137 lines
4.0 KiB
Go
137 lines
4.0 KiB
Go
// Copyright 2015 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package mysql
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// MySQL type informations.
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const (
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TypeDecimal byte = 0
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TypeTiny byte = 1
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TypeShort byte = 2
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TypeLong byte = 3
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TypeFloat byte = 4
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TypeDouble byte = 5
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TypeNull byte = 6
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TypeTimestamp byte = 7
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TypeLonglong byte = 8
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TypeInt24 byte = 9
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TypeDate byte = 10
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/* Original name was TypeTime, renamed to Duration to resolve the conflict with Go type Time.*/
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TypeDuration byte = 11
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TypeDatetime byte = 12
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TypeYear byte = 13
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TypeNewDate byte = 14
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TypeVarchar byte = 15
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TypeBit byte = 16
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TypeNewDecimal byte = 0xf6
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TypeEnum byte = 0xf7
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TypeSet byte = 0xf8
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TypeTinyBlob byte = 0xf9
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TypeMediumBlob byte = 0xfa
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TypeLongBlob byte = 0xfb
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TypeBlob byte = 0xfc
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TypeVarString byte = 0xfd
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TypeString byte = 0xfe
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TypeGeometry byte = 0xff
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)
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// TypeUnspecified is an uninitialized type. TypeDecimal is not used in MySQL.
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const TypeUnspecified = TypeDecimal
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// Flag informations.
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const (
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NotNullFlag = 1 /* Field can't be NULL */
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PriKeyFlag = 2 /* Field is part of a primary key */
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UniqueKeyFlag = 4 /* Field is part of a unique key */
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MultipleKeyFlag = 8 /* Field is part of a key */
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BlobFlag = 16 /* Field is a blob */
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UnsignedFlag = 32 /* Field is unsigned */
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ZerofillFlag = 64 /* Field is zerofill */
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BinaryFlag = 128 /* Field is binary */
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EnumFlag = 256 /* Field is an enum */
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AutoIncrementFlag = 512 /* Field is an auto increment field */
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TimestampFlag = 1024 /* Field is a timestamp */
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SetFlag = 2048 /* Field is a set */
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NoDefaultValueFlag = 4096 /* Field doesn't have a default value */
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OnUpdateNowFlag = 8192 /* Field is set to NOW on UPDATE */
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NumFlag = 32768 /* Field is a num (for clients) */
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PartKeyFlag = 16384 /* Intern: Part of some keys */
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GroupFlag = 32768 /* Intern: Group field */
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UniqueFlag = 65536 /* Intern: Used by sql_yacc */
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BinCmpFlag = 131072 /* Intern: Used by sql_yacc */
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)
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// TypeInt24 bounds.
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const (
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MaxUint24 = 1<<24 - 1
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MaxInt24 = 1<<23 - 1
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MinInt24 = -1 << 23
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)
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// HasNotNullFlag checks if NotNullFlag is set.
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func HasNotNullFlag(flag uint) bool {
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return (flag & NotNullFlag) > 0
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}
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// HasNoDefaultValueFlag checks if NoDefaultValueFlag is set.
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func HasNoDefaultValueFlag(flag uint) bool {
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return (flag & NoDefaultValueFlag) > 0
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}
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// HasAutoIncrementFlag checks if AutoIncrementFlag is set.
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func HasAutoIncrementFlag(flag uint) bool {
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return (flag & AutoIncrementFlag) > 0
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}
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// HasUnsignedFlag checks if UnsignedFlag is set.
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func HasUnsignedFlag(flag uint) bool {
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return (flag & UnsignedFlag) > 0
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}
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// HasZerofillFlag checks if ZerofillFlag is set.
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func HasZerofillFlag(flag uint) bool {
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return (flag & ZerofillFlag) > 0
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}
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// HasBinaryFlag checks if BinaryFlag is set.
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func HasBinaryFlag(flag uint) bool {
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return (flag & BinaryFlag) > 0
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}
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// HasPriKeyFlag checks if PriKeyFlag is set.
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func HasPriKeyFlag(flag uint) bool {
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return (flag & PriKeyFlag) > 0
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}
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// HasUniKeyFlag checks if UniqueKeyFlag is set.
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func HasUniKeyFlag(flag uint) bool {
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return (flag & UniqueKeyFlag) > 0
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}
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// HasMultipleKeyFlag checks if MultipleKeyFlag is set.
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func HasMultipleKeyFlag(flag uint) bool {
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return (flag & MultipleKeyFlag) > 0
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}
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// HasTimestampFlag checks if HasTimestampFlag is set.
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func HasTimestampFlag(flag uint) bool {
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return (flag & TimestampFlag) > 0
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}
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// HasOnUpdateNowFlag checks if OnUpdateNowFlag is set.
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func HasOnUpdateNowFlag(flag uint) bool {
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return (flag & OnUpdateNowFlag) > 0
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}
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