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7.9.0
- Support parameterised versions of `query()` etc. (#646)
- Put all feature tests back in config header. (#732)
- Automate integration of feature tests into both CMake & autoconf. (#747)
- Streaming query result implements `std::input_iterator`. (#771)
- Fix broken `to_buf()` on `zview`. (#728)
- Support `PQfsize()` and `PQfmod()`. (#727)
- Implement conversion from `string_view` to string. (#728)
- Rename `splitconfig` to `splitconfig.py`. (#763)
- Document need for conversions more clearly, link to docs. (#757)
7.8.1
- Regenerate build files. Should fix ARM Mac build. (#715)
- Reinstate `<ciso646>` that MSVC can't live with or without. (#713)
7.8.0
- Streaming large data sets now benchmarks faster than similar C/libpq code!
- New `array` class for easier parsing of SQL arrays.
- Deprecating `stream_from`. Use `transaction_base::stream()`.
- Use `array_parser` only on comma-separated types, i.e. most of them. (#590)
- Bumping requirements versions: need postgres 10.
- Fix `array_parser` bug when parsing semicolon in an unquoted string.
- Make some `zview` constructors `noexcept` if `string_view` does it.
- Handle result status code for starting streaming replication. (#631)
- Faster text decoding and escaping in data streaming. (#601)
- Deprecate `basic_fieldstream` and `fieldstream`.
- Deprecate `<<` operator inserting a field into an `ostream`.
- New string conversion fields: `converts_to_string` & `converts_from_string`.
- Ran `autoupdate` (because the autotools told me to).
- Documentation tweak. (#584)
- Typo in README.md. (#586)
- Support `std::optional<std::string_view>` etc. in `stream_to`. (#596)
- Remove support for single-quoted array/composite elements. No such thing!
- Optimise out a kink in composite field parser.
- Work around build warning in MinGW: include `winsock2.h` before `windows.h`.
- Drop some redundant encoding groups.
- If CMake can't find libpq, fall back to pkg-config. (#664)
- Work around spurious compile error on g++ pre-gcc-10. (#665)
- Include `<pqxx/range>` and `<pqxx/time>` headers in `<pqxx/pqxx>`. (#667)
- Don't use `std::function` as deleter for smart pointers.
- Work around gcc compile error with regex + address sanitizer + analyzers.
- Fix "double free" on exit when built as shared library on Debian. (#681)
- Stop including `<ciso646>`; should be built into compilers. (#680)
- New `broken_connection` exception subclass: `protocol_violation`. (#686)
- Retired unused `blob_already_exists` exception class. (#686)
- Support for `PQinitOpenSSL()`. (#678)
- Slightly more helpful error for unsupported conversions. (#695)
- Replace some C++ feature tests with C++20 feature macros.
- Support moving of `stream_to`. (#706)
- Incorporate `source_location` in exceptions.
7.7.4
- `transaction_base::for_each()` is now called `for_stream()`. (#580)
- New `transaction_base::for_query()` is similar, but non-streaming. (#580)
- Query data and iterate directly as client-side types: `query()`. (#580)
- New ways to query a single row! `query01()` and `query1()`. (#580)
- We now have 3 kinds of execution: "exec", "query", and "stream" functions.
- Use C++23 `std::unreachable()` where available.
- `result::iter()` return value now keeps its `result` alive.
7.7.3
- Fix up more damage done by auto-formatting.
- New `result::for_each()`: simple iteration and conversion of rows. (#528)
- Add some missing headers in `<pqxx/pqxx>`. (#551)
- More strictness in `header-pre.hxx`/`header-post.hxx` checking.
- Disallow nesting of `ignore-deprecated` blocks.
- Deprecate `exec` functions' `desc` parameter.
- Fix `placeholders` documentation. (#557)
- Strip `const` and references from `value_type`. (#558)
- Get tests running on appveyor. (#560)
- Fix broken nonblocking connection on Windows. (#560)
7.7.2
- Fix up damage done by auto-formatting.
7.7.1
- When you build libpqxx, configure the compiler's C++ version yourself!
- Finally fix a long-standing silly warning in autogen.
- Fix `digit_to_number` not being found on some comilers. (#518, #519)
- In audit mode, define `_FORTIFY_SOURCE` to enable some extra checks.
- Make more functions `constexpr`. Nothing particularly useful though.
- Make more functions `noexcept`.
- Move constructor & assignment for `result`.
- Support LGTM.com and Facebook "infer" static analysis.
- Deprecated `set_variable`/`get_variable` on `transaction_base`.
- (Design unearthed warts in SQL variables, which were then fixed.)
- Set/get session variables on `connection`: `set_session_var`/`get_var`.
- Set/get local variables: execute SQL statements.
- When using `select()`, include `<winsock2.h>` if available.
7.7.0
- Fix `stream_to` for differing table/client encodings. (#473)
- Use `[[likely]]` & `[[unlikely]]` only in C++20, to silence warnings.
- Fix clang "not a const expression" error in Windows. (#472)
- Fix warnings about `[[likely]]` in `if constexpr`. (#475)
- Clearer error for ambiguous string conversion of `char` type. (#481)
- Pseudo-statement in `prepare()` error was for the wrong statement. (#488)
- New class, `connecting` for nonblocking connection to the database. (#487)
- New class, `range` for SQL range types. (#490)
- Replace `std::isdigit` with a safer alternative.
- Support string conversions for `std::chrono::year_month_day`. (#492)
- Helper for implementing string traits: `generic_to_buf`.
- Support `result::at(row_num, col_num)`.
- Support `result[row_num, col_num]` if the compiler allows it.
- Work around broken `std::filesystem::path` in MinGW. (#498)
- Fix leak when getting client encoding fails. (#500)
- Use `std::cmp_greater` etc. when available. Saves some ugly casts.
- Move `result_iterator.hxx` into `pqxx/include/internal/`.
- Move `compiler-public.hxx` into `pqxx/include/internal/`.
- Add script for updating copyright strings.
- Make `tools/lint` figure out source directory by itself.
- Pass the actual C++ version to `tools/lint`, not the baseline one.
- Re-enable pyflakes testing in `tools/lint`.
