mirror of https://github.com/postgres/postgres
9c9936587c
only if at least N other backends currently have open transactions. This is not a great deal of intelligence about whether a delay might be profitable ... but it beats no intelligence at all. Note that the default COMMIT_DELAY is still zero --- this new code does nothing unless that setting is changed. Also, mark ENABLEFSYNC as a system-wide setting. It's no longer safe to allow that to be set per-backend, since we may be relying on some other backend's fsync to have synced the WAL log. |
||
|---|---|---|
| .. | ||
| TODO.detail | ||
| src | ||
| FAQ | ||
| FAQ_AIX | ||
| FAQ_DEV | ||
| FAQ_HPUX | ||
| FAQ_MSWIN | ||
| FAQ_QNX4 | ||
| FAQ_SCO | ||
| FAQ_Solaris | ||
| FAQ_german | ||
| KNOWN_BUGS | ||
| MISSING_FEATURES | ||
| Makefile | ||
| README.mb.big5 | ||
| README.mb.jp | ||
| TODO | ||
| bug.template | ||
| internals.ps | ||
README.mb.jp
PostgreSQL 7.1 multi-byte (MB) support README 2001/2/15 $B:n@.(B $B@P0fC#IW(B ishii@postgresql.org http://www.sra.co.jp/people/t-ishii/PostgreSQL/ $B"#$O$8$a$K(B PostgreSQL $B$K$*$1$k%^%k%A%P%$%H%5%]!<%H$O0J2<$N$h$&$JFCD'$r;}$C$F$$$^$9!%(B 1. $B%^%k%A%P%$%HJ8;z$H$7$F!$F|K\8l!$Cf9q8l$J$I$N3F9q$N(B EUC$B!$(BUnicode$B!$(B mule internal code, ISO-8859-* $B$,%G!<%?%Y!<%9:n@.;~$KA*Br2DG=!%(B $B%G!<%?%Y!<%9$K$O$3$N%3!<%I$N$^$^3JG<$5$l$^$9!%(B 2. $B%F!<%V%kL>$K%^%k%A%P%$%HJ8;z$,;HMQ2DG=(B($B$?$@$7!$(BOS $B$,%^%k%A%P%$%H(B $B$N%U%!%$%kL>$r5v$7$F$$$k$3$H$,I,MW(B) 3. $B%+%i%`L>$K%^%k%A%P%$%HJ8;z$,;HMQ2DG=(B 4. $B%G!<%?$=$N$b$N$K$b%^%k%A%P%$%HJ8;z$,;HMQ2DG=(B 5. $B%^%k%A%P%$%HJ8;z$N@55,I=8=8!:w$,;HMQ2DG=(B 6. $B%^%k%A%P%$%HJ8;z$N(B LIKE $B8!:w$,;HMQ2DG=(B 7. character_length(), position(), substring() $B$G$N%^%k%A%P%$%H(B $B%5%]!<%H(B 8. $B%U%m%s%H%(%s%IB&$N%(%s%3!<%G%#%s%0$,%P%C%/%(%s%IB&$H0[$k>l9g$K!$(B $B<+F0E*$K%3!<%IJQ49$r9T$J$$$^$9!%(B $B"#%$%s%9%H!<%k(B $B%G%U%)%k%H$N%3%s%U%#%.%e%l!<%7%g%s$G$O(B PostgreSQL $B$O%^%k%A%P%$%H$r(B $B%5%]!<%H$7$F$$$^$;$s!%%^%k%A%P%$%H%5%]!<%H$rM-8z$K$9$kJ}K!$r@bL@$7$^$9!%(B $B$?$H$($PF|K\8l(B EUC $B$r<g$KMxMQ$9$k>l9g$O!$(Bconfigure $B5/F0;~$K0J2<$N$h(B $B$&$K;XDj$7$^$9!%(B % ./configure --enable-multibyte=EUC_JP UNICODE$B$HB>$N%(%s%3!<%G%#%s%0$H$NAj8_JQ495!G=$rMxMQ$9$k>l9g$O!$99$K(B --enable-unicode-conversion $B%*%W%7%g%s$rDI2C$7$F$/$@$5$$(B(7.1$B0J9_$GMx(B $BMQ2DG=(B)$B!%(B $B%(%s%3!<%G%#%s%0$H$7$F$O(B EUC_JP $B$NB>!$0J2<$,;XDj$G$-$^$9!%(B SQL_ASCII ASCII EUC_JP $BF|K\8l(B EUC EUC_CN GB $B$r%Y!<%9$K$7$?CfJ8(BEUC$B!%(Bcode set 2 $B$O(B SS2+2$B%P%$%H%3!<%I(B = 3$B%P%$%HI=8=$G$9!%(B EUC_KR $B4Z9q8l(B EUC$B!%(B EUC_TW $BBfOQ$N(B EUC$B!%(Bcode set 2 $B$O(B SS2+$BLLHV9f(B+2$B%P%$%H%3!