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* Improve some comments in scanner filesPeter Eisentraut2021-12-01
| | | | | Reviewed-by: John Naylor <john.naylor@enterprisedb.com> Discussion: https://www.postgresql.org/message-id/flat/b239564c-cad0-b23e-c57e-166d883cb97d@enterprisedb.com
* Fix error handling with threads on OOM in ECPG connection logicMichael Paquier2021-09-13
| | | | | | | | | | | | | | | | | | | | An out-of-memory failure happening when allocating the structures to store the connection parameter keywords and values would mess up with the set of connections saved, as on failure the pthread mutex would still be hold with the new connection object listed but free()'d. Rather than just unlocking the mutex, which would leave the static list of connections into an inconsistent state, move the allocation for the structures of the connection parameters before beginning the test manipulation. This ensures that the list of connections and the connection mutex remain consistent all the time in this code path. This error is unlikely going to happen, but this could mess up badly with ECPG clients in surprising ways, so backpatch all the way down. Reported-by: ryancaicse Discussion: https://postgr.es/m/17186-b4cfd8f0eb4d1dee@postgresql.org Backpatch-through: 9.6
* Fix incorrect merge in ECPG code with DECLAREMichael Paquier2021-08-25
| | | | | | | | | | | The same condition was repeated twice when comparing the connection used by existing declared statement with the one coming from a fresh DECLARE statement. This had no consequences, but let's keep the code clean. Oversight in f576de1. Author: Shenhao Wang Discussion: https://postgr.es/m/OSBPR01MB42149653BC0AB0A49D23C1B8F2C69@OSBPR01MB4214.jpnprd01.prod.outlook.com Backpatch-through: 14
* ecpg: Remove trailing period from error message.Fujii Masao2021-08-25
| | | | | | | | | | This commit improves the ecpg's error message that commit f576de1db1 updated, so that it gets rid of trailing period and uppercases the command name in the error message. Author: Kyotaro Horiguchi Reviewed-by: Fujii Masao Discussion: https://postgr.es/m/20210819.170315.1413060634876301811.horikyota.ntt@gmail.com
* Improved ECPG warning as suggested by Michael Paquier and removed test caseMichael Meskes2021-08-17
| | | | that triggers the warning during regression tests.
* Fix connection handling for DEALLOCATE and DESCRIBE statementsMichael Meskes2021-08-13
| | | | | | | | | | After binding a statement to a connection with DECLARE STATEMENT the connection was still not used for DEALLOCATE and DESCRIBE statements. This patch fixes that, adds a missing warning and cleans up the code. Author: Hayato Kuroda Reviewed-by: Kyotaro Horiguchi, Michael Paquier Discussion: https://postgr.es/m/TYAPR01MB5866BA57688DF2770E2F95C6F5069%40TYAPR01MB5866.jpnprd01.prod.outlook.com
* interval: round values when spilling to monthsBruce Momjian2021-08-03
| | | | | | | | | | | Previously spilled units greater than months were truncated to months. Also document the spill behavior. Reported-by: Bryn Llewelly Discussion: https://postgr.es/m/BDAE4B56-3337-45A2-AC8A-30593849D6C0@yugabyte.com Backpatch-through: master
* Fix range check in ECPG numeric to int conversionJohn Naylor2021-07-30
| | | | | | | | | | | The previous coding guarded against -INT_MAX instead of INT_MIN, leading to -2147483648 being rejected as out of range. Per bug #17128 from Kevin Sweet Discussion: https://www.postgresql.org/message-id/flat/17128-55a8a879727a3e3a%40postgresql.org Reviewed-by: Tom Lane Backpatch to all supported branches
* Translation updatesPeter Eisentraut2021-06-21
| | | | | Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git Source-Git-Hash: 70796ae860c444c764bb591c885f22cac1c168ec
