Ok. Transaction safe truncate is simply transaction safe cluster without the data copy and a slightly different set of permission checks.
I'd like to split cluster_rel() in cluster.c into 2 functions at line 174. The permission checks, locking, etc will remain in cluster_rel(). The bottom half will be turned into a function called rebuild_rel(tableOid Oid, indexOid Oid, dataCopy bool). If dataCopy is set to false, then indexOid may be null -- this will truncate the table. Cluster will set dataCopy to true which will maintain current expectations for cluster. I'll also move TruncateRelation into cluster.c. PreCommit_on_commit_actions() -> ONCOMMIT_DELETE_ROWS is the only location using heap_truncate(). It may be possible to change this and remove heap_truncate() altogether. -- Rod Taylor <[EMAIL PROTECTED]> ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
