parser

package

v0.0.0-...-c9c7940 Latest Latest Go to latest Published: Sep 20, 2023 License: Apache-2.0 Imports: 8 Imported by: 0

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Repository

github.com/runner-mei/memsql

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Documentation ¶

Index ¶

func ErrUnsupportedExpr(op string) error
func SplitBy(expr sqlparser.Expr, filter ExprFilter) (bool, sqlparser.Expr, error)
func SplitByOr(expr sqlparser.Expr) ([]sqlparser.Expr, error)
func SplitByTableName(expr sqlparser.Expr, tableName, tableAs string) (sqlparser.Expr, error)
func ToFilter(ctx FilterContext, expr sqlparser.Expr) (func(vm.Context) (bool, error), error)
func ToFuncGetValue(ctx FilterContext, expr *sqlparser.FuncExpr) (func(vm.Context) (vm.Value, error), error)
func ToGetSelectValue(ctx FilterContext, expr sqlparser.SelectExpr) (func(vm.Context) (vm.Value, error), error)
func ToGetValue(ctx FilterContext, expr sqlparser.Expr) (func(vm.Context) (vm.Value, error), error)
func ToGetValues(fctx FilterContext, expr sqlparser.SQLNode) (func(vm.Context) ([]vm.Value, error), error)
func ToKeyValue(fctx FilterContext, colName *sqlparser.ColName, expr sqlparser.Expr) (string, string, string, error)
func ToKeyValueArray(ctx vm.Context, iter KeyValueIterator) ([][]memcore.KeyValue, error)
type ExprFilter
- func ByTable(tableName, tableAs string) ExprFilter
- func ByTableTag(tableAs TableAlias) ExprFilter
- func ByTag() ExprFilter
- func (ef *ExprFilter) TableFilter()
type FilterContext
type KeyValueIterator
- func ToEqualValues(fctx FilterContext, expr *sqlparser.ComparisonExpr, qualifier TableAlias) (KeyValueIterator, error)
- func ToInKeyValue(fctx FilterContext, expr *sqlparser.ComparisonExpr) (string, KeyValueIterator, error)
- func ToKeyValues(fctx FilterContext, expr sqlparser.Expr, alias TableAlias, ...) (KeyValueIterator, error)
type StringIterator
- func ToValueLiteral(fctx FilterContext, expr sqlparser.Expr) (StringIterator, error)
type TableAlias

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func ErrUnsupportedExpr ¶

func ErrUnsupportedExpr(op string) error

func SplitBy ¶

func SplitBy(expr sqlparser.Expr, filter ExprFilter) (bool, sqlparser.Expr, error)

func SplitByOr ¶

func SplitByOr(expr sqlparser.Expr) ([]sqlparser.Expr, error)

func SplitByTableName ¶

func SplitByTableName(expr sqlparser.Expr, tableName, tableAs string) (sqlparser.Expr, error)

func ToFilter ¶

func ToFilter(ctx FilterContext, expr sqlparser.Expr) (func(vm.Context) (bool, error), error)

func ToFuncGetValue ¶

func ToFuncGetValue(ctx FilterContext, expr *sqlparser.FuncExpr) (func(vm.Context) (vm.Value, error), error)

func ToGetSelectValue ¶

func ToGetSelectValue(ctx FilterContext, expr sqlparser.SelectExpr) (func(vm.Context) (vm.Value, error), error)

func ToGetValue ¶

func ToGetValue(ctx FilterContext, expr sqlparser.Expr) (func(vm.Context) (vm.Value, error), error)

func ToGetValues ¶

func ToGetValues(fctx FilterContext, expr sqlparser.SQLNode) (func(vm.Context) ([]vm.Value, error), error)

func ToKeyValue ¶

func ToKeyValue(fctx FilterContext, colName *sqlparser.ColName, expr sqlparser.Expr) (string, string, string, error)

func ToKeyValueArray ¶

func ToKeyValueArray(ctx vm.Context, iter KeyValueIterator) ([][]memcore.KeyValue, error)

Types ¶

type ExprFilter ¶

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

func ByTable ¶

func ByTable(tableName, tableAs string) ExprFilter

func ByTableTag ¶

func ByTableTag(tableAs TableAlias) ExprFilter

func ByTag ¶

func ByTag() ExprFilter

func (*ExprFilter) TableFilter ¶

func (ef *ExprFilter) TableFilter()

type FilterContext ¶

type FilterContext interface {
	GetQuery(name string) (*memcore.ReferenceQuery, bool)
	SetResultSet(stmt string, records []memcore.Record)
	GetResultSet(stmt string) ([]memcore.Record, bool)
	ExecuteSelect(sel sqlparser.SelectStatement) (memcore.Query, error)
}

type KeyValueIterator ¶

type KeyValueIterator interface {
	Next(ctx vm.Context) ([]memcore.KeyValue, error)
}

func ToEqualValues ¶

func ToEqualValues(fctx FilterContext, expr *sqlparser.ComparisonExpr, qualifier TableAlias) (KeyValueIterator, error)

func ToInKeyValue ¶

func ToInKeyValue(fctx FilterContext, expr *sqlparser.ComparisonExpr) (string, KeyValueIterator, error)

func ToKeyValues ¶

func ToKeyValues(fctx FilterContext, expr sqlparser.Expr, alias TableAlias, results KeyValueIterator) (KeyValueIterator, error)

type StringIterator ¶

type StringIterator interface {
	Next(ctx vm.Context) (string, error)
}

func ToValueLiteral ¶

func ToValueLiteral(fctx FilterContext, expr sqlparser.Expr) (StringIterator, error)

type TableAlias ¶

type TableAlias = memcore.TableAlias

Source Files ¶

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