PostgreSQL - Indexing Strategies
What is the default type of index created in PostgreSQL when you use
CREATE INDEX without specifying the index type?What is the default type of index created in PostgreSQL when you use CREATE INDEX without specifying the index type?
easy📝 Conceptual Q1 of 15
Step-by-Step Solution
Solution:
Step 1: Understand PostgreSQL default index type
PostgreSQL uses B-tree as the default index type for general purposes.Step 2: Confirm default behavior of CREATE INDEX
When no index type is specified, PostgreSQL creates a B-tree index automatically.Final Answer:
B-tree index -> Option CQuick Check:
Default index type = B-tree index [OK]
Quick Trick: Default index in PostgreSQL is B-tree unless specified otherwise [OK]
Common Mistakes:
- Assuming hash index is default
- Confusing GIN or BRIN as default
- Thinking no index is created without type
Master "Indexing Strategies" in PostgreSQL
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