From 3f59cc08316f9aea92823a021c6232b298e00d03 Mon Sep 17 00:00:00 2001
From: Peter Mount
Date: Mon, 17 May 1999 22:43:30 +0000
Subject: Minor bug fixes. Replaced DateStyle support with ISO.

---
 src/interfaces/jdbc/postgresql/Connection.java | 91 ++++++++------------------
 1 file changed, 28 insertions(+), 63 deletions(-)

(limited to 'src/interfaces/jdbc/postgresql/Connection.java')

diff --git a/src/interfaces/jdbc/postgresql/Connection.java b/src/interfaces/jdbc/postgresql/Connection.java
index 4ec6fdb177c..fdbc936a666 100644
--- a/src/interfaces/jdbc/postgresql/Connection.java
+++ b/src/interfaces/jdbc/postgresql/Connection.java
@@ -10,7 +10,7 @@ import postgresql.largeobject.*;
 import postgresql.util.*;
 
 /**
- * $Id: Connection.java,v 1.15 1999/04/11 18:03:00 peter Exp $
+ * $Id: Connection.java,v 1.16 1999/05/17 22:43:23 peter Exp $
  *
  * This abstract class is used by postgresql.Driver to open either the JDBC1 or
  * JDBC2 versions of the Connection class.
@@ -67,38 +67,6 @@ public abstract class Connection
   // be across all connections, which could be to different backends.
   public Hashtable fieldCache = new Hashtable();
   
-  /**
-   * This is the current date style of the backend
-   */
-  public int currentDateStyle;
-  
-  /**
-   * This defines the formats for dates, according to the various date styles.
-   *
-   * <p>There are two strings for each entry. The first is the string to search
-   * for in the datestyle message, and the second the format to use.
-   *
-   * <p>To add a new date style, work out the format. Then with psql running
-   * in the date style you wish to add, type: show datestyle;
-   *
-   * <p>eg:
-   * <br><pre>
-   * => show datestyle;
-   * NOTICE:  Datestyle is SQL with European conventions
-   *                       ^^^^^^^^^^^^^^^^^
-   * </pre>The marked part of the string is the first string below. The second
-   * is your format. If a style (like ISO) ignores the US/European variants,
-   * then you can ignore the "with" part of the string.
-   */
-  protected static final String dateStyles[] = {
-    "Postgres with European",	"dd-MM-yyyy",
-    "Postgres with US",		"MM-dd-yyyy",
-    "ISO",			"yyyy-MM-dd",
-    "SQL with European",	"dd/MM/yyyy",
-    "SQL with US",		"MM/dd/yyyy",
-    "German",			"dd.MM.yyyy"
-  };
-  
   // Now handle notices as warnings, so things like "show" now work
   public SQLWarning firstWarning = null;
   
@@ -242,22 +210,24 @@ public abstract class Connection
 	  throw new SQLException("Connection failed: " + e.toString());
 	}
 	
-	// Find out the date style by issuing the SQL: show datestyle
-	// This actually issues a warning, and our own warning handling
-	// code handles this itself.
-	//
-	// Also, this query replaced the NULL query issued to test the
-	// connection.
-	//
+      // Originally we issued a SHOW DATESTYLE statement to find the databases default
+      // datestyle. However, this caused some problems with timestamps, so in 6.5, we
+      // went the way of ODBC, and set the connection to ISO.
+      //
+      // This may cause some clients to break when they assume anything other than ISO,
+      // but then - they should be using the proper methods ;-)
+      //
+      //
       firstWarning = null;
-	ExecSQL("show datestyle");
-	
-	// Initialise object handling
-	initObjectTypes();
-	
-	// Mark the connection as ok, and cleanup
+      
+      ExecSQL("set datestyle to 'ISO'");
+      
+      // Initialise object handling
+      initObjectTypes();
+      
+      // Mark the connection as ok, and cleanup
       firstWarning = null;
-	PG_STATUS = CONNECTION_OK;
+      PG_STATUS = CONNECTION_OK;
     }
     
     // These methods used to be in the main Connection implementation. As they
@@ -280,23 +250,18 @@ public abstract class Connection
 	
 	// Now check for some specific messages
 	
+	// This is obsolete in 6.5, but I've left it in here so if we need to use this
+	// technique again, we'll know where to place it.
+	//
 	// This is generated by the SQL "show datestyle"
-	if(msg.startsWith("NOTICE:") && msg.indexOf("DateStyle")>0) {
-	    // 13 is the length off "DateStyle is "
-	    msg = msg.substring(msg.indexOf("DateStyle is ")+13);
-	    
-	    for(int i=0;i<dateStyles.length;i+=2)
-		if(msg.startsWith(dateStyles[i]))
-		    currentDateStyle=i+1; // this is the index of the format
-	}
-    }
-    
-    /**
-     * @return the date format for the current date style of the backend
-     */
-    public String getDateStyle()
-    {
-	return dateStyles[currentDateStyle];
+	//if(msg.startsWith("NOTICE:") && msg.indexOf("DateStyle")>0) {
+	//// 13 is the length off "DateStyle is "
+	//msg = msg.substring(msg.indexOf("DateStyle is ")+13);
+	//  
+	//for(int i=0;i<dateStyles.length;i+=2)
+	//if(msg.startsWith(dateStyles[i]))
+	//currentDateStyle=i+1; // this is the index of the format
+	//}
     }
     
     /**
-- 
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