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* Backing out the background writer sync() option.Jan Wieck2004-02-04
| | | | Jan
* Use memmove() rather than memcpy() in set_var_from_var(). If this functionNeil Conway2004-02-04
| | | | | | | is asked to assign a variable to itself, it will result in doing a memcpy() on an entirely-overlapping memory range, which results in undefined behavior according to ANSI C. That said, it is unlikely to actually do anything bad on any sane libc, but this keeps valgrind quiet.
* pwdTom Lane2004-02-03
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* Rename SortMem and VacuumMem to work_mem and maintenance_work_mem.Tom Lane2004-02-03
| | | | | | | Make btree index creation and initial validation of foreign-key constraints use maintenance_work_mem rather than work_mem as their memory limit. Add some code to guc.c to allow these variables to be referenced by their old names in SHOW and SET commands, for backwards compatibility.
* Add function (actually an int4 and an int8 version) that generatesJoe Conway2004-02-03
| | | | | | | | a series of numbers, optionally using an explicit step size other than the default value (one). Use function in the information_schema to replace hard-wired knowledge of INDEX_MAX_KEYS. initdb forced due to pg_proc change. Documentation update still needed -- will be committed separately.
* > src/backend/commands/user.c file has some parse error at repalloc(),Bruce Momjian2004-02-02
| | | | | | | | | | | | | | | | | | | | | | | palloc()$ Fixed. Thanks. > src/backend/postmaster/pgstat.c miss > #include "tcop/tcopprot.h" line. Fixed. > src/utils/dllinit.c wrong include header line at MinGW. > #include <cygwin/version.h> must be not included Fixed. > by the way, > I can't compile eccp because I used lower version bison. > and bin/pg_resetxlog too. in this case I can't find what's wrong. Fixed.
* Fix a read of uninitialized memory in next_token() of hba.c, spotted viaNeil Conway2004-02-02
| | | | | | valgrind: a buffer passed to strncmp() had to be NUL-terminated. Original report and patch from Dennis Bjorkland, some cleanup by Andrew Dunstan, and finally some editorializing from Neil Conway.
* Adjustments for Win32-specific rename code, and add include file.Bruce Momjian2004-02-02
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* Avoid generating invalid character encoding sequences in make_greater_string.Tom Lane2004-02-02
| | | | Not sure how this mistake evaded detection for so long.
* Adjust rename on Win32 to only link to temp name while holding lock,Bruce Momjian2004-02-02
| | | | then release locks and loop over renaming to active file name.
* Briefly,Bruce Momjian2004-02-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * configure + Makefile changes * shared memory attaching in EXEC_BACKEND case (+ minor fix for apparent cygwin bug under cygwin/EXEC_BACKEND case only) * PATH env var separator differences * missing win32 rand functions added * placeholder replacements for sync etc under port.h To those who are really interested, and there are a few of you: the attached patch + file will allow the source base to be compiled (and, for some definition, "run") under MingW, with the following caveats (I wanted to first properly fix all but the last of these, but y'all won't quit asking for a patch :-): * child death: SIGCHLD not yet sent, so as a minimum, you'll need to put in some sort of delay after StartupDatabase, and handle setting StartupPID to 0 etc (ie. the stuff the reaper() signal function is supposed to do) * dirmod.c: comment out the elog calls * dfmgr.c: some hackage required to substitute_libpath_macro * slru/xact.c: comment out the errno checking after the readdir (fixed by next version of MingW) Again, this is only if you *really* want to see postgres compile and start, and is a nice leg-up for working on the other Win32 TODO list items. Just don't expect too much else from it at this point... Claudio Natoli
* Make length() disregard trailing spaces in char(n) values, per discussionTom Lane2004-02-01
| | | | | some time ago and recent patch from Gavin Sherry. Update documentation to point out that trailing spaces are insignificant in char(n).
* Micro-opt: replace calls likeNeil Conway2004-01-31
| | | | | | | appendStringInfo(buf, "%s", str); with appendStringInfoString(buf, str); as the latter form is slightly faster.
* Fix text_position to not scan past end of source string in multibyteTom Lane2004-01-31
| | | | | case, per report from Korea PostgreSQL Users' Group. Also do some cosmetic cleanup in nearby code.
* Fix debug elog message to agree with name of its routine.Tom Lane2004-01-30
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* Remove sleep() and use single PG_SLEEP call for Win32 signal handlingBruce Momjian2004-01-30
| | | | | | and consistency. Change PG_USLEEP to use SleepEx() for signal interuptability.
* Review uses of IsUnderPostmaster, change some tests to look atTom Lane2004-01-28
| | | | | | | whereToSendOutput instead because they are really inquiring about the correct client communication protocol. Update some comments. This is pointing towards supporting regular FE/BE client protocol in a standalone backend, per discussion a month or so back.
