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
}
