Content of all rows is equals to the content of last row.

Table schema is:
![image](https://user-images.githubusercontent.com/4526911/78420732-7b8a0b00-765a-11ea-9f7b-f0a282641564.png)

```php
\Swoole\Coroutine\run(function () {
    $pg = new \Swoole\Coroutine\PostgreSQL();
    $conn = $pg->connect('host=127.0.0.1 port=5433 dbname=test user=test password=secret');

    dump($pg->metaData('companies'))
}
```

Output is:
<details>
<summary>Click to expand</summary>
```
^ array:15 [
  "id" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "original_name" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "name_rus" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "name_rus_short" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "inn" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "kpp" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "is_foreign" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "is_manufacturer" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "is_holder" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "is_distributor" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "is_pharmacy" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "note" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "created_at" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "updated_at" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "deleted_at" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
]
```
</details>

After fix output is:
<details>
<summary>Click to expand</summary>
```
^ array:15 [
  "id" => array:7 [
    "num" => 1
    "type" => "uuid"
    "len" => 16
    "not null" => true
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "original_name" => array:7 [
    "num" => 2
    "type" => "text"
    "len" => -1
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "name_rus" => array:7 [
    "num" => 3
    "type" => "text"
    "len" => -1
    "not null" => true
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "name_rus_short" => array:7 [
    "num" => 4
    "type" => "text"
    "len" => -1
    "not null" => true
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "inn" => array:7 [
    "num" => 5
    "type" => "varchar"
    "len" => -1
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "kpp" => array:7 [
    "num" => 6
    "type" => "varchar"
    "len" => -1
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "is_foreign" => array:7 [
    "num" => 7
    "type" => "bool"
    "len" => 1
    "not null" => true
    "has default" => true
    "array dims" => 0
    "is enum" => false
  ]
  "is_manufacturer" => array:7 [
    "num" => 8
    "type" => "bool"
    "len" => 1
    "not null" => true
    "has default" => true
    "array dims" => 0
    "is enum" => false
  ]
  "is_holder" => array:7 [
    "num" => 9
    "type" => "bool"
    "len" => 1
    "not null" => true
    "has default" => true
    "array dims" => 0
    "is enum" => false
  ]
  "is_distributor" => array:7 [
    "num" => 10
    "type" => "bool"
    "len" => 1
    "not null" => true
    "has default" => true
    "array dims" => 0
    "is enum" => false
  ]
  "is_pharmacy" => array:7 [
    "num" => 11
    "type" => "bool"
    "len" => 1
    "not null" => true
    "has default" => true
    "array dims" => 0
    "is enum" => false
  ]
  "note" => array:7 [
    "num" => 12
    "type" => "text"
    "len" => -1
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "created_at" => array:7 [
    "num" => 13
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "updated_at" => array:7 [
    "num" => 14
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
  "deleted_at" => array:7 [
    "num" => 15
    "type" => "timestamp"
    "len" => 8
    "not null" => false
    "has default" => false
    "array dims" => 0
    "is enum" => false
  ]
]
```
</details>

According to this PR - php/php-src#4939

Examples:
```
^ Swoole\Coroutine\PostgreSQL {#4
  +error: """
    ERROR:  relation "test" does not exist\n
    LINE 1: SELECT 323r FROM test\n
                             ^\n
    """
  +errorInfo: array:3 [
    0 => "42P01"
    1 => 7
    2 => """
      ERROR:  relation "test" does not exist\n
      LINE 1: SELECT 323r FROM test\n
                               ^\n
      """
  ]
}
```

```
^ Swoole\Coroutine\PostgreSQL {#4
  +error: """
    ERROR:  relation "test" does not exist\n
    LINE 1: SELECT 323r FROM test\n
                             ^\n
    """
  +errorInfo: array:3 [
    0 => "42P01"
    1 => 7
    2 => """
      ERROR:  relation "test" does not exist\n
      LINE 1: SELECT 323r FROM test\n
                               ^\n
      """
  ]
}
^ false
^ Swoole\Coroutine\PostgreSQL {#4
  +error: "ERROR:  prepared statement "some_1" does not exist\n"
  +errorInfo: array:3 [
    0 => "26000"
    1 => 7
    2 => "ERROR:  prepared statement "some_1" does not exist\n"
  ]
}
```

Bugfix in getMetaData

errorInfo attribute added (PDO-like)

Timeout feature added

Casting resultset to native PHP types