- Make more functions `[[nodiscard]]`.
- Qualified some member functions as lvalue or rvalue.
- Don't run clang-tidy by default. Compatibility issues with gcc options.
- Describe version requirements in a JSON file, `requirements.json`.
- Doxygen documentation now uses the (Doxygen-extended) Markdown format.
- Build docs in `doc/html/`, no longer in `doc/html/Reference/`.
- Disable some `std::filesystem` features on Windows.
- Shut up stupid Visual Studio warnings.
- On gcc, mark rarely-used functions as "cold," to be optimised for size.
- Glyph scanning for GB18030 encoding was utterly broken. (#517)
7.6.0
- Removed bad string conversion to `std::basic_string_view<std::byte>`. (#463)
- Add C++20 concepts: `binary`, `char_string`, `char_strings`.
- Generalise binary strings to any contiguous range of `std::byte`.
- Mark `zview` as a view and as a borrowed range.
- Save a copy step on string fields in `stream_to`.
- New helper: `pqxx::value_type<CONTAINER>`.
- New helper: `pqxx::binary_cast`. (#450)
- Some escaping functions now have "into my buffer" variants.
- More generic escaping functions, supporting more types of binary.
- In C++20, accept generic columns list for `stream_to`. (#447)
- Renamed `<pqxx/prepared_statement>` to `<pqxx/params>`.
- Deprecated `dynamic_params` in favour of `params`.
- `pqxx::params::append_multi()` now calls `reserve()` if possible.
- `pqxx::params::size()` is now `noexcept` (but sadly, `ssize()` is not).
- Helper for generating parameter placeholders `$1`, `$2`, etc. (#443)
- Now requires support for C++14 `[[deprecated]]` attribute.
- Deprecated `unesc_raw()` with `unesc_bin()` variants.
- Once `unesc_raw()` is gone, we'll support only the hex escape format.
- Work around broken `thread_local` in MinGW gcc < 11.1.
- `pqxx::blob` now supports `std::filesystem::path`.
- Fixed check against header/lib version mismatch: `check_pqxx_version_7_6`
- Deprecated result slicing. Expect `row::slice()` to disappear.
- More complete documentation, of cursors in particular.
7.5.2
- **Actual serious bug.** `blob::read(std::vector<...>)` was broken.
7.5.1
- Fixed some Visual Studio warnings.
- Missed a bit in working around MinGW's broken `<thread>`.
- Deprecated more obsolete representations of binary data. Use `std::byte`.
- New script `tools/deprecations` lists files that use deprecated code.
- Added automake-generated `config/compile` to revision control.
7.5.0
- Now requires `std::variant` support! No longer works with gcc7.
- When implementing a string conversion, consider specialising `param_format`.
- Stop "aborting" nontransaction on closing. (#419)
- Silence an overzealous Visual C++ warning. (#418)
- Starting support for C++20 `std::span`.
- New `blob::read()` using `std::span`. (#429)
- New `params` class lets you build parameter lists incrementally. (#387)
- Pass `std::vector<std::byte>` params in binary format.
- Dropped legacy tests 31 and 49 to work around clang C++20 bug.
- Fixed `stream_to` test failure in non-English locales. (#440)
- Clarify `transaction_base::stream` documentation. (#423)
- Avoid `<thread>` on MinGW; it's broken there. (#336, #398, #424, #441)
7.4.1
- Missing includes; broke macOS clang build. (#416)
7.4.0
- Work around Visual Studio 2017 bug with `[[deprecated]]`. (#405, #406)
- Work around eternal Windows bug with `max` macro yet again. (#101)
- Prepare for C++20 `std::ssize()`.
- Dropped test12, which didn't add much and tried to read null strings.
- Support string conversion for `std::monostate`. (#409)
- Consistent "named constructors" for `stream_to` and `stream_from`.
- New `table_path` type.
- New `connection` methods `quote_table` and `quote_columns`.
- Lots of deprecated stream constructors.
- `pqxx::row::swap()` now finally has the `deprecated` attribute.
- Finally deprecated a bunch of `field`, `row`, and `result` constructors.
- Exposed `transaction_focus` marker class.
7.3.1
- New, simpler API for large objects: `blob` ("binary large object").
- `largeobject` and friends are now deprecated.
- Fix visibility issue on gcc/clang, especially on macOS. (#395)
- Use "pure" & "visibility" attributes if they work, regardless of compiler.
- More deprecated items now have the `[[deprecated]]` attribute.
- Document the concept of transaction focus.
- Error messages more often report query description, if given.
- Suppress spurious deprecation messages on Visual Studio. (#402)
- Correct error when prepared/param statement clashes with tx focus. (#401)
- `from_stream` with `from_query` now has a convenient factory function.
- Removed some obsolete scripts from the `tools/` directory.
7.3.0
- `stream_to` now quotes and escapes its table name.
- Removed `transaction_base::classname()`. Did anyone ever use it?
- Internal reorg of the `transaction` and `transactionfocus` hierarchies.
- Removed the only case of virtual inheritance, related to `namedclass`.
- Internal `concat()` for faster, simpler string concatentation.
- Fix compile omission in string conversions for `nullptr_t`.
- `pqxx::size_buffer()` can now size multiple values at once.
- `multi_to_string()` to convert multiple values into one `std::string`.
- Implicit `zview` constructor from `char const *`. (#389)
- Many `std::string&` parameters are now `zview` or `std::string_view`.
- Now checking statement parameter lengths for overflow.
- `#include <array>` in connection.cxx. (#394)
7.2.1
- Fix infinite loop in converting `char *` to string. (#377)
- Deprecated `namedclass`.
- Convert an entire row using `row::as<type...>()`.
- Internal rework of `field::to()` and `field::as()` functions.
- Some more warning options in maintainer mode.
- Removed the old, DocBook-based tutorial.
- Fixed wrong `query` and SQLSTATE params to some exceptions. (#378)
7.2.0
- You can now implicitly convert a `const std::string &` to `zview`.
- Replaced some overloads for C strings and C++ strings with `zview`.
- Deprecating `binarystring`. Use `std::basic_string<std::byte>` instead!
