Function scan

```
  /**
   * @param params {{
   *  filters: [{ // required
   *    column: {string}, //required
   *    type: {string}, // optional, default: 'S'
   *    value: {string}, //required
   *    op: {string} // opitional, default: 'EQ'
   *  }],
   *  attrsGet: [string], // optional, default: [hashKey]
   *  limit: [number], // optional
   *  totalSegment: [number], // optional
   *  segment: [number] // optional
   * }}
   */
scan = function(params)
```