "64743913",
+     "idx_tup_fetch": "64546804",
+     "last_autoanalyze": "2020-09-17 19:37:06.793774+00",
+     "last_autovacuum": "2020-09-17 19:35:59.813062+00",
+     "n_dead_tup": "1805677",
+     "n_live_tup": "5368360",
+     "n_mod_since_analyze": "3490488",
+     "n_tup_del": "32371955",
+     "n_tup_hot_upd": "0",
+     "n_tup_ins": "38111218",
+     "n_tup_upd": "0",
+     "relid": "16413",
+     "relname": "new_order",
+     "schemaname": "public",
+     "seq_scan": "9",
+     "seq_tup_read": "767834",
+     "vacuum_count": "0"
+    },
+    "item": {
+     "analyze_count": "0",
+     "autoanalyze_count": "2",
+     "autovacuum_count": "0",
+     "idx_scan": "384482380",
+     "idx_tup_fetch": "384117667",
+     "last_autoanalyze": "2020-09-16 16:24:55.829029+00",
+     "n_dead_tup": "0",
+     "n_live_tup": "100000",
+     "n_mod_since_analyze": "0",
+     "n_tup_del": "0",
+     "n_tup_hot_upd": "0",
+     "n_tup_ins": "100000",
+     "n_tup_upd": "0",
+     "relid": "16449",
+     "relname": "item",
+     "schemaname": "public",
+     "seq_scan": "1",
+     "seq_tup_read": "0",
+     "vacuum_count": "0"
+    }
+   },
+   "pg_statio_user_tables": {
+    "item": {
+     "heap_blks_hit": "404532405",
+     "heap_blks_read": "6274",
+     "idx_blks_hit": "770968569",
+     "idx_blks_read": "1366",
+     "relid": "16449",
+     "relname": "item",
+     "schemaname": "public"
+    },
+    "order_line": {
+     "heap_blks_hit": "2631846035",
+     "heap_blks_read": "36505629",
+     "idx_blks_hit": "2478917785",
+     "idx_blks_read": "13453235",
+     "relid": "16408",
+     "relname": "order_line",
+     "schemaname": "public"
+    },
+    "oorder": {
+     "heap_blks_hit": "1160305006",
+     "heap_blks_read": "5053529",
+     "idx_blks_hit": "2557643517",
+     "idx_blks_read": "25945541",
+     "relid": "16423",
+     "relname": "oorder",
+     "schemaname": "public"
+    },
+    "customer": {
+     "heap_blks_hit": "619739984",
+     "heap_blks_read": "27843795",
+     "idx_blks_hit": "788853409",
+     "idx_blks_read": "4649903",
+     "relid": "16435",
+     "relname": "customer",
+     "schemaname": "public",
+     "tidx_blks_hit": "0",
+     "tidx_blks_read": "0",
+     "toast_blks_hit": "0",
+     "toast_blks_read": "0"
+    },
+    "warehouse": {
+     "heap_blks_hit": "810770535",
+     "heap_blks_read": "309501",
+     "idx_blks_hit": "256456040",
+     "idx_blks_read": "92",
+     "relid": "16454",
+     "relname": "warehouse",
+     "schemaname": "public"
+    },
+    "stock": {
+     "heap_blks_hit": "3717222106",
+     "heap_blks_read": "27224679",
+     "idx_blks_hit": "5497628130",
+     "idx_blks_read": "2407761",
+     "relid": "16418",
+     "relname": "stock",
+     "schemaname": "public"
+    },
+    "new_order": {
+     "heap_blks_hit": "277860534",
+     "heap_blks_read": "3859002",
+     "idx_blks_hit": "616006719",
+     "idx_blks_read": "1975587",
+     "relid": "16413",
+     "relname": "new_order",
+     "schemaname": "public"
+    },
+    "history": {
+     "heap_blks_hit": "124734987",
+     "heap_blks_read": "1285822",
+     "relid": "16431",
+     "relname": "history",
+     "schemaname": "public"
+    },
+    "district": {
+     "heap_blks_hit": "2668027329",
+     "heap_blks_read": "813937",
+     "idx_blks_hit": "445686554",
+     "idx_blks_read": "882",
+     "relid": "16444",
+     "relname": "district",
+     "schemaname": "public"
+    }
+   }
+  },
+  "database": {
+   "pg_stat_database": {
+    "template0": {
+     "blk_read_time": "0",
+     "blk_write_time": "0",
+     "blks_hit": "0",
+     "blks_read": "0",
+     "conflicts": "0",
+     "datid": "14006",
+     "datname": "template0",
+     "deadlocks": "0",
+     "numbackends": "0",
+     "temp_bytes": "0",
+     "temp_files": "0",
+     "tup_deleted": "0",
+     "tup_fetched": "0",
+     "tup_inserted": "0",
+     "tup_returned": "0",
+     "tup_updated": "0",
+     "xact_commit": "0",
+     "xact_rollback": "0"
+    },
+    "rdsadmin": {
+     "blk_read_time": "117.251999999999995",
+     "blk_write_time": "11.7899999999999991",
