Waiting for a timeline history file received via streaming replication to reach durable storage. The pg_statio_user_indexes and pg_statio_sys_indexes views contain the same information, but filtered to only show user and system indexes respectively. Other ways of looking at the statistics can be set up by writing queries that use the same underlying statistics access functions used by the standard views shown above. Waiting for a two phase state file to reach durable storage. The pg_stat_user_tables and pg_stat_sys_tables views contain the same information, but filtered to only show user and system tables respectively. See, One row per connection (regular and replication), showing information about GSSAPI authentication and encryption used on this connection. Waiting to read or update information about. Waiting to find or allocate space in shared memory. See, One row per connection (regular and replication), showing information about SSL used on this connection. Waiting while sending synchronization requests to the checkpointer, because the request queue is full. postgres7 Slru--1. If the current query is the first of its transaction, this column is equal to the query_start column. The server process is idle. Waiting for truncate of mapping data during a logical rewrite. Waiting for a write of a two phase state file. The combination of certificate serial number and certificate issuer uniquely identifies a certificate (unless the issuer erroneously reuses serial numbers). Conversely, if it's known that statistics are only accessed once, caching accessed statistics is unnecessary and can be avoided by setting stats_fetch_consistency to none. Waiting for a read of the relation map file. Waiting to access the list of finished serializable transactions. In a bitmap scan the output of several indexes can be combined via AND or OR rules, so it is difficult to associate individual heap row fetches with specific indexes when a bitmap scan is used. Alone the requirement of separate fsyncs and everything is pretty bothersome. It also tracks the total number of rows in each table, and information about . Waiting for a read of a two phase state file. The parameter track_wal_io_timing enables monitoring of WAL write times. Returns the IP address of the client connected to this backend. Waiting for the relation map file to reach durable storage. Number of data page checksum failures detected in this database (or on a shared object), or NULL if data checksums are not enabled.
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