<%I(B = 4$B%P%$%HI=8=$G$9!%(B UNICODE UTF-8$B!%$?$@$7%5%]!<%H$9$k$N$O(B UCS-2 $B$NHO0O!$(B $B$9$J$o$A(B 0xffff $B$^$G$G$9!%(B MULE_INTERNAL mule $B$NFbIt%3!<%I!%$?$@$7!$(BType N $B$NITDjD9J8;z$O(B $B%5%]!<%H$7$F$$$^$;$s!%(B LATIN* ISO8859 Latin $B%7%j!<%:!%(B* $B$O(B 1 $B$+$i(B 5 $B$^$G;XDj(B $B$G$-$^$9!%(B $B%-%j%kJ8;z(B KOI8(KOI8-R), WIN(CP1251), ALT(CP866)$B$r%5%]!<%H(B $B$7$F$$$^$9!%$b$A$m$s(B ISO 8859-5 $B$b;HMQ2DG=$G$9!%(B $B$3$N>l9g!$(B"LATIN5" $B$H$7$F;XDj$7$F2<$5$$!%(B $BA*Br$NL\0B$H$7$F$O!$1Q8l$HF|K\8l$7$+;H$o$J$$>l9g$O(B EUC_JP($BF1MM$K!$Cf(B $B9q8l$7$+;H$o$J$$>l9g$O(B EUC_CN... $B$J$I$H$J$j$^$9(B)$B!$$=$NB>$N8@8l$b;H$$$?(B $B$$>l9g$O(B UNICODE $B$b$7$/$O(B MULE_INTERNAL $B$H$J$k$G$7$g$&!%(B $B%(%s%3!<%G%#%s%0$r>JN,$7$?>l9g!$%G%U%)%k%HCM$H$7$F(B SQL_ASCII $B$,:NMQ(B $B$5$l$^$9!%(B $B$J$*!$(Bconfigure $B$GA*Br$7$?%(%s%3!<%G%#%s%0$O!$$"$/$^$G(B initdb $B$N$?$a$N(B $B%G%U%)%k%HCMDxEY$N0UL#$7$+$"$j$^$;$s(B(initdb $B$G$O0z?t$G%(%s%3!<%G%#%s%0$,(B $B;XDj$G$-$^$9(B)$B!%$7$?$,$C$F!$0[$J$k%(%s%3!<%G%#%s%0$r;HMQ$9$k$?$a$K(B $B$o$6$o$6(B PostgreSQL $B$r%j%3%s%Q%$%k$9$kI,MW$"$j$^$;$s!%(B initdb $B$O(B shell script $B$J$N$G!$%G%U%)%k%H$N%(%s%3!<%G%#%s%0$O(B script $B$r(B 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$B"#(Binitdb/createdb/create database $B$K$*$1$k%(%s%3!<%G%#%s%0$N;XDj$K$D$$$F(B initdb $B$G$O0J2<$N%*%W%7%g%s$G%(%s%3!<%G%#%s%0$,;XDj$G$-$^$9!%(B -E $B%(%s%3!<%G%#%s%0(B --encoding=$B%(%s%3!<%G%#%s%0(B $B$3$3$G;XDj$7$?%(%s%3!<%G%#%s%0$O!$0J8e(B createdb/create database $B$G%((B $B%s%3!<%G%#%s%0$r>JN,$7$?>l9g$K@_Dj$5$l$k%(%s%3!<%G%#%s%0$K$J$j$^$9!%(B -E $B$^$?$O(B --encoding $B%*%W%7%g%s$r>JN,$7$?>l9g$O!$(Bconfigure $B$G;XDj$7(B $B$?%(%s%3!<%G%#%s%0$,:NMQ$5$l$^$9!%(B createdb $B$G$O0J2<$N%*%W%7%g%s$G%(%s%3!<%G%#%s%0$,;XDj$G$-$^$9!%(B -E $B%(%s%3!<%G%#%s%0(B --encoding=$B%(%s%3!<%G%#%s%0(B create database $B$G$O0J2<$N%*%W%7%g%s$G%(%s%3!<%G%#%s%0$,;XDj$G$-$^$9!%(B CREATE DATABASE dbanme WITH ENCODING = '$B%(%s%3!<%G%#%s%0(B'; LOCATION $B$rF1;~$K;XDj$9$k>l9g$O0J2<$N$h$&$K$J$j$^$9!%(B CREATE DATABASE dbanme WITH LOCATION = 'path' ENCODING = '$B%(%s%3!<%G%#%s%0(B'; createdb/create database $B$G$O!$%(%s%3!<%G%#%s%0;XDj$r>JN,$7$?>l9g$O!$(Binitdb $B$G;XDj$7$?%(%s%3!<%G%#%s%0$,:NMQ$5$l$^$9!%$3$l$O!$(Binitdb $B$,:n@.$9$k(B $B%F%s%W%l!<%H%G!<%?%Y!<%9(B(template1)$B$N(B encoding $B%"%H%j%S%e!<%H$r7Q>5(B $B$9$k$+$i$G$9!%(B $B%G!<%?%Y!<%9$N%(%s%3!<%G%#%s%0$O!$(Bpsql -l$B!$(Bpsql $B$N(B \l $B$G;2>H$G$-$^$9!%(B $ psql -l List of databases Database | Owner | Encoding ---------------+---------+--------------- euc_cn | t-ishii | EUC_CN euc_jp | t-ishii | EUC_JP euc_kr | t-ishii | EUC_KR euc_tw | t-ishii | EUC_TW mule_internal | t-ishii | MULE_INTERNAL regression | t-ishii | SQL_ASCII template1 | t-ishii | EUC_JP test | t-ishii | EUC_JP unicode | t-ishii | UNICODE (9 rows) $B"#%U%m%s%H%(%s%I$H%P%C%/%(%s%I$N<+F0%(%s%3!