Hi Henson, > Anchored pattern absorption optimization > > PREFIX elements (e.g., START in "START A+ B") block absorption, > causing O(n^2) regression for anchored patterns. A draft design > exists: track an alternate "shadow" path that skips PREFIX and > starts at the BODY region, enabling absorption eligibility checks > while the original path processes PREFIX normally. This keeps > concurrent contexts bounded to PREFIX_length + 1, maintaining > O(n) complexity. The design needs further refinement before > implementation.
What do you mean by "Anchored pattern" here? I am asking because R010 (RPR in Window clause) does not allow to use anchors (^ and $) in PATTERN clause. Best regards, -- Tatsuo Ishii SRA OSS K.K. English: http://www.sraoss.co.jp/index_en/ Japanese:http://www.sraoss.co.jp
