text: --  @testpoint:opengauss关键字Collation(保留)，作为存储过程名
  
  --关键字不带引号-成功
  create or replace procedure Collation() is
  V1 BLOB;
  begin
    IF V1 is NULL then
    raise info 'V1 is NULL';
    else
    raise info 'V1 is not NULL';
    end if;
  end;
  /
  
  --清理环境
  drop procedure Collation;
  
  --关键字带双引号-成功
  create or replace procedure "Collation"() is
  V1 BLOB;
  begin
    IF V1 is NULL then
    raise info 'V1 is NULL';
    else
    raise info 'V1 is not NULL';
    end if;
  end;
  /
  
  --清理环境
  drop procedure "Collation";
  
  --关键字带单引号-合理报错
  create or replace procedure 'Collation'() is
  V1 BLOB;
  begin
    IF V1 is NULL then
    raise info 'V1 is NULL';
    else
    raise info 'V1 is not NULL';
    end if;
  end;
  /
  
  --关键字带反引号-合理报错
  create or replace procedure `Collation`() is
  V1 BLOB;
  begin
    IF V1 is NULL then
    raise info 'V1 is NULL';
    else
    raise info 'V1 is not NULL';
    end if;
  end;
  /
  