postgres

Commit Graph

Author	SHA1	Message	Date
Tom Lane	b7883d7e3a	parse_coerce fix allows early simplification of one constant-coercion expression in the rules test.	27 years ago
Tom Lane	fd19a350ea	Revise parse_coerce() to handle coercion of int and float constants, not only string constants, at parse time. Get rid of parser_typecast2(), which is bogus and redundant...	27 years ago
Bruce Momjian	5a76a94e41	Update TODO list.	27 years ago
Tom Lane	b15a7c9fbe	Fix ELF test so it doesn't spit up on all non-ELF systems... use Autoconf-approved method of testing for predefined symbols, and move it down to where we know what compiler to run and how to run it.	27 years ago
Tom Lane	b0984e6995	Add a VACUUM command in hopes of making pg_upgrade usable again in MVCC environment. I do not trust this until Vadim says it's OK...	27 years ago
Michael Meskes	b2a2be4c5a	* empty log message *	27 years ago
Tom Lane	8624ff7612	Further selectivity-estimation work. Speed up eqsel() (it should just call the given operator, not look up an = operator). Fix intltsel() so that all numeric data types are converted to double before trying to estimate where the given comparison value is in the known range of column values. intltsel() still needs work, or replacement, for non-numeric data types ... but for nonintegral numeric types it should now be delivering reasonable estimates.	27 years ago
Marc G. Fournier	d35eebe748	back out last...	27 years ago
Marc G. Fournier	557ff53044	testing somethign...	27 years ago
Bruce Momjian	9032d3f205	autoconf	27 years ago
Bruce Momjian	b2a0a4e8f5	I didn't see any further discussion so here is, I hope, a clean fix to configure.in to determine if a system is ELF or not. Note that some of the tests earlier may be redundant but I took the safest route. D'Arcy J.M. Cain	27 years ago
Bruce Momjian	aa1bbed7da	Update NT readme.	27 years ago
Tom Lane	44878506d8	First step in fixing selectivity-estimation code. eqsel and neqsel now behave as per my suggestions in pghackers a few days ago. selectivity for < > <= >= should work OK for integral types as well, but still need work for nonintegral types. Since these routines have never actually executed before :-(, this may result in some significant changes in the optimizer's choices of execution plans. Let me know if you see any serious misbehavior. CAUTION: THESE CHANGES REQUIRE INITDB. pg_statistic table has changed.	27 years ago
Tom Lane	f851c6b07d	Add another ORDER BY to rules test; got tired of it 'failing' every time I tweak the optimizer...	27 years ago
Tom Lane	970ef45c41	Re-enable pg_upgrade, after adding checks that the source and target databases are of versions it knows about.	27 years ago
Tom Lane	d7f2c5580d	Add some more verbiage to man page's directions for pg_upgrade.	27 years ago
Tom Lane	cf835f97fc	Add comments for attdisbursion field --- NO code change.	27 years ago
Tom Lane	30da344cb1	Update comments about clause selectivity estimation.	27 years ago
Bruce Momjian	44763a2b23	Make usecatupd disabled for normal users, and allow normal users to update temp tables with this setting.	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
Marc G. Fournier	037cac7ca6	There is one section that changed, concernign startup...the rest is just	27 years ago
Marc G. Fournier	63b70d3546	v6.6's HISTORY file should reflect changes that went into all previous	27 years ago
Marc G. Fournier	f08baacfa5	just testing a script...	27 years ago
Bruce Momjian	fca190e102	Remove extra #endif	27 years ago
Marc G. Fournier	5fb84df9b1	Nothing changed, just testing cvslog ...	27 years ago
Bruce Momjian	d41754cea2	Fix description of psql flags -t and -q.	27 years ago
Tom Lane	7d572886d6	Fix coredump seen when doing mergejoin between indexed tables, for example in the regression test database, try select * from tenk1 t1, tenk1 t2 where t1.unique1 = t2.unique2; 6.5 has this same bug ...	27 years ago
Tom Lane	161be69544	Update comments for create_indexscan_node().	27 years ago
Bruce Momjian	12c51d9c6e	Remove comment after optimization flag.	27 years ago
Tom Lane	ecbfafbe0e	Add support for Case exprs to fix_indxqual_references, so that Case works in WHERE join clauses. Temporary patch --- this routine is one of many that ought to be changed to use centralized expression-tree- walking logic.	27 years ago
Tom Lane	6b157f376a	Add equal() funcs for Case nodes ... amazing we had not detected this omission before. Miscellaneous other cleanups.	27 years ago
Bruce Momjian	a06fd1f316	Update TODO list.	27 years ago
Bruce Momjian	8bc25734a1	Update TODO list.	27 years ago
