* Add generic platform support for Linux/m68k
* Include sem_t when determining values for FB_ALIGNMENT and FB_DOUBLE_ALIGN
On m68k, 'long long' is 16-bit aligned while 'sem_t' is 32-bit aligned
and we must therefore include 'sem_t' when determining the values for
FB_ALIGNMENT and FB_DOUBLE_ALIGN. Otherwise, the futex system call
will fail on these systems.
* Don't try to include headers for __cpuid on non-x86 targets
* Make sure that the version scripts include _IO_stdin_used on Linux
The GNU C library supports two ABIs for libio, one is the pre-2.1
ABI and the other is the current one. In order to determine which
ABI is to be used, the C library checks whether the _IO_stdin_used
symbol is exported by the executable. In case the symbol is present,
the new ABI is assumed, if the symbol is missing, the old ABI is
assumed. Thus, if an application is linked against a modern version
of glibc, it must export the _IO_stdin_used symbol as otherwise the
executable can crash or provoke other unexpected behavior on some
architectures like PowerPC or MIPS because the C library is using
the old ABI in this case.
Fixed the layering for WITH LOCK and (partially) ANY/ALL predicates.
Cleaned up the outdated code that never worked (mapping DISTINCT to an index, some VMS remainings).
Wiped out a lot of the pre-ODS11 optimizer logic. Some minor adjustments there.
Re-implemented the full outer join from scratch. This resolves CORE-2678 (full outer join cannot use available indices).
Resolved CORE-2796: DB_KEY is always zero for external tables.
Implemented the core part of the scrollable PSQL cursors. Implementation is still incomplete, but ready for testing.
Some other changes I don't recall at the moment ;-)
WARNING! The engine may be unstable. Please email me about any issues found.
- Plugins API.
- Feature CORE-2700 - UDR (User Defined Routines) Engine - C++ API supporting functions, triggers and stored procedures.
- Feature CORE-2470 - Support for alternate format of strings literals.
- Feature CORE-2310 - DDL triggers.
- Feature CORE-2312 - PSQL Packages.
- Feature CORE-1209 - CONTINUE statement.
- Feature CORE-1180 - DDL syntax to change (not) nullable state of columns.
- Feature CORE-2090 - Support OVER () clause with current aggregate functions.
- Fixed CORE-2699 - Common table expression context could be used with parameters.
- Introduce ODS 12.0.
- Work in progress in type-safe parser.
- Refactor some DDL commands (procedures and triggers) from DYN to DdlNodes.
- Refactor virtual tables to use a class hierarchy instead of namespaces. This is basic thing, not based on the changes done in Vulcan. Window functions is based on this work.
- Refactor COMMENT ON and DROP FUNCTION from DYN to DdlNodes. COMMENT ON do not use GDML anymore, it uses DSQL with PreparedStatement class.
- Refactor EXECUTE BLOCK to StmtNodes.
- Refactor the IUDF to SysFunctions. That eliminates RDB$GET_CONTEXT and RDB$SET_CONTEXT from RDB$FUNCTIONS.
