CREATE TABLE table_25071 ("State  ( class ) " CLOB, "Vacator" CLOB, "Reason for change" CLOB, "Successor" CLOB, "Date of successors formal installation" CLOB)

What is the date of successors formal installation when the reason for change is resigned december 4, 1819?
SELECT "Date of successors formal installation" FROM table_25071 WHERE "Reason for change" = 'Resigned December 4, 1819'
SELECT "Date of successors formal installation" FROM "table_25071" WHERE "Reason for change" = 'Resigned December 4, 1819'