3708 Commits (0dbb7aeac4235c8d3a026adbe8585e2cbdf2771e)

Author	SHA1	Message	Date
Tom Lane	39b7ec3309	Create a distinction between Lists of integers and Lists of OIDs, to get ... rid of the assumption that sizeof(Oid)==sizeof(int). This is one small step towards someday supporting 8-byte OIDs. For the moment, it doesn't do much except get rid of a lot of unsightly casts.	23 years ago
Tom Lane	c15a4c2aef	Replace planner's representation of relation sets, per pghackers discussion. ... Instead of Lists of integers, we now store variable-length bitmap sets. This should be faster as well as less error-prone.	23 years ago
Tom Lane	77ede8900d	Create a GUC variable REGEX_FLAVOR to control the type of regular ... expression accepted by the regex operators, per discussion yesterday. Along the way, reduce deadlock_timeout from PGC_POSTMASTER to PGC_SIGHUP category. It is probably best to insist that all backends share the same setting, but that doesn't mean it has to be frozen at startup.	23 years ago
Tom Lane	7bcc6d98fb	Replace regular expression package with Henry Spencer's latest version ... (extracted from Tcl 8.4.1 release, as Henry still hasn't got round to making it a separate library). This solves a performance problem for multibyte, as well as upgrading our regexp support to match recent Tcl and nearly match recent Perl.	23 years ago
Bruce Momjian	865429e00f	Update Hungarian FAQ, from Laszlo Hornyak	23 years ago
Bruce Momjian	bf4bf092e5	Revert doc change so we mention moving past the last row of a cursor.	23 years ago
Bruce Momjian	464598b637	Add mention of CURRENT_SCHEMA for object creation.	23 years ago
Bruce Momjian	802a4d4111	Change MOVE LAST to MOVE ALL. ... Standard says FETCH LAST is after last row, and we don't do that.	23 years ago
Tom Lane	c7bceca156	Implement EXPLAIN EXECUTE. By Neil Conway, with some kibitzing from ... Tom Lane.	23 years ago
Tom Lane	6adb475f77	Update release history for 7.3.2.	23 years ago
Tom Lane	6ba8af9d5d	Remove restriction that cast functions cannot be volatile. This ... restriction was debatable to begin with, but it has now become obvious that it breaks forward-porting of user-defined types; contrib/lo being the most salient example.	23 years ago
Tom Lane	bd96dd1184	Allow a time zone to be specified (and silently ignored) in the input ... for type 'time without time zone', as we already did for type 'timestamp without time zone'. This patch was proposed by Tom Lockhart on 7-Nov-02, but he never got around to applying it. Adjust regression tests and documentation to match.	23 years ago
Tom Lane	0de771dd5c	Fix typo, per Neil Conway.	23 years ago
Tom Lane	4ec457ad58	Fix regression in .pgpass support. From Neil Conway.	23 years ago
Tom Lane	887edf4ff7	Update release history for 7.2.4.	23 years ago
Tom Lane	23b8a0ce61	Repair array subscript overrun identified by Yichen Xie. Reduce the ... value of MAX_TIME_PRECISION in floating-point-timestamp-storage case from 13 to 10, which is as much as time_out is actually willing to print. (The alternative of increasing the number of digits we are willing to print looks risky; we might find ourselves printing roundoff garbage.)	23 years ago
Tom Lane	2e46b762eb	Extend join-selectivity API (oprjoin interface) so that join type is ... passed to join selectivity estimators. Make use of this in eqjoinsel to derive non-bogus selectivity for IN clauses. Further tweaking of cost estimation for IN. initdb forced because of pg_proc.h changes.	23 years ago
Bruce Momjian	f21fb30dfc	Revert optimizer page count change.	23 years ago
Bruce Momjian	d42a476621	Add blank line.	23 years ago
Bruce Momjian	c177ba99bd	Move: ... > * Add the concept of dataspaces/tablespaces [tablespaces] 307d307 < * Add the concept of dataspaces/tablespaces [tablespaces]	23 years ago
Bruce Momjian	9b9b14915b	Fix typo 233 pages -> 333 pages.	23 years ago
Bruce Momjian	b2773d4099	Remove mention of 6.5 max backends.	23 years ago
Bruce Momjian	4dc2bceef4	Mark IN performance problem as fixed in 7.4	23 years ago
Bruce Momjian	677d77817d	Add: ... > * Add group object ownership, so groups can rename/drop/grant on objects, > so we can implement roles	23 years ago
Tom Lane	9f5f212475	Allow the planner to collapse explicit inner JOINs together, rather than ... necessarily following the JOIN syntax to develop the query plan. The old behavior is still available by setting GUC variable JOIN_COLLAPSE_LIMIT to 1. Also create a GUC variable FROM_COLLAPSE_LIMIT to control the similar decision about when to collapse sub-SELECT lists into their parent lists. (This behavior existed already, but the limit was always GEQO_THRESHOLD/2; now it's separately adjustable.)	23 years ago
