LookML

LookML is a programming language created in 2012.

#643on PLDB

12Years Old

5kRepos

LookML website
There are at least 5,427 LookML repos on GitHub
LookML first developed in Looker
file extensions for LookML include lookml, modellkml and viewlkml
The Google BigQuery Public Dataset GitHub snapshot shows 47 users using LookML in 185 repos on GitHub
GitHub supports syntax highlighting for LookML
Read more about LookML on the web: 1.

Example from the web:

######################################
# FILE: ecommercestore.model.lkml    #
# Define the explores and join logic #
######################################
connection: order_database
include: "*.view.lkml"
explore: orders {
  join: customers {
    sql_on: ${orders.customer_id} = ${customers.id} ;;
  }
}

##########################################################
# FILE: orders.view.lkml                                 #
# Define the dimensions and measures for the ORDERS view #
##########################################################
view: orders {
  dimension: id {
    primary_key: yes
    type: number
    sql: ${TABLE}.id ;;
  }
  dimension: customer_id {      # field: orders.customer_id
    sql: ${TABLE}.customer_id ;;
  }
  dimension: amount {           # field: orders.amount
    type: number
    value_format: "0.00"
    sql: ${TABLE}.amount ;;
  }
  dimension_group: created {                # generates fields:
    type: time                              # orders.created_time, orders.created_date
    timeframes: [time, date, week, month]   # orders.created_week, orders.created_month
    sql: ${TABLE}.created_at ;;
  }
  measure: count {             # field: orders.count
    type: count                # creates a sql COUNT(*)
    drill_fields: [drill_set*] # list of fields to show when someone clicks 'ORDERS Count'
  }
  measure: total_amount {
    type: sum
    sql: ${amount} ;;
  }
  set: drill_set {
    fields: [id, created_time, customers.name, amount]
  }
}

#############################################################
# FILE: customers.view.lkml                                 #
# Define the dimensions and measures for the CUSTOMERS view #
#############################################################
view: customers {
  dimension: id {
    primary_key: yes
    type: number
    sql: ${TABLE}.id ;;
  }
  dimension: city {                    # field: customers.city
    sql: ${TABLE}.city ;;
  }
  dimension: state {                   # field: customers.state
    sql: ${TABLE}.state ;;
  }
  dimension: name {
    sql: CONCAT(${TABLE}.firstname, " ", ${TABLE}.lastname) ;;
  }
  measure: count {             # field: customers.count
    type: count                # creates a sql COUNT(*)
    drill_fields: [drill_set*] # fields to show when someone clicks 'CUSTOMERS Count'
  }
  set: drill_set {                     # set: customers.drill_set
    fields: [id, state, orders.count]  # list of fields to show when someone clicks 'CUSTOMERS Count'
  }
}

Example from Linguist:

- view: comments
  fields:

  - dimension: id
    primary_key: true
    type: int
    sql: ${TABLE}.id

  - dimension: body
    sql: ${TABLE}.body

  - dimension_group: created
    type: time
    timeframes: [time, date, week, month]
    sql: ${TABLE}.created_at

  - dimension: headline_id
    type: int
    hidden: true
    sql: ${TABLE}.headline_id

  - dimension_group: updated
    type: time
    timeframes: [time, date, week, month]
    sql: ${TABLE}.updated_at

  - dimension: user_id
    type: int
    hidden: true
    sql: ${TABLE}.user_id

  - measure: count
    type: count
    detail: detail*


  # ----- Detail ------
  sets:
    detail:
      - id
      - headlines.id
      - headlines.name
      - users.id

Feature	Supported	Token	Example
Comments	✓		# A comment
Line Comments	✓	#	# A comment
Semantic Indentation	X

LookML - Programming language

Language features