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field_type_test.go
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// Copyright 2015 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
. "github.com/pingcap/check"
"github.com/pingcap/parser/charset"
"github.com/pingcap/parser/mysql"
"github.com/pingcap/tidb/util/testleak"
)
var _ = Suite(&testFieldTypeSuite{})
type testFieldTypeSuite struct {
}
func (s *testFieldTypeSuite) TestFieldType(c *C) {
defer testleak.AfterTest(c)()
ft := NewFieldType(mysql.TypeDuration)
c.Assert(ft.Flen, Equals, UnspecifiedLength)
c.Assert(ft.Decimal, Equals, UnspecifiedLength)
ft.Decimal = 5
c.Assert(ft.String(), Equals, "time(5)")
ft = NewFieldType(mysql.TypeLong)
ft.Flen = 5
ft.Flag = mysql.UnsignedFlag | mysql.ZerofillFlag
c.Assert(ft.String(), Equals, "int(5) UNSIGNED ZEROFILL")
c.Assert(ft.InfoSchemaStr(), Equals, "int(5) unsigned")
ft = NewFieldType(mysql.TypeFloat)
ft.Flen = 12 // Default
ft.Decimal = 3 // Not Default
c.Assert(ft.String(), Equals, "float(12,3)")
ft = NewFieldType(mysql.TypeFloat)
ft.Flen = 12 // Default
ft.Decimal = -1 // Default
c.Assert(ft.String(), Equals, "float")
ft = NewFieldType(mysql.TypeFloat)
ft.Flen = 5 // Not Default
ft.Decimal = -1 // Default
c.Assert(ft.String(), Equals, "float")
ft = NewFieldType(mysql.TypeFloat)
ft.Flen = 7 // Not Default
ft.Decimal = 3 // Not Default
c.Assert(ft.String(), Equals, "float(7,3)")
ft = NewFieldType(mysql.TypeDouble)
ft.Flen = 22 // Default
ft.Decimal = 3 // Not Default
c.Assert(ft.String(), Equals, "double(22,3)")
ft = NewFieldType(mysql.TypeDouble)
ft.Flen = 22 // Default
ft.Decimal = -1 // Default
c.Assert(ft.String(), Equals, "double")
ft = NewFieldType(mysql.TypeDouble)
ft.Flen = 5 // Not Default
ft.Decimal = -1 // Default
c.Assert(ft.String(), Equals, "double")
ft = NewFieldType(mysql.TypeDouble)
ft.Flen = 7 // Not Default
ft.Decimal = 3 // Not Default
c.Assert(ft.String(), Equals, "double(7,3)")
ft = NewFieldType(mysql.TypeBlob)
ft.Flen = 10
ft.Charset = "UTF8"
ft.Collate = "UTF8_UNICODE_GI"
c.Assert(ft.String(), Equals, "text CHARACTER SET UTF8 COLLATE UTF8_UNICODE_GI")
ft = NewFieldType(mysql.TypeVarchar)
ft.Flen = 10
ft.Flag |= mysql.BinaryFlag
c.Assert(ft.String(), Equals, "varchar(10) BINARY")
ft = NewFieldType(mysql.TypeString)
ft.Charset = charset.CollationBin
ft.Flag |= mysql.BinaryFlag
c.Assert(ft.String(), Equals, "binary(1)")
ft = NewFieldType(mysql.TypeEnum)
ft.Elems = []string{"a", "b"}
c.Assert(ft.String(), Equals, "enum('a','b')")
ft = NewFieldType(mysql.TypeEnum)
ft.Elems = []string{"'a'", "'b'"}
c.Assert(ft.String(), Equals, "enum('''a''','''b''')")
ft = NewFieldType(mysql.TypeEnum)
ft.Elems = []string{"a\nb", "a\tb", "a\rb"}
c.Assert(ft.String(), Equals, "enum('a\\nb','a\tb','a\\rb')")