<%G%#%s%0JQ49$K$D$$$F(B $B%P%C%/%(%s%I(B($B%G!<%?%Y!<%9(B)$B$H(B psql $B$J$I$N%U%m%s%H%(%s%I$N%(%s%3!<%G%#(B $B%s%0$O0lCW$7$F$$$k$N$,86B'$G$9$,!$$$$/$D$+$N%(%s%3!<%G%#%s%0$K$D$$$F(B $B$O%P%C%/%(%s%I$H%U%m%s%H%(%s%I$N4V$G0[$J$k$b$N$r;HMQ$9$k$3$H$,$G$-$^(B $B$9!%$3$N>l9g!$<+F0E*$K%P%C%/%(%s%I$G%(%s%3!<%G%#%s%0JQ49$,9T$o$l$^$9!%(B $B%P%C%/%(%s%I$N%(%s%3!<%G%#%s%0(B $B5vMF$5$l$k%U%m%s%H%(%s%I$N(B $B%(%s%3!<%G%#%s%0(B ---------------------------------------------------------------- EUC_JP EUC_JP, SJIS, UNICODE EUC_TW EUC_TW, BIG5, UNICODE LATIN1,3,4 LATIN1,3,4, UNICODE LATIN2 LATIN2, WIN1250, UNICODE LATIN5 LATIN5, WIN, ALT, UNICODE MULE_INTERNAL EUC_JP, SJIS, EUC_KR, EUC_CN, EUC_TW, BIG5, LATIN1$B$+$i(B5, WIN, ALT, WIN1250 UNICODE EUC_JP, SJIS, EUC_KR, EUC_CN, EUC_TW, BIG5, LATIN1$B$+$i(B5, WIN, ALT, WIN1250 ---------------------------------------------------------------- * UNICODE$B$r<+F0%(%s%3!<%G%#%s%0JQ49$NBP>]$K$9$k>l9g$O!$(B --enable-unicode-conversion $B%*%W%7%g%s(Bconfigure$B;~$KDI2C$7$F$/$@$5$$!%(B $B%P%C%/%(%s%I$H%U%m%s%H%(%s%I$N%(%s%3!<%G%#%s%0$,0[$J$k>l9g!$$=$N$3$H(B $B$r%P%C%/%(%s%I$KEA$($kI,MW$,$"$j$^$9!%$=$N$?$a$NJ}K!$,$$$/$D$+$"$j$^(B $B$9!%(B o psql $B$N(B \encoding $B%3%^%s%I$r;H$&J}K!(B psql$B$G$O!$(B\encoding$B%3%^%s%I$r;H$C$FF0E*$K%U%m%s%H%(%s%IB&$NJ8;z%3!<(B $B%I$r@ZBX$($k$3$H$,$G$-$^$9!%Nc(B: \encoding SJIS o libpq $B$N4X?t(B PQsetClientEncoding $B$r;H$&J}K!(B 7.0 $B$+$i?7$7$$(B libpq $B4X?t(B PQsetClientEncoding $B$,DI2C$5$l$F$$$^$9!%(B PQsetClientEncoding(PGconn *conn, const char *encoding) $B$3$N4X?t$r;H$($P!$%3%M%/%7%g%sKh$K%(%s%3!<%G%#%s%0$r@ZBX$($k$3$H$,$G(B $B$-$^$9!%8=:_$N%(%s%3!<%G%#%s%0$NLd$$9g$o$;$O(B int PQclientEncoding(const PGconn *conn) $B$G$9!%(B o $B4D6-JQ?t(B PGCLIENTENCODING $B$r;H$&J}K!(B $B>e5-J}K!$GBP1~$G$-$J$$>l9g!$$"$k$$$O%U%m%s%H%(%s%I$G;H$o$l$k%(%s%3!<(B $B%G%#%s%0$,$"$i$+$8$aJ,$+$C$F$$$k>l9g$O4D6-JQ?t(B PGCLIENTENCODING $B$r;H(B $B$&$N$,JXMx$G$9!%$3$NJ}K!$O99$KBg$-$/(B2$B$D$KJ,$+$l$^$9!%(B (1) postmaster $B5/F0;~$K4D6-JQ?t$r@_Dj$9$kJ}K!(B $B$9$Y$F$N%/%i%$%"%s%H(B($B%U%m%s%H%(%s%I(B)$B$,F1$8%(%s%3!<%G%#%s%0$r;H$&$N$,(B $BJ,$+$C$F$$$k>l9g!$(Bpostmaster $B5/F0;~$K4D6-JQ?t(B PGCLIENTENCODING $B$r@_(B 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EUC_TW CNS11643.TXT Big5 BIG5.TXT ============================================================ $B<U<-!'(B o $BFA2H(B@$B;06(1?M"%5!<%S%9$5$s$+$i!$(BCP932.TXT$B$h$j@8@.$7$?(BSJIS$BMQ$NJQ49%F!<(B $B%V%k$rDs6!$7$F$$$?$@$-$^$7$?!%$3$l$K$h$j!