Use more consistent names for wait event objects and types

The event names use the same case-insensitive characters, hence applying
lower() or upper() to the monitoring queries allows the detection of the
same events as before this change.  It is possible to cross-check the
data with the system view pg_wait_events, for instance, with a query
like that showing no differences:
SELECT lower(type), lower(name), description
  FROM pg_wait_events ORDER BY 1, 2;

This will help in the introduction of more simplifications in the format
of wait_event_names.  Some of the enum values in the code had to be
renamed a bit to follow the same convention naming across the board.

Reviewed-by: Bertrand Drouvot
Discussion: https://postgr.es/m/ZOxVHQwEC/9X/p/z@paquier.xyz

diff --git a/src/backend/libpq/pqmq.c b/src/backend/libpq/pqmq.c
index 253181f47a9b3384b9701ec2337c4737517b06f5..38b042804c3448113ddeca9ddc38c426cca3bdb1 100644 (file)
--- a/src/backend/libpq/pqmq.c
+++ b/src/backend/libpq/pqmq.c
@@ -182,7 +182,7 @@ mq_putmessage(char msgtype, const char *s, size_t len)
                        break;
 
                (void) WaitLatch(MyLatch, WL_LATCH_SET | WL_EXIT_ON_PM_DEATH, 0,
-                                                WAIT_EVENT_MQ_PUT_MESSAGE);
+                                                WAIT_EVENT_MESSAGE_QUEUE_PUT_MESSAGE);
                ResetLatch(MyLatch);
                CHECK_FOR_INTERRUPTS();
        }

diff --git a/src/backend/replication/walsender.c b/src/backend/replication/walsender.c
index 46e48492ac8ebd99af42457b9ce2aed6b5872154..e250b0567ebbc447ada4934a92bf50d30d29d377 100644 (file)
--- a/src/backend/replication/walsender.c
+++ b/src/backend/replication/walsender.c
@@ -1654,7 +1654,7 @@ WalSndWaitForWal(XLogRecPtr loc)
                if (pq_is_send_pending())
                        wakeEvents |= WL_SOCKET_WRITEABLE;
 
-               WalSndWait(wakeEvents, sleeptime, WAIT_EVENT_WAL_SENDER_WAIT_WAL);
+               WalSndWait(wakeEvents, sleeptime, WAIT_EVENT_WAL_SENDER_WAIT_FOR_WAL);
        }
 
        /* reactivate latch so WalSndLoop knows to continue */

diff --git a/src/backend/storage/ipc/shm_mq.c b/src/backend/storage/ipc/shm_mq.c
index d134a09a197b5df75513191e9b7fb01fc1504c8c..06d6b7352782d00ad60767898f4b8b5f53ff5e23 100644 (file)
--- a/src/backend/storage/ipc/shm_mq.c
+++ b/src/backend/storage/ipc/shm_mq.c
@@ -1017,7 +1017,7 @@ shm_mq_send_bytes(shm_mq_handle *mqh, Size nbytes, const void *data,
                         * cheaper than setting one that has been reset.
                         */
                        (void) WaitLatch(MyLatch, WL_LATCH_SET | WL_EXIT_ON_PM_DEATH, 0,
-                                                        WAIT_EVENT_MQ_SEND);
+                                                        WAIT_EVENT_MESSAGE_QUEUE_SEND);
 
                        /* Reset the latch so we don't spin. */
                        ResetLatch(MyLatch);
@@ -1163,7 +1163,7 @@ shm_mq_receive_bytes(shm_mq_handle *mqh, Size bytes_needed, bool nowait,
                 * setting one that has been reset.
                 */
                (void) WaitLatch(MyLatch, WL_LATCH_SET | WL_EXIT_ON_PM_DEATH, 0,
-                                                WAIT_EVENT_MQ_RECEIVE);
+                                                WAIT_EVENT_MESSAGE_QUEUE_RECEIVE);
 
                /* Reset the latch so we don't spin. */
                ResetLatch(MyLatch);
@@ -1252,7 +1252,7 @@ shm_mq_wait_internal(shm_mq *mq, PGPROC **ptr, BackgroundWorkerHandle *handle)
 
                /* Wait to be signaled. */
                (void) WaitLatch(MyLatch, WL_LATCH_SET | WL_EXIT_ON_PM_DEATH, 0,
-                                                WAIT_EVENT_MQ_INTERNAL);
+                                                WAIT_EVENT_MESSAGE_QUEUE_INTERNAL);
 