* Avoid ECPG test failures in some GSS-capable environments.Tom Lane2021-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | Buildfarm member hamerkop has been reporting that two cases in connect/test5.pgc show different error messages than the test expects, because since commit ffa2e4670 libpq's connection failure messages are exposing the fact that a GSS-encrypted connection was attempted and failed. That's pretty interesting information in itself, and I certainly don't wish to shoot the messenger, but we need to do something to stabilize the ECPG results. For the second of these two failure cases, we can add the gssencmode=disable option to prevent the discrepancy. However, that solution is problematic for the first failure, because the only unique thing about that case is that it's testing a completely-omitted connection target; there's noplace to add the option without defeating the point of the test case. After some thrashing around with alternative fixes that turned out to have undesirable side-effects, the most workable answer is just to give up and remove that test case. Perhaps we can revert this later, if we figure out why the GSS code is misbehaving in hamerkop's environment. Thanks to Michael Paquier for exploration of alternatives. Discussion: https://postgr.es/m/YLRZH6CWs9N6Pusy@paquier.xyz
* Translation updatesPeter Eisentraut2021-05-17
| | | | | Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git Source-Git-Hash: 9bbd9c3714d0c76daaa806588b1fbf744aa60496
* Message style improvementsPeter Eisentraut2021-05-14
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* Initial pgindent and pgperltidy run for v14.Tom Lane2021-05-12
| | | | | | | | Also "make reformat-dat-files". The only change worthy of note is that pgindent messed up the formatting of launcher.c's struct LogicalRepWorkerId, which led me to notice that that struct wasn't used at all anymore, so I just took it out.
* Translation updatesPeter Eisentraut2021-05-10
| | | | | Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git Source-Git-Hash: 1c361d3ac016b61715d99f2055dee050397e3f13
* Revert use singular for -1 (commits 9ee7d533da and 5da9868ed9Bruce Momjian2021-05-01
| | | | | | | | | | | | | | Turns out you can specify negative values using plurals: https://english.stackexchange.com/questions/9735/is-1-followed-by-a-singular-or-plural-noun so the previous code was correct enough, and consistent with other usage in our code. Also add comment in the two places where this could be confused. Reported-by: Noah Misch Diagnosed-by: 20210425115726.GA2353095@rfd.leadboat.com
* Fix typos and grammar in comments and docsMichael Paquier2021-04-19
| | | | | Author: Justin Pryzby Discussion: https://postgr.es/m/20210416070310.GG3315@telsasoft.com
* SQL-standard function bodyPeter Eisentraut2021-04-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for writing CREATE FUNCTION and CREATE PROCEDURE statements for language SQL with a function body that conforms to the SQL standard and is portable to other implementations. Instead of the PostgreSQL-specific AS $$ string literal $$ syntax, this allows writing out the SQL statements making up the body unquoted, either as a single statement: CREATE FUNCTION add(a integer, b integer) RETURNS integer LANGUAGE SQL RETURN a + b; or as a block CREATE PROCEDURE insert_data(a integer, b integer) LANGUAGE SQL BEGIN ATOMIC INSERT INTO tbl VALUES (a); INSERT INTO tbl VALUES (b); END; The function body is parsed at function definition time and stored as expression nodes in a new pg_proc column prosqlbody. So at run time, no further parsing is required. However, this form does not support polymorphic arguments, because there is no more parse analysis done at call time. Dependencies between the function and the objects it uses are fully tracked. A new RETURN statement is introduced. This can only be used inside function bodies. Internally, it is treated much like a SELECT statement. psql needs some new intelligence to keep track of function body boundaries so that it doesn't send off statements when it sees semicolons that are inside a function body. Tested-by: Jaime Casanova <jcasanov@systemguards.com.ec> Reviewed-by: Julien Rouhaud <rjuju123@gmail.com> Discussion: https://www.postgresql.org/message-id/flat/1c11f1eb-f00c-43b7-799d-2d44132c02d7@2ndquadrant.com
* Use macro MONTHS_PER_YEAR instead of '12' in /ecpg/pgtypeslibBruce Momjian2021-04-02
| | | | | | All other places already use MONTHS_PER_YEAR appropriately. Backpatch-through: 9.6
* In messages, use singular nouns for -1, like we do for +1.Bruce Momjian2021-03-30
