On 18/04/2019 16:36, Roland Hughes wrote:
The "filter" for SQL is the WHERE clause on the SELECT statement. A "filter" in the C++ world works on the result of the query. Worst case it doubles the memory and transfer resources required. When the goal is reduction of required resources, a filter after the fact cannot help.
The original statement said "Its not possible to make the filter part of the SQL query" (sic). I asked why. This is not an answer, just a show-off that you know how SQL filtering works.
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