                /* Reset the latch so we don't spin. */
                ResetLatch(MyLatch);

diff --git a/src/backend/utils/activity/wait_event_names.txt b/src/backend/utils/activity/wait_event_names.txt
index 06a1a3df9bec24613e7c4d445d26f0cca156ec2a..ca28d9e7641e8fa87741b27d4b19467e64a1e5bf 100644 (file)
--- a/src/backend/utils/activity/wait_event_names.txt
+++ b/src/backend/utils/activity/wait_event_names.txt
@@ -45,15 +45,15 @@
 Section: ClassName - WaitEventActivity
 
 WAIT_EVENT_ARCHIVER_MAIN       ArchiverMain    "Waiting in main loop of archiver process."
-WAIT_EVENT_AUTOVACUUM_MAIN     AutoVacuumMain  "Waiting in main loop of autovacuum launcher process."
-WAIT_EVENT_BGWRITER_HIBERNATE  BgWriterHibernate       "Waiting in background writer process, hibernating."
-WAIT_EVENT_BGWRITER_MAIN       BgWriterMain    "Waiting in main loop of background writer process."
+WAIT_EVENT_AUTOVACUUM_MAIN     AutovacuumMain  "Waiting in main loop of autovacuum launcher process."
+WAIT_EVENT_BGWRITER_HIBERNATE  BgwriterHibernate       "Waiting in background writer process, hibernating."
+WAIT_EVENT_BGWRITER_MAIN       BgwriterMain    "Waiting in main loop of background writer process."
 WAIT_EVENT_CHECKPOINTER_MAIN   CheckpointerMain        "Waiting in main loop of checkpointer process."
 WAIT_EVENT_LOGICAL_APPLY_MAIN  LogicalApplyMain        "Waiting in main loop of logical replication apply process."
 WAIT_EVENT_LOGICAL_LAUNCHER_MAIN       LogicalLauncherMain     "Waiting in main loop of logical replication launcher process."
 WAIT_EVENT_LOGICAL_PARALLEL_APPLY_MAIN LogicalParallelApplyMain        "Waiting in main loop of logical replication parallel apply process."
 WAIT_EVENT_RECOVERY_WAL_STREAM RecoveryWalStream       "Waiting in main loop of startup process for WAL to arrive, during streaming recovery."
-WAIT_EVENT_SYSLOGGER_MAIN      SysLoggerMain   "Waiting in main loop of syslogger process."
+WAIT_EVENT_SYSLOGGER_MAIN      SysloggerMain   "Waiting in main loop of syslogger process."
 WAIT_EVENT_WAL_RECEIVER_MAIN   WalReceiverMain "Waiting in main loop of WAL receiver process."
 WAIT_EVENT_WAL_SENDER_MAIN     WalSenderMain   "Waiting in main loop of WAL sender process."
 WAIT_EVENT_WAL_WRITER_MAIN     WalWriterMain   "Waiting in main loop of WAL writer process."
@@ -71,11 +71,11 @@ Section: ClassName - WaitEventClient
 
 WAIT_EVENT_CLIENT_READ ClientRead      "Waiting to read data from the client."
 WAIT_EVENT_CLIENT_WRITE        ClientWrite     "Waiting to write data to the client."
-WAIT_EVENT_GSS_OPEN_SERVER     GSSOpenServer   "Waiting to read data from the client while establishing a GSSAPI session."
-WAIT_EVENT_LIBPQWALRECEIVER_CONNECT    LibPQWalReceiverConnect "Waiting in WAL receiver to establish connection to remote server."
-WAIT_EVENT_LIBPQWALRECEIVER_RECEIVE    LibPQWalReceiverReceive "Waiting in WAL receiver to receive data from remote server."
-WAIT_EVENT_SSL_OPEN_SERVER     SSLOpenServer   "Waiting for SSL while attempting connection."
-WAIT_EVENT_WAL_SENDER_WAIT_WAL WalSenderWaitForWAL     "Waiting for WAL to be flushed in WAL sender process."
+WAIT_EVENT_GSS_OPEN_SERVER     GssOpenServer   "Waiting to read data from the client while establishing a GSSAPI session."
+WAIT_EVENT_LIBPQWALRECEIVER_CONNECT    LibpqwalreceiverConnect "Waiting in WAL receiver to establish connection to remote server."
+WAIT_EVENT_LIBPQWALRECEIVER_RECEIVE    LibpqwalreceiverReceive "Waiting in WAL receiver to receive data from remote server."
+WAIT_EVENT_SSL_OPEN_SERVER     SslOpenServer   "Waiting for SSL while attempting connection."
+WAIT_EVENT_WAL_SENDER_WAIT_FOR_WAL     WalSenderWaitForWal     "Waiting for WAL to be flushed in WAL sender process."
 WAIT_EVENT_WAL_SENDER_WRITE_DATA       WalSenderWriteData      "Waiting for any activity when processing replies from WAL receiver in WAL sender process."
 
