67.5. The Initialization Fork (original) (raw)

This documentation is for an unsupported version of PostgreSQL.
You may want to view the same page for thecurrent version, or one of the other supported versions listed above instead.

Each unlogged table, and each index on an unlogged table, has an initialization fork. The initialization fork is an empty table or index of the appropriate type. When an unlogged table must be reset to empty due to a crash, the initialization fork is copied over the main fork, and any other forks are erased (they will be recreated automatically as needed).