本文整理匯總了Golang中github.com/cockroachdb/cockroach/sql/sqlbase.TableDescriptor.FindActiveColumnByName方法的典型用法代碼示例。如果您正苦於以下問題：Golang TableDescriptor.FindActiveColumnByName方法的具體用法？Golang TableDescriptor.FindActiveColumnByName怎麽用？Golang TableDescriptor.FindActiveColumnByName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/cockroachdb/cockroach/sql/sqlbase.TableDescriptor的用法示例。
在下文中一共展示了TableDescriptor.FindActiveColumnByName方法的3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: processColumns
func (p *planner) processColumns(tableDesc *sqlbase.TableDescriptor,
node parser.QualifiedNames) ([]sqlbase.ColumnDescriptor, error) {
if node == nil {
// VisibleColumns is used here to prevent INSERT INTO <table> VALUES (...)
// (as opposed to INSERT INTO <table> (...) VALUES (...)) from writing
// hidden columns. At present, the only hidden column is the implicit rowid
// primary key column.
return tableDesc.VisibleColumns(), nil
}
cols := make([]sqlbase.ColumnDescriptor, len(node))
colIDSet := make(map[sqlbase.ColumnID]struct{}, len(node))
for i, n := range node {
// TODO(pmattis): If the name is qualified, verify the table name matches
// tableDesc.Name.
if err := n.NormalizeColumnName(); err != nil {
return nil, err
}
col, err := tableDesc.FindActiveColumnByName(n.Column())
if err != nil {
return nil, err
}
if _, ok := colIDSet[col.ID]; ok {
return nil, fmt.Errorf("multiple assignments to same column \"%s\"", n.Column())
}
colIDSet[col.ID] = struct{}{}
cols[i] = col
}
return cols, nil
}示例2: makeColIDtoRowIndex
func makeColIDtoRowIndex(row planNode, desc *sqlbase.TableDescriptor) (
map[sqlbase.ColumnID]int, error,
) {
columns := row.Columns()
colIDtoRowIndex := make(map[sqlbase.ColumnID]int, len(columns))
for i, column := range columns {
col, err := desc.FindActiveColumnByName(column.Name)
if err != nil {
return nil, err
}
colIDtoRowIndex[col.ID] = i
}
return colIDtoRowIndex, nil
}示例3: processColumns
func (p *planner) processColumns(tableDesc *sqlbase.TableDescriptor,
node parser.UnresolvedNames) ([]sqlbase.ColumnDescriptor, error) {
if node == nil {
// VisibleColumns is used here to prevent INSERT INTO <table> VALUES (...)
// (as opposed to INSERT INTO <table> (...) VALUES (...)) from writing
// hidden columns. At present, the only hidden column is the implicit rowid
// primary key column.
return tableDesc.VisibleColumns(), nil
}
cols := make([]sqlbase.ColumnDescriptor, len(node))
colIDSet := make(map[sqlbase.ColumnID]struct{}, len(node))
for i, n := range node {
c, err := n.NormalizeUnqualifiedColumnItem()
if err != nil {
return nil, err
}
if len(c.Selector) > 0 {
return nil, util.UnimplementedWithIssueErrorf(8318, "compound types not supported yet: %q", n)
}
col, err := tableDesc.FindActiveColumnByName(c.ColumnName)
if err != nil {
return nil, err
}
if _, ok := colIDSet[col.ID]; ok {
return nil, fmt.Errorf("multiple assignments to the same column %q", n)
}
colIDSet[col.ID] = struct{}{}
cols[i] = col
}
return cols, nil
}