query

package
v3.0.0 Latest Latest
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 Go to latest Published: May 25, 2022 License: Apache-2.0 Imports: 18 Imported by: 0

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Index

Constants

View Source 
const (
	BETWEEN    = "BETWEEN"
	NOTBETWEEN = "NOT BETWEEN"
	IN         = "IN"
	NOTIN      = "NOT IN"
	AND        = "AND"
	OR         = "OR"
	ISNULL     = "IS NULL"
	ISNOTNULL  = "IS NOT NULL"
	EQUAL      = "="
	NOTEQUAL   = "!="
	LIKE       = "LIKE"
	JOIN       = "JOIN"
	INNERJOIN  = "INNER JOIN"
	LEFTJOIN   = "LEFT JOIN"
	RIGHTJOIN  = "RIGHT JOIN"
	UNION      = "UNION"
	UNIONALL   = "UNION ALL"
	DESC       = "DESC"
	ASC        = "ASC"
)

Variables

This section is empty.

Functions

func NewSqlConn 

func NewSqlConn(driverName, server string, opt *Opt) (*sql.DB, error)

Types

type BatchError 

type BatchError struct {
	// contains filtered or unexported fields
}

A BatchError is an error that can hold multiple errors.

func (*BatchError) Add 

func (be *BatchError) Add(err error)

Add adds err to be.

func (*BatchError) Err 

func (be *BatchError) Err() error

Err returns an error that represents all errors.

func (*BatchError) NotNil 

func (be *BatchError) NotNil() bool

NotNil checks if any error inside.

type Connection 

type Connection interface {
	Exec(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
	Query(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
	NewQuery(ctx context.Context) *QueryBuilder
	SqlRaw() string
	LastSql(query string, args ...interface{})
}

Connection 链接

type Epr 

type Epr struct {
	// contains filtered or unexported fields
}

func NewEpr 

func NewEpr(value string) Epr

func (Epr) ToString 

func (e Epr) ToString() string

type Grammar 

type Grammar struct {
	// contains filtered or unexported fields
}

Grammar sql 语法

func (Grammar) Delete 

func (g Grammar) Delete() string

func (Grammar) Insert 

func (g Grammar) Insert() string

func (Grammar) InsertUpdate 

func (g Grammar) InsertUpdate() string

func (Grammar) Replace 

func (g Grammar) Replace() string

func (Grammar) Select 

func (g Grammar) Select() string

Select 构造select

func (Grammar) ToSql 

func (g Grammar) ToSql() string

func (Grammar) Update 

func (g Grammar) Update() string

type NullBool 

type NullBool struct{ sql.NullBool }

func NewBool 

func NewBool(b bool) NullBool

func NewNullBool 

func NewNullBool() NullBool

func (NullBool) Convert 

func (n NullBool) Convert() string

func (NullBool) IsEmpty 

func (n NullBool) IsEmpty() bool

func (NullBool) IsValid 

func (n NullBool) IsValid() bool

func (NullBool) MarshalJSON 

func (nb NullBool) MarshalJSON() ([]byte, error)

func (NullBool) Result 

func (ns NullBool) Result() interface{}

func (*NullBool) UnmarshalJSON 

func (nb *NullBool) UnmarshalJSON(b []byte) error

type NullDate 

type NullDate struct {
	sql.NullString
}

NullDate 空字符串

func NewDate 

func NewDate(s interface{}) NullDate

func NewNullDate 

func NewNullDate() NullDate

func (NullDate) IsEmpty 

func (ns NullDate) IsEmpty() bool

func (NullDate) IsValid 

func (ns NullDate) IsValid() bool

func (NullDate) MarshalJSON 

func (ns NullDate) MarshalJSON() ([]byte, error)

func (NullDate) Result 

func (ns NullDate) Result() interface{}

func (*NullDate) Scan 

func (nt *NullDate) Scan(value interface{}) error

func (*NullDate) UnmarshalJSON 

func (ns *NullDate) UnmarshalJSON(b []byte) error

type NullDateTime 

type NullDateTime struct {
	sql.NullString
}

NullDate 空字符串

func NewDateTime 

func NewDateTime(s interface{}) NullDateTime

func NewNullDateTime 

func NewNullDateTime() NullDateTime

func (NullDateTime) IsEmpty 

func (ns NullDateTime) IsEmpty() bool

func (NullDateTime) IsValid 

func (ns NullDateTime) IsValid() bool

func (NullDateTime) MarshalJSON 

func (ns NullDateTime) MarshalJSON() ([]byte, error)