$(BIBM $B3HD%J8;zNN0h(B (SJIS 115$B!A(B120 $B6h(B), NEC $BA*Dj(B IBM $B3HD%J8;zNN0h(B (SJIS 89$B!A(B92 $B6h(B)$B$KBP1~$9$k(B $B$3$H$,$G$-$k$h$&$K$J$j$^$7$?!%(B $B;29M(B1$B!'(B Pavel Behal$B;a$K$h$jDs6!$5$l$?(BWIN1250$B%5%]!<%H$G$9$,!$(BWindows$B4D6-$G$N(B $BMxMQ$N;EJ}$K$D$$$F;29M$K$J$k%I%-%e%a%s%H$,IUB0$7$F$$$k$N$G!$$3$3$KE:(B $BIU$7$F$*$-$^$9!%(B ------------------------------------------------------------------- Version: 0.91 for PgSQL 6.5 Author: Pavel Behal Revised by: Tatsuo Ishii Email: behal@opf.slu.cz Licence: The Same as PostgreSQL Sorry for my Eglish and C code, I'm not native :-) !!!!!!!!!!!!!!!!!!!!!!!!! NO WARRANTY !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Instalation: ------------ 1) Change three affected files in source directories (I don't have time to create proper patch diffs, I don't know how) [PostgreSQL 6.5.1$B$G$O$3$N%9%F%C%W$OI,MW$"$j$^$;$s!%(B-- $B@P0f(B] 2) Compile with enabled locale and multibyte set to LATIN2 3) Setup properly your instalation, do not forget to create locale variables in your profile (environment). Ex. (may not be exactly true): LC_ALL=cs_CZ.ISO8859-2 LC_COLLATE=cs_CZ.ISO8859-2 LC_CTYPE=cs_CZ.ISO8859-2 LC_MONETARY=cs_CZ.ISO8859-2 LC_NUMERIC=cs_CZ.ISO8859-2 LC_TIME=cs_CZ.ISO8859-2 4) You have to start the postmaster with locales set! 5) Try it with Czech language, it have to sort 5) Install ODBC driver for PgSQL into your M$ Windows 6) Setup properly your data source. Include this line in your ODBC configuration dialog in field "Connect Settings:" : SET CLIENT_ENCODING = 'WIN1250'; 7) Now try it again, but in Windows with ODBC. Description: ------------ - Depends on proper system locales, tested with RH6.0 and Slackware 3.6, with cs_CZ.iso8859-2 loacle - Never try to set-up server multibyte database encoding to WIN1250, always use LATIN2 instead. There is not WIN1250 locale in Unix - WIN1250 encoding is useable only for M$W ODBC clients. The characters are on thy fly re-coded, to be displayed and stored back properly Important: ---------- - it reorders your sort order depending on your LC_... setting, so don't be confused with regression tests, they don't use locale - "ch" is corectly sorted only in some newer locales (Ex. RH6.0) - you have to insert money as '162,50' (with comma in aphostrophes!) - not tested properly ------------------------------------------------------------------- $B;29M(B2$B!'(BSJIS$B%f!<%6Dj5AJ8;z(B (UDC) $B$r$I$&07$&$+$H8@$&$3$H$K$D$$$FCf>r$5$s(B (nak@email.com)$B$+$i$$$?$@$$$?LdBjDs5/$H2r@b$G$9!%(B -------------------------- $B0zMQ3+;O(B ---------------------------------- --- 1. 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