ORA-62518
MATCH_RECOGNIZE pattern is too large.
Cause
MATCH_RECOGNIZE pattern was too large. More than UB2MAXVAL elements in alternation, concatenation, or permute, or more than UB4MAXVAL states in the state machine are currently not supported. Permute with more than 7 elements or bounded quantifier bound greater than 200 are also currently not supported.
Action
Modify the query and retry the operation.