func (node *Node) execAnalyzeSelectExpressions(table *schema.Table) (selects []int) {
selects = make([]int, 0, node.Len())
for i := 0; i < node.Len(); i++ {
if name := node.At(i).execAnalyzeSelectExpression(); name != "" {
if name == "*" {
for colIndex := range table.Columns {
selects = append(selects, colIndex)
}
} else if colIndex := table.FindColumn(name); colIndex != -1 {
selects = append(selects, colIndex)
} else {
panic(NewParserError("Column %s not found in table %s", name, table.Name))
}
} else {
// Complex expression
return nil
}
}
return selects
}