func (NullDateTime) Result 

func (ns NullDateTime) Result() interface{}

func (*NullDateTime) Scan 

func (nt *NullDateTime) Scan(value interface{}) error

func (*NullDateTime) UnmarshalJSON 

func (ns *NullDateTime) UnmarshalJSON(b []byte) error

type NullFloat64 

type NullFloat64 struct{ sql.NullFloat64 }

func NewFloat64 

func NewFloat64(f float64) NullFloat64

func NewNullFloat64 

func NewNullFloat64() NullFloat64

func (NullFloat64) Convert 

func (n NullFloat64) Convert() string

func (NullFloat64) IsEmpty 

func (n NullFloat64) IsEmpty() bool

func (NullFloat64) IsValid 

func (n NullFloat64) IsValid() bool

func (NullFloat64) MarshalJSON 

func (nf NullFloat64) MarshalJSON() ([]byte, error)

func (NullFloat64) Result 

func (ns NullFloat64) Result() interface{}

func (*NullFloat64) UnmarshalJSON 

func (nf *NullFloat64) UnmarshalJSON(b []byte) error

type NullInt32 

type NullInt32 struct{ sql.NullInt32 }

func NewInt32 

func NewInt32(i int32) NullInt32

func NewNullInt32 

func NewNullInt32() NullInt32

func (NullInt32) Convert 

func (n NullInt32) Convert() string

func (NullInt32) IsEmpty 

func (n NullInt32) IsEmpty() bool

func (NullInt32) IsValid 

func (n NullInt32) IsValid() bool

func (NullInt32) MarshalJSON 

func (ni NullInt32) MarshalJSON() ([]byte, error)

func (NullInt32) Result 

func (ns NullInt32) Result() interface{}

func (*NullInt32) UnmarshalJSON 

func (ni *NullInt32) UnmarshalJSON(b []byte) error

type NullInt64 

type NullInt64 struct{ sql.NullInt64 }

func NewInt64 

func NewInt64(i int64) NullInt64

func NewNullInt64 

func NewNullInt64() NullInt64

func (NullInt64) Convert 

func (n NullInt64) Convert() string

func (NullInt64) IsEmpty 

func (n NullInt64) IsEmpty() bool

func (NullInt64) IsValid 

func (n NullInt64) IsValid() bool

func (NullInt64) MarshalJSON 

func (ni NullInt64) MarshalJSON() ([]byte, error)

func (NullInt64) Result 

func (ns NullInt64) Result() interface{}

func (*NullInt64) UnmarshalJSON 

func (ni *NullInt64) UnmarshalJSON(b []byte) error

type NullString 

type NullString struct {
	sql.NullString
}

NullString 空字符串

func NewNullString 

func NewNullString() NullString

func NewString 

func NewString(s string) NullString

func (NullString) Convert 

func (n NullString) Convert() string

func (NullString) IsEmpty 

func (ns NullString) IsEmpty() bool

func (NullString) IsValid 

func (ns NullString) IsValid() bool

func (NullString) MarshalJSON 

func (ns NullString) MarshalJSON() ([]byte, error)

func (NullString) Result 

func (ns NullString) Result() interface{}

func (*NullString) UnmarshalJSON 

func (ns *NullString) UnmarshalJSON(b []byte) error

type NullTime 

type NullTime struct {
	sql.NullString
}

NullTime 空字符串

func NewNullTime 

func NewNullTime() NullTime

func NewTime 

func NewTime(s interface{}) NullTime

func (NullTime) IsEmpty 

func (ns NullTime) IsEmpty() bool

func (NullTime) IsValid 

func (ns NullTime) IsValid() bool

func (NullTime) MarshalJSON 

func (ns NullTime) MarshalJSON() ([]byte, error)

