14 Commits

Author	SHA1	Message	Date
Tom Lane	6b516f5951	Fix performance problems in TOAST compressor. The management of ... search lists was broken in such a way that only the most recent instance of a given hash code would ever be searched, thus possibly missing longer matches further back. Fixing this gave 5 to 10% compression improvement on some text test cases. Additional small tweaks to improve speed of inner loops a little bit. There is no compatibility issue created by this change, since the compressed data format and decompression algorithm don't change.	2001-11-17 06:09:30 +00:00
Bruce Momjian	b81844b173	pgindent run on all C files. Java run to follow. initdb/regression ... tests pass.	2001-10-25 05:50:21 +00:00
Bruce Momjian	fde8edaf53	Add do { ... } while (0) to more bad macros.	2001-10-25 01:29:37 +00:00
Bruce Momjian	0686d49da0	Remove dashes in comments that don't need them, rewrap with pgindent.	2001-03-22 06:16:21 +00:00
Bruce Momjian	9e1552607a	pgindent run. Make it all clean.	2001-03-22 04:01:46 +00:00
Bruce Momjian	87c0e623ba	New diff that now covers the entire tree. Applying this gets postgresql ... working on the VERY latest version of BeOS. I'm sure there will be alot of comments, but then if there weren't I'd be disappointed! Thanks for your continuing efforts to get this into your tree. Haven't bothered with the new files as they haven't changed. BTW Peter, the compiler is "broken" about the bool define and so on. I'm filing a bug report to try and get it addressed. Hopefully then we can tidy up the code a bit. I await the replies with interest :) David Reid	2000-10-03 03:11:26 +00:00
Jan Wieck	9b0fe4eee2	Fixed memory allocation problems when compressing multi-MB ... items. Lookup history is now a double linked list, used in a wrap-around style. Jan	2000-07-20 14:23:28 +00:00
Jan Wieck	b027ad9a7a	Added comments about the compression algorithm as requested by Tom ... Jan	2000-07-06 21:02:07 +00:00
Jan Wieck	57d8080a40	TOAST ... WARNING: This is actually broken - we have self-deadlocks due to concurrent changes in buffer management. Vadim and me are working on it. Jan	2000-07-03 23:10:14 +00:00
Bruce Momjian	a12a23f0d0	Remove unused include files. Do not touch /port or includes used by defines.	2000-05-30 00:49:57 +00:00
Bruce Momjian	52f77df613	Ye-old pgindent run. Same 4-space tabs.	2000-04-12 17:17:23 +00:00
Jan Wieck	4069d48aa7	Added another single byte oriented decompressor, useful for ... comparision functions. Added all lztext comparision functions, operators and a default operator class for nbtree on lztext. Jan	1999-11-25 01:28:07 +00:00
Jan Wieck	211ed36635	Some minor corrections to the LZ compression. In fact I wanted to ... HAVE the required OID's first. Jan	1999-11-17 22:18:46 +00:00
Jan Wieck	79c3b71c1b	The new LZ compression and an lztext data type based on it. ... Jan	1999-11-17 21:21:51 +00:00