- Array parser did not recognise escaping in unquoted values.
- gcc10 test build fix: a result iterator is not the same thing as a `row`.
- Doc fix: field size does _not_ include terminating zero. (#356)
- Fix error message in `demangle_type_name`: printed result, not raw name.
- Fix compile warning in `demangle_type_name` on GNU systems.
- Document that string conversions assume non-null values.
- Start playing with C++20 _concepts._
- Sketch out concepts-based `PQconnectdbParams` support. (#343)
- Add missing link to "datatypes" documentation. (#346)
- Supports `to_string`, `stream_to`, etc. for `binarystring`. (#312)
- Fixed infinite recursion when using `std::optional` in `stream_to`. (#364)
- Home-rolled hex-escaping. Saves an allocation.
- Catch floating-point negative overflow in `check_cast`, not underflow.
- Bit more work on CMake build doc. (#318)
- Typo in `datatypes.md`: `nullness`, not `nullness_traits`. (#353)
- Fixed test names map in `tests/runner.cxx`. (#354)
- Integral `from_string` now accept leading whitespace, as in composite types.
- Experimental support basics for composite types. (#355)
- Use `stream_from` without knowing the number of fields. (#357)
- Global `size_buffer` function.
- `quote()` now works for always-null types without conversions defined.
- `std::nullopt` now converts to an SQL null.
- Skip quoting and escaping array/composite fields of "safe" types.
- New type trait: `is_unquoted_safe`.
- Forbid invalid specialisations of `query_value`.
- Fixed `mktemp` invocation that broke on FreeBSD.
- Avoid unneeded encode/decode step on more binary data.
- If `__cxa_demangle` fails, fall back on raw type name. (#361)
7.1.2
- Document build in `BUILDING-configure.md` / `BUILDING-cmake.md`.
- Work around silly clang warning in `test_errorhandler.cxx`.
- Fix install error with some internal headers. (#322)
- Fix "No object selected" error message in large objects. (#324)
- If error has no SQLSTATE, throw `broken_connection`. (#280)
- Fix argument order in `encrypt_password`. (#333, #334)
- Fix underestimate of buffer size for `to_string` for floats. (#328)
7.1.1
- Compile fix for Visual Studio.
- Warning fix for clang.
- Also install `transaction_focus.hxx`. (#320)
7.1.0
- Query tuples straight into `std::tuple` using `transaction::stream()`!
- And, `stream_from` now supports more or less arbitrary queries.
- Instead of a tuple of fields, you can pass `stream_to` a container as well.
- `string_traits::size_buffer()` must now be `noexcept`.
- New `nullness` member: `always_null`.
- There is now `to_buf` support for string literals.
- Streaming data is now more efficient.
- The table name in `stream_from` is now escaped.
- You can now "convert" strings to `std::string_view`. Mind your lifetimes!
- A `std::variant` will now convert to string, if its member types do.
- If a `stream_from` row fails to convert, you can no longer retry it.
- `from_string(field const &)` now handles null values properly.
- Obsolete Windows build docs are gone.
- Added `row::to(std::tuple<...>)`.
- Unified the test suites. We no longer need `test/unit/unit_runner`.
- New helper: `strip_t<...>` to remove a type's constness and reference.
- Replace custom templating with CMake glob in `src/CMakeLists.txt`.
- Replace custom templating with CMake glob in `doc/CMakeLists.txt`.
- Replace custom templating with CMake glob in `test/unit/CMakeLists.txt`.
7.0.8
- Inline `type_name` in `PQXX_DECLARE_ENUM_CONVERSION`.
7.0.7
- Fix broken `--with-postgres-lib` option in `configure` script (#311)
- Should now build even if neither `pkg-config` nor `pg_config` is available.
- CMake accepts `PostgreSQL_ROOT`, if it's a sufficiently recent version.
7.0.6
- Prefer `pg_config` over `pkg-config` for include path (#291).
- Try to plod on if we don't know the PostgreSQL include path.
- Fix error message when starting overlapping transactions and such (#303).
- Fix potential crashes when converting invalid strings to floats (#307, #308).
7.0.5
- Compile fix for g++ 10: include `<limits>` (#292).
- Cleaned up error-checking of PG results. (#280).
- The `esc()` methods now also take `std::string_view` (#295).
7.0.4
- Fix possible crash in `connection::connection_string` (#290).
- Fix filtering of default values in `connection::connection_string` (#288).
- Deprecate `row::swap` and public inheritance of iterators from `row`.
- More copy/move/default constructors/assignments on result iterators.
- More copy/move/default constructors/assignments on row iterators.
7.0.3
- Fixed misreporting of broken connection as `sql_error` (#280).
- Replaced non-ASCII test texts with escape codes (#282, #283).
- `ilostream` could truncate at `0xff` byte at buffer boundary (#284, #286).
7.0.2
- New query function: `query_value`, queries and converts a single value.
- A `stream_from` stream can now be iterated.
- More callable types qualify as transactors, thanks to `std::invoke`.
7.0.1
- Windows build fixes.
- Documentation for writing your own string conversions.
- `transaction_rollback` and children are now `sql_error`, not just `failure`.
7.0.0
- Bumped minimum required C++ version to C++17.
- Everything has changed. If you're porting from older versions, be careful!
- There is now only one connection class: `connection`.
- Removed tablereader/tablewriter, replaced by stream_from/stream_to.
- Removed obsolete transactor framework, replaced by post-C++11 one.
- Removed old ways of invoking parameterised and prepared statements.
- Session variables are no longer cached.
- If you do weird stuff with setting/getting variables, it may break.
- Reading a variable written from raw SQL, procedures, etc, will now work.
- Prepared statements are now registered immediately.
- If you do weird stuff with preparing/unpreparing statements, it may break.
- Changed exceptions and errors for many error situations.
- Mishandling prepared statements will now break the connection.
- Many string references and const char pointers are now `std::string_view`.
- New `zview` class wraps `string_view` for string with terminating zero.
- The `stream_base` abstract base class is gone.
- Transactions no longer have an `isolation_tag` nested type.
- The `isolation_traits` type is gone.