func (NullTime) Result 

func (ns NullTime) Result() interface{}

func (*NullTime) Scan 

func (nt *NullTime) Scan(value interface{}) error

func (*NullTime) UnmarshalJSON 

func (ns *NullTime) UnmarshalJSON(b []byte) error

type NullTimeStamp 

type NullTimeStamp struct {
	sql.NullString
}

NullYear 空字符串

func NewNullTimeStamp 

func NewNullTimeStamp() NullTimeStamp

func NewTimeStamp 

func NewTimeStamp(s interface{}) NullTimeStamp

func (NullTimeStamp) IsEmpty 

func (ns NullTimeStamp) IsEmpty() bool

func (NullTimeStamp) IsValid 

func (ns NullTimeStamp) IsValid() bool

func (NullTimeStamp) MarshalJSON 

func (ns NullTimeStamp) MarshalJSON() ([]byte, error)

func (NullTimeStamp) Result 

func (ns NullTimeStamp) Result() interface{}

func (*NullTimeStamp) Scan 

func (nt *NullTimeStamp) Scan(value interface{}) error

func (*NullTimeStamp) UnmarshalJSON 

func (ns *NullTimeStamp) UnmarshalJSON(b []byte) error

type NullYear 

type NullYear struct {
	sql.NullString
}

NullYear 空字符串

func NewNullYear 

func NewNullYear() NullYear

func NewYear 

func NewYear(s interface{}) NullYear

func (NullYear) IsEmpty 

func (ns NullYear) IsEmpty() bool

func (NullYear) IsValid 

func (ns NullYear) IsValid() bool

func (NullYear) MarshalJSON 

func (ns NullYear) MarshalJSON() ([]byte, error)

func (NullYear) Result 

func (ns NullYear) Result() interface{}

func (*NullYear) Scan 

func (nt *NullYear) Scan(value interface{}) error

func (*NullYear) UnmarshalJSON 

func (ns *NullYear) UnmarshalJSON(b []byte) error

type Nullable 

type Nullable interface {
	IsEmpty() bool
	IsValid() bool
}

type Opt 

type Opt struct {
	MaxLifetime  time.Duration //连接池里面的连接最大存活时长
	MaxIdleTime  time.Duration //连接池里面的连接最大空闲时长
	MaxOpenConns int           //连接池最多同时打开的连接数
	MaxIdleConns int           //连接池里最大空闲连接数。必须要比maxOpenConns小
}

type QueryBuilder 

type QueryBuilder struct {
	// contains filtered or unexported fields
}

QueryBuilder 查询构造器

func (*QueryBuilder) Between 

func (query *QueryBuilder) Between(column string, value1 interface{}, value2 interface{}) *QueryBuilder

Between 构造Between

func (*QueryBuilder) Count 

func (query *QueryBuilder) Count() (int64, error)

Count ...

func (*QueryBuilder) Delete 

func (query *QueryBuilder) Delete() (int64, error)

Delete .

func (*QueryBuilder) DeleteSQL 

func (query *QueryBuilder) DeleteSQL() string

DeleteSQL .

func (*QueryBuilder) Distinct 

func (query *QueryBuilder) Distinct() *QueryBuilder

Distinct .

func (*QueryBuilder) Equal 

func (query *QueryBuilder) Equal(column string, value interface{}) *QueryBuilder

Equal 构造等于

func (*QueryBuilder) Exec 

func (query *QueryBuilder) Exec(sql string, args ...interface{}) (int64, error)

Exec 原始SQl语句执行

func (*QueryBuilder) ExecSQL 

func (query *QueryBuilder) ExecSQL(sql string, args ...interface{}) string

ExecSQL 原始SQl语句执行

func (*QueryBuilder) GroupBy 

func (query *QueryBuilder) GroupBy(groups ...string) *QueryBuilder

GroupBy .

func (*QueryBuilder) In 

func (query *QueryBuilder) In(column string, value ...interface{}) *QueryBuilder

In 构造 in语句

func (*QueryBuilder) InnerJoin 

func (query *QueryBuilder) InnerJoin(tablename string, on string) *QueryBuilder

func (*QueryBuilder) Insert 

func (query *QueryBuilder) Insert(data interface{}) (int64, error)

Insert 插入数据

func (*QueryBuilder) InsertSQL 

func (query *QueryBuilder) InsertSQL(data interface{}) string

InsertSQL 获取SQL语句

func (*QueryBuilder) InsertUpdate 

func (query *QueryBuilder) InsertUpdate(insert interface{}, update interface{}) (int64, error)