ft = NewFieldType(mysql.TypeEnum)
ft.Elems = []string{"a\nb", "a'\t\r\nb", "a\rb"}
c.Assert(ft.String(), Equals, "enum('a\\nb','a'' \\r\\nb','a\\rb')")
ft = NewFieldType(mysql.TypeSet)
ft.Elems = []string{"a", "b"}
c.Assert(ft.String(), Equals, "set('a','b')")
ft = NewFieldType(mysql.TypeSet)
ft.Elems = []string{"'a'", "'b'"}
c.Assert(ft.String(), Equals, "set('''a''','''b''')")
ft = NewFieldType(mysql.TypeSet)
ft.Elems = []string{"a\nb", "a'\t\r\nb", "a\rb"}
c.Assert(ft.String(), Equals, "set('a\\nb','a'' \\r\\nb','a\\rb')")
ft = NewFieldType(mysql.TypeSet)
ft.Elems = []string{"a'\nb", "a'b\tc"}
c.Assert(ft.String(), Equals, "set('a''\\nb','a''b c')")
ft = NewFieldType(mysql.TypeTimestamp)
ft.Flen = 8
ft.Decimal = 2
c.Assert(ft.String(), Equals, "timestamp(2)")
ft = NewFieldType(mysql.TypeTimestamp)
ft.Flen = 8
ft.Decimal = 0
c.Assert(ft.String(), Equals, "timestamp")
ft = NewFieldType(mysql.TypeDatetime)
ft.Flen = 8
ft.Decimal = 2
c.Assert(ft.String(), Equals, "datetime(2)")
ft = NewFieldType(mysql.TypeDatetime)
ft.Flen = 8
ft.Decimal = 0
c.Assert(ft.String(), Equals, "datetime")
ft = NewFieldType(mysql.TypeDate)
ft.Flen = 8
ft.Decimal = 2
c.Assert(ft.String(), Equals, "date")
ft = NewFieldType(mysql.TypeDate)
ft.Flen = 8
ft.Decimal = 0
c.Assert(ft.String(), Equals, "date")
ft = NewFieldType(mysql.TypeYear)
ft.Flen = 4
ft.Decimal = 0
c.Assert(ft.String(), Equals, "year")
ft = NewFieldType(mysql.TypeYear)
ft.Flen = 2
ft.Decimal = 2
c.Assert(ft.String(), Equals, "year") // Note: Invalid year.
}
func (s *testFieldTypeSuite) TestDefaultTypeForValue(c *C) {
defer testleak.AfterTest(c)()
tests := []struct {
value interface{}
tp byte
flen int
decimal int
charset string
collation string
flag uint
}{
{nil, mysql.TypeNull, 0, 0, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag},
{1, mysql.TypeLonglong, 1, 0, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag},
{uint64(1), mysql.TypeLonglong, 1, 0, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag | mysql.UnsignedFlag},
{"abc", mysql.TypeVarString, 3, UnspecifiedLength, charset.CharsetUTF8MB4, charset.CollationUTF8MB4, 0},
{1.1, mysql.TypeDouble, 3, -1, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag},
{[]byte("abc"), mysql.TypeBlob, 3, UnspecifiedLength, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag},
{HexLiteral{}, mysql.TypeVarString, 0, 0, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag | mysql.UnsignedFlag},
{BitLiteral{}, mysql.TypeVarString, 0, 0, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag},
{Time{Type: mysql.TypeDatetime}, mysql.TypeDatetime, 19, 0, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag},
{Time{
Time: FromDate(2017, 12, 12, 12, 59, 59, 0),
