// Compile compiles an ast.StmtNode to a stmt.Statement.
// If it is supported to use new plan and executer, it optimizes the node to
// a plan, and we wrap the plan in an adapter as stmt.Statement.
// If it is not supported, the node will be converted to old statement.
func (c *Compiler) Compile(ctx context.Context, node ast.StmtNode) (stmt.Statement, error) {
if optimizer.IsSupported(node) {
ast.SetFlag(node)
if err := optimizer.Validate(node, false); err != nil {
return nil, errors.Trace(err)
}
is := sessionctx.GetDomain(ctx).InfoSchema()
if err := optimizer.ResolveName(node, is, ctx); err != nil {
return nil, errors.Trace(err)
}
p, err := optimizer.Optimize(ctx, node)
if err != nil {
return nil, errors.Trace(err)
}
sa := &statementAdapter{
is: is,
plan: p,
}
return sa, nil
}
c.converter = &converter.Converter{}
s, err := c.converter.Convert(node)
if err != nil {
return nil, errors.Trace(err)
}
return s, nil
}
// Compile compiles an ast.StmtNode to a stmt.Statement.
// If it is supported to use new plan and executer, it optimizes the node to
// a plan, and we wrap the plan in an adapter as stmt.Statement.
// If it is not supported, the node will be converted to old statement.
func (c *Compiler) Compile(ctx context.Context, node ast.StmtNode) (stmt.Statement, error) {
if optimizer.IsSupported(node) {
ast.SetFlag(node)
is := sessionctx.GetDomain(ctx).InfoSchema()
if err := optimizer.Preprocess(node, is, ctx); err != nil {
return nil, errors.Trace(err)
}
// Validate should be after NameResolve.
if err := optimizer.Validate(node, false); err != nil {
return nil, errors.Trace(err)
}
sb := NewSubQueryBuilder(is)
p, err := optimizer.Optimize(ctx, node, sb)
if err != nil {
return nil, errors.Trace(err)
}
sa := &statementAdapter{
is: is,
plan: p,
}
return sa, nil
}
c.converter = &converter.Converter{}
s, err := c.converter.Convert(node)
if err != nil {
return nil, errors.Trace(err)
}
return s, nil
}
func (s *testValidatorSuite) TestValidator(c *C) {
cases := []struct {
sql string
inPrepare bool
err error
}{
{"select ?", false, parser.ErrSyntax},
{"select ?", true, nil},
{"create table t(id int not null auto_increment default 2, key (id))", true,
errors.New("Invalid default value for 'id'")},
{"create table t(id int not null default 2 auto_increment, key (id))", true,
errors.New("Invalid default value for 'id'")},
{"create table t(id int not null auto_increment)", true,
errors.New("Incorrect table definition; there can be only one auto column and it must be defined as a key")},
{"create table t(id int not null auto_increment, c int auto_increment, key (id, c))", true,
errors.New("Incorrect table definition; there can be only one auto column and it must be defined as a key")},
{"create table t(id int not null auto_increment, c int, key (c, id))", true,
errors.New("Incorrect table definition; there can be only one auto column and it must be defined as a key")},
{"create table t(id decimal auto_increment, key (id))", true,
errors.New("Incorrect column specifier for column 'id'")},
{"create table t(id float auto_increment, key (id))", true, nil},
}
store, err := tidb.NewStore(tidb.EngineGoLevelDBMemory)
c.Assert(err, IsNil)
se, err := tidb.CreateSession(store)
c.Assert(err, IsNil)
for _, ca := range cases {
stmts, err1 := tidb.Parse(se.(context.Context), ca.sql)
c.Assert(err1, IsNil)
c.Assert(stmts, HasLen, 1)
stmt := stmts[0]
err = optimizer.Validate(stmt, ca.inPrepare)
c.Assert(terror.ErrorEqual(err, ca.err), IsTrue)
}
}
func (s *testValidatorSuite) TestValidator(c *C) {
cases := []struct {
sql string
inPrepare bool
err error
}{
{"select ?", false, parser.ErrSyntax},
{"select ?", true, nil},
}
store, err := tidb.NewStore(tidb.EngineGoLevelDBMemory)
c.Assert(err, IsNil)
se, err := tidb.CreateSession(store)
c.Assert(err, IsNil)
for _, ca := range cases {
stmts, err1 := tidb.Parse(se.(context.Context), ca.sql)
c.Assert(err1, IsNil)
c.Assert(stmts, HasLen, 1)
stmt := stmts[0]
err = optimizer.Validate(stmt, ca.inPrepare)
c.Assert(terror.ErrorEqual(err, ca.err), IsTrue)
}
}
