user/sven/postgresql.git

Age	Commit message (Collapse)	Author
2003-11-29	$Header: -> $PostgreSQL Changes ...	PostgreSQL Daemon

2003-08-19	Improve dynahash.c's API so that caller can specify the comparison function	Tom Lane
	as well as the hash function (formerly the comparison function was hardwired as memcmp()). This makes it possible to eliminate the special-purpose hashtable management code in execGrouping.c in favor of using dynahash to manage tuple hashtables; which is a win because dynahash knows how to expand a hashtable when the original size estimate was too small, whereas the special-purpose code was too stupid to do that. (See recent gripe from Stephan Szabo about poor performance when hash table size estimate is way off.) Free side benefit: when using string_hash, the default comparison function is now strncmp() instead of memcmp(). This should eliminate some part of the overhead associated with larger NAMEDATALEN values.
2003-08-08	Another pgindent run with updated typedefs.	Bruce Momjian

2003-08-04	Update copyrights to 2003.	Bruce Momjian

2003-08-04	pgindent run.	Bruce Momjian

2003-07-21	Error message editing in backend/executor.	Tom Lane

2003-06-22	Revise hash join and hash aggregation code to use the same datatype-	Tom Lane
	specific hash functions used by hash indexes, rather than the old not-datatype-aware ComputeHashFunc routine. This makes it safe to do hash joining on several datatypes that previously couldn't use hashing. The sets of datatypes that are hash indexable and hash joinable are now exactly the same, whereas before each had some that weren't in the other.
2003-01-12	First cut at implementing IN (and NOT IN) via hashtables. There is	Tom Lane
	more to be done yet, but this is a good start.
2003-01-10	Create a new file executor/execGrouping.c to centralize utility routines	Tom Lane
	shared by nodeGroup, nodeAgg, and soon nodeSubplan.