| From: | Tom Raney <twraney(at)comcast(dot)net> |
|---|---|
| To: | pgsql-patches(at)postgresql(dot)org |
| Subject: | Hash Index Build Patch v2 |
| Date: | 2007-10-21 19:40:04 |
| Message-ID: | 471BAB14.1060101@comcast.net |
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| Thread: | |
| Lists: | pgsql-patches |
This revised version of our patch uses the function estimate_rel_size()
from plancat.c to estimate the number of tuples in the parent relation.
This method is an alternative to scanning the parent relation to
estimate the number of tuples, as we did in the first version of the patch.
-Tom
| Attachment | Content-Type | Size |
|---|---|---|
| tuplegen.c | text/plain | 450 bytes |
| hash_index_build2.patch | text/plain | 19.5 KB |
| hashsort.c | text/plain | 3.1 KB |
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