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Johan

Have a look at

http://instantdb.enhydra.org/software/documentation/types.html

The section on string literals should explain what's going on and how to get
around it.

> there is a workaround using the like function:
> select tableid from table where name like 'naam'
>
> is this as fast as using the normal = ?

"Like" will be much slower than "=" in InstantDB. "=" is optimised to
prevent instantiation of unmatched String objects. "Like" does not perform
this optimisation.

Regards

Peter Hearty
Lutris Technologies (UK)
----- Original Message -----
From: "Johan Compagner" <joco@wxs.nl>
To: <instantdb@enhydra.org>
Sent: Friday, August 25, 2000 11:00 AM
Subject: InstantDB: Bug or not a Bug.


> I have the following table named table:
>
> |tableid| name| typeid |
> |-------------|-------|
> |   1     |name | 1000 |
> |-------------|-------|
> |   2     |typeid| 1001 |
> ----------------------
>
> You see the name column has a value name.
>
> If i want to select on name i do this:
>
> select tableid from table where name = 'name' (every row is selected)
> or
> select tableid from table where name = 'typeid' (exception: Illegal
mixture
> of string/numeric.)
>
> it seems that the name between the quotes is also parsed as a column name.
> I really don't know if this is a bug or not because i don't know what SQL
is
> saying
> about this. Because i think that quotes can be used (i don't know exactly
> how) in the where with column names.
>
> there is a workaround using the like function:
> select tableid from table where name like 'naam'
>
> is this as fast as using the normal = ?
>
> I hope that i can have an option so that when i place after the = a string
> between quotes
> the string is parsed as a table value and not as a column name.
>
> Johan Compagner
>
> P.S. When is instantdb released as open source (that i could look for
> myself)
>
>
>
>
>
> --------------------------------------------------------------------------
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