Type: mysql.TypeDatetime,
Fsp: 3}, mysql.TypeDatetime, 23, 3, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag},
{Duration{}, mysql.TypeDuration, 8, 0, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag},
{&MyDecimal{}, mysql.TypeNewDecimal, 1, 0, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag},
{Enum{Name: "a", Value: 1}, mysql.TypeEnum, 1, UnspecifiedLength, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag},
{Set{Name: "a", Value: 1}, mysql.TypeSet, 1, UnspecifiedLength, charset.CharsetBin, charset.CharsetBin, mysql.BinaryFlag},
}
for _, tt := range tests {
var ft FieldType
DefaultTypeForValue(tt.value, &ft)
c.Assert(ft.Tp, Equals, tt.tp, Commentf("%v %v", ft.Tp, tt.tp))
c.Assert(ft.Flen, Equals, tt.flen, Commentf("%v %v", ft.Flen, tt.flen))
c.Assert(ft.Charset, Equals, tt.charset, Commentf("%v %v", ft.Charset, tt.charset))
c.Assert(ft.Decimal, Equals, tt.decimal, Commentf("%v %v", ft.Decimal, tt.decimal))
c.Assert(ft.Collate, Equals, tt.collation, Commentf("%v %v", ft.Collate, tt.collation))
c.Assert(ft.Flag, Equals, tt.flag, Commentf("%v %v", ft.Flag, tt.flag))
}
}
func (s *testFieldTypeSuite) TestAggFieldType(c *C) {
defer testleak.AfterTest(c)()
fts := []*FieldType{
NewFieldType(mysql.TypeDecimal),
NewFieldType(mysql.TypeTiny),
NewFieldType(mysql.TypeShort),
NewFieldType(mysql.TypeLong),
NewFieldType(mysql.TypeFloat),
NewFieldType(mysql.TypeDouble),
NewFieldType(mysql.TypeNull),
NewFieldType(mysql.TypeTimestamp),
NewFieldType(mysql.TypeLonglong),
NewFieldType(mysql.TypeInt24),
NewFieldType(mysql.TypeDate),
NewFieldType(mysql.TypeDuration),
NewFieldType(mysql.TypeDatetime),
NewFieldType(mysql.TypeYear),
NewFieldType(mysql.TypeNewDate),
NewFieldType(mysql.TypeVarchar),
NewFieldType(mysql.TypeBit),
NewFieldType(mysql.TypeJSON),
NewFieldType(mysql.TypeNewDecimal),
NewFieldType(mysql.TypeEnum),
NewFieldType(mysql.TypeSet),
NewFieldType(mysql.TypeTinyBlob),
NewFieldType(mysql.TypeMediumBlob),
NewFieldType(mysql.TypeLongBlob),
NewFieldType(mysql.TypeBlob),
NewFieldType(mysql.TypeVarString),
NewFieldType(mysql.TypeString),
NewFieldType(mysql.TypeGeometry),
}
for i := range fts {
aggTp := AggFieldType(fts[i : i+1])
c.Assert(aggTp.Tp, Equals, fts[i].Tp)
aggTp = AggFieldType([]*FieldType{fts[i], fts[i]})
switch fts[i].Tp {
case mysql.TypeDate:
c.Assert(aggTp.Tp, Equals, mysql.TypeDate)
case mysql.TypeJSON:
c.Assert(aggTp.Tp, Equals, mysql.TypeJSON)
case mysql.TypeEnum, mysql.TypeSet, mysql.TypeVarString:
c.Assert(aggTp.Tp, Equals, mysql.TypeVarchar)
case mysql.TypeDecimal:
c.Assert(aggTp.Tp, Equals, mysql.TypeNewDecimal)
default:
c.Assert(aggTp.Tp, Equals, fts[i].Tp)
}
aggTp = AggFieldType([]*FieldType{fts[i], NewFieldType(mysql.TypeLong)})
switch fts[i].Tp {