- There's no more `pqxx_exception`. Complicated things too much.
- `pqxx::string_traits<>::name()` has been replaced with `pqxx::type_name`.
- `to_string()` can now handle `std::vector` (to produce an SQL array).
- All `from_string()` that took a C string now take a `std::string_view`.
- There are now separate `string_traits` and `null_traits` templates.
- Enums outside classes are now scoped enums.
- `error_verbosity` is no longer nested in connection.
- `connection::get_verbosity` is gone.
- Some enums have changed names: `accesspolicy` to `access_policy`, and so on.
- `dynamic_params` now accepts an accessor.
- Fixed "const" support in arguments to parameterised/prepared statements.
- Connection objects can now be moved.
- `connections::options()` has been replaced by `connection_string()`.
- Replaced pqxx-fulltest with `test_all.py`.
- Some `size_type` have changed to different types, to match current libpq.
- Internal overflows are more consistently caught and reported.
- Deprecated items have been removed.
- Large objects now require backend version 9.3 or better.
- Seeking inside large objects now supports 64-bit sizes.
- Visual Studio project files and sample headers are gone. Use CMake.
- MinGW Makefiles are gone. Use `configure` or CMake.
- Need PostgreSQL 10 to use robusttransaction.
- `robusttransaction` no longer uses a log table. Feel free to drop it.
6.4.4
- Use pkg-config if pg-config is not available.
- In CMake build, prefer CMake's config headers over any found in source tree.
6.4.3
- Updated copyright strings.
- Added missing "stream" headers to autotools-based install.
- Added stream headers to pqxx/pqxx header.
6.4.2
- Fix mistake for Windows in 6.4.1: use PQfreemem, not std::free.
- Easily enable runtime checks in configure: "--enable-audit".
- Enable optimisation in CircleCI build.
6.4.1
- Fixed more memory leaks.
6.4.0
- Half fix, half work around nasty notice processor life time bug.
- Fix selective running of tests: "test/unit/runner test_infinities".
- Added some missing `std::` qualifications.
6.3.3
- Throw more appropriate error when unable to read client encoding.
- CMake build fixes.
6.3.2
- Conversion errors no longer throw pqxx::failure; always conversion_error!
- Use C++17's built-in numeric string conversions, if available.
- Query numeric precision in a more sensible, standard way.
- Avoid "dead code" warning.
- Replace obsolete autoconf macros.
- Remove all "using namespace std".
- CMake build fixes.
6.3.1
- Windows compile fix (CALLBACK is a macro there).
- Work around Visual Studio 2017 not supporting ISO 646.
6.3.0
- New "table stream" classes by Joseph Durel: stream_from/stream_to.
- Support weird characters in more identifiers: cursors, notifcations, etc.
- Connection policies are deprecated. It'll all be one class in 7.0!
- Connection deactivation/reactivation is deprecated.
- Some items that were documented as deprecated are now also declared as such.
- Fix Windows bug where WSAPoll was never used. Thanks dpolunin.
- Fix Windows CMake build to link to socket libraries. Thanks dpolunin.
- Various other changes to the CMake build.
- Fix failure when doing multiple string conversions with Visual C++.
- Fix nested project builds in CMake. Thanks Andrew Brownsword.
- In Visual Studio, build for host architecture, not "x64".
- Fix string conversion link error in Visual Studio. Thanks Ivan Poiakov.
- Fix string conversion to bool for "1". Thanks Amaracs.
- Fix in escaping of strings in arrays. Thanks smirql.
- Faster copying of results of large queries. Thanks Vsevolod Strukchinsky.
- Starting to handle encodings properly! Thanks to Joseph Durel.
- No longer using std::iterator (deprecated in C++17).
6.2.5
- Removed deprecated pqxx-config.
- Build fix on Visual C++ when not defining NOMINMAX.
- Reduce setup code for string conversions, hopefully improving speed.
- Allow nul bytes in tablereader.
- Support defining string conversions for enum types.
- Fixed const/pure attributes warning in gcc 8.
- Updated build documentation to mention CMake option.
- Fixed a floating-point string conversion failure with Visual Studio 2017.
6.2.4
- Fix builds in paths containing non-ASCII characters.
- New macro: PQXX_HIDE_EXP_OPTIONAL (to work around a client build error).
6.2.3
- Build fixes.
6.2.2
- Variable number of arguments to prepared or parameterised statement (#75).
- Windows build fix (#76).
6.2.1
- Compile fixes.
6.2.0
- At last! A check against version mismatch between library and headers.
- Small compile fixes.
6.1.1
- Small compile fixes.
- A particular error string would always come out empty.
6.1.0
- Dependencies among headers have changed. You may need extra includes.
- Library headers now include "*.hxx" directly, not the user-level headers.
- Supports parsing of SQL arrays, when using "ASCII-like" encodings.
6.0.0
- C++11 is now required. Your compiler must have shared_ptr, noexcept, etc.
- Removed configure.ac.in; we now use configure.ac directly.
- Removed pqxx::items. Use the new C++11 initialiser syntax.
- Removed maketemporary. We weren't using it.
- Can now be built outside the source tree.
- New, simpler, lambda-friendly transactor framework.
- New, simpler, prepared statements and parameterised statements.
- Result rows can be passed around independently.
- New exec0(): perform query, expect zero rows of data.
- New exec1(): perform query, expect (and return) a single row of data.
- New exec_n(): perform query, expect exactly n rows of data.
- No longer defines Visual Studio's NOMINMAX in headers.
- Much faster configure script.
- Most configuration items are gone.
- Retired all existing capability flags.
- Uses WSAPoll() on Windows.
- Documentation on readthedocs.org, thanks Tim Sheerman-Chase.
5.1.0
- Releases after this will require C++11!
- Internal simplification to pqxx::result.
- A row object now keeps its result object alive.
- New exec() variants: "expect & return 1 row," "expect no rows," "expect n."
- ChangeLog is gone. It was a drag on maintenance.
5.0.1
- Exposed sqlstate in sql_error exception class.
5.0
- The PGSTD namespace alias is gone. Use the std namespace directly.
- pqxx::tuple is now pqxx::row, to avoid clashes with std::tuple.
