fix: correctly set primary key for data table

db_schema.sql

@@ -13,9 +13,9 @@ CREATE TABLE IF NOT EXISTS facts (
 
 CREATE TABLE IF NOT EXISTS data (
     cik INT,                            -- CIK of the company
-    fact_id VARCHAR(255),                 
+    fact_id VARCHAR(255),
+    end DATE,                 
     start DATE,                        -- Start date of the fact
-    end DATE,
     val INT,
     accn VARCHAR(255),
     fy INT,
@@ -23,7 +23,7 @@ CREATE TABLE IF NOT EXISTS data (
     form VARCHAR(255),
     filed DATE,
     frame VARCHAR(255),
-    PRIMARY KEY (cik, fact_id),
+    PRIMARY KEY (cik, fact_id, end),
     FOREIGN KEY (cik) REFERENCES entities(cik),
     FOREIGN KEY (fact_id) REFERENCES facts(id)
 );