AFAICT SQLite's foreign_key_list($table_name) pragma returns a list of 8 elements in this order (i.e. with these interpretations): 1: COUNT 2: KEY_SEQ 3: FKTABLE_NAME 4: PKCOLUMN_NAME 5: FKCOLUMN_NAME 6: UPDATE_RULE 7: DELETE_RULE 8: UNKNOWN If anyone can explain the last item, or offer corrections, please advise.
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