How to implement the functionality similar to the BDE/Paradox
TTable.FindNearest?
Suppose we have huge table. On the screen we need to show contents of that
table in the Grid and under that Grid user can input in TextBox some letters.
OnChange of this TextBox we need to make current row selection in the Grid on
the row with value of some column nearest to the user input in the TextBox.
How this can be implemented in PostgreSQL?
At my first sight:
I found there is CURSOR functionality which can move that cursor through the
ResultSet. But we can move it just relatively phisical row number. Is there any
chance to make cursor move to the row by some rule based on the row values?
All possible approaches and ideas highly appreciated. There is just one
requirement - the performance, it should work as fast as possible.
Regards,
Alexander Ilyin
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