 
@@ -93,10 +93,10 @@ WAIT_EVENT_ARCHIVE_CLEANUP_COMMAND  ArchiveCleanupCommand   "Waiting for <xref link
 WAIT_EVENT_ARCHIVE_COMMAND     ArchiveCommand  "Waiting for <xref linkend="guc-archive-command"/> to complete."
 WAIT_EVENT_BACKEND_TERMINATION BackendTermination      "Waiting for the termination of another backend."
 WAIT_EVENT_BACKUP_WAIT_WAL_ARCHIVE     BackupWaitWalArchive    "Waiting for WAL files required for a backup to be successfully archived."
-WAIT_EVENT_BGWORKER_SHUTDOWN   BgWorkerShutdown        "Waiting for background worker to shut down."
-WAIT_EVENT_BGWORKER_STARTUP    BgWorkerStartup "Waiting for background worker to start up."
+WAIT_EVENT_BGWORKER_SHUTDOWN   BgworkerShutdown        "Waiting for background worker to shut down."
+WAIT_EVENT_BGWORKER_STARTUP    BgworkerStartup "Waiting for background worker to start up."
 WAIT_EVENT_BTREE_PAGE  BtreePage       "Waiting for the page number needed to continue a parallel B-tree scan to become available."
-WAIT_EVENT_BUFFER_IO   BufferIO        "Waiting for buffer I/O to complete."
+WAIT_EVENT_BUFFER_IO   BufferIo        "Waiting for buffer I/O to complete."
 WAIT_EVENT_CHECKPOINT_DONE     CheckpointDone  "Waiting for a checkpoint to complete."
 WAIT_EVENT_CHECKPOINT_START    CheckpointStart "Waiting for a checkpoint to start."
 WAIT_EVENT_EXECUTE_GATHER      ExecuteGather   "Waiting for activity from a child process while executing a <literal>Gather</literal> plan node."
@@ -119,14 +119,14 @@ WAIT_EVENT_LOGICAL_APPLY_SEND_DATA        LogicalApplySendData    "Waiting for a logical r
 WAIT_EVENT_LOGICAL_PARALLEL_APPLY_STATE_CHANGE LogicalParallelApplyStateChange "Waiting for a logical replication parallel apply process to change state."
 WAIT_EVENT_LOGICAL_SYNC_DATA   LogicalSyncData "Waiting for a logical replication remote server to send data for initial table synchronization."
 WAIT_EVENT_LOGICAL_SYNC_STATE_CHANGE   LogicalSyncStateChange  "Waiting for a logical replication remote server to change state."
-WAIT_EVENT_MQ_INTERNAL MessageQueueInternal    "Waiting for another process to be attached to a shared message queue."
-WAIT_EVENT_MQ_PUT_MESSAGE      MessageQueuePutMessage  "Waiting to write a protocol message to a shared message queue."
-WAIT_EVENT_MQ_RECEIVE  MessageQueueReceive     "Waiting to receive bytes from a shared message queue."
-WAIT_EVENT_MQ_SEND     MessageQueueSend        "Waiting to send bytes to a shared message queue."
+WAIT_EVENT_MESSAGE_QUEUE_INTERNAL      MessageQueueInternal    "Waiting for another process to be attached to a shared message queue."
+WAIT_EVENT_MESSAGE_QUEUE_PUT_MESSAGE   MessageQueuePutMessage  "Waiting to write a protocol message to a shared message queue."
+WAIT_EVENT_MESSAGE_QUEUE_RECEIVE       MessageQueueReceive     "Waiting to receive bytes from a shared message queue."
+WAIT_EVENT_MESSAGE_QUEUE_SEND  MessageQueueSend        "Waiting to send bytes to a shared message queue."
 WAIT_EVENT_PARALLEL_BITMAP_SCAN        ParallelBitmapScan      "Waiting for parallel bitmap scan to become initialized."
 WAIT_EVENT_PARALLEL_CREATE_INDEX_SCAN  ParallelCreateIndexScan "Waiting for parallel <command>CREATE INDEX</command> workers to finish heap scan."
 WAIT_EVENT_PARALLEL_FINISH     ParallelFinish  "Waiting for parallel workers to finish computing."
-WAIT_EVENT_PROCARRAY_GROUP_UPDATE      ProcArrayGroupUpdate    "Waiting for the group leader to clear the transaction ID at end of a parallel operation."
+WAIT_EVENT_PROCARRAY_GROUP_UPDATE      ProcarrayGroupUpdate    "Waiting for the group leader to clear the transaction ID at end of a parallel operation."
 WAIT_EVENT_PROC_SIGNAL_BARRIER ProcSignalBarrier       "Waiting for a barrier event to be processed by all backends."
 WAIT_EVENT_PROMOTE     Promote "Waiting for standby promotion."
 WAIT_EVENT_RECOVERY_CONFLICT_SNAPSHOT  RecoveryConflictSnapshot        "Waiting for recovery conflict resolution for a vacuum cleanup."
@@ -170,12 +170,12 @@ WAIT_EVENT_VACUUM_TRUNCATE        VacuumTruncate  "Waiting to acquire an exclusive lock
 
