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* Fix typo in comment, and reword it slightly while we're at it.Heikki Linnakangas2012-10-04
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* Support CREATE SCHEMA IF NOT EXISTS.Tom Lane2012-10-03
| | | | | | | | Per discussion, schema-element subcommands are not allowed together with this option, since it's not very obvious what should happen to the element objects. Fabrízio de Royes Mello
* refactor ALTER some-obj SET OWNER implementationAlvaro Herrera2012-10-03
| | | | | | | | | | Remove duplicate implementation of catalog munging and miscellaneous privilege and consistency checks. Instead rely on already existing data in objectaddress.c to do the work. Author: KaiGai Kohei Tweaked by me Reviewed by Robert Haas
* Avoid planner crash/Assert failure with joins to unflattened subqueries.Tom Lane2012-10-03
| | | | | | | | | | | | | | | | | | | examine_simple_variable supposed that any RTE_SUBQUERY rel it gets pointed at must have been planned already. However, this isn't a safe assumption because we must do selectivity estimation while generating indexscan paths, and that code might look at join clauses involving a rel that the loop in set_base_rel_sizes() hasn't reached yet. The simplest fix is to play dumb in such a situation, that is give up trying to extract any stats for the Var. This could possibly be improved by making a separate pass over the RTE list to plan each unflattened subquery before we start the main planning work --- but that would be pretty invasive and it doesn't seem worth it, for now at least. (We couldn't just break set_base_rel_sizes() into two loops: the prescan would need to handle all subquery rels in the query, not only those in the current join subproblem.) This bug was introduced in commit 1cb108efb0e60d87e4adec38e7636b6e8efbeb57, although I think that subsequent changes may have exposed it more than it was originally. Per bug #7580 from Maxim Boguk.
* REASSIGN OWNED: consider grants on tablespaces, tooAlvaro Herrera2012-10-03
| | | | | | | | Apparently this was considered in the original code (see commit cec3b0a9) but I failed to notice that such entries would always be skipped by the database check at the start of the loop. Per bugs #7578 by Nikolay, #6116 by tushar.qa@gmail.com.
* Return the number of rows processed when COPY is executed through SPI.Heikki Linnakangas2012-10-03
| | | | | | | You can now get the number of rows processed by a COPY statement in a PL/pgSQL function with "GET DIAGNOSTICS x = ROW_COUNT". Pavel Stehule, reviewed by Amit Kapila, with some editing by me.
* Fix two bugs introduced in the xlog.c split.Heikki Linnakangas2012-10-03
| | | | | | | The comment explaining the naming of timeline history files was wrong, and the history file was not being arhived. Pointed out by Fujii Masao.
* Improve some LDAP authentication error messagesPeter Eisentraut2012-10-02
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* Work around unportable behavior of malloc(0) and realloc(NULL, 0).Tom Lane2012-10-02
| | | | | | | | | | | | | | | | On some platforms these functions return NULL, rather than the more common practice of returning a pointer to a zero-sized block of memory. Hack our various wrapper functions to hide the difference by substituting a size request of 1. This is probably not so important for the callers, who should never touch the block anyway if they asked for size 0 --- but it's important for the wrapper functions themselves, which mistakenly treated the NULL result as an out-of-memory failure. This broke at least pg_dump for the case of no user-defined aggregates, as per report from Matthew Carrington. Back-patch to 9.2 to fix the pg_dump issue. Given the lack of previous complaints, it seems likely that there is no live bug in previous releases, even though some of these functions were in place before that.
* Refactor "ALTER some-obj SET SCHEMA" implementationAlvaro Herrera2012-10-02
| | | | | | | | | | | Instead of having each object type implement the catalog munging independently, centralize knowledge about how to do it and expand the existing table in objectaddress.c with enough data about each object type to support this operation. Author: KaiGai Kohei Tweaks by me Reviewed by Robert Haas
* Standardize naming of malloc/realloc/strdup wrapper functions.Tom Lane2012-10-02
| | | | | | | | | | | | We had a number of variants on the theme of "malloc or die", with the majority named like "pg_malloc", but by no means all. Standardize on the names pg_malloc, pg_malloc0, pg_realloc, pg_strdup. Get rid of pg_calloc entirely in favor of using pg_malloc0. This is an essentially cosmetic change, so no back-patch. (I did find a couple of places where psql and pg_dump were using plain malloc or strdup instead of the pg_ versions, but they don't look significant enough to bother back-patching.)
* Fix typo in previous warning-silencing patch.Heikki Linnakangas2012-10-02
| | | | Fujii Masao
* Silence compiler warning about pointer type mismatch on some platforms.Heikki Linnakangas2012-10-02
| | | | | | timeval.t_sec is of type time_t, which is not always compatible with long. I'm not sure if this was just harmless warning or a real bug, but this fixes it, anyway.
