Improve Sybase and SQLServer blob lob generation

hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/SQLServerLegacyDialect.java

@@ -127,7 +127,13 @@ public class SQLServerLegacyDialect extends AbstractTransactSQLDialect {
 				case BLOB:
 				case CLOB:
 				case NCLOB:
-					return Size.length( getDefaultLobLength() );
+					return super.resolveSize(
+							jdbcType,
+							javaType,
+							precision,
+							scale,
+							length == null ? getDefaultLobLength() : length
+					);
 				default:
 					return super.resolveSize( jdbcType, javaType, precision, scale, length );
 			}

hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/SybaseLegacyDialect.java

@@ -104,7 +104,13 @@ public class SybaseLegacyDialect extends AbstractTransactSQLDialect {
 				case Types.NCLOB:
 				case Types.CLOB:
 				case Types.BLOB:
-					return Size.length( getDefaultLobLength() );
+					return super.resolveSize(
+							jdbcType,
+							javaType,
+							precision,
+							scale,
+							length == null ? getDefaultLobLength() : length
+					);
 				case Types.FLOAT:
 					// Sybase ASE allows FLOAT with a precision up to 48
 					if ( precision != null ) {

hibernate-core/src/main/java/org/hibernate/dialect/SQLServerDialect.java

@@ -148,7 +148,13 @@ public class SQLServerDialect extends AbstractTransactSQLDialect {
 				case BLOB:
 				case CLOB:
 				case NCLOB:
-					return Size.length( getDefaultLobLength() );
+					return super.resolveSize(
+							jdbcType,
+							javaType,
+							precision,
+							scale,
+							length == null ? getDefaultLobLength() : length
+					);
 				default:
 					return super.resolveSize( jdbcType, javaType, precision, scale, length );
 			}

hibernate-core/src/main/java/org/hibernate/dialect/SybaseASEDialect.java

@@ -73,7 +73,13 @@ public class SybaseASEDialect extends SybaseDialect {
 				case Types.NCLOB:
 				case Types.CLOB:
 				case Types.BLOB:
-					return Size.length( getDefaultLobLength() );
+					return super.resolveSize(
+							jdbcType,
+							javaType,
+							precision,
+							scale,
+							length == null ? getDefaultLobLength() : length
+					);
 				case Types.FLOAT:
 					// Sybase ASE allows FLOAT with a precision up to 48
 					if ( precision != null ) {