What is search query
{ "query": { "match_all": {} } }

params

• match_all
• size (default to 10) how many search hits
• from - where to start, useful for paging (default 0)
• sort

• balance -> order

• _source - can be specified to only return specific fields (SQL select from)
• match (SQL where)
• match_phrase (SQL where exact)
• bool

• must/must_not -> array contains params and relationship
• should -> ... or relationship

• _score - result relevancy
• filter

• range - balance -> gte, lte, etc, use with filter

aggrgation

• aggs (SQL group by)

• group_by_.. -> terms -> field === SELECT state, count(*) from bank GROUP BY state ORDER BY count(*) DESC
• average_balance -> avg -> field

can be embeeddededdeed