- Deprecated escape_binary functions dropped.
- Deprecated notify_listener class dropped.
- Support for many old compilers dropped.
- Support for "long long" and "long double" types is always enabled.
- No longer uses obsolete std::tr1 namespace; use plain std instead.
- Now requires libpq 9.1 or better.
- Requires server version 9.1 or better.
- Support for REPEATABLE READ isolation level added.
- Makefile fixes for Visual Studio 2013.
- Supports C++11 and C++14.
- No longer has obsolete debian & RPM packaging built in.
- Fixed failure to abort uncommitted subtransactions on destruction.
- Fixed failure to detect some integer overflows during conversion.
- Build tooling uses /usr/bin/env python instead of /usr/bin/python.
- New configure options: --with-postgres-include and --with-postgres-lib.
- In g++ or compatible compilers, non-exported items are no longer accessible.
- Many build fixes for various platforms and compilers.
4.0
- API change: noticers are gone! Use errorhandlers to capture error output.
- API change: tablereaders and tablewriters are gone; they weren't safe.
- API change: prepared statements are now weakly-typed, and much simpler.
- API change: fields and tuples are now stand-alone classes in ::pqxx.
- API change: thread-safety field have_strerror_r is now have_safe_strerror.
- API change: notify_listener has been replaced with notification_receiver.
- notification_receiver takes a payload parameter.
- Easier Visual C++ setup.
- Absolutely requires a libpq version with PQescapeStringConn.
- Absolutely requires libpq 8.0 or better.
- Changes for C++0x.
- Supports clang++.
- Visual C++ makefiles now support new-style unit tests.
- Sample headers for more recent Visual Studio versions.
- Fixes binary-data escaping problems with postgres 9.0.
- Fixes problems with binary-string handling and escaping.
- Fixes compatibility problems between 9.x libpq and 7.x backend.
- quote_name to escape SQL identifiers for use in queries.
- syntax_error reports error's approximate location in the query.
- On Windows, now uses ws2_32 instead of wsock32.
- Various Windows build fixes.
- Updated for gcc 4.6.0.
- configure script supports --enable-documentation/--disable-documentation.
- Streamlined test/release toolchain.
3.1
- Shared libraries are now versioned by ABI: 3.1 instead of 3.1.0 etc.
- Threading behaviour is now documented, and can be queried.
- Version information available at compile time.
- Supports parameterized statements.
- Result tuples now support slicing.
- Configure with --with-tr1=boost to use BOOST shared_ptr.
- String conversion now has its own header file.
- Supports read-only transactions.
- Fixed breakage with Solaris "make".
- Uses shared_ptr if available.
- binarystring::str() is no longer cached; no longer returns reference.
- Fixed problems in Visual C++ Makefile for test suite.
- Fixed problems with RPM packaging.
- Fixed build problem on RedHat/CentOS 5.
- Lets you check whether a prepared statement has been defined.
- "Varargs" prepared statements.
- Unnamed prepared statements now supported.
- Results have iterator as well as const_iterator.
- Rewrite of robusttransaction logic; may actually do its job now.
- Connections support async query cancel from signal handler or thread.
- More documentation for performance features.
3.0
- Website is now at http://pqxx.org/ (no redirects)
- Completely replaced cursor classes
- More helpful error messages on failed connections
- More detailed hierarchy of constraint-violation exception classes
- trigger is now called notify_listener, trigger header is now notify-listen
- New mixin base class pqxx_exception distinguishes libpqxx exception types
- Quoting is back! transaction_base::quote() & connection_base::quote()
- Several build & documentation problems with Visual C++ fixed
- Compile fixes for gcc 4.2, 4.3
- Compile fixes for Sun Studio Express 5.9
- Uses strlcpy() where available, instead of strncpy()
- Keeps better track of applicable text encodings
- Fixed bug with prepared statement parameters in separate C++ statements
- robusttransaction now works for multiple users
- Pipeline lets you cancel ongoing queries, e.g. because they run for too long
- Fixed broken escaping of binary values in tablewriter
- Floating-point types now represented with full precision
- Proper unit tests for new functionality
- New traits-based system for adding data types
- Floating-point infinities now supported
- Flushing/completing a pipeline now frees up the transaction for other use
- Completely reworked test suite, builds and runs much faster
- tablewriter supports writing of raw lines
2.6.9
- Removed old 1.x API (that means all identifiers with capital letters!)
- Tested with all current libpq versions and oldest/newest supported backends
- No longer have old OnCommit()/OnAbort()/OnDoubt() callbacks in transactor!
- Fixes failure when closing cursors with upper-case letters in their names
- Fixes bug when adding triggers to connections that aren't open yet
- Fixes bug when removing triggers
- Fixes small memory leak when preparing statements
- Fixes many problems with older backends
- Fixes bug in result::swap(): protocol versions were not swapped
- Some errors went undetected when using certain libpq versions
- Fixes prepared statements on new libpq versions talking to old backends
- Can estimate server version if libpq does not know how to obtain it
- Greatly reduced memory usage while escaping strings
- With Visual C++, creates lib/ directory if not already present
- Useful error messages when preparing statements
- Allows prepared statements to be registered explicitly
- Support for "long long" types; enable with PQXX_ALLOW_LONG_LONG macro
- Compilation errors for older libpq versions fixed
- Some new small utility classes for disabling notice processing etc.
- Result sets remember the queries that yielded them
- New test script, pqxx-fulltest, tests against all current postgres versions
- Connections can simulate failure
- Adds password encryption function
2.6.8
- Fixes bug: binary parameters to prepared statements truncated at nul bytes
- New, more specific exception types to distinguish errors from server
- Resolved serious problems with generated reference documentation
- Automatically detect Windows socket library with MinGW
- Windows "make" fixed to run from main directory, not win32
- Fixes "mktemp" problems on some BSD-based platforms
- pqxx-config is deprecated; use pkg-config instead
- On GNU/Linux, uses poll() instead of select() to avoid file descriptor limit
- Will provide server and protocol version information where available
- New cursor class, absolute_cursor
2.6.7
- New escape functions for binary data: transaction_base::esc_raw()
- Improved detection of socket libraries, especially for MinGW
- Works around bug in some versions of GNU grep 2.5.1
- Fixes problem with configuration headers
- Fixes PQprepare() detection
- Fixes incomplete Visual C++ Makefile
- Fixes compile error in workaround for older libpq versions
- Removes "rpath" link option
2.6.6
- New, encoding-safe string-escaping functions
- Upper-case letters now allowed in prepared-statement names
- Fixes crash in test005
- More Visual C++ improvements
- Removed collaboration diagrams from reference docs
- New templating system for generating Windows Makefiles etc.
