Join Types Index

A | C | E | F | I | R | S | U

A

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ALL

Section 8.2.1.16, “Avoiding Full Table Scans”
Section 8.8.2, “EXPLAIN Output Format”
Section 8.2.1.5, “Nested-Loop Join Algorithms”

C

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const

Section 8.8.2, “EXPLAIN Output Format”
Section 8.8.3, “Extended EXPLAIN Output Format”
Section 18.3.3.8.2, “NDB Cluster System Variables”
Section 8.2.1.10, “ORDER BY Optimization”
Section 8.2.1.2, “Range Optimization”
Section 13.2.9, “SELECT Statement”

E

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eq_ref

Section 8.8.2, “EXPLAIN Output Format”
Section 15.8.1, “MERGE Table Advantages and Disadvantages”
Section 18.3.3.8.2, “NDB Cluster System Variables”
Section 8.2.2, “Subquery Optimization”

F

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fulltext

Section 8.8.2, “EXPLAIN Output Format”

I

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index

Section 8.8.2, “EXPLAIN Output Format”
Section 8.2.1.5, “Nested-Loop Join Algorithms”

index_merge

Section 8.8.2, “EXPLAIN Output Format”
Section 8.2.1.3, “Index Merge Optimization”

index_subquery

Section 8.8.2, “EXPLAIN Output Format”
Section 13.2.10.10, “Optimizing Subqueries”
Section 8.2.2, “Subquery Optimization”

R

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range

Section 8.8.2, “EXPLAIN Output Format”
Section 8.2.1.11, “GROUP BY Optimization”
Section 8.2.1.3, “Index Merge Optimization”
Section 8.2.1.5, “Nested-Loop Join Algorithms”
Section 8.2.1.2, “Range Optimization”

ref

Section 8.8.2, “EXPLAIN Output Format”
Section 8.8.3, “Extended EXPLAIN Output Format”
Section 8.3.7, “InnoDB and MyISAM Index Statistics Collection”
Section 15.8.1, “MERGE Table Advantages and Disadvantages”
Section 18.3.3.8.2, “NDB Cluster System Variables”
Section 8.2.2, “Subquery Optimization”

ref_or_null

Section 8.8.2, “EXPLAIN Output Format”
Section 8.2.1.9, “IS NULL Optimization”
Section 8.2.2, “Subquery Optimization”

S

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system

Section 8.8.2, “EXPLAIN Output Format”
Section 8.8.3, “Extended EXPLAIN Output Format”
Section 8.2.1.2, “Range Optimization”
Section 13.2.9, “SELECT Statement”

U

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unique_subquery

Section 8.8.2, “EXPLAIN Output Format”
Section 13.2.10.10, “Optimizing Subqueries”
Section 8.2.2, “Subquery Optimization”