22 Commits (6f9ff92cc0ff6a07d2fe38abe044286ee98d44a0)

Author	SHA1	Message	Date
Bruce Momjian	6f9ff92cc0	Tid access method feature from Hiroshi Inoue, Inoue@tpf.co.jp	26 years ago
Tom Lane	e6381966c1	Major planner/optimizer revision: get rid of PathOrder node type, ... store all ordering information in pathkeys lists (which are now lists of lists of PathKeyItem nodes, not just lists of lists of vars). This was a big win --- the code is smaller and IMHO more understandable than it was, even though it handles more cases. I believe the node changes will not force an initdb for anyone; planner nodes don't show up in stored rules.	27 years ago
Tom Lane	e1fad50a5d	Revise generation of hashjoin paths: generate one path per ... hashjoinable clause, not one path for a randomly-chosen element of each set of clauses with the same join operator. That is, if you wrote SELECT ... WHERE t1.f1 = t2.f2 and t1.f3 = t2.f4, and both '=' ops were the same opcode (say, all four fields are int4), then the system would either consider hashing on f1=f2 or on f3=f4, but it would *not* consider both possibilities. Boo hiss. Also, revise estimation of hashjoin costs to include a penalty when the inner join var has a high disbursion --- ie, the most common value is pretty common. This tends to lead to badly skewed hash bucket occupancy and way more comparisons than you'd expect on average. I imagine that the cost calculation still needs tweaking, but at least it generates a more reasonable plan than before on George Young's example.	27 years ago
Tom Lane	04578a9180	Further cleanups of indexqual processing: simplify control ... logic in indxpath.c, avoid generation of redundant indexscan paths for the same relation and index.	27 years ago
Bruce Momjian	4b2c2850bf	Clean up #include in /include directory. Add scripts for checking includes.	27 years ago
Bruce Momjian	fcff1cdf4e	Another pgindent run. Sorry folks.	27 years ago
Bruce Momjian	07842084fe	pgindent run over code.	27 years ago
Bruce Momjian	31cce21fb0	Fix bushy plans. Cleanup.	27 years ago
Bruce Momjian	6724a50787	Change my-function-name-- to my_function_name, and optimizer renames.	27 years ago
Bruce Momjian	c0d17c7aee	JoinPath -> NestPath for nested loop.	27 years ago
Bruce Momjian	9dbb0efb0b	Optmizer cleanup	27 years ago
Bruce Momjian	f859c81c18	Rename Path.keys to Path.pathkeys. Too many 'keys' used for other things.	27 years ago
Bruce Momjian	fa1a8d6a97	OK, folks, here is the pgindent output.	28 years ago
Bruce Momjian	d9be0ff432	MergeSort was sometimes called mergejoin and was confusing. Now ... it is now only mergejoin.	28 years ago
Bruce Momjian	584f9438ca	Rename Rel to RelOptInfo.	28 years ago
Bruce Momjian	a32450a585	pgindent run before 6.3 release, with Thomas' requested changes.	28 years ago
Bruce Momjian	7229513943	Fix prototypes so they don't look like function definitions.	28 years ago
Bruce Momjian	598e86f3b3	Cleanup up include files.	28 years ago
Bruce Momjian	59f6a57e59	Used modified version of indent that understands over 100 typedefs.	29 years ago
Bruce Momjian	319dbfa736	Another PGINDENT run that changes variable indenting and case label indenting. Also static variable indenting.	29 years ago
Bruce Momjian	1ccd423235	Massive commit to run PGINDENT on all *.c and *.h files.	29 years ago
Marc G. Fournier	870be9fa8e	Clean up th ecompile process by centralizing the include files ... - code compile tested, but due to a yet unresolved problem with parse.h's creation, compile not completed...	30 years ago
Marc G. Fournier	d31084e9d1	Postgres95 1.01 Distribution - Virgin Sources	30 years ago