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Tom Lane 8c8ba6d11b Add comment on why pulling data from a "name" index column can't crash. ... It's been bothering me for several days that pretending that the cstring data stored in a btree name_ops column is really a "name" Datum could lead to reading past the end of memory. However, given the current memory layout used for index-only scans in the btree code, a crash is in fact not possible. Document that so we don't break it. I have not thought of any other solutions that aren't fairly ugly too, and most of them lose the functionality of index-only scans on name columns altogether, so this seems like the way to go.		14 years ago
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access	Add comment on why pulling data from a "name" index column can't crash.	14 years ago
bootstrap	Simplify handling of the timezone GUC by making initdb choose the default.	15 years ago
catalog	Replace hardcoded switch in object_exists() with a lookup table.	14 years ago
commands	Rearrange the implementation of index-only scans.	14 years ago
executor	Generate index-only scan tuple descriptor from the plan node's indextlist.	14 years ago
foreign	deflist_to_tuplestore dumped core on an option with no value.	15 years ago
lib	Stamp copyrights for year 2011.	15 years ago
libpq	Remove many -Wcast-qual warnings	15 years ago
main	Add postmaster -C option to query configuration parameters, and have	14 years ago
nodes	Rearrange the implementation of index-only scans.	14 years ago
optimizer	Consider index-only scans even when there is no matching qual or ORDER BY.	14 years ago
parser	Don't let transform_null_equals=on affect CASE foo WHEN NULL ... constructs.	14 years ago
po	Translation updates	15 years ago
port	Remove unnecessary #include references, per pgrminclude script.	15 years ago
postmaster	Add postmaster -C option to query configuration parameters, and have	14 years ago
regex	Add markers for skips.	15 years ago
replication	Ensure walsenders can be SIGTERMed while in non-walsender code	14 years ago
rewrite	Rearrange planner to save the whole PlannerInfo (subroot) for a subquery.	15 years ago
snowball	Remove unnecessary #include references, per pgrminclude script.	15 years ago
storage	Repair breakage in VirtualXactLock.	14 years ago
tcop	Support index-only scans using the visibility map to avoid heap fetches.	14 years ago
tsearch	Remove many -Wcast-qual warnings	15 years ago
utils	Rearrange the implementation of index-only scans.	14 years ago
.gitignore	Add gitignore for mingw/cygwin build outputs	15 years ago
Makefile	Fix symlink for errcodes.h so it works in VPATH builds from tarballs.	15 years ago
common.mk	Workaround for recursive make breakage	15 years ago
nls.mk	Add the possibility to pass --flag arguments to xgettext calls	15 years ago