improve 'build table tablename force=true';

src/main/java/com/alibaba/druid/sql/ast/statement/SQLBuildTableStatement.java

@@ -24,6 +24,7 @@ public class SQLBuildTableStatement extends SQLStatementImpl {
     private SQLName table;
     private SQLIntegerExpr version;
     private boolean withSplit = false;
+    private boolean force = false;
 
     @Override
     protected void accept0(SQLASTVisitor visitor) {
@@ -57,4 +58,12 @@ public class SQLBuildTableStatement extends SQLStatementImpl {
     public void setWithSplit(boolean withSplit) {
         this.withSplit = withSplit;
     }
+
+    public boolean isForce() {
+        return force;
+    }
+
+    public void setForce(boolean force) {
+        this.force = force;
+    }
 }

src/main/java/com/alibaba/druid/sql/dialect/mysql/parser/MySqlStatementParser.java

@@ -1935,6 +1935,20 @@ public class MySqlStatementParser extends SQLStatementParser {
             stmt.setWithSplit(true);
         }
 
+        if (lexer.identifierEquals(FnvHash.Constants.FORCE)) {
+            lexer.nextToken();
+
+            accept(EQ);
+
+            if (lexer.token() == TRUE) {
+                lexer.nextToken();
+                stmt.setForce(true);
+            } else if (lexer.token() == FALSE) {
+                lexer.nextToken();
+                stmt.setForce(false);
+            }
+        }
+
         return stmt;
     }
 

src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java

@@ -10666,6 +10666,12 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
             print0(ucase ? " WITH SPLIT" : " with split");
         }
 
+        if (x.isForce()) {
+            print0(ucase ? " FORCE = true" : " force = true");
+        } else {
+            print0(ucase ? " FORCE = false" : " force = false");
+        }
+
         return false;
     }
     @Override