 Section: ClassName - WaitEventIO
 
-WAIT_EVENT_BASEBACKUP_READ     BaseBackupRead  "Waiting for base backup to read from a file."
-WAIT_EVENT_BASEBACKUP_SYNC     BaseBackupSync  "Waiting for data written by a base backup to reach durable storage."
-WAIT_EVENT_BASEBACKUP_WRITE    BaseBackupWrite "Waiting for base backup to write to a file."
-WAIT_EVENT_BUFFILE_READ        BufFileRead     "Waiting for a read from a buffered file."
-WAIT_EVENT_BUFFILE_WRITE       BufFileWrite    "Waiting for a write to a buffered file."
-WAIT_EVENT_BUFFILE_TRUNCATE    BufFileTruncate "Waiting for a buffered file to be truncated."
+WAIT_EVENT_BASEBACKUP_READ     BasebackupRead  "Waiting for base backup to read from a file."
+WAIT_EVENT_BASEBACKUP_SYNC     BasebackupSync  "Waiting for data written by a base backup to reach durable storage."
+WAIT_EVENT_BASEBACKUP_WRITE    BasebackupWrite "Waiting for base backup to write to a file."
+WAIT_EVENT_BUFFILE_READ        BuffileRead     "Waiting for a read from a buffered file."
+WAIT_EVENT_BUFFILE_WRITE       BuffileWrite    "Waiting for a write to a buffered file."
+WAIT_EVENT_BUFFILE_TRUNCATE    BuffileTruncate "Waiting for a buffered file to be truncated."
 WAIT_EVENT_CONTROL_FILE_READ   ControlFileRead "Waiting for a read from the <filename>pg_control</filename> file."
 WAIT_EVENT_CONTROL_FILE_SYNC   ControlFileSync "Waiting for the <filename>pg_control</filename> file to reach durable storage."
 WAIT_EVENT_CONTROL_FILE_SYNC_UPDATE    ControlFileSyncUpdate   "Waiting for an update to the <filename>pg_control</filename> file to reach durable storage."
@@ -191,15 +191,15 @@ WAIT_EVENT_DATA_FILE_READ DataFileRead    "Waiting for a read from a relation data
 WAIT_EVENT_DATA_FILE_SYNC      DataFileSync    "Waiting for changes to a relation data file to reach durable storage."
 WAIT_EVENT_DATA_FILE_TRUNCATE  DataFileTruncate        "Waiting for a relation data file to be truncated."
 WAIT_EVENT_DATA_FILE_WRITE     DataFileWrite   "Waiting for a write to a relation data file."
-WAIT_EVENT_DSM_ALLOCATE        DSMAllocate     "Waiting for a dynamic shared memory segment to be allocated."
-WAIT_EVENT_DSM_FILL_ZERO_WRITE DSMFillZeroWrite        "Waiting to fill a dynamic shared memory backing file with zeroes."
-WAIT_EVENT_LOCK_FILE_ADDTODATADIR_READ LockFileAddToDataDirRead        "Waiting for a read while adding a line to the data directory lock file."
-WAIT_EVENT_LOCK_FILE_ADDTODATADIR_SYNC LockFileAddToDataDirSync        "Waiting for data to reach durable storage while adding a line to the data directory lock file."
-WAIT_EVENT_LOCK_FILE_ADDTODATADIR_WRITE        LockFileAddToDataDirWrite       "Waiting for a write while adding a line to the data directory lock file."
+WAIT_EVENT_DSM_ALLOCATE        DsmAllocate     "Waiting for a dynamic shared memory segment to be allocated."
+WAIT_EVENT_DSM_FILL_ZERO_WRITE DsmFillZeroWrite        "Waiting to fill a dynamic shared memory backing file with zeroes."
+WAIT_EVENT_LOCK_FILE_ADDTODATADIR_READ LockFileAddtodatadirRead        "Waiting for a read while adding a line to the data directory lock file."
+WAIT_EVENT_LOCK_FILE_ADDTODATADIR_SYNC LockFileAddtodatadirSync        "Waiting for data to reach durable storage while adding a line to the data directory lock file."
