/usr/bin/ is in check-postgres 2.21.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/bin/check_postgres_custom_query
/usr/bin/check_postgres_new_version_pg
/usr/bin/check_postgres_connection
/usr/bin/check_postgres_relation_size
/usr/bin/check_postgres_fsm_relations
/usr/bin/check_postgres_new_version_cp
/usr/bin/check_postgres_wal_files
/usr/bin/check_postgres_pgb_pool_sv_login
/usr/bin/check_postgres_dbstats
/usr/bin/check_postgres_locks
/usr/bin/check_postgres_last_autoanalyze
/usr/bin/check_postgres_txn_wraparound
/usr/bin/check_postgres_sequence
/usr/bin/check_postgres_pgb_pool_cl_waiting
/usr/bin/check_postgres_pgb_pool_cl_active
/usr/bin/check_postgres_timesync
/usr/bin/check_postgres_settings_checksum
/usr/bin/check_postgres_fsm_pages
/usr/bin/check_postgres_pgb_pool_sv_tested
/usr/bin/check_postgres_new_version_box
/usr/bin/check_postgres_pgbouncer_backends
/usr/bin/check_postgres_txn_time
/usr/bin/check_postgres
/usr/bin/check_postgres_database_size
/usr/bin/check_postgres_replicate_row
/usr/bin/check_postgres_query_time
/usr/bin/check_postgres_pgb_pool_maxwait
/usr/bin/check_postgres_slony_status
/usr/bin/check_postgres_pgb_pool_sv_idle
/usr/bin/check_postgres_pgbouncer_checksum
/usr/bin/check_postgres_archive_ready
/usr/bin/check_postgres_last_autovacuum
/usr/bin/check_postgres_disk_space
/usr/bin/check_postgres_hot_standby_delay
/usr/bin/check_postgres_txn_idle
/usr/bin/check_postgres_same_schema
/usr/bin/check_postgres_last_vacuum
/usr/bin/check_postgres_listener
/usr/bin/check_postgres_commitratio
/usr/bin/check_postgres_index_size
/usr/bin/check_postgres_backends
/usr/bin/check_postgres_checkpoint
/usr/bin/check_postgres_pgb_pool_sv_used
/usr/bin/check_postgres_last_analyze
/usr/bin/check_postgres_pgb_pool_sv_active
/usr/bin/check_postgres_logfile
/usr/bin/check_postgres_prepared_txns
/usr/bin/check_postgres_new_version_bc
/usr/bin/check_postgres_cluster_id
/usr/bin/check_postgres_pgagent_jobs
/usr/bin/check_postgres_bloat
/usr/bin/check_postgres_new_version_tnm
/usr/bin/check_postgres_autovac_freeze
/usr/bin/check_postgres_disabled_triggers
/usr/bin/check_postgres_version
/usr/bin/check_postgres_table_size
/usr/bin/check_postgres_query_runtime
/usr/bin/check_postgres_hitratio