Snowflake: parse MATCH_RECOGNIZE window semantics - #28
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osipovartem merged 1 commit intoSep 15, 2026
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What does this PR do?
Preserves explicit
RUNNINGandFINALwindow semantics on expressions in aMATCH_RECOGNIZE MEASURESclause.For example,
FINAL LAST(price)is now represented directly in theMeasureAST and round-trips without droppingFINAL. Measures without an explicit modifier retainNone, so existing syntax is unchanged.Snowflake documents the syntax and frame behavior in the
MATCH_RECOGNIZEnavigational functions reference.Tests
cargo +1.95.0 test --offline --all-features match_recognizecargo +1.95.0 test --offline --all-featurescargo +1.95.0 clippy --offline --all-targets --all-features -- -D warningscargo +1.95.0 fmt --all -- --check