case mysql.TypeTiny, mysql.TypeShort, mysql.TypeLong,
mysql.TypeYear, mysql.TypeInt24, mysql.TypeNull:
c.Assert(aggTp.Tp, Equals, mysql.TypeLong)
case mysql.TypeLonglong:
c.Assert(aggTp.Tp, Equals, mysql.TypeLonglong)
case mysql.TypeFloat, mysql.TypeDouble:
c.Assert(aggTp.Tp, Equals, mysql.TypeDouble)
case mysql.TypeTimestamp, mysql.TypeDate, mysql.TypeDuration,
mysql.TypeDatetime, mysql.TypeNewDate, mysql.TypeVarchar,
mysql.TypeBit, mysql.TypeJSON, mysql.TypeEnum, mysql.TypeSet,
mysql.TypeVarString, mysql.TypeGeometry:
c.Assert(aggTp.Tp, Equals, mysql.TypeVarchar)
case mysql.TypeString:
c.Assert(aggTp.Tp, Equals, mysql.TypeString)
case mysql.TypeDecimal, mysql.TypeNewDecimal:
c.Assert(aggTp.Tp, Equals, mysql.TypeNewDecimal)
case mysql.TypeTinyBlob:
c.Assert(aggTp.Tp, Equals, mysql.TypeTinyBlob)
case mysql.TypeBlob:
c.Assert(aggTp.Tp, Equals, mysql.TypeBlob)
case mysql.TypeMediumBlob:
c.Assert(aggTp.Tp, Equals, mysql.TypeMediumBlob)
case mysql.TypeLongBlob:
c.Assert(aggTp.Tp, Equals, mysql.TypeLongBlob)
}
aggTp = AggFieldType([]*FieldType{fts[i], NewFieldType(mysql.TypeJSON)})
switch fts[i].Tp {
case mysql.TypeJSON, mysql.TypeNull:
c.Assert(aggTp.Tp, Equals, mysql.TypeJSON)
case mysql.TypeLongBlob, mysql.TypeMediumBlob, mysql.TypeTinyBlob, mysql.TypeBlob:
c.Assert(aggTp.Tp, Equals, mysql.TypeLongBlob)
case mysql.TypeString:
c.Assert(aggTp.Tp, Equals, mysql.TypeString)
default:
c.Assert(aggTp.Tp, Equals, mysql.TypeVarchar)
}
}
}
func (s *testFieldTypeSuite) TestAggregateEvalType(c *C) {
defer testleak.AfterTest(c)()
fts := []*FieldType{
NewFieldType(mysql.TypeDecimal),
NewFieldType(mysql.TypeTiny),
NewFieldType(mysql.TypeShort),
NewFieldType(mysql.TypeLong),
NewFieldType(mysql.TypeFloat),
NewFieldType(mysql.TypeDouble),
NewFieldType(mysql.TypeNull),
NewFieldType(mysql.TypeTimestamp),
NewFieldType(mysql.TypeLonglong),
NewFieldType(mysql.TypeInt24),
NewFieldType(mysql.TypeDate),
NewFieldType(mysql.TypeDuration),
NewFieldType(mysql.TypeDatetime),
NewFieldType(mysql.TypeYear),
NewFieldType(mysql.TypeNewDate),
NewFieldType(mysql.TypeVarchar),
NewFieldType(mysql.TypeBit),
NewFieldType(mysql.TypeJSON),
NewFieldType(mysql.TypeNewDecimal),
NewFieldType(mysql.TypeEnum),
NewFieldType(mysql.TypeSet),
NewFieldType(mysql.TypeTinyBlob),
NewFieldType(mysql.TypeMediumBlob),
NewFieldType(mysql.TypeLongBlob),
NewFieldType(mysql.TypeBlob),
NewFieldType(mysql.TypeVarString),
NewFieldType(mysql.TypeString),
NewFieldType(mysql.TypeGeometry),
}
for i := range fts {
var flag uint
aggregatedEvalType := AggregateEvalType(fts[i:i+1], &flag)
switch fts[i].Tp {
case mysql.TypeDecimal, mysql.TypeNull, mysql.TypeTimestamp, mysql.TypeDate,
mysql.TypeDuration, mysql.TypeDatetime, mysql.TypeNewDate, mysql.TypeVarchar,
