Keywords: derby.language.logQueryPlan, Statement execution, debugging, Statements

# derby.language.logQueryPlan

#### Function

When this property is set to true, Derby writes the query plan information into the derby.log file for all executed queries.

This property is useful for debugging to know what query plan was chosen by the optimizer.

#### Example

    derby.language.logQueryPlan=true

#### Default

False.

#### Dynamic or static

static

Parent topic: Derby properties
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