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* Avoid inserting no-op Limit plan nodes.Tom Lane2013-03-14
| | | | | This was discussed in connection with the patch to avoid inserting no-op Result nodes, but not actually implemented therein.
* Revert unnecessary change in MV call to checkRuleResultList().Kevin Grittner2013-03-14
| | | | | | | | | Due to a misreading of the function's comment block, there was an unneeded change to a call in rewriteDefine.c. There is, in fact no reason to pass false for a MV; it should be true just like a view. Fixes issue pointed out by Tom Lane
* Add regression test for MV join to view.Kevin Grittner2013-03-14
| | | | | | | This would have caught a bug in the initial patch, and seems like a good thing to test going forward. Per bug report by Erik Rijkers and fix by Tom Lane
* Also update psqlscan.l with the UESCAPE error rule changes.Heikki Linnakangas2013-03-14
| | | | | | | | | Even though this patch had no user-visible difference, better keep the code in psqlscan.l sync with the backend lexer. And of course it's nice to shrink the psql binary, too. Ecpg's version of the lexer doesn't have the error rule, it doesn't try to avoid backing up, so it doesn't need to be modified. As reminded by Tom Lane
* Minor fixes for hstore_to_json_loose().Tom Lane2013-03-14
| | | | Fix unportable use of isdigit(), get rid of useless calculations.
* Avoid inserting Result nodes that only compute identity projections.Tom Lane2013-03-14
| | | | | | | | | | | | | | | | | | | | The planner sometimes inserts Result nodes to perform column projections (ie, arbitrary scalar calculations) above plan nodes that lack projection logic of their own. However, we did that even if the lower plan node was in fact producing the required column set already; which is a pretty common case given the popularity of "SELECT * FROM ...". Measurements show that the useless plan node adds non-negligible overhead, especially when there are many columns in the result. So add a check to avoid inserting a Result node unless there's something useful for it to do. There are a couple of remaining places where unnecessary Result nodes could get inserted, but they are (a) much less performance-critical, and (b) coded in such a way that it's hard to avoid inserting a Result, because the desired tlist is changed on-the-fly in subsequent logic. We'll leave those alone for now. Kyotaro Horiguchi; reviewed and further hacked on by Amit Kapila and Tom Lane.
* Change the way UESCAPE is lexed, to reduce the size of the flex tables.Heikki Linnakangas2013-03-14
| | | | | | | The error rule used to avoid backtracking with the U&'...' UESCAPE 'x' syntax bloated the flex tables, so refactor that. This patch makes the error rule shorter, by introducing a new exclusive flex state that's entered after parsing U&'...'. This shrinks the postgres binary by about 220kB.
* Add cost estimation of range @> and <@ operators.Heikki Linnakangas2013-03-14
| | | | | | | | | | | The estimates are based on the existing lower bound histogram, and a new histogram of range lengths. Bump catversion, because the range length histogram now needs to be present in statistic slot kind 6, or you get an error on @> and <@ queries. (A re-ANALYZE would be enough to fix that, though) Alexander Korotkov, with some refactoring by me.
* Add regression tests for XML mapping of domainsPeter Eisentraut2013-03-13
| | | | Pavel Stěhule
* Fix bug in dumping prior releases due to MV REFRESH dependency checking.Kevin Grittner2013-03-13
| | | | | | Reports and suggested patches from Fujii Masao and Andrew Dunstan. Andrew Dunstan
* Introduce less-bogus handling of collations in contrib/postgres_fdw.Tom Lane2013-03-13
| | | | | | | | | | | | Treat expressions as being remotely executable only if all collations used in them are determined by Vars of the foreign table. This means that, if the foreign server gets different answers than we do, it's the user's fault for not having marked the foreign table columns with collations equivalent to the remote table's. This rule allows most simple expressions such as "var < 'constant'" to be sent to the remote side, because the constant isn't determining the collation (the Var's collation would win). There's still room for improvement, but it's hard to see how to do it without a lot more knowledge and/or assumptions about what the remote side will do.