+WAIT_EVENT_LOCK_FILE_ADDTODATADIR_WRITE        LockFileAddtodatadirWrite       "Waiting for a write while adding a line to the data directory lock file."
 WAIT_EVENT_LOCK_FILE_CREATE_READ       LockFileCreateRead      "Waiting to read while creating the data directory lock file."
 WAIT_EVENT_LOCK_FILE_CREATE_SYNC       LockFileCreateSync      "Waiting for data to reach durable storage while creating the data directory lock file."
 WAIT_EVENT_LOCK_FILE_CREATE_WRITE      LockFileCreateWrite     "Waiting for a write while creating the data directory lock file."
-WAIT_EVENT_LOCK_FILE_RECHECKDATADIR_READ       LockFileReCheckDataDirRead      "Waiting for a read during recheck of the data directory lock file."
+WAIT_EVENT_LOCK_FILE_RECHECKDATADIR_READ       LockFileRecheckdatadirRead      "Waiting for a read during recheck of the data directory lock file."
 WAIT_EVENT_LOGICAL_REWRITE_CHECKPOINT_SYNC     LogicalRewriteCheckpointSync    "Waiting for logical rewrite mappings to reach durable storage during a checkpoint."
 WAIT_EVENT_LOGICAL_REWRITE_MAPPING_SYNC        LogicalRewriteMappingSync       "Waiting for mapping data to reach durable storage during a logical rewrite."
 WAIT_EVENT_LOGICAL_REWRITE_MAPPING_WRITE       LogicalRewriteMappingWrite      "Waiting for a write of mapping data during a logical rewrite."
@@ -216,10 +216,10 @@ WAIT_EVENT_REPLICATION_SLOT_READ  ReplicationSlotRead     "Waiting for a read from a
 WAIT_EVENT_REPLICATION_SLOT_RESTORE_SYNC       ReplicationSlotRestoreSync      "Waiting for a replication slot control file to reach durable storage while restoring it to memory."
 WAIT_EVENT_REPLICATION_SLOT_SYNC       ReplicationSlotSync     "Waiting for a replication slot control file to reach durable storage."
 WAIT_EVENT_REPLICATION_SLOT_WRITE      ReplicationSlotWrite    "Waiting for a write to a replication slot control file."
-WAIT_EVENT_SLRU_FLUSH_SYNC     SLRUFlushSync   "Waiting for SLRU data to reach durable storage during a checkpoint or database shutdown."
-WAIT_EVENT_SLRU_READ   SLRURead        "Waiting for a read of an SLRU page."
-WAIT_EVENT_SLRU_SYNC   SLRUSync        "Waiting for SLRU data to reach durable storage following a page write."
-WAIT_EVENT_SLRU_WRITE  SLRUWrite       "Waiting for a write of an SLRU page."
+WAIT_EVENT_SLRU_FLUSH_SYNC     SlruFlushSync   "Waiting for SLRU data to reach durable storage during a checkpoint or database shutdown."
+WAIT_EVENT_SLRU_READ   SlruRead        "Waiting for a read of an SLRU page."
+WAIT_EVENT_SLRU_SYNC   SlruSync        "Waiting for SLRU data to reach durable storage following a page write."
+WAIT_EVENT_SLRU_WRITE  SlruWrite       "Waiting for a write of an SLRU page."
 WAIT_EVENT_SNAPBUILD_READ      SnapbuildRead   "Waiting for a read of a serialized historical catalog snapshot."
 WAIT_EVENT_SNAPBUILD_SYNC      SnapbuildSync   "Waiting for a serialized historical catalog snapshot to reach durable storage."
 WAIT_EVENT_SNAPBUILD_WRITE     SnapbuildWrite  "Waiting for a write of a serialized historical catalog snapshot."
@@ -232,18 +232,18 @@ WAIT_EVENT_TWOPHASE_FILE_READ     TwophaseFileRead        "Waiting for a read of a two phas
