DRH, if we don't get the type information returned for Views, what is the point of getting it back for SELECTs? Views are completely useless to SQLite users who rely on the type information to interpret the result sets. Is this something you can fix soon?
Miguel Angel Latorre Díaz wrote:
Read the documentation: "The first parameter is a prepared SQL statement. If this statement is a SELECT statement, the Nth column of the returned result set of the SELECT is a table column then the declared type of the table column is returned. If the Nth column of the result set is not at table column, then a NULL pointer is returned."
----- Original Message ----- From: "EzTools Support" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, September 20, 2004 11:43 PM
Subject: [sqlite] Re: *** Please help ***
Can someone please please answer the question, does sqlite3_column_decltype NOT return the column type for Views? I don't see how this wouldn't considered as a major bug.
EzTools Support wrote:
I found out why Views were returning all NULLs. I have made a modified version of sqlite3_exec. Mine checks for NULL returned from sqlite3_column_decltype, for which Sqlite3 now returns NULL. Am I right that this is so? My COM wrapper depends on having the column data types returned for Views. Can you please make it work again, as this is vital.
thanks -brett
EzTools Support wrote:
Hello. Can someone please help with this issue. It may turn out to be a bug in Sqlite 3.
I have the following fairly basic SQL View that works fine with Sqlite 2.x:
CREATE VIEW Invoices AS SELECT Customers.CustomerID, Customers.CompanyName,Orders.OrderID, OrderDetails.ProductID, OrderDetails.Quantity FROM Customers INNER JOIN Orders ON Customers.CustomerID = Orders.CustomerID INNER JOIN OrderDetails ON Orders.OrderID = OrderDetails.OrderID
When I create and run this view in 3.x, I get all of the rows back, but all values are NULL!
If I run the SELECT statement apart from the view, it I get the data back fine. But if I select * FROM Invoices, I get all of the rows back, but all values are NULL.
Another interesting thing is that when selecting from the View, the column names are without the table prefix. That is, CustomerID, CompanyName, OrderID, et. But if I select from the tables directly, the column names have the table prefix, Customers.CustomerID, Customers.CompanyName, Orders.OrderID
I have put the database up on my website here (Zip file):
www.eztools-software.com/downloads/northwind.zip
This is happening in all version 3.0.5-3.0.7. Can someone please download this DB and investigate.
If you want to test the same view and data with a v2.x database, you can get the SqlitePlus28 download from here:
www.eztools-software.com/downloads/sqliteplus.exe
TIA -Brett Goodman
