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Inline constants in expressions like: SELECT x, x+1 FROM (VALUES (1)) AS t(x) ; with the new inlining rules, this becomes: VALUES (1, 2) The new inlining rules are useful for mutation expressions (e.g. UPDATE), which can nest multiple Project and Values expressions that often use constant values. For example: CREATE TABLE ab (a INT PRIMARY KEY, b INT AS (a + 1) STORED); UPDATE ab SET a=1 This now gets mapped by the optimizer to this internal equivalent: UPDATE ab SET a=1, b=2 Release note: None
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