* Fix documentation oversight.Tom Lane2013-03-12
| | | | Mention that PlanForeignModify's result must be copiable by copyObject.
* Fix contrib/postgres_fdw's handling of column defaults.Tom Lane2013-03-12
| | | | | | | | | Adopt the position that only locally-defined defaults matter. Any defaults defined in the remote database do not affect insertions performed through a foreign table (unless they are for columns not known to the foreign table). While it'd arguably be more useful to permit remote defaults to be used, making that work in a consistent fashion requires far more work than seems possible for 9.3.
* Allow default expressions to be attached to columns of foreign tables.Tom Lane2013-03-12
| | | | | | | | | | | | | | There's still some discussion about exactly how postgres_fdw ought to handle this case, but there seems no debate that we want to allow defaults to be used for inserts into foreign tables. So remove the core-code restrictions that prevented it. While at it, get rid of the special grammar productions for CREATE FOREIGN TABLE, and instead add explicit FEATURE_NOT_SUPPORTED error checks for the disallowed cases. This makes the grammar a shade smaller, and more importantly results in much more intelligible error messages for unsupported cases. It's also one less thing to fix if we ever start supporting constraints on foreign tables.
* Fix orthotypographical mistakeAlvaro Herrera2013-03-12
| | | | | | | | | | Apparently I lost some of the edits I had done on this page for commit 0ac5ad5134. Per note from Etsuro Fujita, although I didn't use his patch. Make some of the wording in the affected section a bit more complete, too.
* Avoid row-processing-order dependency in postgres_fdw regression test.Tom Lane2013-03-12
| | | | | | A test intended to provoke an error on the remote side was coded in such a way that multiple rows should be updated, so the output would vary depending on which one was processed first. Per buildfarm.
* Fix postgres_fdw's issues with inconsistent interpretation of data values.Tom Lane2013-03-11
| | | | | | | | | | | | | | | | | | | | | For datatypes whose output formatting depends on one or more GUC settings, we have to worry about whether the other server will interpret the value the same way it was meant. pg_dump has been aware of this hazard for a long time, but postgres_fdw needs to deal with it too. To fix data retrieval from the remote server, set the necessary remote GUC settings at connection startup. (We were already assuming that settings made then would persist throughout the remote session.) To fix data transmission to the remote server, temporarily force the relevant GUCs to the right values when we're about to convert any data values to text for transmission. This is all pretty grotty, and not very cheap either. It's tempting to think of defining one uber-GUC that would override any settings that might render printed data values unportable. But of course, older remote servers wouldn't know any such thing and would still need this logic. While at it, revert commit f7951eef89be78c50ea2241f593d76dfefe176c9, since this provides a real fix. (The timestamptz given in the error message returned from the "remote" server will now reliably be shown in UTC.)
* Avoid generating bad remote SQL for INSERT ... DEFAULT VALUES.Tom Lane2013-03-11
| | | | "INSERT INTO foo() VALUES ()" is invalid syntax, so don't do that.
* Fix thinko in matview patch.Tom Lane2013-03-11
| | | | | | | "break" instead of "continue" suppressed view expansion for views appearing later in the range table. Per report from Erikjan Rijkers. While at it, improve the associated comment a bit.
* JSON generation improvements.Andrew Dunstan2013-03-10
| | | | | | | | | | | | | | | | | | This adds the following: json_agg(anyrecord) -> json to_json(any) -> json hstore_to_json(hstore) -> json (also used as a cast) hstore_to_json_loose(hstore) -> json The last provides heuristic treatment of numbers and booleans. Also, in json generation, if any non-builtin type has a cast to json, that function is used instead of the type's output function. Andrew Dunstan, reviewed by Steve Singer. Catalog version bumped.
