PGDOCS=.

PGDOCS=/usr/local/cdrom/docs

SRCDIR= ../src

TAR= tar

postgresql 6.3 multi-byte(MB) patch PL2 README Mar 10 1998

Tatsuo Ishii

t-ishii@sra.co.jp

http://www.sra.co.jp/people/t-ishii/PostgreSQL/

Introduction

MB patch is intended for allowing PostgreSQL to handle multi-byte

charachter sets such as EUC(Extende Unix Code), Unicode and Mule

internal code. With the MB patch you can use multi-byte character sets

in regexp and LIKE. The encoding system chosen is determined at the

compile time.

The patch also fixes some problems concerning with 8-bit single byte

character sets including ISO8859. (I would not say all of problems

have been fixed. I just confirmed that the regression test ran fine

and a few French characters could be used with the patch. Please let

me know if you find any problem while using 8-bit characters)

How to use

After applying the MB patch, create src/Makefile.custom with a line

including:

MB=encoding_system

where encoding_system is one of:

EUC_JPJapanese EUC

EUC_CNChinese EUC

EUC_KRKorean EUC

EUC_TWTaiwan EUC

UNICODEUnicode(UTF-8)

MULE_INTERNALMule internal

Example:

% cat Makefile.custom

MB=EUC_JP

If MB is not defined, nothing is changed except better supporting for

8-bit single byte character sets.

References

These are good sources to start learning various kind of encoding

systems.

ftp://ftp.ora.com/pub/examples/nutshell/ujip/doc/cjk.inf

Detailed explanations of EUC_JP, EUC_CN, EUC_KR, EUC_TW

appear in section 3.2.

Unicode: http://www.unicode.org/

The homepage of UNICODE.

RFC 2044

UTF-8 is defined here.

History

Mar 10, 1998 PL2 released

* add regression test for EUC_JP, EUC_CN and MULE_INTERNAL

* add an English document (this file)

* fix problems concerning 8-bit single byte characters

Mar 1, 1998 PL1 released

postgresql 6.3 multi-byte (MB) patch PL2 README 1998/3/10 $B:n@.(B

$B@P0fC#IW(B

t-ishii@sra.co.jp

http://www.sra.co.jp/people/t-ishii/PostgreSQL/

$B$O$8$a$K!'(B

$B$3$N%Q%C%A$O!"%U%j!<$J(B RDBMS(Relational Database Management System)$B$N(B

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5.$B%^%k%A%P%$%HJ8;z$N@55,I=8=8!:w$,;HMQ2DG=(B

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($B$?$@$7!"(B2,3,4 $B$K$D$$$F$O%Q%C%A$r$"$F$J$/$F$b2DG=$G$9!#(B)

postgresql-6.3 $B$NF~<jJ}K!!'(B

postgresql-6.3.tar.gz $B$O(B postgresql $B$NF|K\$G$N8x<0%_%i!<%5%$%H$G(B

$B$"$k(B ftp://ftp.jaist.ac.jp/pub/dbms/PostgreSQL/ $B$+$iF~<j$G$-$^$9!#(B

$B2?$i$+$NM}M3$G$3$3$+$iF~<j$G$-$J$$>l9g$O!"(B

ftp://ftp.sra.co.jp/pub/cmd/postgres/6.3/ $B$bMxMQ$G$-$^$9!#(B

$B$J$*!"(Bpostgresql $B$N%*%j%8%J%k(B ftp $B%5%$%H$O(B ftp://ftp.postgresql.org

$B$G$9!#(B

$B$3$N%Q%C%A$NF~<jJ}K!!'(B

ftp://ftp.sra.co.jp/pub/cmd/postgres/6.3/patches/6.3mbPL2.patch.gz

$B$rF~<j$7$F2<$5$$!#(B

$B%Q%C%A$N$"$F$+$?!'(B

$BF~<j$7$?%Q%C%A%U%!%$%k$rE83+$7$^$9!#(B

% gunzip 6.3mbPL2.patch.gz

postgresql-6.3 $B$N%=!<%9$rE83+$7$^$9!#(B

% gtar xfz postgresql-6.3.tar.gz

$B$9$k$H!"(Bpostgresql-6.3 $B$H$$$&%G%#%l%/%H%j$,$G$-$k$N$G!"$=$3$K(B

cd $B$7$^$9!#(B

% cd postgresql-6.3

$B%Q%C%A$rEv$F$^$9!#(B

% patch -p1 < 6.3mbPL2.patch

$B$H$7$F$"$F$F$/$@$5$$!#<!$K!"(Bsrc/Makefile.custom $B$H$$$&%U%!%$%k$r:n$j!"(B

MB=EUC_JP

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EUC_JP$BF|K\8l(B EUC

EUC_CNGB $B$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

UNICODEUTF-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

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$B%5%]!<%H$7$F$$$^$;$s!#(B

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$B$$>l9g$O(B UNICODE $B$b$7$/$O(B MULE_INTERNAL $B$H$J$k$G$7$g$&!#(B

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http://www.sra.co.jp/people/t-ishii/PostgreSQL/ $B$G$b4JC1$J%$%s%9%H!<(B

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1998/3/10 PL2 $B$r%j%j!<%9(B

* EUC_JP, EUC_CN, MULE_INTERNAL $B$N(B regression test $B$rDI2C(B

(EUC_CN $B$N%G!<%?$O(B he@sra.co.jp $B$5$sDs6!(B)

* regexp $B$K$*$$$F!"(Bisalpha $B$J$I$K(B unsigend char $B0J30$NCM$,(B

$BEO$i$J$$$h$&$K%,!<%I$r$+$1$k(B

* $B1Q8l$N%I%-%e%a%s%H$rDI2C(B

* MB $B$rDj5A$7$J$$>l9g$KH/@8$9$k%P%0$r=$@5(B

1998/3/1 PL1 $B$r%j%j!<%9(B

$B0J>e!#(B

CFLAGS+=-DPOSIX_MISTAKE

OBJS = regcomp.o regerror.o regexec.o regfree.o

OBJS += utils.o wstrcmp.o wstrncmp.o

CFLAGS += -DMB=$(MB)

all: SUBSYS.o