| | | | | | | | | | This outputs "-1 year", not "-1 years". Reported-by: neverov.max@gmail.com Bug: 16939 Discussion: https://postgr.es/m/16939-cceeb03fb72736ee@postgresql.org
* Need to step forward in the loop to get to an end.Michael Meskes2021-03-24
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* Add DECLARE STATEMENT command to ECPGMichael Meskes2021-03-24
| | | | | | | | | This command declares a SQL identifier for a SQL statement to be used in other embedded SQL statements. The identifier is linked to a connection. Author: Hayato Kuroda <kuroda.hayato@fujitsu.com> Reviewed-by: Shawn Wang <shawn.wang.pg@gmail.com> Discussion: https://www.postgresql.org/message-id/flat/TY2PR01MB24438A52DB04E71D0E501452F5630@TY2PR01MB2443.jpnprd01.prod.outlook.com
* Fix some typos, grammar and style in docs and commentsMichael Paquier2021-02-24
| | | | | | | | The portions fixing the documentation are backpatched where needed. Author: Justin Pryzby Discussion: https://postgr.es/m/20210210235557.GQ20012@telsasoft.com backpatch-through: 9.6
* Remove dead code in ECPGconnect(), and improve documentation.Tom Lane2021-02-11
| | | | | | | | | | | | | | | | | | | | | | | | The stanza in ECPGconnect() that intended to allow specification of a Unix socket directory path in place of a port has never executed since it was committed, nearly two decades ago; the preceding strrchr() already found the last colon so there cannot be another one. The lack of complaints about that is doubtless related to the fact that no user-facing documentation suggested it was possible. Rather than try to fix that up, let's just remove the unreachable code, and instead document the way that does work to write a socket directory path, namely specifying it as a "host" option. In support of that, make another pass at clarifying the syntax documentation for ECPG connection targets, particularly documenting which things are parsed as identifiers and where to use double quotes. Rearrange some things that seemed poorly ordered, and fix a couple of minor doc errors. Kyotaro Horiguchi, per gripe from Shenhao Wang (docs changes mostly by me) Discussion: https://postgr.es/m/ae52a416bbbf459c96bab30b3038e06c@G08CNEXMBPEKD06.g08.fujitsu.local
* Make ecpg's rjulmdy() and rmdyjul() agree with their declarations.Tom Lane2021-01-28
| | | | | | | | | | | | | We had "short *mdy" in the extern declarations, but "short mdy[3]" in the actual function definitions. Per C99 these are equivalent, but recent versions of gcc have started to issue warnings about the inconsistency. Clean it up before the warnings get any more widespread. Back-patch, in case anyone wants to build older PG versions with bleeding-edge compilers. Discussion: https://postgr.es/m/2401575.1611764534@sss.pgh.pa.us
* Remove duplicate includePeter Eisentraut2021-01-25
| | | | | Reported-by: Ashutosh Sharma <ashu.coek88@gmail.com> Discussion: https://www.postgresql.org/message-id/flat/CAE9k0PkORqHHGKY54-sFyDpP90yAf%2B05Auc4fs9EAn4J%2BuBeUQ%40mail.gmail.com
* Update ecpg's connect-test1 for connection-failure message changes.Tom Lane2021-01-23
| | | | | | | | | I should have updated this in commits 52a10224e and follow-ons, but I missed it because it's not run by default, and none of the buildfarm runs it either. Maybe we should try to improve that situation. Discussion: https://postgr.es/m/CAH2-Wz=j9SRW=s5BV4-3k+=tr4N3A03in+gTuVA09vNF+-iHjA@mail.gmail.com
* Suppress bison warning in ecpg grammar.Tom Lane2021-01-22
| | | | | | | | | opt_distinct_clause is only used in PLpgSQL_Expr, which ecpg ignores, so it needs to ignore opt_distinct_clause too. My oversight in 7cd9765f9; reported by Bruce Momjian. Discussion: https://postgr.es/m/E1l33wr-0005sJ-9n@gemulon.postgresql.org
* Avoid redundantly prefixing PQerrorMessage for a connection failure.Tom Lane2021-01-22
| | | | | | | | | | | | | libpq's error messages for connection failures pretty well stand on their own, especially since commits 52a10224e/27a48e5a1. Prefixing them with 'could not connect to database "foo"' or the like is just redundant, and perhaps even misleading if the specific database name isn't relevant to the failure. (When it is, we trust that the backend's error message will include the DB name.) Indeed, psql hasn't used any such prefix in a long time. So, make all our other programs and documentation examples agree with psql's practice. Discussion: https://postgr.es/m/1094524.1611266589@sss.pgh.pa.us
