Updates for next release from Bernd Tegge.
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Thomas G. Lockhart
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doc/FAQ_QNX4
79
doc/FAQ_QNX4
@ -1,11 +1,11 @@
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PostgresSQL on QNX 4
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--------------------
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last updated: $Date: 2001/05/24 15:53:31 $
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last updated: $Date: 2001/12/21 06:00:15 $
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current maintainer: Bernd Tegge (tegge@repas-aeg.de)
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original author: Andreas Kardos (kardos@repas-aeg.de)
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This port is an important step because PostgreSQL is now the only free
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This port is an important step because PostgreSQL is still the only free
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relational database with full SQL and ODBC support available for QNX 4.
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The only commercial databases available are Empress RDBMS and Velocis
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Database Server (not supported for Digital Unix).
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@ -22,9 +22,12 @@ QNX 4 does not offer native support of shared libraries. Therefore the related
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functionality cannot be used. Shared library support could probably be
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implemented in future.
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QNX 4 does not support UNIX domain sockets. Clients must use TCP/IP sockets.
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Therefore postmaster must always be started with the -i option. Furthermore
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it would be useful to set the PGHOST variable.
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QNX 4 does not support UNIX domain sockets. Clients must use TCP/IP
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sockets. Therefore you either have to set "tcpip_socket = true" in
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your postgresql.conf or to start postmaster with the -i option.
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Furthermore it's advisable to set to set the PGHOST or SOCK environment
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variable for postmaster in an environment using native QNX networking.
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Otherwise the postmaster might not use the IP-Address you think it does :-)
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Prerequisites:
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--------------
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@ -128,14 +131,8 @@ the object file into the SUBSYS.o but link it directly. For further information
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see backend/Makefile and backend/bootstrap/Makefile.
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libpgsql.a currently cannot be generated because of the same problem. But this
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doesn't matter since shared libraries are not supported.
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Currently yacc fails on backend/parser/gram.y and
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interfaces/ecpg/preproc/preproc.y due to exceeded maximum table size. You can
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generate the gram.h, parse.h, preproc.h and preproc.c files on another platform
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and use them. This is only a problem when you use the current source tree since
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parse.h, gram.c, preproc.h and preproc.c are included in official
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distributions. In order to avoid this, install the bison binary mentioned
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above.
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(The Makefiles are already changed to ignore this, you don't have to
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do anything)
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Regression tests:
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-----------------
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@ -150,32 +147,27 @@ Some slight deviation in the last digit and "0" instead of "-0".
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Can be ignored.
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timestamp, tinterval, abstime, horology:
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Differences for years outside the normal Unix range, e.g. 1968
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instead of 2105
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Differences for years before the UNIX epoch. The QNX library probably treats
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time_t as unsigned -> dates before 1970 get moved into the far future.
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Can be ignored.
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rules:
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"ERROR: Bad money external representation ..."
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if a value of type money is inserted in string representation e.g. as in
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"insert into rtest_emp values ('wiech', '5000.00');"
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Subject of further investigation.
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create_function_1, create_function_2, create_type, create_operator,
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create_view, select_views, triggers, misc, plpgsql:
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Error messages due to the lack of shared library support.
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numeric, numeric_big, sanity_check:
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"ERROR: Cannot create unique index. Table contains non-unique values"
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This error occurs for indices of tables num_exp_add, num_exp_sub,
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num_exp_div and num_exp_mul only.
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Subject of further investigation. Probably because of the missing indices
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these numeric tests take a long time.
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The diffence in sanity_check.out is a consequence of this problem only.
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rules, select_views:
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looks like it fails because it depends on tables created by previously
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failing tests.
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alter_table:
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An expected failure message contains one blank more than expected.
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Possibly a faulty output file.
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int8, subselect, union
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fails for Watcom version because of lacking int8 support.
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The current state of this port should be sufficient for lot of applications.
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The Watcom version failed additional tests because of the lack of int8
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support.
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Have fun!
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@ -184,7 +176,7 @@ Andreas Kardos
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Bernd Tegge
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tegge@repas-aeg.de
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2001-03-01
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2001-12-10
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---------------------------------------------------------------------------
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@ -211,3 +203,28 @@ tegge@repas-aeg.de
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#if defined(__sgi) && !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)
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#pragma reset woff 1174
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Patch required to build with gcc:
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*** /usr/src/postgresql-7.2b3/src/backend/port/qnx4/sem.h Thu Nov 8 21:37:52 2001
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--- src/backend/port/qnx4/sem.h Mon Dec 10 13:22:18 2001
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***************
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*** 55,60 ****
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--- 55,71 ----
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ushort_t sem_num; /* semaphore # */
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short sem_op; /* semaphore operation */
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short sem_flg; /* operation flags */
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+ };
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+
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+ /*
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+ * command union for semctl.
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+ */
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+
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+ union semun {
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+ int val; /* value for SETVAL */
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+ struct semid_ds *buf; /* buffer for IPC_STAT, IPC_SET */
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+ unsigned short int *array; /* array for GETALL, SETALL */
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+ struct seminfo *__buf; /* buffer for IPC_INFO */
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};
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extern int semctl(int semid, int semnum, int cmd, /* ... */ union semun arg);
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