* Fix oversight in check_ungrouped_columns optimization that avoidsTom Lane2004-01-28
| | | | | | | unnecessary checks for complex grouping expressions: we cannot check whether the expressions are simple Vars until after we apply flatten_join_alias_vars, because in the case of FULL JOIN that routine can introduce non-Var expressions. Per example from Joel Knight.
* simplify_function() mustn't try to evaluate functions that returnTom Lane2004-01-28
| | | | | | | composite types, because TupleTableSlots aren't Datums and can't be stored in Const nodes. We can remove this restriction if we ever adopt a cleaner runtime representation for whole-tuple results, but at the moment it's broken. Per example from Thomas Hallgren.
* Pgindent win32 signal code.Bruce Momjian2004-01-27
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* Here's the latest win32 signals code, this time in the form of a patchBruce Momjian2004-01-27
| | | | | | | | | | | | | | | | | against the latest shapshot. It also includes the replacement of kill() with pqkill() and sigsetmask() with pqsigsetmask(). Passes all tests fine on my linux machine once applied. Still doesn't link completely on Win32 - there are a few things still required. But much closer than before. At Bruce's request, I'm goint to write up a README file about the method of signals delivery chosen and why the others were rejected (basically a summary of the mailinglist discussions). I'll finish that up once/if the patch is accepted. Magnus Hagander
* [all] Removed call to getppid in SendPostmasterSignal, replacing with aBruce Momjian2004-01-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | PostmasterPid variable, which gets set (early) in PostmasterMain getppid would not be the postmaster? [fork/exec] Implements processCancelRequest by keeping an array of pid/cancel_key structs in shared mem [fork/exec] Moves AttachSharedMemoryAndSemaphores call for backends into SubPostmasterMain [win32] Implements reaper/waitpid by keeping an arrays of children pids,handles in postmaster local mem - this item is largely untested, for reasons which should be obvious, but appears sound [win32/all] Added extern for pgpipe in Win32 case, and changed the second pipe call (which seems to have been missed earlier) to pgpipe [win32] #define'd ftruncate to chsize in the Win32 case [win32] PG_USLEEP for Win32 has a misplaced paren. Fixed. [win32] DLLIMPORT handling for MingW case Claudio Natoli
* Back out win32 patch so we can apply it separately.Bruce Momjian2004-01-26
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* Attached is a patch that fixes some trivial typos and alignment. PleaseBruce Momjian2004-01-26
| | | | | | apply. Alvaro Herrera
* Ensure that close() and fclose() are checked for errors, at least inTom Lane2004-01-26
| | | | | | cases involving writes. Per recent discussion about the possibility of close-time failures on some filesystems. There is a TODO item for this, too.
* Repair incorrect order of operations in GetNewTransactionId(). We mustTom Lane2004-01-26
| | | | | | complete ExtendCLOG() before advancing nextXid, so that if that routine fails, the next incoming transaction will try it again. Per trouble report from Christopher Kings-Lynne.
* Support named parameters in information_schema.parameters,Tom Lane2004-01-24
| | | | | per Dennis Bjorklund. I did not force initdb for this, but you'd need to do one to get the improved view.
* Added GUC variable bgwriter_flush_method controlling the actionJan Wieck2004-01-24
| | | | | | | | | | | | | done by the background writer between writing dirty blocks and napping. none (default) no action sync bgwriter calls smgrsync() causing a sync(2) A global sync() is only good on dedicated database servers, so more flush methods should be added in the future. Jan
* Translation updatesDennis Bjorklund2004-01-24
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* Repair planner failure for cases involving Cartesian products insideTom Lane2004-01-24
| | | | | | IN (sub-SELECT) constructs. We must force a clauseless join of the sub-select member relations, but it wasn't happening because the code thought it would be able to use the join clause arising from the IN.
* Revise GEQO planner to make use of some heuristic knowledge about SQL, namelyTom Lane2004-01-23
| | | | | | | | | | | | | | that it's good to join where there are join clauses rather than where there are not. Also enable it to generate bushy plans at need, so that it doesn't fail in the presence of multiple IN clauses containing sub-joins. These changes appear to improve the behavior enough that we can substantially reduce the default pool size and generations count, thereby decreasing the runtime, and yet get as good or better plans as we were getting in 7.4. Consequently, adjust the default GEQO parameters. I also modified the way geqo_effort is used so that it affects both population size and number of generations; it's now useful as a single control to adjust the GEQO runtime-vs-plan-quality tradeoff. Bump geqo_threshold to 12, since even with these changes GEQO seems to be slower than the regular planner at 11 relations.
