# groonga - An open-source fulltext search engine and column store.

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# 7.3.24. `logical_select`

## 7.3.24.1. Summary

Note

This command is an experimental feature.

New in version 5.0.5.

TODO

## 7.3.24.2. Syntax

`logical_select` command has seven parameters.

The required parameters are `logical_table` and `shard_key`:

    logical_select logical_table
                   shard_key
                   [min]
                   [min_border]
                   [max]
                   [max_border]
                   [filter]

## 7.3.24.3. Usage

TODO

## 7.3.24.4. Parameters

This section describes parameters of `logical_select`.

### 7.3.24.4.1. Required parameter

There are required parameters, `logical_table` and `shard_key`.

#### 7.3.24.4.1.1. `logical_table`

Specifies logical table name. It means table name without "_YYYYMMDD" postfix. If you use actual table such as "Logs_20150203", "Logs_20150203" and so on, logical table name is "Logs".

#### 7.3.24.4.1.2. `shard_key`

Specifies column name which is treated as shared key in each parted table.

### 7.3.24.4.2. Optional parameters

There are optional parameters.

#### 7.3.24.4.2.1. `min`

Specifies the min value of `shard_key`

#### 7.3.24.4.2.2. `min_border`

Specifies whether the min value of borderline must be include or not. Specify `include` or `exclude` as the value of this parameter.

#### 7.3.24.4.2.3. `max`

Specifies the max value of `shard_key`.

#### 7.3.24.4.2.4. `max_border`

Specifies whether the max value of borderline must be include or not. Specify `include` or `exclude` as the value of this parameter.

#### 7.3.24.4.2.5. `filter`

## 7.3.24.5. Return value

TODO: add more description for RESULTS

    [HEADER, RESULTS]

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