Return proper precision and display size for SequenceValue and optimize getValue()

h2/src/main/org/h2/expression/SequenceValue.java

@@ -11,7 +11,6 @@ import org.h2.schema.Sequence;
 import org.h2.table.ColumnResolver;
 import org.h2.table.TableFilter;
 import org.h2.value.Value;
-import org.h2.value.ValueInt;
 import org.h2.value.ValueLong;
 
 /**
@@ -27,9 +26,9 @@ public class SequenceValue extends Expression {
 
     @Override
     public Value getValue(Session session) {
-        long value = sequence.getNext(session);
-        session.setLastIdentity(ValueLong.get(value));
-        return ValueLong.get(value);
+        ValueLong value = ValueLong.get(sequence.getNext(session));
+        session.setLastIdentity(value);
+        return value;
     }
 
     @Override
@@ -59,12 +58,12 @@ public class SequenceValue extends Expression {
 
     @Override
     public long getPrecision() {
-        return ValueInt.PRECISION;
+        return ValueLong.PRECISION;
     }
 
     @Override
     public int getDisplaySize() {
-        return ValueInt.DISPLAY_SIZE;
+        return ValueLong.DISPLAY_SIZE;
     }
 
     @Override