本文整理匯總了Golang中github.com/pingcap/tidb/plan.Selection.Conditions方法的典型用法代碼示例。如果您正苦於以下問題：Golang Selection.Conditions方法的具體用法？Golang Selection.Conditions怎麽用？Golang Selection.Conditions使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/pingcap/tidb/plan.Selection的用法示例。
在下文中一共展示了Selection.Conditions方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: buildSelection
func (b *executorBuilder) buildSelection(v *plan.Selection) Executor {
child := v.GetChildByIndex(0)
oldConditions := v.Conditions
var src Executor
switch x := child.(type) {
case *plan.PhysicalTableScan:
if x.LimitCount == nil {
src = b.buildNewTableScan(x, v)
} else {
src = b.buildNewTableScan(x, nil)
}
case *plan.PhysicalIndexScan:
if x.LimitCount == nil {
src = b.buildNewIndexScan(x, v)
} else {
src = b.buildNewIndexScan(x, nil)
}
default:
src = b.build(x)
}
if len(v.Conditions) == 0 {
v.Conditions = oldConditions
return src
}
exec := &SelectionExec{
Src: src,
Condition: expression.ComposeCNFCondition(v.Conditions),
schema: v.GetSchema(),
ctx: b.ctx,
}
v.Conditions = oldConditions
return exec
}