2.6.5
- Visual C++ users: copy win32/common-sample to win32/common before editing it
- Should fix problems finding socket library on MinGW
- Even more work on Visual C++ problems
- Updated documentation for Visual C++ users
- Fixed bug in prepared statements (mostly visible on Visual C++)
- Nested transactions work harder to detect backend support
2.6.4
- Massively improved compatibility with Windows and Visual C++
- Fixed late initialization of "direct" connection state
- Fixed problem with initialization of connection capabilities
- Fixed configuration bug for libpq in nonstandard locations
- Sample configuration header for libpq found in PostgreSQL 8.1
2.6.3
- Radical rework of prepared statements; INCOMPATIBLE INTERFACE CHANGE!
- Dropped support for g++ 2.95
- Emulate prepared statements support on old libpq or old backend
- Bug fix: missing tutorial (release script now tests for this)
- Automatically links in socket library on Windows or Solaris, if needed
- Bug fix: check for std namespace didn't work
- Fixes for Cygwin/MSYS/MinGW
2.6.2
- Bug fix: connection state was not set up properly in some common cases
- Bug fix: headers were installed in "include" instead of "include/pqxx"
- Bug fix: sqlesc(string) broke with multibyte or multiple encodings
- namedclass is now used as a virtual base; affects all subclass constructors
- Initial implementation of subtransactions
- Detect more connection capabilities
- Standard library namespace can be set from configure script's command line
- Completely reworked connection hierarchy, with separate policy objects
- Clients can now define their own connection policies
- Paved the way for client-defined thread synchronization
- Now lives at http://thaiopensource.org/development/libpqxx/
2.6.1
- Hugely improved recognition of different strerror_r() versions
- Resolved link problems with gcc 4.0 and shared library
2.6.0
- New macro PQXX_SHARED defines whether to use/build libpqxx as shared library
- Robusttransaction compatible with PostgreSQL 8.1
- Infrastructure for querying connection/backend capabilities at runtime
- Greatly improved cursor support
- Connection reactivation can be inhibited explicitly
- Tries even harder to make sense of conflicting strerror_r() definitions
- Detects connection failures that libpq glosses over
- Reference documentation grouped into more coherent sections
- Assumes strerror() is threadsafe on systems that have no strerror_r()
- Now allows connection's socket number to be queried
- New internal_error class for libpqxx-internal errors
- With Visual C++, doesn't redefine NOMINMAX if it is defined already
- Several compatibility improvements for Visual C++
- Fixes and workarounds for HP-UX and HP aCC compiler
- Phased old cursor interface out of test suite; tests ported to new interface
- Added documentation on thread safety
- New thread safety model
- Large objects have functions to tell current position
- Minor updates to tutorial (somebody pay me and I'll do more :)
- No longer needs libpq-fs.h header
- Meaningful error messages for ambiguous string conversions fixed
2.5.6
- Support null parameters to prepared statements (use C-style char pointers)
2.5.5
- Diagnoses connection failure during result transfer
- Fixes invalid -R link option in pqxx-config
2.5.4
- Fix workaround code for older libpq versions without PQunescapeBytea()
- Work around grep bug in Fedora Core 4 that broke configure in UTF-8 locales
- In Visual C++, assume libpqxx is a DLL when linking to std library as DLL
- Missing documentation in distribution archive is back again
- Export fewer symbols from library binary with gcc 4.0
- Releases now automatically tested against gcc 4.0
- Meaningful link errors for additional ambiguous string conversions
- DLL symbol exports now automatically tested before each release
2.5.3
- Greatly improved builds on MinGW with MSYS
- All known problems with MinGW fixed
- Fix bugs in stream classes that caused failures and crashes with STLport
- Detects and uses STLport automatically
2.5.2
- Fix memory leaks
- Fix problems with NaN (not-a-number values) on some compilers
2.5.1
- Fix configure script; broke when very recent libpqxx was already installed
- Fix cursor breakage when "long" is more than 32 bits
- Fix cases where new-style abort/doubt handlers are used
- Fix for division-by-zero error in Visual C++ (changed sample headers)
- Improved checking for strerror_r in configure script
- Fix for problem MinGW has with configure script
- Fix spurious failure of Oid check in configure script
2.5.0
- Fix race condition in removing triggers
- Fix binary string conversion with older libpq
- Fix some error strings that may previously have come out wrong
- No longer includes any libpq headers while compiling client code
- Improved thread safety: avoid strerror() where possible
- Prepared statements
- Translate more error conditions to std::bad_alloc exception
- Clearer and more specific explanations for configuration failures
- Improved documentation
- Looks for standard library in global namespace as well as std
- Accepts standard C library in std namespace
- Release script automatically tests with a range of compilers, not just one
- Compatible with g++ 2.95 again; this time it's tested automatically
2.4.4
- Fix problems building shared library in Visual C++
- Fix autobuild in Debian, which was broken by mistake in BSD grep workaround
- Fix conversion of string to floating-point type NaN
- Remove stray CVS directories from distribution archive
- Workaround for Visual C++ problem when issuing messages from destructors
- Yet more workarounds for Visual C++ bugs
- Fix situation where connection state might not be restored after failure
- Fix configuration problem on SunOS
- Network speedup in connection setup with pending variables and/or triggers
2.4.3
- Yet more workarounds for bugs in Visual C++ .NET 2003
- Fixes for SunC++ 5.5
- On Visual C++, now defines NOMINMAX, fixing large object support
- Workaround for BSD grep
- Improvements for builds from CVS
- Sample config headers for Sun ONE Studio 8
2.4.2
