PostgreSQL Reader

PostgreSQL Reader 插件用于从 PostgreSQL 读取数据

示例

假定建表语句以及输入插入语句如下：

create table if not exists addax_tbl
(
    c_bigint bigint,
    c_bit bit(3),
    c_bool boolean,
    c_byte bytea,
    c_char char(10),
    c_varchar varchar(20),
    c_date date,
    c_double float8,
    c_int integer,
    c_json json,
    c_number decimal(8, 3),
    c_real real,
    c_small smallint,
    c_text text,
    c_ts timestamp,
    c_uuid uuid,
    c_xml xml,
    c_money money,
    c_inet inet,
    c_cidr cidr,
    c_macaddr macaddr
    );

insert into addax_tbl
values (999988887777,
        b'101',
        TRUE,
        '\xDEADBEEF',
        'hello',
        'hello, world',
        '2021-01-04',
        999888.9972,
        9876542,
        '{"bar": "baz", "balance": 7.77, "active": false}'::json,
        12345.123,
        123.123,
        126,
        'this is a long text ',
        '2020-01-04 12:13:14',
        'A0EEBC99-9C0B-4EF8-BB6D-6BB9BD380A11'::uuid,
        '<foo>bar</foo>'::xml,
        '52093.89'::money,
        '192.168.1.1'::inet,
        '192.168.1/24'::cidr,
        '08002b:010203'::macaddr);

配置一个从PostgreSQL数据库同步抽取数据到本地的作业:

job/postgres2stream.json

{
  "job": {
    "setting": {
      "speed": {
        "byte": -1,
        "channel": 1
      }
    },
    "content": {
      "reader": {
        "name": "postgresqlreader",
        "parameter": {
          "username": "pgtest",
          "password": "pgtest",
          "column": [
            "*"
          ],
          "connection": [
            {
              "table": [
                "addax_tbl"
              ],
              "jdbcUrl": [
                "jdbc:postgresql://127.0.0.1:5432/pgtest"
              ]
            }
          ]
        }
      },
      "writer": {
        "name": "streamwriter",
        "parameter": {
          "print": true
        }
      }
    }
  }
}

将上述配置文件保存为 job/postgres2stream.json

执行采集命令

执行以下命令进行数据采集

bin/addax.sh job/postgres2stream.json

参数说明

该插件基于 RDBMS Reader 实现，因此可以参考 RDBMS Reader 的所有配置项。