You want to optimize a query that fetches posts with multiple meta conditions: color = 'red' and size = 'large'. Which is the best way to write this WP_Query for performance?

hard📝 Application Q8 of 15

Wordpress - WordPress Query and Database

AUse 'meta_query' with 'relation' => 'AND' and each condition as an array

BUse multiple WP_Query calls, one per meta condition

CUse 'meta_key' => 'color', 'meta_value' => 'red', and ignore size

DUse a single meta_key with combined value 'red_large' to match both

Step-by-Step Solution

Solution:

Step 1: Understand multiple meta conditions
Using 'meta_query' with 'relation' => 'AND' allows combining multiple meta filters efficiently.
Step 2: Evaluate other options
Multiple WP_Query calls increase queries; ignoring size misses condition; combined value is not standard.
Final Answer:
Use 'meta_query' with 'relation' => 'AND' and each condition as an array -> Option A
Quick Check:
Multiple meta filters use meta_query with AND [OK]

Quick Trick: Combine meta filters with meta_query and relation 'AND' [OK]

Common Mistakes:

Running multiple queries instead of one
Ignoring some meta conditions
Trying to combine values in one meta_key

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You want to optimize a query that fetches posts with multiple meta conditions: color = 'red' and size = 'large'. Which is the best way to write this WP_Query for performance?

Step 1: Understand multiple meta conditions

Step 2: Evaluate other options

Final Answer:

Quick Check:

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