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Crunchy Data

@crunchydata

Trusted Open Source PostgreSQL and Enterprise PostgreSQL Support, Technology and Training

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linkhttp://www.crunchydata.com calendar_today09-08-2013 14:26:12

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Crunchy Data
@crunchydata

13 days ago

Let’s talk about Postgres scan types. Most of us have been in EXPLAIN and read some plans. Here’s some details about the different scan types and a diagram for thinking about how they work. ❖ Sequential scan: reads the entire table, row by row checking to see what matches the

Let’s talk about Postgres scan types. Most of us have been in EXPLAIN and read some plans. Here’s some details about the different scan types and a diagram for thinking about how they work. ❖ Sequential scan: reads the entire table, row by row checking to see what matches the