You want to improve query performance on a large table orders that changes frequently. Which approach using ANALYZE is best?

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PostgreSQL - Performance Tuning

You want to improve query performance on a large table orders that changes frequently. Which approach using ANALYZE is best?

ARun <code>ANALYZE VERBOSE orders;</code> only once after creating the table

BRun <code>ANALYZE;</code> on the whole database once a year

CRun <code>ANALYZE orders;</code> regularly and use <code>VERBOSE</code> to monitor progress

DAvoid running ANALYZE because it locks the table

Step-by-Step Solution

Solution:

Step 1: Consider table size and update frequency
Large, frequently changing tables benefit from regular statistics updates to keep query plans accurate.
Step 2: Use ANALYZE regularly with VERBOSE
Running ANALYZE orders; regularly updates stats. Adding VERBOSE helps monitor progress during analysis.
Step 3: Evaluate other options
Running ANALYZE once a year is too infrequent. Running only once after creation misses ongoing changes. ANALYZE does not lock tables for long.
Final Answer:
Run ANALYZE orders; regularly and use VERBOSE to monitor progress -> Option C
Quick Check:
Regular ANALYZE keeps stats fresh for big tables [OK]

Quick Trick: Regular ANALYZE keeps stats fresh; VERBOSE shows progress [OK]

Common Mistakes:

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