* doc: Add note about checkpoint_warning vs checkpoint_timeoutPeter Eisentraut2013-03-10
| | | | suggested by Tianyin Xu
* pg_ctl: Adjust nls.mk for split out of wait_error.cPeter Eisentraut2013-03-10
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* pg_basebackup: Add missing newlines to several error messagesPeter Eisentraut2013-03-10
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* Band-aid for regression test expected-results problem with timestamptz.Tom Lane2013-03-10
| | | | | | | We probably need to tell the remote server to use specific timezone and datestyle settings, and maybe other things. But for now let's just hack the postgres_fdw regression test to not provoke failures when run in non-EST5EDT environments. Per buildfarm.
* Support writable foreign tables.Tom Lane2013-03-10
| | | | | | | | | | | This patch adds the core-system infrastructure needed to support updates on foreign tables, and extends contrib/postgres_fdw to allow updates against remote Postgres servers. There's still a great deal of room for improvement in optimization of remote updates, but at least there's basic functionality there now. KaiGai Kohei, reviewed by Alexander Korotkov and Laurenz Albe, and rather heavily revised by Tom Lane.
* Report pg_hba line number and contents when users fail to log inMagnus Hagander2013-03-10
| | | | | | | | | | | | | Instead of just reporting which user failed to log in, log both the line number in the active pg_hba.conf file (which may not match reality in case the file has been edited and not reloaded) and the contents of the matching line (which will always be correct), to make it easier to debug incorrect pg_hba.conf files. The message to the client remains unchanged and does not include this information, to prevent leaking security sensitive information. Reviewed by Tom Lane and Dean Rasheed
* Forgot catversion bump in the SP-GiST adjacent support patch.Heikki Linnakangas2013-03-08
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* SP-GiST support of the range adjacent operator -|-Heikki Linnakangas2013-03-08
| | | | Alexander Korotkov, reviewed by Jeff Davis.
* Remove unnecessary #ifdef FRONTEND check to choose between strdup and pstrdup.Heikki Linnakangas2013-03-08
| | | | | | | The libpgcommon patch made that unnecessary, palloc and friends are now available in frontend programs too, mapped to plain old malloc. As pointed out by Alvaro Herrera.
* Fix typo in docs for ALTER MATERIALIZED VIEW.Kevin Grittner2013-03-07
| | | | Fujii Masao
* Fix infinite-loop risk in fixempties() stage of regex compilation.Tom Lane2013-03-07
| | | | | | | | | | | The previous coding of this function could get into situations where it would never terminate, because successive passes would re-add EMPTY arcs that had been removed by the previous pass. Rewrite the function completely using a new algorithm that is guaranteed to terminate, and also seems to be usually faster than the old one. Per Tcl bugs 3604074 and 3606683. Tom Lane and Don Porter
* Fix tli history file fetching, broken by the archive after crash recevery patch.Heikki Linnakangas2013-03-07
| | | | | | | | | | | | | | If we were about to enter archive recovery after crash recovery, we scanned the archive for the latest tli history file, and set the recovery target timeline to that. However, when we actually tried to read the history file, we would not fetch the file from the archive, because we were not in archive recovery yet. To fix, make readTimeLineHistory and existsTimeLineHistory to always fetch the file from archive if archive recovery is requested, even if we're not in archive recovery yet. Backpatch to 9.2. Mitsumasa KONDO
* Arrange to cache FdwRoutine structs in foreign tables' relcache entries.Tom Lane2013-03-06
| | | | | | | This saves several catalog lookups per reference. It's not all that exciting right now, because we'd managed to minimize the number of places that need to fetch the data; but the upcoming writable-foreign-tables patch needs this info in a lot more places.
* Add fe_memutils.c to nls.mk where usedPeter Eisentraut2013-03-06
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* Code beautification for object-access hook machinery.Robert Haas2013-03-06
| | | | KaiGai Kohei
* Adjust nls.mk for split out of wait_error.cPeter Eisentraut2013-03-06
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* Fix missing #include in commands/matview.h.Tom Lane2013-03-06
| | | | It needs parsenodes.h to be compilable regardless of previous headers.
