Struct AggregateQueryParser 

pub struct AggregateQueryParser;

Aggregate query parser

Implementations

impl AggregateQueryParser

pub fn parse( query_json: &Value, metadata: &FactTableMetadata, ) -> Result<AggregationRequest>

Parse a simplified aggregate query into AggregationRequest.

For we’ll accept a JSON structure that represents the query:

{
  "table": "tf_sales",
  "groupBy": {
    "category": true,
    "occurred_at_day": true
  },
  "aggregates": [
    {"count": {}},
    {"revenue_sum": {}}
  ],
  "having": {
    "revenue_sum_gt": 1000
  },
  "orderBy": {
    "revenue_sum": "DESC"
  },
  "limit": 10
}

Errors

Returns error if the query structure is invalid or references non-existent measures.