* Allow a few seconds for Windows to catch up with a directory rename when ↵Andrew Dunstan2012-10-02
| | | | checking pg_upgrade.
* Add #includes needed on some platforms in the new files.Heikki Linnakangas2012-10-02
| | | | Hopefully this makes the *BSD buildfarm animals happy.
* Split off functions related to timeline history files and XLOG archiving.Heikki Linnakangas2012-10-02
| | | | | | This is just refactoring, to make the functions accessible outside xlog.c. A followup patch will make use of that, to allow fetching timeline history files over streaming replication.
* Fix access past end of string in date parsing.Heikki Linnakangas2012-10-02
| | | | | | This affects date_in(), and a couple of other funcions that use DecodeDate(). Hitoshi Harada
* Add C comment that IsBackendPid() is called by external modules, so weBruce Momjian2012-10-01
| | | | don't accidentally remove it.
* Remove collations from generic ALTER testAlvaro Herrera2012-10-01
| | | | | | | | The error messages they generate are not portable enough. Also, since the only point of the alter_generic_1 expected file was to cover platforms with no collation support, it's now useless, so remove it.
* Provide some static-assertion functionality on all compilers.Tom Lane2012-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | On reflection (especially after noticing how many buildfarm critters have __builtin_types_compatible_p but not _Static_assert), it seems like we ought to try a bit harder to make these macros do something everywhere. The initial cut at it would have been no help to code that is compiled only on platforms without _Static_assert, for instance; and in any case not all our contributors do their initial coding on the latest gcc version. Some googling about static assertions turns up quite a bit of prior art for making it work in compilers that lack _Static_assert. The method that seems closest to our needs involves defining a struct with a bit-field that has negative width if the assertion condition fails. There seems no reliable way to get the error message string to be output, but throwing a compile error with a confusing message is better than missing the problem altogether. In the same spirit, if we don't have __builtin_types_compatible_p we can at least insist that the variable have the same width as the type. This won't catch errors such as "wrong pointer type", but it's far better than nothing. In addition to changing the macro definitions, adjust a compile-time-constant Assert in contrib/hstore to use StaticAssertStmt, so we can get some buildfarm coverage on whether that macro behaves sanely or not. There's surely more places that could be converted, but this is the first one I came across.
* Add infrastructure for compile-time assertions about variable types.Tom Lane2012-09-30
| | | | | | | Currently, the macros only work with fairly recent gcc versions, but there is room to expand them to other compilers that have comparable features. Heavily revised and autoconfiscated version of a patch by Andres Freund.
* psql: Mark table headers in \drds output for translationPeter Eisentraut2012-09-29
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* Disable _FORTIFY_SOURCE with ICCPeter Eisentraut2012-09-29
| | | | There are apparently some incompatibilities, per buildfarm.
* Fix bugs in "restore.sql" script emitted in pg_dump tar output.Tom Lane2012-09-29
| | | | | | | | | | | | | | | | | | | The tar output module did some very ugly and ultimately incorrect hacking on COPY commands to try to get them to work in the context of restoring a deconstructed tar archive. In particular, it would fail altogether for table names containing any upper-case characters, since it smashed the command string to lower-case before modifying it (and, just to add insult to injury, did that in a way that would fail in multibyte encodings). I don't see any particular value in being flexible about the case of the command keywords, since the string will just have been created by dumpTableData, so let's get rid of the whole case-folding thing. Also, it doesn't seem to meet the POLA for the script to restore data only in COPY mode, so add \i commands to make it have comparable behavior in --inserts mode. Noted while looking at the tar-output code in connection with Brian Weaver's patch.
* Add _FORTIFY_SOURCE to default compiler options for linux templatePeter Eisentraut2012-09-29
| | | | | Many distributors use this, so we might as well see the warnings as well.
* PL/Python: Remove workaround for returning booleans in Python <2.3Peter Eisentraut2012-09-29
| | | | | Since Python 2.2 is no longer supported, we can now use Py_RETURN_TRUE and Py_RETURN_FALSE instead of the old workaround.
* PL/Python: Convert oid to long/intPeter Eisentraut2012-09-29
| | | | | oid is a numeric type, so transform it to the appropriate Python numeric type like the other ones.
* Add alternative expected output for alter_genericAlvaro Herrera2012-09-29
| | | | | | | | | The original only expected file failed to consider machines without non-default collation support. Per buildfarm. Also, move the test to another parallel group; the one it was originally put in is already full according to comments in the schedule file. Per note from Tom Lane.
