min

Syntax

min(col)

Parameters

Return Values

The return value is of the DOUBLE type.

The return type is the same as the type of col. The return rules are as follows:

• If the value of col is NULL, the row is not involved in calculation.
• If the value of col is of the BOOLEAN type, it cannot be used for calculation.

Example Code

• Calculates the minimum inventory (items) of all offerings. An example command is as follows:

  select min(items) from warehouse;

  The command output is as follows:

  _c0        
  600        

• When used with group by, it returns the minimum inventory of each warehouse. An example command is as follows:

  select warehourseId, min(items) from warehouse group by warehourseId;

  The command output is as follows:

  warehouseId _c1        
  city1      15         
  city2      10         
  city3      19