Tom Lane	9682e8081b	Allow a_expr not just AexprConst in the right-hand list of IN and NOT IN operators. Rewrite grotty implementation of IN-list parsing ... look Ma, no global variable ...	27 years ago
Bruce Momjian	bb68f6eaa6	Update TODO list.	27 years ago
Tom Lane	b62fdc13f0	Correct bug in best_innerjoin(): it should check all the rels that the inner path needs to join to, but it was only checking for the first one. Failure could only have been observed with an OR-clause that mentions 3 or more tables, and then only if the bogus path was actually selected as cheapest ...	27 years ago
Tom Lane	2f30d5a34a	My recent optimizer changes caused a different plan to be picked for one of the complex joins in rules test ... leading to a different output ordering ...	27 years ago
Tom Lane	9e7e29e6c9	First cut at doing LIKE/regex indexing optimization in optimizer rather than parser. This has many advantages, such as not getting fooled by chance uses of operator names ~ and ~~ (the operators are identified by OID now), and not creating useless comparison operations in contexts where the comparisons will not actually be used as indexquals. The new code also recognizes exact-match LIKE and regex patterns, and produces an = indexqual instead of >= and <=. This change does NOT fix the problem with non-ASCII locales: the code still doesn't know how to generate an upper bound indexqual for non-ASCII collation order. But it's no worse than before, just the same deficiency in a different place... Also, dike out loc_restrictinfo fields in Plan nodes. These were doing nothing useful in the absence of 'expensive functions' optimization, and they took a considerable amount of processing to fill in.	27 years ago
Bruce Momjian	434df3fb7a	Update TODO list.	27 years ago
Bruce Momjian	32a505e897	Update TODO list.	27 years ago
Tom Lane	49ed4dd779	Further work on planning of indexscans. Cleaned up interfaces to index_selectivity so that it can be handed an indexqual clause list rather than a bunch of assorted derivative data.	27 years ago
Tom Lane	8ae29a1d40	Remove 'restrictinfojoinid' field from RestrictInfo nodes. The only place it was being used was as temporary storage in indxpath.c, and the logic was wrong: the same restrictinfo node could get chosen to carry the info for two different joins. Right fix is to return a second list of unjoined-relids parallel to the list of clause groups.	27 years ago
Tom Lane	ac4913a0dd	Clean up messy clause-selectivity code in clausesel.c; repair bug identified by Hiroshi (incorrect cost attributed to OR clauses after multiple passes through set_rest_selec()). I think the code was trying to allow selectivities of OR subclauses to be passed in from outside, but noplace was actually passing any useful data, and set_rest_selec() was passing wrong data. Restructure representation of "indexqual" in IndexPath nodes so that it is the same as for indxqual in completed IndexScan nodes: namely, a toplevel list with an entry for each pass of the index scan, having sublists that are implicitly-ANDed index qual conditions for that pass. You don't want to know what the old representation was :-( Improve documentation of OR-clause indexscan functions. Remove useless 'notclause' field from RestrictInfo nodes. (This might force an initdb for anyone who has stored rules containing RestrictInfos, but I do not think that RestrictInfo ever appears in completed plans.)	27 years ago
Tom Lane	348bdbce79	Minor code beautification, extensive improvement of comments. This file was full of obsolete and just plain wrong commentary...	27 years ago
Tom Lane	baac6f981e	Exit cleanups I made yesterday caused pq_close() to be invoked during exit from a standalone backend, leading to core dump. This is the cause of the recently reported initdb-time crash :-(. Sorry folks...	27 years ago
Bruce Momjian	66f66343f6	Alpha spinlock fix from Uncle George <gatgul@voicenet.com>	27 years ago
Thomas G. Lockhart	f2f43efbe1	Complete merge of all old man page information. lisp.sgml is a placeholder for Eric Marsden's upcoming contribution. catalogs.sgml is not yet marked up or integrated. It should perhaps become an appendix.	27 years ago
Thomas G. Lockhart	a27512e634	Complete merge of all old man page information. ecpg reference page still needs formatting.	27 years ago
Tom Lane	2aa64f79f5	Plug several holes in backend's ability to cope with unexpected loss of connection to frontend.	27 years ago
Bruce Momjian	991b82ee13	Update TODO list.	27 years ago

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5425 Commits (b7883d7e3a1d7d3d98b2bd8186ddf60011d45bdd) All Branches Search

5425 Commits (b7883d7e3a1d7d3d98b2bd8186ddf60011d45bdd)

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