+     "blks_hit": "915951",
+     "blks_read": "5750",
+     "conflicts": "0",
+     "datid": "16384",
+     "datname": "rdsadmin",
+     "deadlocks": "0",
+     "numbackends": "2",
+     "stats_reset": "2019-01-23 19:10:11.708222+00",
+     "temp_bytes": "0",
+     "temp_files": "0",
+     "tup_deleted": "3",
+     "tup_fetched": "72165",
+     "tup_inserted": "75",
+     "tup_returned": "23624919",
+     "tup_updated": "368",
+     "xact_commit": "198346",
+     "xact_rollback": "0"
+    },
+    "template1": {
+     "blk_read_time": "5.95800000000000018",
+     "blk_write_time": "2.93199999999999994",
+     "blks_hit": "385991",
+     "blks_read": "1342",
+     "conflicts": "0",
+     "datid": "1",
+     "datname": "template1",
+     "deadlocks": "0",
+     "numbackends": "0",
+     "stats_reset": "2020-09-16 15:01:54.044413+00",
+     "temp_bytes": "0",
+     "temp_files": "0",
+     "tup_deleted": "0",
+     "tup_fetched": "60822",
+     "tup_inserted": "0",
+     "tup_returned": "5515050",
+     "tup_updated": "1",
+     "xact_commit": "10443",
+     "xact_rollback": "0"
+    },
+    "postgres": {
+     "blk_read_time": "7.23399999999999999",
+     "blk_write_time": "3.45599999999999996",
+     "blks_hit": "404432",
+     "blks_read": "1835",
+     "conflicts": "0",
+     "datid": "14007",
+     "datname": "postgres",
+     "deadlocks": "0",
+     "numbackends": "0",
+     "stats_reset": "2019-01-23 19:10:10.497522+00",
+     "temp_bytes": "0",
+     "temp_files": "0",
+     "tup_deleted": "0",
+     "tup_fetched": "69432",
+     "tup_inserted": "0",
+     "tup_returned": "5526892",
+     "tup_updated": "1",
+     "xact_commit": "10495",
+     "xact_rollback": "4"
+    },
+    "tpcc": {
+     "blk_read_time": "154876770.284000009",
+     "blk_write_time": "448993.135000000009",
+     "blks_hit": "25838632902",
+     "blks_read": "151351729",
+     "conflicts": "0",
+     "datid": "16395",
+     "datname": "tpcc",
+     "deadlocks": "0",
+     "numbackends": "54",
+     "stats_reset": "2020-09-16 16:03:18.758907+00",
+     "temp_bytes": "0",
+     "temp_files": "0",
+     "tup_deleted": "32385441",
+     "tup_fetched": "4801562693",
+     "tup_inserted": "567972748",
+     "tup_returned": "8998371523",
+     "tup_updated": "889815236",
+     "xact_commit": "80680181",
+     "xact_rollback": "364920"
+    }
+   },
+   "pg_stat_database_conflicts": {
+    "template0": {
+     "confl_bufferpin": "0",
+     "confl_deadlock": "0",
+     "confl_lock": "0",
+     "confl_snapshot": "0",
+     "confl_tablespace": "0",
+     "datid": "14006",
+     "datname": "template0"
+    },
+    "rdsadmin": {
+     "confl_bufferpin": "0",
+     "confl_deadlock": "0",
+     "confl_lock": "0",
+     "confl_snapshot": "0",
+     "confl_tablespace": "0",
+     "datid": "16384",
+     "datname": "rdsadmin"
+    },
+    "template1": {
+     "confl_bufferpin": "0",
+     "confl_deadlock": "0",
+     "confl_lock": "0",
+     "confl_snapshot": "0",
+     "confl_tablespace": "0",
+     "datid": "1",
+     "datname": "template1"
+    },
+    "postgres": {
+     "confl_bufferpin": "0",
+     "confl_deadlock": "0",
+     "confl_lock": "0",
+     "confl_snapshot": "0",
+     "confl_tablespace": "0",
+     "datid": "14007",
+     "datname": "postgres"
+    },
+    "tpcc": {
+     "confl_bufferpin": "0",
+     "confl_deadlock": "0",
+     "confl_lock": "0",
+     "confl_snapshot": "0",
+     "confl_tablespace": "0",
+     "datid": "16395",
+     "datname": "tpcc"
+    }
+   }
+  },
+  "indexes": {
+   "pg_stat_user_indexes": {
+    "order_line": {
+     "idx_scan": "71221027",
+     "idx_tup_fetch": "1327195777",
+     "idx_tup_read": "1465108454",
+     "indexrelid": "16411",
+     "indexrelname": "order_line_pkey",
+     "relid": "16408",
+     "relname": "order_line",
+     "schemaname": "public"
+    },
+    "new_order": {
+     "idx_scan": "64743913",
+     "idx_tup_fetch": "64546804",
+     "idx_tup_read": "807841105",
+     "indexrelid": "16416",
+     "indexrelname": "new_order_pkey",
+     "relid": "16413",
+     "relname": "new_order",
+     "schemaname": "public"