- Fix minor problems with Apple's version of g++ 3.3
- Fix problem with MingW on Windows
- Workarounds and fixes for Visual C++.NET 2003
- Renewed compatibility with g++ 2.95
- More sample configuration headers
- Updated reference documentation
- Removed assert code
2.4.1
- Several bugs in icursor_iterator fixed; incompatible interface changes
- Tightens throw specifications on begin(), end(), size(), capacity()
- Containers define reference and pointer types
- Implements swap() in all container types
- Implements == and != in all container types
- Stabilizes new (but still limited) cursor interface
- icursor_iterator thinks purely in stride granularity
- Introduces </<=/>/>= comparisons for icursor_iterators
- Allows "adopted SQL cursors" in new cursor interface
- Reference-counting in binarystrings, so they can be copied (and efficiently)
- Fixes reference-to-temporary problem with std::reverse_iterator in results
- Result/tuple reverse_iterators no longer require std::reverse_iterator
- Includes some sample config headers (in config/sample-headers)
- Replaces iffy autoconf checks (avoid failures with maintainer mode's -Werror)
- Fixes incompatibility with some implementations of Unix "cut" program (again)
2.4.0
- Fixes incompatibility with some implementations of Unix "cut" program
- Fixes "ptrdiff_t redefinition" problem in some environments
- More container-like tuples, so fields can be iterated
- All size_type types are now unsigned
- More conservative robusttransaction--thanks Tom Lane
- Stream-like extraction operator for result field conversion
- Warnings about deprecated headers now suppressed while compiling library
- Iterator constructors and copy assignments now have empty throw specs
2.3.0
- Generates MinGW Makefile automatically
- Documents MinGW build
- Workaround for missing prepared-statement support
- Potential bug fixed in closing of connections
- Fixed incompatibility between new cursor streams and older backends
- Removed pqxxbench
2.2.9
- Bugfix in removing trigger
- Added "failed connection" to regression test
- Some changes to throw specifications
- Putting libpq in its own namespace is optional
2.2.8
- Moved libpq into pqxx::internal::pq namespace
- New config system separates compiler-related items from libpq-related ones
- Auto-generates Visual C++ Makefile, should always remain up-to-date now
2.2.7
- Bugfix: from_string() didn't handle LONG_MIN--thanks Yannick Boivin
2.2.6
- Complete "pipeline" rewrite, for better exception safety
- New garbage collection scheme for "result;" constructors now exception-free
2.2.5
- First new cursor classes!
- Fixed strange failure in tablewriter during large insertions
- Updated tutorial
2.2.4
- New utility class template, items<> for easy container initialization
- New utility function template, separated_list()
- Error handling bugfix in tablewriter
- Fixed tablereader handling of lines ending in empty fields
- tablereader lines no longer end in newline with old libpq versions
2.2.3
- Trigger names no longer need to be proper identifiers
- Compile fixes for g++ 3.4.0 and other modern compilers
- Tablestreams may specify column lists
- Deprecated Quote() in favour of sqlesc(); improved quoting
- Fixed generation of libpqxx.spec
2.2.2
- Bugfix in fieldstream w.r.t. reading strings on some systems
- Renamed config.h to internalconfig.h to avoid confusion
- New connection functions allow client to sleep until notification arrives
- Notification functions return number of notifications received
- Even fewer client-visible macros exported by libconfig.h
2.2.1
- New, 2.x-style string conversions without locale problem
- Documentation improvements
- Implemented result::swap()
2.2.0
- Installs to /usr/local by default, NOT to /usr/local/pqxx like before!
- Uses Postgres-provided script to find Postgres (thanks Peter Eisentraut)
- Which means no more configure arguments required on Irix (thanks Arjen Baart)
- Fixes long-standing bug in result class!
- New pipeline class for throughput optimization
- New field stream class: read result field as C++ stream
- Separate namespace pqxx::internal for definitions not relevant to the user
- More Windows compilation fixes
- SUN Workshop 6 compile fixes and workarounds (thanks Jon Meinecke)
- Implemented reverse_iterator for result class
- Checks for functional std::reverse_iterator template
- Preliminary Makefile for MinGW compiler (thanks Pasquale Fersini)
- Changed the way unique<> works
- Checks for functional std::count_if()
- Bugs fixed & test programs added
2.1.3
- Makefile fixes for Visual C++, thanks Paresh Patel
- Library ABI versioning implemented, thanks Roger Leigh
- Uses old SQL isolation level syntax for compatibility, thanks [email protected]
- tablestreams can explicitly complete() before destructor
- Bugfix in robusttransaction: forgot to set isolation level
- Fixed off-by-ones in tablewriter escape code
- tablestreams now use \n-style escape sequences
- tablestreams support octal numbers
- Freely definable "null" strings in tablestreams, as originally intended
- Improved Debian packaging, thanks Roger Leigh
- tablestreams use libpq's new-style COPY functions, if available
- Extended automation of build/release procedure
- tablewriter writes in nonblocking mode to help hide communication latency
- Can get backend variables as well as set them
- More configuration macro cleanups
- Workaround for missing clear() in standard string
- Merry Christmas!
2.1.2
- Compile fix for gcc libstdc++ 2.9, thanks Jaroslaw Staniek
- Moved deprecated functions below current ones
- Cleanups for Debian packaging (thanks Roger Leigh, new Debian maintainer!)
- Updated authors listings
- Bumped ABI version number for the first time (now 2:0:1)
2.1.1
- More workarounds for gcc 2.95
- Automated tools keep test makefiles up to date
2.1.0
- Asynchronous connections
- Fixed configure --includedir option (thanks Ray Dassen!)
- Compile fixes for SUN Workshop 6, and one for gcc on FreeBSD 4.8
2.0.0
- New stable release!
- Includes all changes since 1.5 release.
- Workarounds for Microsoft Visual C++ 7 problems. Thanks Costin Musteata!