mysql.TypeJSON, mysql.TypeEnum, mysql.TypeSet, mysql.TypeTinyBlob,
mysql.TypeMediumBlob, mysql.TypeLongBlob, mysql.TypeBlob,
mysql.TypeVarString, mysql.TypeString, mysql.TypeGeometry:
c.Assert(aggregatedEvalType.IsStringKind(), IsTrue)
c.Assert(flag, Equals, uint(0))
case mysql.TypeTiny, mysql.TypeShort, mysql.TypeLong, mysql.TypeLonglong, mysql.TypeBit,
mysql.TypeInt24, mysql.TypeYear:
c.Assert(aggregatedEvalType, Equals, ETInt)
c.Assert(flag, Equals, uint(mysql.BinaryFlag))
case mysql.TypeFloat, mysql.TypeDouble:
c.Assert(aggregatedEvalType, Equals, ETReal)
c.Assert(flag, Equals, uint(mysql.BinaryFlag))
case mysql.TypeNewDecimal:
c.Assert(aggregatedEvalType, Equals, ETDecimal)
c.Assert(flag, Equals, uint(mysql.BinaryFlag))
}
flag = 0
aggregatedEvalType = AggregateEvalType([]*FieldType{fts[i], fts[i]}, &flag)
switch fts[i].Tp {
case mysql.TypeDecimal, mysql.TypeNull, mysql.TypeTimestamp, mysql.TypeDate,
mysql.TypeDuration, mysql.TypeDatetime, mysql.TypeNewDate, mysql.TypeVarchar,
mysql.TypeJSON, mysql.TypeEnum, mysql.TypeSet, mysql.TypeTinyBlob,
mysql.TypeMediumBlob, mysql.TypeLongBlob, mysql.TypeBlob,
mysql.TypeVarString, mysql.TypeString, mysql.TypeGeometry:
c.Assert(aggregatedEvalType.IsStringKind(), IsTrue)
c.Assert(flag, Equals, uint(0))
case mysql.TypeTiny, mysql.TypeShort, mysql.TypeLong, mysql.TypeLonglong, mysql.TypeBit,
mysql.TypeInt24, mysql.TypeYear:
c.Assert(aggregatedEvalType, Equals, ETInt)
c.Assert(flag, Equals, uint(mysql.BinaryFlag))
case mysql.TypeFloat, mysql.TypeDouble:
c.Assert(aggregatedEvalType, Equals, ETReal)
c.Assert(flag, Equals, uint(mysql.BinaryFlag))
case mysql.TypeNewDecimal:
c.Assert(aggregatedEvalType, Equals, ETDecimal)
c.Assert(flag, Equals, uint(mysql.BinaryFlag))
}
flag = 0
aggregatedEvalType = AggregateEvalType([]*FieldType{fts[i], NewFieldType(mysql.TypeLong)}, &flag)
switch fts[i].Tp {
case mysql.TypeTimestamp, mysql.TypeDate, mysql.TypeDuration,
mysql.TypeDatetime, mysql.TypeNewDate, mysql.TypeVarchar, mysql.TypeJSON,
mysql.TypeEnum, mysql.TypeSet, mysql.TypeTinyBlob, mysql.TypeMediumBlob,
mysql.TypeLongBlob, mysql.TypeBlob, mysql.TypeVarString,
mysql.TypeString, mysql.TypeGeometry:
c.Assert(aggregatedEvalType.IsStringKind(), IsTrue)
c.Assert(flag, Equals, uint(0))
case mysql.TypeDecimal, mysql.TypeTiny, mysql.TypeShort, mysql.TypeLong, mysql.TypeNull, mysql.TypeBit,
mysql.TypeLonglong, mysql.TypeYear, mysql.TypeInt24:
c.Assert(aggregatedEvalType, Equals, ETInt)
c.Assert(flag, Equals, uint(mysql.BinaryFlag))
case mysql.TypeFloat, mysql.TypeDouble:
c.Assert(aggregatedEvalType, Equals, ETReal)
c.Assert(flag, Equals, uint(mysql.BinaryFlag))
case mysql.TypeNewDecimal:
c.Assert(aggregatedEvalType, Equals, ETDecimal)
c.Assert(flag, Equals, uint(mysql.BinaryFlag))
}
}
}