Golang AggregateFuncExpr.SetNull Examples

Example #1

File: evaluator.go Project: yangxuanjia/tidb

func (e *Evaluator) evalAggGroupConcat(v *ast.AggregateFuncExpr) {
	ctx := v.GetContext()
	if ctx.Buffer != nil {
		v.SetString(ctx.Buffer.String())
	} else {
		v.SetNull()
	}
}