- No longer need to define PQXX_NO_PARTIAL_CLASS_TEMPLATE_SPECIALISATION
- Integrated Windows configuration into regular configuration
- Only uses #warning if preprocessor supports it
- Works on libpq versions without PQ[un]escapeBytea()
1.9.9
- Minor documentation changes
1.9.8
- Workaround for compile problem with postgres 7.3
- Convenience typedef for transaction<>: "work"
1.9.7
- binarystring rewritten and moved to its own file
- binarystring::size() does not include terminating null byte!
- Implemented escaping of binary strings
- Fix in workaround for missing numeric_limits on some compilers
- String conversion supported for unsigned char *
- More helpful link errors for unsupported string conversions
- Complete test coverage
1.9.6
- Fixes in "field table" support
- Improved coexistence with client program's config.h, if any
- Prefixed autoconf macros used in headers with "PQXX_"
1.9.5
- Header file contents moved to .hxx files for editor filetype recognition
- Fixes wrong timestamp for include/pqxx/result in 1.9.4 distribution
1.9.4
- Fixes Visual C++ build problem when compiling as library
1.9.3
- Quick release for various minor changes
1.9.2
- Renamed most public member functions to all-lower-case names
- <pqxx/all> (previously <pqxx/all.h> is now called <pqxx/pqxx>
1.9.1
- tablestream destructor crashed if table didn't exist (thanks Sean [Rogers?])
- Renamed all header files to remove ".h" suffix
- Tables created by regression test now prefixed with "pqxx" for safety
- Large objects now considered stable
- Migrated tutorial from SGML to DocBook XML (thanks Wichert Akkerman)
- Added tests 57-59
- Fixed compile error in largeobject
- Updated Windows makefiles
1.9.0
- EVERYTHING HAS CHANGED. Read the list or run into trouble!
- CURSOR HAS INCOMPATIBLE CHANGES AND MAY BE REPLACED COMPLETELY
- CACHEDRESULT HAS INCOMPATIBLE CHANGES (won't compile without changes)
- REVISE YOUR TRANSACTORS; now templatized on transaction type
- Finally got license file in order
- Incompatible change in setting transactor quality of service
- Cursors require serializable isolation level (checked at link time)
- Renamed Connection_base to connection_base, Connection to connection,
LazyConnection to lazyconnection
- Renamed LargeObject to largeobject, LargeObjectAccess to largeobjectaccess
- Renamed Noticer to noticer
- Renamed Trigger to trigger
- Renamed Result to result, Tuple to tuple, Field to field
- Renamed Unique<> to unique<>
- Renamed CachedResult to cachedresult
- Transformed Transaction Taxonomy (TTT):
- Renamed Transaction_base to transaction_base
- Renamed Transaction to transaction
- Renamed Transactor to transactor<> (now a template)
- Implemented transaction isolation levels as compile-time static properties
- transaction and robusttransaction now templatized on their isolation levels
- cachedresult requires serializable isolation level (checked at link time)
- Now need to include pqxx/transactor.h yourself if you need transactors
- Large objects require real backend transaction at compile time
- New type oid and constant oid_none for row identifiers resp. null oid
- Added some forgotten PQXX_LIBEXPORTs
- Tweaked documentation in many places
1.8.1
- By popular request: more convenient way to read field values
- Documented locale sensitivity of ToString(), FromString(), Field::to()
1.8.0
- Compiles on gcc 2.95 again (heavy streambuf workarounds in largeobject.h)
- ConnectionItf renamed to Connection_base, TransactionItf to Transaction_base
- connectionitf.h is now connection_base.h, transactionitf.h connection_base.h
1.7.8
- BinaryString class for unescaping bytea strings
- PQAlloc template keeps track of libpq-allocated objects
- Removed some consts in Unique<>, ConnectionItf, sorry!
- Can now set session variables on connections, transactions
1.7.7
- ./configure also looks for postgres in /usr/local/pgsql
- test007 now uses SQL_ASCII as its test encoding
- integrated Greg Hookey's Debian packaging
1.7.6
- added postgres library (libpq) to dynamic link path
1.7.5
- added test052 - test055
- added Result::Tuple::ColumnNumber()
- also test setting of client encodings
- removed superfluous versions of to_file() from large object classes
1.7.4
- new exception class, sql_error, remembers query text
- moved exception classes to new file include/pqxx/except.h
- test cases report texts of any failed queries
- added tools/rmlo.cxx
1.7.3
- default constructors for connection classes
- revamped seeking operations on large objects
- better error messages in large objects
- added test050, test051
1.7.2
- more workarounds for Sun CC 5.1, thanks Jeroen van Erp!
- preliminary support for "named" queries
- can now Quote() string constants
- included Doxyfile in distribution archive
- helps avoid Windows memory allocation problem in DLLs
- allows setting of client character set encoding
1.7.1
- regenerated documentation
1.7.0
- removed all deprecated features
- connection string documentation in README
- separate Connection, LazyConnection classes
- made test001 more concise
- added test049
1.6.4
- configure script now respects different std namespace
1.6.3
- olostream, lostream now flush themselves before closing
- fixed compilation problems when using ToString<>() on a plain char *
- compilation fixes for Sun compiler (thanks Jeroen van Erp!)
- added .pc file for pkgconfig (thanks Ray Dassen!)
1.6.2
- Debian packaging added to distribution archive
- new ilostream, olostream, lostream classes
1.6.1
- large object's cunlink() replaced by remove()
- default constructor for LargeObject
1.6.0
- new large objects interface
- added test048
1.5.0
- allow result fields to be written to streams
- removed confusing CachedResult::clear()
- minor documentation updates
- added test046, test047
- added <pqxx/all.h> convenience header
1.4.5
- fixed crash CachedResult that was less shallow than I thought
- fixed quoting problem with adopted SQL cursors
1.4.4
- (forgot to save cursor.cxx with new constructor in 1.4.4, sorry)
1.4.3
- all tests now have three-digit numbers
- Cursor can adopt SQL cursor returned by a function
1.4.2
- bugfix in CachedResult when accessing empty Results
- minor documentation improvements
1.4.1
- documents new homepage: http://pqxx.tk/
- Connection constructor accepts null connect string
- Exec() now also takes queries as C++ strings
1.4.0
- Connection::IsOpen() renamed to is_open()
- NoticeProcessor replaced by Noticer (with C++ linkage)