* Improve new wording of libpq's connection failure messages.Tom Lane2021-01-21
| | | | | | | | | | | | | "connection to server so-and-so failed:" seems clearer than the previous wording "could not connect to so-and-so:" (introduced by 52a10224e), because the latter suggests a network-level connection failure. We're now prefixing this string to all types of connection failures, for instance authentication failures; so we need wording that doesn't imply a low-level error. Per discussion with Robert Haas. Discussion: https://postgr.es/m/CA+TgmobssJ6rS22dspWnu-oDxXevGmhMD8VcRBjmj-b9UDqRjw@mail.gmail.com
* Uniformly identify the target host in libpq connection failure reports.Tom Lane2021-01-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prefix "could not connect to host-or-socket-path:" to all connection failure cases that occur after the socket() call, and remove the ad-hoc server identity data that was appended to a few of these messages. This should produce much more intelligible error reports in multiple-target-host situations, especially for error cases that are off the beaten track to any degree (because none of those provided any server identity info). As an example of the change, formerly a connection attempt with a bad port number such as "psql -p 12345 -h localhost,/tmp" might produce psql: error: could not connect to server: Connection refused Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 12345? could not connect to server: Connection refused Is the server running on host "localhost" (127.0.0.1) and accepting TCP/IP connections on port 12345? could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket "/tmp/.s.PGSQL.12345"? Now it looks like psql: error: could not connect to host "localhost" (::1), port 12345: Connection refused Is the server running on that host and accepting TCP/IP connections? could not connect to host "localhost" (127.0.0.1), port 12345: Connection refused Is the server running on that host and accepting TCP/IP connections? could not connect to socket "/tmp/.s.PGSQL.12345": No such file or directory Is the server running locally and accepting connections on that socket? This requires adjusting a couple of regression tests to allow for variation in the contents of a connection failure message. Discussion: https://postgr.es/m/BN6PR05MB3492948E4FD76C156E747E8BC9160@BN6PR05MB3492.namprd05.prod.outlook.com
* Allow pg_regress.c wrappers to postprocess test result files.Tom Lane2021-01-11
| | | | | | | | | | | | | | | | | | Add an optional callback to regression_main() that, if provided, is invoked on each test output file before we try to compare it to the expected-result file. The main and isolation test programs don't need this (yet). In pg_regress_ecpg, add a filter that eliminates target-host details from "could not connect" error reports. This filter doesn't do anything as of this commit, but it will be needed by the next one. In the long run we might want to provide some more general, perhaps pattern-based, filtering mechanism for test output. For now, this will solve the immediate problem. Discussion: https://postgr.es/m/BN6PR05MB3492948E4FD76C156E747E8BC9160@BN6PR05MB3492.namprd05.prod.outlook.com
* Re-implement pl/pgsql's expression and assignment parsing.Tom Lane2021-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | Invent new RawParseModes that allow the core grammar to handle pl/pgsql expressions and assignments directly, and thereby get rid of a lot of hackery in pl/pgsql's parser. This moves a good deal of knowledge about pl/pgsql into the core code: notably, we have to invent a CoercionContext that matches pl/pgsql's (rather dubious) historical behavior for assignment coercions. That's getting away from the original idea of pl/pgsql as an arm's-length extension of the core, but really we crossed that bridge a long time ago. The main advantage of