public virtual void Visit(ExtDdlCreatePolicy node)
{
}
/// <summary>nothing has been pre-consumed</summary>
/// <exception cref="System.SqlSyntaxErrorException" />
public virtual IDdlStatement DdlStmt()
{
Identifier idTemp1;
Identifier idTemp2;
SpecialIdentifier siTemp;
switch (lexer.Token())
{
case MySqlToken.KwAlter:
{
var ignore = false;
if (lexer.NextToken() == MySqlToken.KwIgnore)
{
ignore = true;
lexer.NextToken();
}
switch (lexer.Token())
{
case MySqlToken.KwTable:
{
lexer.NextToken();
idTemp1 = Identifier();
var alterTableStatement = new DdlAlterTableStatement(ignore, idTemp1);
return AlterTable(alterTableStatement);
}
default:
{
throw Err("Only ALTER TABLE is supported");
}
}
//goto case MySqlToken.KwCreate;
}
case MySqlToken.KwCreate:
{
switch (lexer.NextToken())
{
case MySqlToken.KwUnique:
case MySqlToken.KwFulltext:
case MySqlToken.KwSpatial:
{
lexer.NextToken();
goto case MySqlToken.KwIndex;
}
case MySqlToken.KwIndex:
{
lexer.NextToken();
idTemp1 = Identifier();
for (; lexer.Token() != MySqlToken.KwOn; lexer.NextToken())
{
}
lexer.NextToken();
idTemp2 = Identifier();
return new DdlCreateIndexStatement(idTemp1, idTemp2);
}
case MySqlToken.KwTable:
{
lexer.NextToken();
return CreateTable(false);
}
case MySqlToken.Identifier:
{
siTemp = specialIdentifiers.GetValue(lexer.GetStringValueUppercase());
if (siTemp != SpecialIdentifier.None)
{
switch (siTemp)
{
case SpecialIdentifier.Temporary:
{
lexer.NextToken();
Match(MySqlToken.KwTable);
return CreateTable(true);
}
case SpecialIdentifier.Policy:
{
lexer.NextToken();
var policyName = Identifier();
Match(MySqlToken.PuncLeftParen);
var policy = new ExtDdlCreatePolicy(policyName);
for (var j = 0; lexer.Token() != MySqlToken.PuncRightParen; ++j)
{
if (j > 0)
{
Match(MySqlToken.PuncComma);
}
var id = (int)lexer.GetIntegerValue();
Match(MySqlToken.LiteralNumPureDigit);
var val = exprParser.Expression();
policy.AddProportion(id, val);
}
Match(MySqlToken.PuncRightParen);
return policy;
}
}
}
goto default;
}
default:
{
throw Err("unsupported Ddl for CREATE");
}
}
//goto case MySqlToken.KwDrop;
}
case MySqlToken.KwDrop:
{
switch (lexer.NextToken())
{
case MySqlToken.KwIndex:
{
lexer.NextToken();
idTemp1 = Identifier();
Match(MySqlToken.KwOn);
idTemp2 = Identifier();
return new DdlDropIndexStatement(idTemp1, idTemp2);
}
case MySqlToken.KwTable:
{
lexer.NextToken();
return DropTable(false);
}
case MySqlToken.Identifier:
{
siTemp = specialIdentifiers.GetValue(lexer.GetStringValueUppercase());
if (siTemp != SpecialIdentifier.None)
{
switch (siTemp)
{
case SpecialIdentifier.Temporary:
{
lexer.NextToken();
Match(MySqlToken.KwTable);
return DropTable(true);
}
case SpecialIdentifier.Policy:
{
lexer.NextToken();
var policyName = Identifier();
return new ExtDdlDropPolicy(policyName);
}
}
}
goto default;
}
default:
{
throw Err("unsupported Ddl for DROP");
}
}
//goto case MySqlToken.KwRename;
}
case MySqlToken.KwRename:
{
lexer.NextToken();
Match(MySqlToken.KwTable);
idTemp1 = Identifier();
Match(MySqlToken.KwTo);
idTemp2 = Identifier();
IList<Pair<Identifier, Identifier>> list;
if (lexer.Token() != MySqlToken.PuncComma)
{
list = new List<Pair<Identifier, Identifier>>(1);
list.Add(new Pair<Identifier, Identifier>(idTemp1, idTemp2));
return new DdlRenameTableStatement(list);
}
list = new List<Pair<Identifier, Identifier>>();
list.Add(new Pair<Identifier, Identifier>(idTemp1, idTemp2));
for (; lexer.Token() == MySqlToken.PuncComma;)
{
lexer.NextToken();
idTemp1 = Identifier();
Match(MySqlToken.KwTo);
idTemp2 = Identifier();
list.Add(new Pair<Identifier, Identifier>(idTemp1, idTemp2));
}
return new DdlRenameTableStatement(list);
}
case MySqlToken.Identifier:
{
var si = specialIdentifiers.GetValue(lexer.GetStringValueUppercase());
if (si != SpecialIdentifier.None)
{
switch (si)
{
case SpecialIdentifier.Truncate:
{
return Truncate();
}
}
}
goto default;
}
default:
{
throw Err("unsupported Ddl");
}
}
}
