本文整理匯總了Golang中github.com/pingcap/tidb/util/types.FieldType.Tp方法的典型用法代碼示例。如果您正苦於以下問題：Golang FieldType.Tp方法的具體用法？Golang FieldType.Tp怎麽用？Golang FieldType.Tp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/util/types.FieldType的用法示例。
在下文中一共展示了FieldType.Tp方法的2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: handleCaseExpr
// The return type of a CASE expression is the compatible aggregated type of all return values,
// but also depends on the context in which it is used.
// If used in a string context, the result is returned as a string.
// If used in a numeric context, the result is returned as a decimal, real, or integer value.
func (v *typeInferrer) handleCaseExpr(x *ast.CaseExpr) {
var currType *types.FieldType
for _, w := range x.WhenClauses {
t := w.Result.GetType()
if currType == nil {
currType = t
continue
}
mtp := types.MergeFieldType(currType.Tp, t.Tp)
if mtp == t.Tp && mtp != currType.Tp {
currType.Charset = t.Charset
currType.Collate = t.Collate
}
currType.Tp = mtp
}
if x.ElseClause != nil {
t := x.ElseClause.GetType()
if currType == nil {
currType = t
} else {
mtp := types.MergeFieldType(currType.Tp, t.Tp)
if mtp == t.Tp && mtp != currType.Tp {
currType.Charset = t.Charset
currType.Collate = t.Collate
}
currType.Tp = mtp
}
}
x.SetType(currType)
// TODO: We need a better way to set charset/collation
x.Type.Charset, x.Type.Collate = types.DefaultCharsetForType(x.Type.Tp)
}示例2: ProtoColumnsToFieldTypes
// ProtoColumnsToFieldTypes converts tipb column info slice to FieldTyps slice.
func ProtoColumnsToFieldTypes(pColumns []*tipb.ColumnInfo) []*types.FieldType {
fields := make([]*types.FieldType, len(pColumns))
for i, v := range pColumns {
field := new(types.FieldType)
field.Tp = byte(v.GetTp())
field.Collate = mysql.Collations[byte(v.GetCollation())]
field.Decimal = int(v.GetDecimal())
field.Flen = int(v.GetColumnLen())
field.Flag = uint(v.GetFlag())
field.Elems = v.GetElems()
fields[i] = field
}
return fields
}