doing this is that we can now use the core parser to generate FieldStore and/or SubscriptingRef nodes to handle assignments to pl/pgsql variables that are records or arrays. That fixes a number of cases that had never been implemented in pl/pgsql assignment, such as nested records and array slicing, and it allows pl/pgsql assignment to support the datatype-specific subscripting behaviors introduced in commit c7aba7c14. There are cosmetic benefits too: when a syntax error occurs in a pl/pgsql expression, the error report no longer includes the confusing "SELECT" keyword that used to get prefixed to the expression text. Also, there seem to be some small speed gains. Discussion: https://postgr.es/m/4165684.1607707277@sss.pgh.pa.us
* Add the ability for the core grammar to have more than one parse target.Tom Lane2021-01-04
| | | | | | | | | | | | | | | | | | | This patch essentially allows gram.y to implement a family of related syntax trees, rather than necessarily always parsing a list of SQL statements. raw_parser() gains a new argument, enum RawParseMode, to say what to do. As proof of concept, add a mode that just parses a TypeName without any other decoration, and use that to greatly simplify typeStringToTypeName(). In addition, invent a new SPI entry point SPI_prepare_extended() to allow SPI users (particularly plpgsql) to get at this new functionality. In hopes of making this the last variant of SPI_prepare(), set up its additional arguments as a struct rather than direct arguments, and promise that future additions to the struct can default to zero. SPI_prepare_cursor() and SPI_prepare_params() can perhaps go away at some point. Discussion: https://postgr.es/m/4165684.1607707277@sss.pgh.pa.us
* Update copyright for 2021Bruce Momjian2021-01-02
| | | | Backpatch-through: 9.5
* Use setenv() in preference to putenv().Tom Lane2020-12-30
| | | | | | | | | | | | | | | | | | | | | | | | Since at least 2001 we've used putenv() and avoided setenv(), on the grounds that the latter was unportable and not in POSIX. However, POSIX added it that same year, and by now the situation has reversed: setenv() is probably more portable than putenv(), since POSIX now treats the latter as not being a core function. And setenv() has cleaner semantics too. So, let's reverse that old policy. This commit adds a simple src/port/ implementation of setenv() for any stragglers (we have one in the buildfarm, but I'd not be surprised if that code is never used in the field). More importantly, extend win32env.c to also support setenv(). Then, replace usages of putenv() with setenv(), and get rid of some ad-hoc implementations of setenv() wannabees. Also, adjust our src/port/ implementation of unsetenv() to follow the POSIX spec that it returns an error indicator, rather than returning void as per the ancient BSD convention. I don't feel a need to make all the call sites check for errors, but the portability stub ought to match real-world practice. Discussion: https://postgr.es/m/2065122.1609212051@sss.pgh.pa.us
* revert removal of hex_decode() from ecpg from commit c3826f831eBruce Momjian2020-12-24
| | | | | | | | ecpglib on certain platforms can't handle the pg_log_fatal calls from libraries. This was reported by the buildfarm. It needs a refactoring and return value change if it is later removed. Backpatch-through: master
* move hex_decode() to /common so it can be called from frontendBruce Momjian2020-12-24
| | | | | | | This allows removal of a copy of hex_decode() from ecpg, and will be used by the soon-to-be added pg_alterckey command. Backpatch-through: master
* Fix some stray whitespace in parser filesPeter Eisentraut2020-11-11
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* Avoid re-using output variables in new ecpg test case.Tom Lane2020-11-07
| | | | | | | | | The buildfarm thinks this leads to memory stomps, though annoyingly I can't duplicate that here. The existing code in strings.pgc is doing something that doesn't seem to be sanctioned at all really by the documentation, but I'm disinclined to try to make that nicer right now. Let's just declare some more output variables in hopes of working around it.
