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Commit625d4b3

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Let initdb detect the date order of the lc_time locale and initialize the
datestyle parameter of the new cluster accordingly.
1 parentcd8f3ec commit625d4b3

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3 files changed

+79
-5
lines changed

3 files changed

+79
-5
lines changed

‎doc/TODO‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -566,7 +566,7 @@ SQL Commands
566566
Clients
567567
=======
568568

569-
* Have initdb set the input DateStyle (MDY or DMY) based on locale?
569+
*-Have initdb set the input DateStyle (MDY or DMY) based on locale
570570
* Have pg_ctl look at PGHOST in case it is a socket directory?
571571
* Allow pg_ctl to work properly with configuration files located outside
572572
the PGDATA directory

‎doc/src/sgml/config.sgml‎

Lines changed: 6 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
<!--
2-
$PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.37 2005/11/17 22:14:50 tgl Exp $
2+
$PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.38 2005/12/09 15:51:13 petere Exp $
33
-->
44
<chapter Id="runtime-config">
55
<title>Server Configuration</title>
@@ -32,7 +32,7 @@ $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.37 2005/11/17 22:14:50 tgl Exp $
3232
<para>
3333
One way to set these parameters is to edit the file
3434
<filename>postgresql.conf</><indexterm><primary>postgresql.conf</></>,
35-
which is normally kept in the data directory. (<command>initdb</>
35+
which is normally kept in the data directory. (<application>initdb</>
3636
installs a default copy there.) An example of what this file might look
3737
like is:
3838
<programlisting>
@@ -3300,7 +3300,10 @@ SELECT * FROM parent WHERE key = 2400;
33003300
keywords <literal>US</>, <literal>NonEuro</>, and
33013301
<literal>NonEuropean</> are synonyms for <literal>MDY</>. See
33023302
<xref linkend="datatype-datetime"> for more information. The
3303-
default is <literal>ISO, MDY</>.
3303+
built-in default is <literal>ISO, MDY</>, but
3304+
<application>initdb</application> will initialize the
3305+
configuration file with a setting that corresponds to the
3306+
behavior of the chosen <varname>lc_time</varname> locale.
33043307
</para>
33053308
</listitem>
33063309
</varlistentry>

‎src/bin/initdb/initdb.c‎

Lines changed: 72 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -42,7 +42,7 @@
4242
* Portions Copyright (c) 1994, Regents of the University of California
4343
* Portions taken from FreeBSD.
4444
*
45-
* $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.100 2005/11/22 18:17:28 momjian Exp $
45+
* $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.101 2005/12/09 15:51:14 petere Exp $
4646
*
4747
*-------------------------------------------------------------------------
4848
*/
@@ -57,11 +57,13 @@
5757
#ifdefHAVE_LANGINFO_H
5858
#include<langinfo.h>
5959
#endif
60+
#include<time.h>
6061

6162
#include"libpq/pqsignal.h"
6263
#include"mb/pg_wchar.h"
6364
#include"getaddrinfo.h"
6465
#include"getopt_long.h"
66+
#include"miscadmin.h"
6567

6668
#ifndefHAVE_INT_OPTRESET
6769
intoptreset;
@@ -186,6 +188,7 @@ static void make_postgres(void);
186188
staticvoidtrapsig(intsignum);
187189
staticvoidcheck_ok(void);
188190
staticchar*escape_quotes(constchar*src);
191+
staticintlocale_date_order(constchar*locale);
189192
staticboolchklocale(constchar*locale);
190193
staticvoidsetlocales(void);
191194
staticvoidusage(constchar*progname);
@@ -1195,6 +1198,20 @@ setup_config(void)
11951198
snprintf(repltok,sizeof(repltok),"lc_time = '%s'",lc_time);
11961199
conflines=replace_token(conflines,"#lc_time = 'C'",repltok);
11971200

1201+
switch (locale_date_order(lc_time)) {
1202+
caseDATEORDER_YMD:
1203+
strcpy(repltok,"datestyle = 'iso, ymd'");
1204+
break;
1205+
caseDATEORDER_DMY:
1206+
strcpy(repltok,"datestyle = 'iso, dmy'");
1207+
break;
1208+
caseDATEORDER_MDY:
1209+
default:
1210+
strcpy(repltok,"datestyle = 'iso, mdy'");
1211+
break;
1212+
}
1213+
conflines=replace_token(conflines,"#datestyle = 'iso, mdy'",repltok);
1214+
11981215
snprintf(path,sizeof(path),"%s/postgresql.conf",pg_data);
11991216

12001217
writefile(path,conflines);
@@ -2052,6 +2069,60 @@ escape_quotes(const char *src)
20522069
returnresult;
20532070
}
20542071

2072+
/*
2073+
* Determine likely date order from locale
2074+
*/
2075+
staticint
2076+
locale_date_order(constchar*locale)
2077+
{
2078+
structtmtesttime;
2079+
charbuf[128];
2080+
char*posD;
2081+
char*posM;
2082+
char*posY;
2083+
char*save;
2084+
size_tres;
2085+
intresult;
2086+
2087+
result=DATEORDER_MDY;/* default */
2088+
2089+
save=setlocale(LC_TIME,NULL);
2090+
if (!save)
2091+
returnresult;
2092+
save=xstrdup(save);
2093+
2094+
setlocale(LC_TIME,locale);
2095+
2096+
memset(&testtime,0,sizeof(testtime));
2097+
testtime.tm_mday=22;
2098+
testtime.tm_mon=10;/* November, should come out as "11" */
2099+
testtime.tm_year=133;/* 2033 */
2100+
2101+
res=strftime(buf,sizeof(buf),"%x",&testtime);
2102+
2103+
setlocale(LC_TIME,save);
2104+
free(save);
2105+
2106+
if (res==0)
2107+
returnresult;
2108+
2109+
posM=strstr(buf,"11");
2110+
posD=strstr(buf,"22");
2111+
posY=strstr(buf,"33");
2112+
2113+
if (!posM|| !posD|| !posY)
2114+
returnresult;
2115+
2116+
if (posY<posM&&posM<posD)
2117+
result=DATEORDER_YMD;
2118+
elseif (posD<posM)
2119+
result=DATEORDER_DMY;
2120+
else
2121+
result=DATEORDER_MDY;
2122+
2123+
returnresult;
2124+
}
2125+
20552126
/*
20562127
* check if given string is a valid locale specifier
20572128
*/

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