* Fix a minor bug introduced by the recent CREATE TABLE AS / WITH OIDSNeil Conway2004-01-23
| | | | | | patch: a 3-value enum was mistakenly assigned directly to a 'bool' in transformCreateStmt(). Along the way, change makeObjectName() to be static, as it isn't used outside analyze.c
* Remove ExpandDatabasePath(), which is unused and must have been so sinceTom Lane2004-01-22
| | | | 7.1, because the path interpretation it embodies has been wrong since 7.1.
* Translation updatesDennis Bjorklund2004-01-22
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* Fix oversight in optimization that avoids an unnecessary projection stepTom Lane2004-01-22
| | | | | | when scanning a table that we need all the columns from. In case of SELECT INTO, we have to check that the hasoids flag matches the desired output type, too. Per report from Mike Mascari.
* Correct error introduced in recent hasoids changes --- it's not a boolTom Lane2004-01-22
| | | | field anymore.
* Repair error apparently introduced in the initial coding of GUC: theTom Lane2004-01-21
| | | | | | default value for geqo_effort is supposed to be 40, not 1. The actual 'genetic' component of the GEQO algorithm has been practically disabled since 7.1 because of this mistake. Improve documentation while at it.
* If we don't have shared libraries, we don't have conversions. MakeTom Lane2004-01-21
| | | | | conversion_create.sql be empty (except for a helpful comment) in this case. Allows initdb to succeed with --disable-shared.
* Fix bit-rot in support for building with --disable-shared. This patchTom Lane2004-01-21
| | | | | gets us past 'make install', but initdb still fails for lack of conversion libraries ...
* Translation updatesDennis Bjorklund2004-01-21
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* Repair problem identified by Olivier Prenant: ALTER DATABASE SET search_pathTom Lane2004-01-19
| | | | | | | | | | | should not be too eager to reject paths involving unknown schemas, since it can't really tell whether the schemas exist in the target database. (Also, when reading pg_dumpall output, it could be that the schemas don't exist yet, but eventually will.) ALTER USER SET has a similar issue. So, reduce the normal ERROR to a NOTICE when checking search_path values for these commands. Supporting this requires changing the API for GUC assign_hook functions, which causes the patch to touch a lot of places, but the changes are conceptually trivial.
* Fix typo.Peter Eisentraut2004-01-19
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* Don't return an overoptimistic result from join_in_selectivity whenTom Lane2004-01-19
| | | | we have detected that an IN subquery must return unique results.
* Recognize that IN subqueries return already-unique results if they useTom Lane2004-01-19
| | | | | UNION/INTERSECT/EXCEPT (without ALL). This adds on to the previous optimization for subqueries using DISTINCT.
* Add a hash table to cache lookups of 'C'-language functions (that is,Tom Lane2004-01-19
| | | | | | dynamically loaded C functions). Some limited testing suggests that this puts the lookup speed for external functions just about on par with built-in functions. Per discussion with Eric Ridge.
* Don't use %s-with-precision format spec to truncate data being displayedTom Lane2004-01-18
| | | | | | | | | in a COPY error message. It seems that glibc gets indigestion if it is asked to truncate strings that contain invalid UTF-8 encoding sequences. vsnprintf will return -1 in such cases, leading to looping and eventual memory overflow in elog.c. Instead use our own, more robust pg_mbcliplen routine. I believe this problem accounts for several recent reports of unexpected 'out of memory' errors during COPY IN.
* When testing whether a sub-plan can do projection, use a general-purposeTom Lane2004-01-18
| | | | | | | | | | | | check instead of hardwiring assumptions that only certain plan node types can appear at the places where we are testing. This was always a pretty fragile assumption, and it turns out to be broken in 7.4 for certain cases involving IN-subselect tests that need type coercion. Also, modify code that builds finished Plan tree so that node types that don't do projection always copy their input node's targetlist, rather than having the tlist passed in from the caller. The old method makes it too easy to write broken code that thinks it can modify the tlist when it cannot.
* Repair misestimation of indexscan CPU costs. When an indexqual containsTom Lane2004-01-17
| | | | | | a run-time key (that is, a nonconstant expression compared to the index variable), the key is evaluated just once per scan, but we were charging costs as though it were evaluated once per visited index entry.
* Tighten short-circuit tests for deciding whether we need to invokeTom Lane2004-01-16
| | | | | | | tuptoaster.c --- fields that are compressed in-line are not a reason to invoke the toaster. Along the way, add a couple more htup.h macros to eliminate confusing negated tests, and get rid of the already vestigial TUPLE_TOASTER_ACTIVE symbol.
* Adjusted calculation of shared memory requirements to newJan Wieck2004-01-15
| | | | | | ARC buffer replacement strategy. Jan
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