InsertUpdate ...

func (*QueryBuilder) InsertUpdateSQL 

func (query *QueryBuilder) InsertUpdateSQL(insert interface{}, update interface{}) string

InsertUpdateSQL ...

func (*QueryBuilder) IsNULL 

func (query *QueryBuilder) IsNULL(column string) *QueryBuilder

IsNULL .

func (*QueryBuilder) IsNotNULL 

func (query *QueryBuilder) IsNotNULL(column string) *QueryBuilder

IsNotNULL .

func (*QueryBuilder) IsZero 

func (query *QueryBuilder) IsZero(v reflect.Value) bool

func (*QueryBuilder) Join 

func (query *QueryBuilder) Join(tablename string, on string) *QueryBuilder

Join .

func (*QueryBuilder) LeftJoin 

func (query *QueryBuilder) LeftJoin(tablename string, on string) *QueryBuilder

LeftJoin .

func (*QueryBuilder) Like 

func (query *QueryBuilder) Like(column string, value interface{}) *QueryBuilder

Like .

func (*QueryBuilder) Limit 

func (query *QueryBuilder) Limit(limit int64) *QueryBuilder

Limit .

func (*QueryBuilder) MultiInsert 

func (query *QueryBuilder) MultiInsert(datas ...interface{}) (int64, error)

MultiInsert 批量插入

func (*QueryBuilder) MultiInsertSQL 

func (query *QueryBuilder) MultiInsertSQL(datas ...interface{}) string

MultiInsertSQL 批量插入

func (*QueryBuilder) NotBetween 

func (query *QueryBuilder) NotBetween(column string, value1 interface{}, value2 interface{}) *QueryBuilder

NotBetween 构造不Not Between

func (*QueryBuilder) NotEqual 

func (query *QueryBuilder) NotEqual(column string, value interface{}) *QueryBuilder

NotEqual 构造不等于

func (*QueryBuilder) NotIn 

func (query *QueryBuilder) NotIn(column string, value ...interface{}) *QueryBuilder

NotIn .

func (*QueryBuilder) NotOrBetween 

func (query *QueryBuilder) NotOrBetween(column string, value1 interface{}, value2 interface{}) *QueryBuilder

NotOrBetween 构造 Not Between OR Not Between

func (*QueryBuilder) Offset 

func (query *QueryBuilder) Offset(offset int64) *QueryBuilder

Offset .

func (*QueryBuilder) OrBetween 

func (query *QueryBuilder) OrBetween(column string, value1 interface{}, value2 interface{}) *QueryBuilder

OrBetween 构造 或者 Between

func (*QueryBuilder) OrEqual 

func (query *QueryBuilder) OrEqual(column string, value interface{}) *QueryBuilder

OrEqual 构造或者等于

func (*QueryBuilder) OrIn 

func (query *QueryBuilder) OrIn(column string, value ...interface{}) *QueryBuilder

OrIn orin语句

func (*QueryBuilder) OrIsNULL 

func (query *QueryBuilder) OrIsNULL(column string) *QueryBuilder

OrIsNULL .

func (*QueryBuilder) OrIsNotNULL 

func (query *QueryBuilder) OrIsNotNULL(column string) *QueryBuilder

OrIsNotNULL .

func (*QueryBuilder) OrLike 

func (query *QueryBuilder) OrLike(column string, value interface{}) *QueryBuilder

OrLike .

func (*QueryBuilder) OrNotEqual 

func (query *QueryBuilder) OrNotEqual(column string, value interface{}) *QueryBuilder

OrNotEqual 构造或者不等于

func (*QueryBuilder) OrNotIn 

func (query *QueryBuilder) OrNotIn(column string, value ...interface{}) *QueryBuilder

OrNotIn .

func (*QueryBuilder) OrWhere 

func (query *QueryBuilder) OrWhere(column string, value ...interface{}) *QueryBuilder

OrWhere 构造OR条件

func (*QueryBuilder) OrderBy 

func (query *QueryBuilder) OrderBy(column string, direction string) *QueryBuilder

OrderBy .

func (*QueryBuilder) QueryRow 

func (query *QueryBuilder) QueryRow(sql string, args ...interface{}) *Row

QueryRow ...