* WAL-log the extension of a new empty MV heap which is being populated.Kevin Grittner2013-03-06
| | | | | | | | | | This page with no tuples is used to distinguish an MV containing a zero-row resultset of its backing query from an MV which has not been populated by its backing query. Unless WAL-logged, recovery and hot standby don't work correctly with what should be an empty but scannable materialized view. Fixes bugs reported by Fujii Masao in testing MVs on hot standby.
* Add docs for pg_matviews, which were missed in the initial MV commit.Kevin Grittner2013-03-06
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* Fix broken pg_dump for 9.0 and 9.1 caused by the MV patch.Kevin Grittner2013-03-06
| | | | Per report and suggestion from Bernd Helmle
* Fix message typo.Andrew Dunstan2013-03-06
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* pg_ctl: Add comma to messagePeter Eisentraut2013-03-05
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* Remove dependency on the DLL of pythonxx.def file.Andrew Dunstan2013-03-05
| | | | | | | | | This confused Cygwin's make because of the colon in the path. The DLL isn't likely to change under us so preserving the dependency doesn't gain us much, and it's useful to be able to do a native Windows build with the Cygwin mingw toolset. Noah Misch.
* Fix to_char() to use ASCII-only case-folding rules where appropriate.Tom Lane2013-03-05
| | | | | | | | | | | | | | formatting.c used locale-dependent case folding rules in some code paths where the result isn't supposed to be locale-dependent, for example to_char(timestamp, 'DAY'). Since the source data is always just ASCII in these cases, that usually didn't matter ... but it does matter in Turkish locales, which have unusual treatment of "i" and "I". To confuse matters even more, the misbehavior was only visible in UTF8 encoding, because in single-byte encodings we used pg_toupper/pg_tolower which don't have locale-specific behavior for ASCII characters. Fix by providing intentionally ASCII-only case-folding functions and using these where appropriate. Per bug #7913 from Adnan Dursun. Back-patch to all active branches, since it's been like this for a long time.
* Bump catversion because of new function in the materialized view patch.Kevin Grittner2013-03-05
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* Fix overflow check in tm2timestamp (this time for sure).Tom Lane2013-03-04
| | | | | | I fixed this code back in commit 841b4a2d5, but didn't think carefully enough about the behavior near zero, which meant it improperly rejected 1999-12-31 24:00:00. Per report from Magnus Hagander.
* psql: Let \l accept a patternPeter Eisentraut2013-03-04
| | | | reviewed by Satoshi Nagayasu
* Remove accidentally-committed .orig file.Kevin Grittner2013-03-04
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* Fix map_sql_value_to_xml_value() to treat domains like their base types.Tom Lane2013-03-03
| | | | | | | | | | | | This was already the case for domains over arrays, but not for domains over certain built-in types such as boolean. The special formatting rules for those types should apply to domains over them as well. Per discussion. While this is a bug fix, it's also a behavioral change that seems likely to trip up some applications. So no back-patch. Pavel Stehule
* Add a materialized view relations.Kevin Grittner2013-03-03
| | | | | | | | | | | | | | | | | | | | | | A materialized view has a rule just like a view and a heap and other physical properties like a table. The rule is only used to populate the table, references in queries refer to the materialized data. This is a minimal implementation, but should still be useful in many cases. Currently data is only populated "on demand" by the CREATE MATERIALIZED VIEW and REFRESH MATERIALIZED VIEW statements. It is expected that future releases will add incremental updates with various timings, and that a more refined concept of defining what is "fresh" data will be developed. At some point it may even be possible to have queries use a materialized in place of references to underlying tables, but that requires the other above-mentioned features to be working first. Much of the documentation work by Robert Haas. Review by Noah Misch, Thom Brown, Robert Haas, Marko Tiikkaja Security review by KaiGai Kohei, with a decision on how best to implement sepgsql still pending.