Updated on 2023-10-23 GMT+08:00

Query Planning

This section describes the method configuration, cost constants, planning algorithm, and some configuration parameters for the optimizer.

  • Two parameters are involved in the optimizer:
    • INT_MAX indicates the maximum value of the INT data type. The value is 2147483647.
    • DBL_MAX indicates the maximum value of the FLOAT data type.
  • In addition to customer services, global query planning parameters also affect database O&M and monitoring services, such as WDR generation, scale-out, redistribution, and data import and export.