pg_waldump: update page

pages/common/pg_waldump.md

@@ -1,36 +1,32 @@
 # pg_waldump
 
-> Display a human-readable rendering of the write-ahead log (WAL).
+> Display a human-readable rendering of the write-ahead log of a PostgreSQL database cluster.
 > More information: <https://www.postgresql.org/docs/current/pgwaldump.html>.
 
-- Basic invocation reading a WAL segment (or range):
+- Display WAL records from a specific segment:
 
-`pg_waldump {{start_segment}} {{end_segment}}`
-
-- Specify the WAL file directory:
+`pg_waldump {{start_segment}}`
 
-`pg_waldump {{start_segment}} {{end_segment}} {{[-p|--path]}} {{path}}`
+- Display WAL records between two segments:
 
-- Start from a particular WAL location (LSN):
-
-`pg_waldump {{start_segment}} {{end_segment}} {{[-s|--start]}} {{lsn}}`
+`pg_waldump {{start_segment}} {{end_segment}}`
 
-- Stop at a particular WAL location (LSN):
+- Follow WAL in real-time:
 
-`pg_waldump {{start_segment}} {{end_segment}} {{[-e|--end]}} {{lsn}}`
+`pg_waldump {{start_segment}} {{[-f|--follow]}}`
 
-- Follow new WAL entries as they arrive:
+- Display records with full page images:
 
-`pg_waldump {{start_segment}} {{end_segment}} {{[-f|--follow]}}`
+`pg_waldump {{start_segment}} {{[-w|--fullpage]}}`
 
-- Limit number of records shown:
+- Display summary statistics instead of individual records:
 
-`pg_waldump {{start_segment}} {{end_segment}} {{[-n|--limit]}} {{count}}`
+`pg_waldump {{start_segment}} {{[-z|--stats]}}`
 
-- Quiet mode (suppress output except errors):
+- Display help:
 
-`pg_waldump {{start_segment}} {{end_segment}} {{[-q|--quiet]}}`
+`pg_waldump {{[-?|--help]}}`
 
-- Filter by resource manager:
+- Display version:
 
-`pg_waldump {{start_segment}} {{end_segment}} {{[-r|--rmgr]}} {{rmgr_name}}`
+`pg_waldump {{[-V|--version]}}`