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Changelog

5.2.0 (2024-08-01)

  • Support MSVC compiler (Jonah Beckford)

  • Add extended_errcode_int function (Petter A. Urkedal)

  • Fix memory alloc in caml_sqlite3_backup_init() (Mark Elvers, Pierre Boutillier, and Benjamin Canou)

  • Add Github CI (Yilin Wei)

  • Detect pkgconf on Windows/mingw (Mark Elvers, reviewed by Shon Feder)

  • Fixed shadowing of agg_ctx when using sizeof.

  • Formatted sources using ocamlformat and clang-format.

  • Fixed switch syntax error flagged by cppcheck.

  • Added .editorconfig.

  • Removed superfluous macro conditions.

  • Improved API documentation formatting.

  • Improved README, license file, copyright notices, and changelog format.

5.1.0 (2021-09-22)

  • Added let&-operator for implicit closing of an opened database.

    Thanks to Yawar Amin [email protected] for this contribution.

5.0.3 (2021-03-18)

  • Fixed missing GC registration of init values in aggregate functions.

  • Fixed call to final aggregate function when not calling step function.

  • Fixed incorrect required OCaml version (now 4.12).

5.0.2 (2020-07-30)

  • Added missing dune-configurator dependency.

  • Removed redundant build dependencies.

  • Use caml_alloc_initialized_string wherever possible.

  • Fixed documentation typos and wording.

  • Added support for const char strings in stubs due to stricter handling in newer OCaml runtimes. This eliminates C-compiler warnings.

5.0.1 (2019-12-01)

  • Added missing :with-test declaration in Dune project file.

  • Improved portability to older SQLite3 versions.

5.0.0 (2019-12-01)

  • Breaking change:

    • Data.to_string is now Data.to_string_coerce to reflect that we convert non-string data to strings.

  • Added support for SQLite3 window functions.

  • Added Sqlite3.Rc.check and Sqlite3.Rc.is_success for easier return code checking.

  • Added Sqlite3.prepare_or_reset for reusing prepared statements in loops.

  • Added Sqlite3.iter and Sqlite3.fold for more convenient handling of row data.

  • Added more data conversion functions, also for direct access to column data.

  • Added more data binding functions.

  • Improved closing behavior of database using new SQLite3 API.

  • Improved testing framework using ppx_inline_test.

  • Each test case now has its own database for parallel testing.

  • Switched from caml_alloc_custom to caml_alloc_custom_mem.

  • Switched to OPAM file generation via dune-project.

  • Improved compatibility with older OCaml versions. Thanks to Simon Cruanes for this patch.

Thanks to Shawn [email protected] and Ted Spence [email protected] for their work on these contributions.

4.4.1 (2018-10-25)

  • Switched to dune, dune-release, and OPAM 2.0

4.4.0 (2018-04-26)

  • Support for new open flags:

    • uri - for URI filename interpretation
    • memory - for in-memory databases

    Thanks to Raman Varabets for this contribution.

  • Fixed warnings and errors in configuration code due to upstream changes.

4.3.2 (2017-11-27)

  • Added missing -lpthread linking flag to avoid problems with projects that do not link with the OCaml threads library.

4.3.1 (2017-11-22)

  • Improved finalization of databases and statements for better performance

4.3.0 (2017-10-10)

  • Improved compatibility with MSVC

  • Used untagging and unboxing attributes on external functions

4.2.0 (2017-08-03)

  • Switched to jbuilder and topkg

  • Added backup functionality

    Thanks to Markus W. Weissmann [email protected] for this contribution.

Changes Before Version 4.2.0

2017-06-11: Fixed return value bug in enable_load_extension. The result
            was the opposite of what the API documentation says.

2017-01-04: Added external dependency to OPAM spec for openSUSE support.

2017-01-03: Fixed incorrect LGPL license reference in Oasis specification.
            The software is actually distributed under the Expat-license.

2016-12-15: Added new functions for more efficient and convenient blob access:

              * column_blob
              * row_blobs

            Thanks to Nicolas Ojeda Bar <[email protected]>
            for this patch.

2016-10-07: Some portability improvements and Travis integration

            Thanks to Leonid Rozenberg <[email protected]> for his Travis work.

2016-06-14: Changed default configuration setting for loadable extensions
            on Mac OS X. Due to frequent installation issues the default
            setting is now to turn off loadable extensions on that platform.
            You will have to explicitly turn them on if you need them.

2016-05-24: Fixed a bug finalizing user-defined functions for a database.

            Thanks to Mark Bradley <[email protected]> for this patch.

2015-11-18: More build process improvements for Homebrew users.

            Thanks to Leonid Rozenberg <[email protected]> for this patch.

2015-11-05: Improved build process for Homebrew users.

            Thanks to Leonid Rozenberg <[email protected]> for this patch.

2015-09-02: Major API change that is compatible with major release series 2:

            We can now return errors from user-defined SQL-functions by raising
            (arbitrary) exceptions. This somewhat tricky internal change
            eliminates the need for Data.ERROR and reestablishes compatibility
            with major release series 2.

            Sorry for the churn, but the more elegant solution was not obvious.

2015-08-29: Added user function error handling (major API change).

            Thanks to Joseph Young for this patch.

2015-01-29: Fixed a build problem due to Oasis/ocamlbuild inconsistency.

            Thanks to Leonid Rozenberg <[email protected]> for this patch.

2014-10-08: Fixed a callback locking bug when encountering rows containing
            unexpected NULLs.

            Thanks to <[email protected]> for this patch.

2014-07-04: Moved to GitHub.

2012-12-02: Added new functions

              * sleep
              * clear_bindings

            Old operating system distributions may have had problems linking
            these functions, but reasonably recent ones support them.