Peter Eisentraut	ef7422510e	Grant options, and cascading revoke. Grant options are allowed only for ... users right now, not groups. Extension of has_foo_privileges functions to query the grant options. Extension of aclitem type to store grantor.	23 years ago
Tom Lane	742403bdad	Update 'Mathematical Functions' table to reflect 7.3 addition of float8 ... forms of ceil(), floor(), sign(). Back-patch this and other recent doc fixes in this file to the 7.3 branch.	23 years ago
Tom Lane	a4482f4c4c	Fix coredump problem in plpgsql's RETURN NEXT. When a SELECT INTO ... that's selecting into a RECORD variable returns zero rows, make it assign an all-nulls row to the RECORD; this is consistent with what happens when the SELECT INTO target is not a RECORD. In support of this, tweak the SPI code so that a valid tuple descriptor is returned even when a SPI select returns no rows.	23 years ago
Tom Lane	bdfbfde1b1	IN clauses appearing at top level of WHERE can now be handled as joins. ... There are two implementation techniques: the executor understands a new JOIN_IN jointype, which emits at most one matching row per left-hand row, or the result of the IN's sub-select can be fed through a DISTINCT filter and then joined as an ordinary relation. Along the way, some minor code cleanup in the optimizer; notably, break out most of the jointree-rearrangement preprocessing in planner.c and put it in a new file prep/prepjointree.c.	23 years ago
Bruce Momjian	be2b660ecd	This patch includes a lot of minor cleanups to the SGML documentation, ... including: - replacing all the appropriate usages of <citetitle>PostgreSQL ...</citetitle> with &cite-user;, &cite-admin;, and so on - fix an omission in the EXECUTE documentation - add some more text to the EXPLAIN documentation - improve the PL/PgSQL RETURN NEXT documentation (more work to do here) - minor markup fixes Neil Conway	23 years ago
Bruce Momjian	d12be5c37b	Add section on testing index scan.	23 years ago
Bruce Momjian	3c731e0ed7	Add dash to: ... set-returning functions or SRF's. for clarity.	23 years ago
Bruce Momjian	606d4f7b38	Oops, put back changes. Those were Peter's, not mine.	23 years ago
Bruce Momjian	57a15288a1	Revert my changes to features.sgml.	23 years ago
Tom Lane	de97072e3c	Allow merge and hash joins to occur on arbitrary expressions (anything not ... containing a volatile function), rather than only on 'Var = Var' clauses as before. This makes it practical to do flatten_join_alias_vars at the start of planning, which in turn eliminates a bunch of klugery inside the planner to deal with alias vars. As a free side effect, we now detect implied equality of non-Var expressions; for example in SELECT ... WHERE a.x = b.y and b.y = 42 we will deduce a.x = 42 and use that as a restriction qual on a. Also, we can remove the restriction introduced 12/5/02 to prevent pullup of subqueries whose targetlists contain sublinks. Still TODO: make statistical estimation routines in selfuncs.c and costsize.c smarter about expressions that are more complex than plain Vars. The need for this is considerably greater now that we have to be able to estimate the suitability of merge and hash join techniques on such expressions.	23 years ago
Bruce Momjian	0eed62f34d	Reorder VARCHAR() to appear before CHAR() in docs.	23 years ago
Bruce Momjian	3b6ca54cda	This patch includes some minor fixes and improvements to the SGML docs ... for PL/PgSQL. Neil Conway	23 years ago
Peter Eisentraut	2160c9177d	Add sql_features table to information schema. Generate the features list ... in the documentation from that same data.	23 years ago
Peter Eisentraut	97f0d0c86f	Escape ampersand.	23 years ago
Bruce Momjian	956762a546	Add: ... > o Allow PL/PgSQL to support array element assignment	23 years ago
Bruce Momjian	4e9face69a	Add Hugarian FAQ, from Laszlo Hornyak	23 years ago
Tom Lane	d4ce5a4f4c	Revise cost_qual_eval() to compute both startup (one-time) and per-tuple ... costs for expression evaluation, not only per-tuple cost as before. This extension is needed in order to deal realistically with hashed or materialized sub-selects.	23 years ago
Tom Lane	b05204ac8a	Fix some minor grammatical errors.	23 years ago
Bruce Momjian	9392c40553	Update CHAR().	23 years ago
Bruce Momjian	6f4855842c	Update CHAR() description.	23 years ago
Bruce Momjian	d340e00626	Update date only.	23 years ago
Bruce Momjian	4976816b03	Improve CHAR() description.	23 years ago
Bruce Momjian	3e54e26bcf	SGML build cleanups from Neil Conway.	23 years ago
Bruce Momjian	161c2a7be6	Fix capitalization.	23 years ago
Bruce Momjian	266eb6ad28	Fix markup problem in link to other SGML file.	23 years ago