[Mono-bugs] [Bug 77272][Wis] New - SqliteDataReader column names
should be case-insensitive
bugzilla-daemon at bugzilla.ximian.com
bugzilla-daemon at bugzilla.ximian.com
Sun Jan 15 21:51:10 EST 2006
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Changed by jhill at arcfocus.com.
http://bugzilla.ximian.com/show_bug.cgi?id=77272
--- shadow/77272 2006-01-15 21:51:10.000000000 -0500
+++ shadow/77272.tmp.4456 2006-01-15 21:51:10.000000000 -0500
@@ -0,0 +1,86 @@
+Bug#: 77272
+Product: Mono: Class Libraries
+Version: 1.1
+OS: All
+OS Details:
+Status: NEW
+Resolution:
+Severity:
+Priority: Wishlist
+Component: Sys.Data.SqlClient
+AssignedTo: tsenganal at novell.com
+ReportedBy: jhill at arcfocus.com
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL:
+Cc:
+Summary: SqliteDataReader column names should be case-insensitive
+
+Description of Problem:
+Looking up a value in a SqliteDataReader using the correct column name
+should return a value, regardless of whether the column name specified has
+the same case as the column definition. Most DataReaders for other
+databases will do a case-sensitive search for the field, and if no field is
+found, they will do a case-insensitive search.
+
+Steps to reproduce the problem:
+1. Create and populate a sqlite database:
+CREATE TABLE `FirstTable` (
+ `FirstColumn` TEXT NULL default ''
+);
+
+INSERT INTO FirstTable VALUES ('FirstTable FirstRow');
+
+2. Create a C# program to access this database:
+using System;
+using System.Data;
+using Mono.Data.SqliteClient;
+
+namespace AppX
+{
+ class X
+ {
+ static void Main(string[] args)
+ {
+ SqliteCommand cmd = new SqliteCommand();
+ SqliteConnection connection = new
+SqliteConnection(@"version=3,URI=file:C:\Temp\x.db");
+ connection.Open();
+ cmd.Connection = connection;
+ cmd.CommandText = "SELECT * FROM FirstTable;";
+ cmd.CommandType = CommandType.Text;
+
+ SqliteDataReader dr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
+
+ while(dr.Read()) {
+ Console.WriteLine(dr["firstcolumn"].ToString());
+ }
+ }
+ }
+}
+
+3. Build x.cs:
+mcs x.cs -r:Mono.Data.SqliteClient -r:System.Data
+
+4. Execute x.exe
+mono x.exe
+
+Actual Results:
+Unhandled Exception: System.NullReferenceException: Object reference not set to
+an instance of an object.
+ at Mono.Data.SqliteClient.SqliteResultSet.get_Item(String name)
+ at Mono.Data.SqliteClient.SqliteDataReader.get_Item(String name)
+ at AppX.X.Main(String[] args)
+
+Expected Results:
+FirstTable FirstRow
+
+How often does this happen?
+Always
+
+Additional Information:
+Changing:
+ Console.WriteLine(dr["firstcolumn"].ToString());
+To:
+ Console.WriteLine(dr["FirstColumn"].ToString());
+will execute correctly.
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