Test the nearest approach distance of a number span

test/sql/parity/036_tnumber_distance_span.test

@@ -0,0 +1,60 @@
+# name: test/sql/parity/036_tnumber_distance_span.test
+# description: MobilityDB regression file 036_tnumber_distance.test.sql adapted for MobilityDuck
+# group: [sql]
+#
+# The nearest approach distance of a number span to a temporal box or to a
+# temporal number of its base type, in either order.
+
+require mobilityduck
+
+query I
+SELECT intspan '[-5,-4)' |=| tbox 'TBOXINT XT([0,6),[2001-01-01,2001-01-03])';
+----
+5.0
+
+query I
+SELECT tbox 'TBOXINT XT([0,6),[2001-01-01,2001-01-03])' |=| intspan '[10,12)';
+----
+5.0
+
+query I
+SELECT floatspan '[-5,-4]' |=| tbox 'TBOXFLOAT X([0,5])';
+----
+4.0
+
+query I
+SELECT tint '[0@2001-01-01, 5@2001-01-03]' |=| intspan '[-5,-4)';
+----
+5.0
+
+query I
+SELECT intspan '[10,12)' |=| tint '[0@2001-01-01, 5@2001-01-03]';
+----
+5.0
+
+query I
+SELECT bigintspan '[10,12)' |=| tbigint '[0@2001-01-01, 5@2001-01-03]';
+----
+5.0
+
+query I
+SELECT tfloat '[0@2001-01-01, 5@2001-01-03]' |=| floatspan '[-5,-4]';
+----
+4.0
+
+query I
+SELECT nearestApproachDistance(intspan '[1,3)', tbox 'TBOXINT X([2,6))');
+----
+0.0
+
+# MobilityDB refuses it in its PostgreSQL wrapper; DuckDB reaches
+# nad_floatspan_tbox, whose MEOS validation refuses the integer box
+statement error
+SELECT floatspan '[1,2]' |=| tbox 'TBOXINT X([0,6))';
+----
+The span must be of type floatspan
+
+statement error
+SELECT intspan '[1,2)' |=| tbox 'TBOX T([2001-01-01,2001-01-02])';
+----
+The tbox must have X dimension