* Fix ecpg's mishandling of B'...' and X'...' literals.Tom Lane2020-11-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These were broken in multiple ways: * The xbstart and xhstart lexer actions neglected to set "state_before_str_start" before transitioning to the xb/xh states, thus possibly resulting in "internal error: unreachable state" later. * The test for valid string contents at the end of xb state was flat out wrong, as it accounted incorrectly for the "b" prefix that the xbstart action had injected. Meanwhile, the xh state had no such check at all. * The generated literal value failed to include any quote marks. * The grammar did the wrong thing anyway, typically ignoring the literal value and emitting something else, since BCONST and XCONST tokens were handled randomly differently from SCONST tokens. The first of these problems is evidently an oversight in commit 7f380c59f, but the others seem to be very ancient. The lack of complaints shows that ECPG users aren't using these syntaxes much (although I do vaguely remember one previous complaint). As written, this patch is dependent on 7f380c59f, so it can't go back further than v13. Given the shortage of complaints, I'm not excited about adapting the patch to prior branches. Report and patch by Shenhao Wang (test case adjusted by me) Discussion: https://postgr.es/m/d6402f1bacb74ecba22ef715dbba17fd@G08CNEXMBPEKD06.g08.fujitsu.local
* Don't use custom OID symbols in pg_type.dat, either.Tom Lane2020-10-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | On the same reasoning as in commit 36b931214, forbid using custom oid_symbol macros in pg_type as well as pg_proc, so that we always rely on the predictable macro names generated by genbki.pl. We do continue to grant grandfather status to the names CASHOID and LSNOID, although those are now considered deprecated aliases for the preferred names MONEYOID and PG_LSNOID. This is because there's likely to be client-side code using the old names, and this bout of neatnik-ism doesn't quite seem worth breaking client code. There might be a case for grandfathering EVTTRIGGEROID, too, since externally-maintained PLs may reference that symbol. But renaming such references to EVENT_TRIGGEROID doesn't seem like a particularly heavy lift --- we make far more significant backend API changes in every major release. For now I didn't add that, but we could reconsider if there's pushback. The other names changed here seem pretty unlikely to have any outside uses. Again, we could add alias macros if there are complaints, but for now I didn't. As before, no need for a catversion bump. John Naylor Discussion: https://postgr.es/m/CAFBsxsHpCbjfoddNGpnnnY5pHwckWfiYkMYSF74PmP1su0+ZOw@mail.gmail.com
* Fix ancient bug in ecpg's pthread_once() emulation for Windows.Tom Lane2020-10-24
| | | | | | | | | | | | | | | | We must not set the "done" flag until after we've executed the initialization function. Otherwise, other threads can fall through the initial unlocked test before initialization is really complete. This has been seen to cause rare failures of ecpg's thread/descriptor test, and it could presumably cause other sorts of misbehavior in threaded ECPG-using applications, since ecpglib relies on pthread_once() in several places. Diagnosis and patch by me, based on investigation by Alexander Lakhin. Back-patch to all supported branches (the bug dates to 2007). Discussion: https://postgr.es/m/16685-d6cd241872c101d3@postgresql.org
* Add documentation and tests for quote marks in ECPG literal queries.Tom Lane2020-10-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ECPG's PREPARE ... FROM and EXECUTE IMMEDIATE can optionally take the target query as a simple literal, rather than the more usual string-variable reference. This was previously documented as being a C string literal, but that's a lie in one critical respect: you can't write a data double quote as \" in such literals. That's because the lexer is in SQL mode at this point, so it'll parse double-quoted strings as SQL identifiers, within which backslash is not special, so \" ends the literal. I looked into making this work as documented, but getting the lexer to switch behaviors at just the right point is somewhere between very difficult and impossible. It's not really worth the trouble, because these cases are next to useless: if you have a fixed SQL statement to execute or prepare, you might as well write it as a direct EXEC SQL, saving the messiness of converting it into a string literal and gaining the opportunity for compile-time SQL syntax checking. Instead, let's just document (and test) the workaround of writing a double quote as an octal escape (\042) in such cases. There's no code behavioral change here, so in principle this could be back-patched, but it's such a niche case I doubt it's worth the trouble. Per report from 1250kv. Discussion: https://postgr.es/m/673825.1603223178@sss.pgh.pa.us
* Avoid premature de-doubling of quote marks in ECPG strings.Tom Lane2020-10-22
| | | | | | | | | | | | | | | | | | | | | | If you write the literal 'abc''def' in an EXEC SQL command, that will come out the other end as 'abc'def', triggering a syntax error in the backend. Likewise, "abc""def" is reduced to "abc"def" which is wrong syntax for a quoted identifier. The cause is that the lexer thinks it should emit just one quote mark, whereas what it really should do is keep the string as-is. Add some docs and test cases, too. Although this seems clearly a bug, I fear users wouldn't appreciate changing it in minor releases. Some may well be working around it by applying an extra doubling of affected quotes, as for example sql/dyntest.pgc has been doing. Per investigation of a report from 1250kv, although this isn't exactly what he/she was on about. Discussion: https://postgr.es/m/673825.1603223178@sss.pgh.pa.us
* Fix -Wcast-function-type warnings on Windows/MinGWPeter Eisentraut2020-10-21
| | | | | | | | After de8feb1f3a23465b5737e8a8c160e8ca62f61339, some warnings remained that were only visible when using GCC on Windows. Fix those as well. Note that the ecpg test source files don't use the full pg_config.h, so we can't use pg_funcptr_t there but have to do it the long way.