* Remove checks for now long outdated compilers.Andrew Dunstan2012-09-28
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* Add alter_generic regression testAlvaro Herrera2012-09-28
| | | | | | | This makes refactoring of parts of the ALTER command safe(r) because we ensure no change in functionality. Author: KaiGai Kohei
* Fix tar files emitted by pg_dump and pg_basebackup to be POSIX conformant.Tom Lane2012-09-28
| | | | | | | | | | | | | | | | | | | | Both programs got the "magic" string wrong, causing standard-conforming tar implementations to believe the output was just legacy tar format without any POSIX extensions. This doesn't actually matter that much, especially since pg_dump failed to fill the POSIX fields anyway, but still there is little point in emitting tar format if we can't be compliant with the standard. In addition, pg_dump failed to write the EOF marker correctly (there should be 2 blocks of zeroes not just one), pg_basebackup put the numeric group ID in the wrong place, and both programs had a pretty brain-dead idea of how to compute the checksum. Fix all that and improve the comments a bit. pg_restore is modified to accept either the correct POSIX-compliant "magic" string or the previous value. This part of the change will need to be back-patched to avoid an unnecessary compatibility break when a previous version tries to read tar-format output from 9.3 pg_dump. Brian Weaver and Tom Lane
* Produce textual error messages for LDAP issues instead of numeric codesPeter Eisentraut2012-09-27
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* Fix btmarkpos/btrestrpos to handle array keys.Tom Lane2012-09-27
| | | | | | | | This fixes another error in commit 9e8da0f75731aaa7605cf4656c21ea09e84d2eb1. I neglected to make the mark/restore functionality save and restore the current set of array key values, which led to strange behavior if an IndexScan with ScalarArrayOpExpr quals was used as the inner side of a mergejoin. Per bug #7570 from Melese Tesfaye.
* Have pg_terminate/cancel_backend not ERROR on non-existent processesAlvaro Herrera2012-09-27
| | | | | | | | | | | | | | | | | | This worked fine for superusers, but not for ordinary users trying to cancel their own processes. Tweak the order the checks are done in so that we correctly return SIGNAL_BACKEND_ERROR (which current callers know to ignore without erroring out) so that an ordinary user can loop through a resultset without fearing that a process might exit in the middle of said looping -- causing the remaining processes to go unsignalled. Incidentally, the last in-core caller of IsBackendPid() is now gone. However, the function is exported and must remain in place, because there are plenty of callers in external modules. Author: Josh Kupershmidt Reviewed by Noah Misch
* Run check_keywords.pl anytime gram.c is rebuilt.Tom Lane2012-09-26
| | | | | | | | | | | This script is a bit slow, but still it only takes a fraction of the time the bison run does, so the overhead doesn't seem intolerable. And we definitely need some mechanical aid here, because people keep missing the need to add new keywords to the appropriate keyword-list production. While at it, I moved check_keywords.pl from src/tools into src/backend/parser where it's actually used, and did some very minor cleanup on the script.
* Make plpgsql's unreserved keywords more unreserved.Tom Lane2012-09-26
| | | | | | | | | | | There were assorted places where unreserved keywords were not treated the same as T_WORD (that is, a random unrecognized identifier). Fix them. It might not always be possible to allow this, but it is in all these places, so I don't see any downside. Per gripe from Jim Wilson. Arguably this is a bug fix, but given the lack of other complaints and the ease of working around it (just quote the word), I won't risk back-patching.
* Add new EVENT keyword to unreserved_keyword production.Tom Lane2012-09-26
| | | | | | Once again, somebody who ought to know better forgot this. We really need some automated cross-check on the keyword-list productions, I think. Per report from Brian Weaver.
* Add support for include_dir in config file.Heikki Linnakangas2012-09-24
| | | | | | | This allows easily splitting configuration into many files, deployed in a directory. Magnus Hagander, Greg Smith, Selena Deckelmann, reviewed by Noah Misch.
* Prevent emitting "ALTER VIEW foo SET ()".Tom Lane2012-09-24
| | | | | Small oversight in commit 0f524ea0cf388a149f362e48a33c01662eeddc04 ... per report from Grazvydas Valeika.
* RELEASE_NOTES: Fix typoAlvaro Herrera2012-09-23
| | | | Jan Urbański
* Update translation updates instructionsPeter Eisentraut2012-09-22
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* Minor corrections for ALTER TYPE ADD VALUE IF NOT EXISTS patch.Tom Lane2012-09-22
| | | | | | | | | Produce a NOTICE when the label already exists, for consistency with other CREATE IF NOT EXISTS commands. Also, fix the code so it produces something more user-friendly than an index violation when the label already exists. This not incidentally enables making a regression test that the previous patch didn't make for fear of exposing an unpredictable OID in the results. Also some wordsmithing on the documentation.
