Use environment variable PGDATESTYLE on backend startup to initialize

 date/time formats and conventions.

diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index b48c7482b12e90086bd61314916118a2539ee806..42a6bd88546088bb7d11c9645080db1adc072e0c 100644 (file)
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *   $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.56 1997/12/11 17:36:42 momjian Exp $
+ *   $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.57 1997/12/16 15:57:00 thomas Exp $
  *
  * NOTES
  *   this is the "main" module of the postgres backend and
@@ -854,6 +854,7 @@ PostgresMain(int argc, char *argv[])
    Dlelem     *curr;
    int         status;
 
+   char       *DBDate = NULL;
    extern int  optind;
    extern char *optarg;
    extern short DebugLvl;
@@ -882,6 +883,10 @@ PostgresMain(int argc, char *argv[])
     *  parse command line arguments
     * ----------------
     */
+
+   /*
+    * Set default values.
+    */
    flagC = flagQ = flagE = flagEu = ShowStats = 0;
    ShowParserStats = ShowPlannerStats = ShowExecutorStats = 0;
 #ifdef LOCK_MGR_DEBUG
@@ -893,9 +898,33 @@ PostgresMain(int argc, char *argv[])
     * NULL means Unix-socket only
     */
    hostName = getenv("PGHOST");
+   DataDir = getenv("PGDATA");
+   /*
+    * Try to get initial values for date styles and formats.
+    * Does not do a complete job, but should be good enough for backend.
+    * Cannot call parse_date() since palloc/pfree memory is not set up yet.
+    */
+   DBDate = getenv("PGDATESTYLE");
+   if (DBDate != NULL)
+   {
+       if (strcasecmp(DBDate, "ISO") == 0)
+           DateStyle = USE_ISO_DATES;
+       else if (strcasecmp(DBDate, "SQL") == 0)
+           DateStyle = USE_SQL_DATES;
+       else if (strcasecmp(DBDate, "POSTGRES") == 0)
+           DateStyle = USE_POSTGRES_DATES;
+       else if (strcasecmp(DBDate, "GERMAN") == 0)
+       {
+           DateStyle = USE_GERMAN_DATES;
+           EuroDates = TRUE;
+       }
 
-   DataDir = getenv("PGDATA"); /* default */
-   multiplexedBackend = false; /* default */
+       if (strcasecmp(DBDate, "NONEURO") == 0)
+           EuroDates = FALSE;
+       else if (strcasecmp(DBDate, "EURO") == 0)
+           EuroDates = TRUE;
+   }
+   multiplexedBackend = false;
 
    while ((flag = getopt(argc, argv, "B:bCD:d:Eef:iK:Lm:MNo:P:pQS:st:x:F"))
           != EOF)
@@ -1343,7 +1372,7 @@ PostgresMain(int argc, char *argv[])
    if (IsUnderPostmaster == false)
    {
        puts("\nPOSTGRES backend interactive interface");
-       puts("$Revision: 1.56 $ $Date: 1997/12/11 17:36:42 $");
+       puts("$Revision: 1.57 $ $Date: 1997/12/16 15:57:00 $");
    }
 
    /* ----------------