Module match_recognize 

Streaming MATCH_RECOGNIZE (SQL:2016 row pattern recognition).

The ordered-input matcher: the executor consumes rows already in ORDER BY order (see the planner’s EowcSort insertion), feeding a per-partition incremental NFA matcher and emitting matches on completion. nfa carries the pattern-matching core with its catastrophic-backtracking defenses; incremental the appended-rows matcher; proto the structured pattern decoding.

Modules

executor

Streaming MATCH_RECOGNIZE executor over ordered input.

incremental

Incremental driver over the row-pattern Nfa.

nfa

Row-pattern NFA for MATCH_RECOGNIZE.

proto

Decode the structured row-pattern proto into the executor-side Pattern. The frontend lowers the SQL PATTERN clause directly into this proto tree, so there is no textual round-trip.