From the official doc link i shared already: UNLOGGED If specified, the table is created as an unlogged table. Data written to unlogged tables is not written

From the official doc link i shared already: UNLOGGED If specified, the table is created as an unlogged table. Data written to unlogged tables is not written to the write-ahead log (see Chapter 29), which makes them considerably faster than ordinary tables. However, they are not crash-safe: an unlogged table is automatically truncated after a crash or unclean shutdown. The contents of an unlogged table are also not replicated to standby servers. Any indexes created on an unlogged table are automatically unlogged as well.