influxql

package

v0.1.4 Latest Latest Go to latest Published: Jan 27, 2022 License: MIT Imports: 4 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/lytics/qlbridge

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Documentation ¶

Index ¶

Variables
func LexColumnsInflux(l *lex.Lexer) lex.StateFn
func LexInfluxName(l *lex.Lexer) lex.StateFn
type Ast
- func Parse(query string) (*Ast, error)
type Column
type From
type Parser
type SelectStmt

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	// Tokens Specific to INFLUXDB
	TokenShortDesc lex.TokenType = 1000
	TokenLongDesc  lex.TokenType = 1001
	TokenKind      lex.TokenType = 1002
)

View Source

var InfluxQlDialect *lex.Dialect = &lex.Dialect{
	Statements: []*lex.Clause{
		{Token: lex.TokenSelect, Clauses: selectQl},
	},
}

Functions ¶

func LexColumnsInflux ¶

func LexColumnsInflux(l *lex.Lexer) lex.StateFn

Handle influx columns

SELECT
     valuect(item) AS stuff SHORTDESC "stuff" KIND INT

Examples:

(colx = y OR colb = b)
cola = 'a5'p
cola != "a5", colb = "a6"
REPLACE(cola,"stuff") != "hello"
FirstName = REPLACE(LOWER(name," "))
cola IN (1,2,3)
cola LIKE "abc"
eq(name,"bob") AND age > 5

func LexInfluxName ¶

func LexInfluxName(l *lex.Lexer) lex.StateFn

lex value

SIMPLE_NAME_VALUE | TABLE_NAME_VALUE | REGEX_VALUE

Types ¶

type Ast ¶

type Ast struct {
	Comments string `json:",omitempty"` // Any comments
	Select   *SelectStmt
}

func Parse ¶

func Parse(query string) (*Ast, error)

Parses string query

type Column ¶

type Column struct {
	Name string
}

type From ¶

type From struct {
	Value string
	Regex bool
}

type Parser ¶

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

parser evaluateslex.Tokens

type SelectStmt ¶

type SelectStmt struct {
	Columns []*Column // identify inputs and outputs, e.g. "SELECT fname, count(*) FROM ..."
	From    *From     // metric can be regex
	GroupBy []string  // group by
	Alias   string    // Unique identifier of this query for start/stop/mgmt purposes

}

Source Files ¶

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