selector

package
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Published: Feb 8, 2017 License: MIT Imports: 4 Imported by: 0

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Types

type Row

type Row interface {
	Field([]byte) []byte
}

Row defines a row of columnar data.

Note that the field name and field values are represented as []byte since stomp header names and values are represented as []byte to avoid extra allocations when converting from []byte to string.

type Selector

type Selector struct {
	*parse.Tree
}

Selector reprents a parsed SQL selector statement.

func Parse

func Parse(b []byte) (selector *Selector, err error)

Parse parses the SQL statement and returns a new Statement object.

func (*Selector) Eval

func (s *Selector) Eval(row Row) (match bool, err error)

Eval evaluates the SQL statement using the provided data and returns true if all conditions are satisfied. If a runtime error is experiences a false value is returned along with an error message.

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