func (*QueryBuilder) QueryRowSQL 

func (query *QueryBuilder) QueryRowSQL(sql string, args ...interface{}) string

QueryRowSQL ...

func (*QueryBuilder) QueryRows 

func (query *QueryBuilder) QueryRows(sql string, args ...interface{}) *Rows

QueryRows ...

func (*QueryBuilder) QueryRowsSQL 

func (query *QueryBuilder) QueryRowsSQL(sql string, args ...interface{}) string

QueryRowsSQL ...

func (*QueryBuilder) Replace 

func (query *QueryBuilder) Replace(datas ...interface{}) (int64, error)

Replace 替换

func (*QueryBuilder) ReplaceSQL 

func (query *QueryBuilder) ReplaceSQL(datas ...interface{}) string

ReplaceSQL 替换

func (*QueryBuilder) RightJoin 

func (query *QueryBuilder) RightJoin(tablename string, on string) *QueryBuilder

RightJoin .

func (*QueryBuilder) Row 

func (query *QueryBuilder) Row() *Row

Row 获取一条记录

func (*QueryBuilder) RowSQL 

func (query *QueryBuilder) RowSQL() string

RowSQL ...

func (*QueryBuilder) Rows 

func (query *QueryBuilder) Rows() *Rows

Rows 获取多条记录

func (*QueryBuilder) RowsSQL 

func (query *QueryBuilder) RowsSQL() string

RowsSQL ...

func (*QueryBuilder) Select 

func (query *QueryBuilder) Select(columns ...string) *QueryBuilder

Select 查询字段

func (*QueryBuilder) Skip 

func (query *QueryBuilder) Skip(offset int64) *QueryBuilder

Skip .

func (*QueryBuilder) Table 

func (query *QueryBuilder) Table(tablename ...string) *QueryBuilder

Table 设置操作的表名称

func (*QueryBuilder) ToSql 

func (query *QueryBuilder) ToSql(method string) string

ToSql 输出SQL语句

func (*QueryBuilder) Union 

func (query *QueryBuilder) Union(unions ...QueryBuilder) *QueryBuilder

Union .

func (*QueryBuilder) UnionAll 

func (query *QueryBuilder) UnionAll(unions ...QueryBuilder) *QueryBuilder

UnionAll .

func (*QueryBuilder) UnionLimit 

func (query *QueryBuilder) UnionLimit(limit int64) *QueryBuilder

UnionLimit .

func (*QueryBuilder) UnionOffset 

func (query *QueryBuilder) UnionOffset(offset int64) *QueryBuilder

UnionOffset .

func (*QueryBuilder) UnionOrderBy 

func (query *QueryBuilder) UnionOrderBy(column string, direction string) *QueryBuilder

UnionOrderBy .

func (*QueryBuilder) Update 

func (query *QueryBuilder) Update(data interface{}) (int64, error)

Update 更新

func (*QueryBuilder) UpdateSQL 

func (query *QueryBuilder) UpdateSQL(data interface{}) string

UpdateSQL 更新

func (*QueryBuilder) Where 

func (query *QueryBuilder) Where(column string, value ...interface{}) *QueryBuilder

Where 构造条件语句

type QueryDb 

type QueryDb struct {
	DB            *sql.DB
	Sql           Sql
	DriverName    string
	DisableMetric bool // 关闭指标采集
	DisableTrace  bool // 关闭链路追踪
	Prepare       bool
	DBName        string
	Addr          string
}

QueryDb mysql 配置

func (*QueryDb) Begin 

func (querydb *QueryDb) Begin() (*QueryTx, error)

Begin 开启一个事务

func (*QueryDb) Exec 

func (querydb *QueryDb) Exec(ctx context.Context, query string, args ...interface{}) (sql.Result, error)

Exec 复用执行语句

func (*QueryDb) LastSql 

func (querydb *QueryDb) LastSql(query string, args ...interface{})

func (*QueryDb) NewQuery 

func (querydb *QueryDb) NewQuery(ctx context.Context) *QueryBuilder

NewQuery 生成一个新的查询构造器

func (*QueryDb) Query 

func (querydb *QueryDb) Query(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)

