You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
40 lines
738 B
40 lines
738 B
using System.Text;
|
|
|
|
namespace Connected.Data.Schema.Sql
|
|
{
|
|
internal class IndexDrop : TableTransaction
|
|
{
|
|
public IndexDrop(ObjectIndex index)
|
|
{
|
|
Index = index;
|
|
}
|
|
|
|
private ObjectIndex Index { get; }
|
|
|
|
protected override async Task OnExecute()
|
|
{
|
|
switch (Index.Type)
|
|
{
|
|
case IndexType.Index:
|
|
await Context.Execute(CommandText);
|
|
break;
|
|
case IndexType.Unique:
|
|
case IndexType.PrimaryKey:
|
|
await new ConstraintDrop(Index).Execute(Context);
|
|
break;
|
|
}
|
|
}
|
|
|
|
private string CommandText
|
|
{
|
|
get
|
|
{
|
|
var text = new StringBuilder();
|
|
|
|
text.AppendLine($"DROP INDEX {Index.Name} ON {Escape(Context.Schema.SchemaName(), Context.Schema.Name)};");
|
|
|
|
return text.ToString();
|
|
}
|
|
}
|
|
}
|
|
} |