Polymorphic Schemas without Regret - 011

Oka collection lo different shapes unna documents pettodcha? Pettochu, kani query chesetappudu thala noppi raddadu ante ee pattern follow avvandi.

Core Explanation: Polymorphism (Storing different entities like 'Bikes', 'Cars' in 'Vehicles' collection) is powerful. Kani common fields ni common ga unchandi. Type specific fields ni sub-document lo pettandi leda attributes array vadeyandi. Lekapothe index create cheyyadam kastam.

Wrong Practice: Inconsistent field names for same purpose.

{ "type": "car", "car_color": "red" }
{ "type": "bike", "bike_colour": "black" } // 'colour' spelling diff + prefix

Querying all red vehicles is hard now.

Best Practice: Common structure + Attribute Pattern.

{
  "type": "car",
  "color": "red", // Common field
  "specs": { "doors": 4 } // Specific
}
{
  "type": "bike",
  "color": "black",
  "specs": { "cc": 150 }
}

Closing Insight: "Structure entha flexible unna, Query access patterns matram consistent ga maintain cheyyali."