SIMILAR TO: False matches on descending ranges [CORE3523] #3880
Submitted by: @paulvink
Is related to QA486
According to the standard, the range <ch1>-<ch2> includes all the characters greater than or equal to <ch1> and smaller than or equal to <ch2>
Consequently, a descending range such as [p-k] is empty.
Firebird however matches ANY character against a descending range, i.e.
both return 1 whilst they should return an empty set.
====== Test Details ======
See also test for CORE2006
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