 WAIT_EVENT_TWOPHASE_FILE_SYNC  TwophaseFileSync        "Waiting for a two phase state file to reach durable storage."
 WAIT_EVENT_TWOPHASE_FILE_WRITE TwophaseFileWrite       "Waiting for a write of a two phase state file."
 WAIT_EVENT_VERSION_FILE_WRITE  VersionFileWrite        "Waiting for the version file to be written while creating a database."
-WAIT_EVENT_WALSENDER_TIMELINE_HISTORY_READ     WALSenderTimelineHistoryRead    "Waiting for a read from a timeline history file during a walsender timeline command."
-WAIT_EVENT_WAL_BOOTSTRAP_SYNC  WALBootstrapSync        "Waiting for WAL to reach durable storage during bootstrapping."
-WAIT_EVENT_WAL_BOOTSTRAP_WRITE WALBootstrapWrite       "Waiting for a write of a WAL page during bootstrapping."
-WAIT_EVENT_WAL_COPY_READ       WALCopyRead     "Waiting for a read when creating a new WAL segment by copying an existing one."
-WAIT_EVENT_WAL_COPY_SYNC       WALCopySync     "Waiting for a new WAL segment created by copying an existing one to reach durable storage."
-WAIT_EVENT_WAL_COPY_WRITE      WALCopyWrite    "Waiting for a write when creating a new WAL segment by copying an existing one."
-WAIT_EVENT_WAL_INIT_SYNC       WALInitSync     "Waiting for a newly initialized WAL file to reach durable storage."
-WAIT_EVENT_WAL_INIT_WRITE      WALInitWrite    "Waiting for a write while initializing a new WAL file."
-WAIT_EVENT_WAL_READ    WALRead "Waiting for a read from a WAL file."
-WAIT_EVENT_WAL_SYNC    WALSync "Waiting for a WAL file to reach durable storage."
-WAIT_EVENT_WAL_SYNC_METHOD_ASSIGN      WALSyncMethodAssign     "Waiting for data to reach durable storage while assigning a new WAL sync method."
-WAIT_EVENT_WAL_WRITE   WALWrite        "Waiting for a write to a WAL file."
+WAIT_EVENT_WALSENDER_TIMELINE_HISTORY_READ     WalsenderTimelineHistoryRead    "Waiting for a read from a timeline history file during a walsender timeline command."
+WAIT_EVENT_WAL_BOOTSTRAP_SYNC  WalBootstrapSync        "Waiting for WAL to reach durable storage during bootstrapping."
+WAIT_EVENT_WAL_BOOTSTRAP_WRITE WalBootstrapWrite       "Waiting for a write of a WAL page during bootstrapping."
+WAIT_EVENT_WAL_COPY_READ       WalCopyRead     "Waiting for a read when creating a new WAL segment by copying an existing one."
+WAIT_EVENT_WAL_COPY_SYNC       WalCopySync     "Waiting for a new WAL segment created by copying an existing one to reach durable storage."
+WAIT_EVENT_WAL_COPY_WRITE      WalCopyWrite    "Waiting for a write when creating a new WAL segment by copying an existing one."
+WAIT_EVENT_WAL_INIT_SYNC       WalInitSync     "Waiting for a newly initialized WAL file to reach durable storage."
+WAIT_EVENT_WAL_INIT_WRITE      WalInitWrite    "Waiting for a write while initializing a new WAL file."
+WAIT_EVENT_WAL_READ    WalRead "Waiting for a read from a WAL file."
+WAIT_EVENT_WAL_SYNC    WalSync "Waiting for a WAL file to reach durable storage."
+WAIT_EVENT_WAL_SYNC_METHOD_ASSIGN      WalSyncMethodAssign     "Waiting for data to reach durable storage while assigning a new WAL sync method."
+WAIT_EVENT_WAL_WRITE   WalWrite        "Waiting for a write to a WAL file."
 
 
 #