text: -- @testpoint: openGauss保留关键字 Cast 作为列名带双引号，使用时带单引号或反引号，大小写匹配（合理报错）
  drop table if exists test_tbl;
  create table test_tbl(
  	c_id int, c_int int, c_integer integer, c_bool int, c_boolean int, c_bigint integer,
  	c_real real, c_double real,
  	c_decimal decimal(38), c_number number(38), c_numeric numeric(38),
  	c_char char(50) default null, c_varchar varchar(20), c_varchar2 varchar2(4000),
  	c_date date, c_datetime date, c_timestamp timestamp,
  	“Cast” char(50)
  )
  PARTITION BY RANGE (c_integer)
  (
  	partition P_20180121 values less than (0),
  	partition P_20190122 values less than (50000),
  	partition P_20200123 values less than (100000),
  	partition P_max values less than (maxvalue)
  );
  
  --插入数据
  insert into test_tbl(c_id,'Cast') values(2,'china');
  insert into test_tbl(c_id,`Cast`) values(2,'china');
  drop table if exists test_tbl;
  