2012-11-19: Added missing .mldylib file for shared library support.

            Thanks to Hugo Heuzard for the bug report.

2012-07-20: Downgraded findlib version constraint to support the Debian
            testing branch.

2012-07-16: Replaced String.trim function in myocamlbuild.ml to allow
            compiling with OCaml 3.12.1.

2012-07-15: New major release version 2.0.0:

              * Upgraded to OCaml 4.00
              * Switched to Oasis for packaging
              * Switched to OCamlBuild for the build process
              * Rewrote README in Markdown
              * Added stricter compilation flags

2012-05-19: Fixed cpp warnings and removed superfluous check for dynamic
            linking library. The latter improves portability to FreeBSD.

            Thanks to Stéphane Legrand <[email protected]> for the bug report.

2011-03-10: Added sqlite3_open_v2 functionality.

            Thanks to Mike Lin <[email protected]> for the initial patch.

2010-12-20: Fixed linking problem with loadable module support.

            Thanks to Adrien Nader <[email protected]> for the patch.

2010-09-18: Fixed segfault related to incorrect handling of exceptions raised
            from user callbacks.

            Thanks to William Le Ferrand <[email protected]> for the bug
            report.

2009-12-15: Fixed segfault related to exceptions raised from C.

            Thanks to Gareth Smith <[email protected]> for the
            bug report.

2009-09-14: Fixed build problem.

2009-09-13: Removed deprecated functions and improved build process.

2009-09-08: Added "changes" function.

            Thanks to <[email protected]> for this patch.

2009-08-22: enable_load_extension now raises an exception if unsupported.

2009-07-28: Added better support for compiling with MSVC and ocamlbuild.

            Thanks to <[email protected]> for this patch.

2009-05-23: Fixed example to be consistent with new API.

2009-05-16: Fixed mishandling of OCaml-runtime lock when callbacks raise
            exceptions, and handle NULL-pointer results when getting column
            type declarations.

            Thanks to Bruno Daniel <[email protected]> for this patch.

            Changed API to expose optional results.

2009-03-09: Fixed potential build problem.

2009-03-01: Added support for user-defined aggregate functions.

            Thanks to Anil Madhavapeddy <[email protected]> for the initial
            version of the patch.

2009-02-21: Added new function:

              * busy_timeout

            Thanks to Paolo Donadeo <[email protected]> for the patch.

2009-01-05: Switched to generational global root registration of
            callbacks for better performance.

            Requires OCaml 3.11 or higher.

2008-12-02: Added function enable_load_extension if available.

            Thanks to Pietro Abate <[email protected]> for
            the patch.

2008-05-11: Added function column_count, used it internally in place of
            data_count, and improved documentation of associated
            functions.

            Thanks to James Cheney <[email protected]> for the patch.

2008-05-07: Renamed Data.to_string to Data.to_string_debug for converting
            fields to strings with their data constructor. Replaced the
            previous function with one that behaves more like users
            would expect. Thanks to Stefano Zacchiroli <[email protected]>
            for the suggestion.

2008-04-18: Improved backwards compatibility to older versions of SQLite.

2008-04-04: Fixed a build problem on Mac OS X.

2008-03-27: Fixed a build problem on FreeBSD.

            Thanks to Jaap Boender <[email protected]> for
            the patch.

2008-03-14: Synced with Jane Street tree.

2008-03-05: Added a patch to improve Windows support. Thanks to Alain
            Frisch <[email protected]> for the patch.

2007-09-04: Fixed a minor bug converting status codes.

2007-08-20: Fixed a GC-bug related to user-defined SQL-functions.

            Thanks to Enrico Tassi <[email protected]> for the
            test case to replicate this problem.

2007-06-17: Added support for user-defined scalar functions. Thanks to
            Enrico Tassi <[email protected]> for the patch.

            Switched to sqlite3_prepare_v2 internally to avoid the older,
            deprecated sqlite3_prepare-function. Thanks to Gabriel
            Kerneis <[email protected]> for the hint.

            Removed exec_sql-function, which was buggy in the last
            release anyway (thanks to Paul Stodghill <[email protected]>
            for pointing this out). Its interface hides too much
            important information from the user (e.g. BUSY-steps, etc.).
            It did not seem possible to design a function that made
            it as simple as exec_sql to run an SQL-statement without
            inviting the user to write buggy/incomplete code, or that
            wouldn't make the interface almost as complicated as
            writing the correct code that handles all cases by oneself.

2007-05-07: Further GC-bug fixes. There was a design bug in the library
            that was causing all these GC issues (C-structs allocated in the
            OCaml-heap). This seemed safe (and more efficient) to the initial
            author, but after extensive checking it became obvious that this
            does not work if C-structs reference each other, because the GC
            might move these memory regions. Allocations of C-structs and
            using indirections to access them seems safer with "malloc".

2007-05-04: Fixed GC-bugs, and improved thread interaction.

2007-04-23: callback_exn -> caml_callback_exn.

2007-03-30: Fixed a GC-bug.

2007-03-19: Fixed an installation problem on Cygwin.

            Thanks to James Cheney <[email protected]> for the hint.

2007-02-27: Small API-change: the callback for exec is now an optional
            argument.

            Added three more "exec"-functions, which do or do not take
            headers or handle NULL-values.

            Improved quality of C-code (removed warnings).

2007-02-23: Fixed a bug in the "db_close"-function. Improved documentation.

2007-02-19: Added check for out of memory after malloc.

2007-01-31: Fixed build problem on x86_64: added -fPIC flag to compilation
            of C-stubs.

2007-01-17: Complete rewrite by Markus Mottl <[email protected]>.

2005-04-xx: Initial coding (0.1) by
            Christian Szegedy <[email protected]>.