Changing to be V1 value

Author: Paultagoras

jdbc-v2/src/main/java/com/clickhouse/jdbc/internal/JdbcUtils.java

@@ -41,7 +41,7 @@ private static Map<ClickHouseDataType, SQLType> generateTypeMap() {
         map.put(ClickHouseDataType.Decimal64, JDBCType.DECIMAL);
         map.put(ClickHouseDataType.Decimal128, JDBCType.DECIMAL);
         map.put(ClickHouseDataType.String, JDBCType.VARCHAR);
-        map.put(ClickHouseDataType.FixedString, JDBCType.CHAR);
+        map.put(ClickHouseDataType.FixedString, JDBCType.VARCHAR);
         map.put(ClickHouseDataType.Enum8, JDBCType.VARCHAR);
         map.put(ClickHouseDataType.Enum16, JDBCType.VARCHAR);
         map.put(ClickHouseDataType.Date, JDBCType.DATE);

jdbc-v2/src/test/java/com/clickhouse/jdbc/metadata/DatabaseMetaDataTest.java

@@ -40,7 +40,7 @@ public void testGetColumns() throws Exception {
             List<String> columnNames = Arrays.asList("id", "name", "float1", "fixed_string1", "decimal_1", "nullable_column", "date", "datetime");
             List<String> columnTypes = Arrays.asList("UInt64", "String", "Float32", "FixedString(10)", "Decimal(10, 2)", "Nullable(Decimal(5, 4))", "Date", "DateTime");
             List<Integer> columnSizes = Arrays.asList(8, 0, 4, 10, 10, 5, 2, 0);
-            List<Integer> columnJDBCDataTypes = Arrays.asList(Types.BIGINT, Types.VARCHAR, Types.FLOAT, Types.CHAR, Types.DECIMAL, Types.DECIMAL, Types.DATE, Types.TIMESTAMP);
+            List<Integer> columnJDBCDataTypes = Arrays.asList(Types.BIGINT, Types.VARCHAR, Types.FLOAT, Types.VARCHAR, Types.DECIMAL, Types.DECIMAL, Types.DATE, Types.TIMESTAMP);
             List<String> columnTypeNames = Arrays.asList("UInt64", "String", "Float32", "FixedString(10)", "Decimal(10, 2)", "Nullable(Decimal(5, 4))", "Date", "DateTime");
             List<Boolean> columnNullable = Arrays.asList(false, false, false, false, false, true, false, false);
             List<Integer> columnDecimalDigits = Arrays.asList(null, null, null, null, 2, 4, null, null);