Available in versions: Dev (3.18) | Latest (3.17)

This is experimental functionality, and as such subject to change. Use at your own risk!

Merge range predicates

Applies to ✅ Open Source Edition   ✅ Express Edition   ✅ Professional Edition   ✅ Enterprise Edition

An AND predicate combining range predicates that share the same operands can often be merged into a single BETWEEN predicate predicate comparing the left operand with the two right operands.

Using Settings.transformPatternsMergeRangePredicates, the following transformations can be achieved:

-- With Settings.transformPatternsMergeRangePredicates active, this:
SELECT * FROM tab WHERE x >= a AND x <= b;

-- ... is transformed into the equivalent expression:
SELECT * FROM tab WHERE x BETWEEN a AND b;

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