On Tue, Aug 31, 2010 at 8:04 PM, Itagaki Takahiro <itagaki.takah...@gmail.com> wrote: > * How to determine which method was used? > We can get some information from trace_sort logs, > but CLUSTER VERBOSE would be better to log > which CLUSTER method was used.
I wrote a patch to improve CLUSTER VERBOSE (and VACUUM FULL VERBOSE). The patch should be applied after sorted_cluster-20100721.patch . * clustering "schema.table" by index scan on "index" * clustering "schema.table" by sequential scan and sort It also adds VACUUM VERBOSE-like logs: INFO: "table": found 1 removable, 100001 nonremovable row versions in 1655 pages DETAIL: 1 dead row versions cannot be removed yet. CPU 0.03s/0.06u sec elapsed 0.21 sec. Note that the patch says nothing about reindexing. But if required, I'm willing to add some VERBOSE messages for indexes (ex. REINDEX VERBOSE) -- Itagaki Takahiro
cluster_verbose-20100901.patch
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