+    },
+    "stock": {
+     "idx_scan": "1792212095",
+     "idx_tup_fetch": "1792212095",
+     "idx_tup_read": "2046477920",
+     "indexrelid": "16421",
+     "indexrelname": "stock_pkey",
+     "relid": "16418",
+     "relname": "stock",
+     "schemaname": "public"
+    },
+    "oorder": {
+     "idx_scan": "3934046",
+     "idx_tup_fetch": "3934046",
+     "idx_tup_read": "4041834",
+     "indexrelid": "16460",
+     "indexrelname": "idx_order",
+     "relid": "16423",
+     "relname": "oorder",
+     "schemaname": "public"
+    },
+    "customer": {
+     "idx_scan": "22938165",
+     "idx_tup_fetch": "176028268",
+     "idx_tup_read": "180010353",
+     "indexrelid": "16459",
+     "indexrelname": "idx_customer_name",
+     "relid": "16435",
+     "relname": "customer",
+     "schemaname": "public"
+    },
+    "district": {
+     "idx_scan": "191112737",
+     "idx_tup_fetch": "22880392",
+     "idx_tup_read": "2374164407",
+     "indexrelid": "16447",
+     "indexrelname": "district_pkey",
+     "relid": "16444",
+     "relname": "district",
+     "schemaname": "public"
+    },
+    "item": {
+     "idx_scan": "384482380",
+     "idx_tup_fetch": "384117667",
+     "idx_tup_read": "384117667",
+     "indexrelid": "16452",
+     "indexrelname": "item_pkey",
+     "relid": "16449",
+     "relname": "item",
+     "schemaname": "public"
+    },
+    "warehouse": {
+     "idx_scan": "126327795",
+     "idx_tup_fetch": "60255348",
+     "idx_tup_read": "716578474",
+     "indexrelid": "16457",
+     "indexrelname": "warehouse_pkey",
+     "relid": "16454",
+     "relname": "warehouse",
+     "schemaname": "public"
+    }
+   },
+   "pg_statio_user_indexes": {
+    "order_line": {
+     "idx_blks_hit": "2478917785",
+     "idx_blks_read": "13453235",
+     "indexrelid": "16411",
+     "indexrelname": "order_line_pkey",
+     "relid": "16408",
+     "relname": "order_line",
+     "schemaname": "public"
+    },
+    "new_order": {
+     "idx_blks_hit": "616006719",
+     "idx_blks_read": "1975587",
+     "indexrelid": "16416",
+     "indexrelname": "new_order_pkey",
+     "relid": "16413",
+     "relname": "new_order",
+     "schemaname": "public"
+    },
+    "stock": {
+     "idx_blks_hit": "5497628130",
+     "idx_blks_read": "2407761",
+     "indexrelid": "16421",
+     "indexrelname": "stock_pkey",
+     "relid": "16418",
+     "relname": "stock",
+     "schemaname": "public"
+    },
+    "oorder": {
+     "idx_blks_hit": "193913715",
+     "idx_blks_read": "12416799",
+     "indexrelid": "16460",
+     "indexrelname": "idx_order",
+     "relid": "16423",
+     "relname": "oorder",
+     "schemaname": "public"
+    },
+    "customer": {
+     "idx_blks_hit": "137876359",
+     "idx_blks_read": "2920974",
+     "indexrelid": "16459",
+     "indexrelname": "idx_customer_name",
+     "relid": "16435",
+     "relname": "customer",
+     "schemaname": "public"
+    },
+    "district": {
+     "idx_blks_hit": "445686554",
+     "idx_blks_read": "882",
+     "indexrelid": "16447",
+     "indexrelname": "district_pkey",
+     "relid": "16444",
+     "relname": "district",
+     "schemaname": "public"
+    },
+    "item": {
+     "idx_blks_hit": "770968569",
+     "idx_blks_read": "1366",
+     "indexrelid": "16452",
+     "indexrelname": "item_pkey",
+     "relid": "16449",
+     "relname": "item",
+     "schemaname": "public"
+    },
+    "warehouse": {
+     "idx_blks_hit": "256456040",
+     "idx_blks_read": "92",
+     "indexrelid": "16457",
+     "indexrelname": "warehouse_pkey",
+     "relid": "16454",
+     "relname": "warehouse",
+     "schemaname": "public"
+    }
+   }
+  }
+ }
+}
diff --git a/client/controller/sample_output/rds_postgres/summary.json b/client/controller/sample_output/rds_postgres/summary.json
new file mode 100644
index 0000000..a7a07d8
--- /dev/null
+++ b/client/controller/sample_output/rds_postgres/summary.json
@@ -0,0 +1,8 @@
+{
+ "start_time": 1600373454483,
+ "end_time": 1600373654484,
+ "observation_time": 200,
+ "database_type": "postgres",
+ "database_version": "11",
+ "workload_name": "tpcc"
+}