* Use https for gnu.org linksPeter Eisentraut2020-10-14
| | | | Mostly already done, but there were some stragglers.
* Rethink API for pg_get_line.c, one more time.Tom Lane2020-09-22
| | | | | | | | | | | | Further experience says that the appending behavior offered by pg_get_line_append is useful to only a very small minority of callers. For most, the requirement to reset the buffer after each line is just an error-prone nuisance. Hence, invent another alternative call pg_get_line_buf, which takes care of that detail. Noted while reviewing a patch from Daniel Gustafsson. Discussion: https://postgr.es/m/48A4FA71-524E-41B9-953A-FD04EF36E2E7@yesql.se
* Allow most keywords to be used as column labels without requiring AS.Tom Lane2020-09-18
| | | | | | | | | | | | | | | | | | | | | | | | | Up to now, if you tried to omit "AS" before a column label in a SELECT list, it would only work if the column label was an IDENT, that is not any known keyword. This is rather unfriendly considering that we have so many keywords and are constantly growing more. In the wake of commit 1ed6b8956 it's possible to improve matters quite a bit. We'd originally tried to make this work by having some of the existing keyword categories be allowed without AS, but that didn't work too well, because each category contains a few special cases that don't work without AS. Instead, invent an entirely orthogonal keyword property "can be bare column label", and mark all keywords that way for which we don't get shift/reduce errors by doing so. It turns out that of our 450 current keywords, all but 39 can be made bare column labels, improving the situation by over 90%. This number might move around a little depending on future grammar work, but it's a pretty nice improvement. Mark Dilger, based on work by myself and Robert Haas; review by John Naylor Discussion: https://postgr.es/m/38ca86db-42ab-9b48-2902-337a0d6b8311@2ndquadrant.com
* Remove arbitrary line length limits in pg_regress (plain and ECPG).Tom Lane2020-09-06
| | | | | | | | | | | | | | | | | | | | | | Refactor replace_string() to use a StringInfo for the modifiable string argument. This allows the string to be of indefinite size initially and/or grow substantially during replacement. The previous logic in convert_sourcefiles_in() had a hard-wired limit of 1024 bytes on any line in input/*.sql or output/*.out files. While we've not had reports of trouble yet, it'd surely have bit us someday. This also fixes replace_string() so it won't get into an infinite loop if the string-to-be-replaced is a substring of the replacement. That's unlikely to happen in current usage, but the function surely shouldn't depend on it. Also fix ecpg_filter() to use a StringInfo and thereby remove its hard limit of 300 bytes on the length of an ecpg source line. Asim Rama Praveen and Georgios Kokolatos, reviewed by Alvaro Herrera and myself Discussion: https://postgr.es/m/y9Dlk2QhiZ39DhaB1QE9mgZ95HcOQKZCNtGwN7XCRKMdBRBnX_0woaRUtTjloEp4PKA6ERmcUcfq3lPGfKPOJ5xX2TV-5WoRYyySeNHRzdw=@protonmail.com
* Replace remaining StrNCpy() by strlcpy()Peter Eisentraut2020-08-10
| | | | | | | | | | | | | | | | | They are equivalent, except that StrNCpy() zero-fills the entire destination buffer instead of providing just one trailing zero. For all but a tiny number of callers, that's just overhead rather than being desirable. Remove StrNCpy() as it is now unused. In some cases, namestrcpy() is the more appropriate function to use. While we're here, simplify the API of namestrcpy(): Remove the return value, don't check for NULL input. Nothing was using that anyway. Also, remove a few unused name-related functions. Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://www.postgresql.org/message-id/flat/44f5e198-36f6-6cdb-7fa9-60e34784daae%402ndquadrant.com
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