Query 复用查询语句

func (*QueryDb) SqlRaw 

func (querydb *QueryDb) SqlRaw() string

type QueryTx 

type QueryTx struct {
	TX            *sql.Tx
	Sql           Sql
	DriverName    string
	DisableMetric bool // 关闭指标采集
	DisableTrace  bool // 关闭链路追踪
	Prepare       bool
	DBName        string
	Addr          string
}

QueryTx 事务

func (*QueryTx) Commit 

func (querytx *QueryTx) Commit() error

Commit 事务提交

func (*QueryTx) Exec 

func (querytx *QueryTx) Exec(ctx context.Context, query string, args ...interface{}) (sql.Result, error)

Exec 复用执行语句

func (*QueryTx) LastSql 

func (querytx *QueryTx) LastSql(query string, args ...interface{})

func (*QueryTx) NewQuery 

func (querytx *QueryTx) NewQuery(ctx context.Context) *QueryBuilder

NewQuery 生成一个新的查询构造器

func (*QueryTx) Query 

func (querytx *QueryTx) Query(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)

Query 复用查询语句

func (*QueryTx) Rollback 

func (querytx *QueryTx) Rollback() error

Rollback 事务回滚

func (*QueryTx) SqlRaw 

func (querytx *QueryTx) SqlRaw() string

type ResourceManager 

type ResourceManager struct {
	// contains filtered or unexported fields
}

A ResourceManager is a manager that used to manage resources.

func NewResourceManager 

func NewResourceManager() *ResourceManager

NewResourceManager returns a ResourceManager.

func (*ResourceManager) Close 

func (manager *ResourceManager) Close() error

Close closes the manager. Don't use the ResourceManager after Close() called.

func (*ResourceManager) GetResource 

func (manager *ResourceManager) GetResource(key string, create func() (io.Closer, error)) (io.Closer, error)

GetResource returns the resource associated with given key.

type Row 

type Row struct {
	// contains filtered or unexported fields
}

Row 获取记录

func (*Row) ToArray 

func (r *Row) ToArray() (result []string, err error)

ToArray get Array

func (*Row) ToInterface 

func (r *Row) ToInterface() (result map[string]interface{}, err error)

func (*Row) ToMap 

func (r *Row) ToMap() (result map[string]string, err error)

ToMap get Map

func (*Row) ToStruct 

func (r *Row) ToStruct(st interface{}) error

ToStruct get Struct

type Rows 

type Rows struct {
	// contains filtered or unexported fields
}

Rows get data

func (*Rows) ToArray 

func (r *Rows) ToArray() (data [][]string, err error)

ToArray get Array

func (*Rows) ToInterface 

func (r *Rows) ToInterface() (data []map[string]interface{}, err error)

ToInterface []map[interface{}]interface{}

func (*Rows) ToMap 

func (r *Rows) ToMap() (data []map[string]string, err error)

ToMap get Map

func (*Rows) ToStruct 

func (r *Rows) ToStruct(st interface{}) error

ToStruct get Struct

type SharedCalls 

type SharedCalls = SingleFlight

SharedCalls is an alias of SingleFlight. Deprecated: use SingleFlight.

type SingleFlight 

type SingleFlight interface {
	Do(key string, fn func() (interface{}, error)) (interface{}, error)
	DoEx(key string, fn func() (interface{}, error)) (interface{}, bool, error)
}

SingleFlight lets the concurrent calls with the same key to share the call result. For example, A called F, before it's done, B called F. Then B would not execute F, and shared the result returned by F which called by A. The calls with the same key are dependent, concurrent calls share the returned values. A ------->calls F with key<------------------->returns val B --------------------->calls F with key------>returns val

func NewSharedCalls 

func NewSharedCalls() SingleFlight

NewSharedCalls returns a SingleFlight. Deprecated: use NewSingleFlight.

func NewSingleFlight 

func NewSingleFlight() SingleFlight

NewSingleFlight returns a SingleFlight.

type Sql 

type Sql struct {
	Sql      string
	Args     []interface{}
	CostTime time.Duration
}

Sql sql语句

func (Sql) ToJson 

func (sql Sql) ToJson() string

ToJson sql语句转出json

func (Sql) ToString 

func (sqlRaw Sql) ToString() string

ToString sql语句转出string

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