本文整理匯總了Golang中github.com/jportoles/influxdb092/influxql.SelectStatement.NamesInSelect方法的典型用法代碼示例。如果您正苦於以下問題：Golang SelectStatement.NamesInSelect方法的具體用法？Golang SelectStatement.NamesInSelect怎麽用？Golang SelectStatement.NamesInSelect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/jportoles/influxdb092/influxql.SelectStatement的用法示例。
在下文中一共展示了SelectStatement.NamesInSelect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: createTagSetsAndFields
// createTagSetsAndFields returns the tagsets and various fields given a measurement and
// SELECT statement. It also ensures that the fields and tags exist.
func createTagSetsAndFields(m *Measurement, stmt *influxql.SelectStatement) (*tagSetsAndFields, error) {
_, tagKeys, err := stmt.Dimensions.Normalize()
if err != nil {
return nil, err
}
sfs := newStringSet()
sts := newStringSet()
wfs := newStringSet()
// Validate the fields and tags asked for exist and keep track of which are in the select vs the where
for _, n := range stmt.NamesInSelect() {
if m.HasField(n) {
sfs.add(n)
continue
}
if !m.HasTagKey(n) {
return nil, fmt.Errorf("unknown field or tag name in select clause: %s", n)
}
sts.add(n)
tagKeys = append(tagKeys, n)
}
for _, n := range stmt.NamesInWhere() {
if n == "time" {
continue
}
if m.HasField(n) {
wfs.add(n)
continue
}
if !m.HasTagKey(n) {
return nil, fmt.Errorf("unknown field or tag name in where clause: %s", n)
}
}
// Get the sorted unique tag sets for this statement.
tagSets, err := m.TagSets(stmt, tagKeys)
if err != nil {
return nil, err
}
return &tagSetsAndFields{
tagSets: tagSets,
selectFields: sfs.list(),
selectTags: sts.list(),
whereFields: wfs.list(),
}, nil
}