* Allow IF NOT EXISTS when add a new enum label.Andrew Dunstan2012-09-22
| | | | | | | | If the label is already in the enum the statement becomes a no-op. This will reduce the pain that comes from our not allowing this operation inside a transaction block. Andrew Dunstan, reviewed by Tom Lane and Magnus Hagander.
* Improve ruleutils.c's heuristics for dealing with rangetable aliases.Tom Lane2012-09-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The previous scheme had bugs in some corner cases involving tables that had been renamed since a view was made. This could result in dumped views that failed to reload or reloaded incorrectly, as seen in bug #7553 from Lloyd Albin, as well as in some pgsql-hackers discussion back in January. Also, its behavior for printing EXPLAIN plans was sometimes confusing because of willingness to use the same alias for multiple RTEs (it was Ashutosh Bapat's complaint about that aspect that started the January thread). To fix, ensure that each RTE in the query has a unique unqualified alias, by modifying the alias if necessary (we add "_" and digits as needed to create a non-conflicting name). Then we can just print its variables with that alias, avoiding the confusing and bug-prone scheme of sometimes schema-qualifying variable names. In EXPLAIN, it proves to be expedient to take the further step of only assigning such aliases to RTEs that are actually referenced in the query, since the planner has a habit of generating extra RTEs with the same alias in situations such as inheritance-tree expansion. Although this fixes a bug of very long standing, I'm hesitant to back-patch such a noticeable behavioral change. My experiments while creating a regression test convinced me that actually incorrect output (as opposed to confusing output) occurs only in very narrow cases, which is backed up by the lack of previous complaints from the field. So we may be better off living with it in released branches; and in any case it'd be smart to let this ripen awhile in HEAD before we consider back-patching it.
* Parse pg_ident.conf when it's loaded, keeping it in memory in parsed format.Heikki Linnakangas2012-09-21
| | | | | | | | | | | | | | | | | | | | Similar changes were done to pg_hba.conf earlier already, this commit makes pg_ident.conf to behave the same as pg_hba.conf. This has two user-visible effects. First, if pg_ident.conf contains multiple errors, the whole file is parsed at postmaster startup time and all the errors are immediately reported. Before this patch, the file was parsed and the errors were reported only when someone tries to connect using an authentication method that uses the file, and the parsing stopped on first error. Second, if you SIGHUP to reload the config files, and the new pg_ident.conf file contains an error, the error is logged but the old file stays in effect. Also, regular expressions in pg_ident.conf are now compiled only once when the file is loaded, rather than every time the a user is authenticated. That should speed up authentication if you have a lot of regexps in the file. Amit Kapila
* Fix obsolete comment.Heikki Linnakangas2012-09-21
| | | | | load_hba and load_ident load stuff in a separate memory context nowadays, not in the current memory context.
* Remove execdesc.h inclusion from tcopprot.hAlvaro Herrera2012-09-20
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* Put back AcceptInvalidationMessages calls in heap_openrv(_extended).Tom Lane2012-09-19
| | | | | | | | | | | | | | | | | | These calls were removed in commit 4240e429d0c2d889d0cda23c618f94e12c13ade7 as part of a general refactoring and improvement of DDL locking. However, there's a problem not solved by the rewrite, which is that GRANT/REVOKE update pg_class.relacl without taking any particular lock on the target table as such. If another backend fails to do AcceptInvalidationMessages, it won't notice a recently-committed change in ACLs. Bug #7557 from Piotr Czachur demonstrates that there's at least one code path in 9.2.0 in which a command fails to do any AcceptInvalidationMessages calls at all, if the current transaction already holds all the locks it will need. Since we're hard up against the release deadline for 9.2.1, fix this by putting back the AcceptInvalidationMessages calls in heap_openrv and heap_openrv_extended, thereby restoring the historical behavior in this area. We ought to look for a more elegant and perhaps more bulletproof solution, but there's no time for that right now.
* Update time zone data files to tzdata release 2012f.Tom Lane2012-09-19
| | | | DST law changes in Fiji.
* Fix planning of btree index scans using ScalarArrayOpExpr quals.Tom Lane2012-09-18
| | | | | | | | | | | | In commit 9e8da0f75731aaa7605cf4656c21ea09e84d2eb1, I improved btree to handle ScalarArrayOpExpr quals natively, so that constructs like "indexedcol IN (list)" could be supported by index-only scans. Using such a qual results in multiple scans of the index, under-the-hood. I went to some lengths to ensure that this still produces rows in index order ... but I failed to recognize that if a higher-order index column is lacking an equality constraint, rescans can produce out-of-order data from that column. Tweak the planner to not expect sorted output in that case. Per trouble report from Robert McGehee.