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B-tree indexes for JSON in PostgreSQL
Gleb Otochkin
Gleb Otochkin
Gleb Otochkin
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Dec 15 '25
B-tree indexes for JSON in PostgreSQL
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index
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postgres
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json
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performance
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8 min read
Why Doesn't Oracle Multi-Value Index Optimize .sort() Like MongoDB Does With its Multi-Key Index?
Franck Pachot
Franck Pachot
Franck Pachot
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MongoDB
Aug 15 '25
Why Doesn't Oracle Multi-Value Index Optimize .sort() Like MongoDB Does With its Multi-Key Index?
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mongodb
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oracle
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index
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json
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15 min read
Why MongoDB skips indexes when flattening or renaming sub-document fields in $project before $match aggregation pipeline
Franck Pachot
Franck Pachot
Franck Pachot
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MongoDB
Aug 4 '25
Why MongoDB skips indexes when flattening or renaming sub-document fields in $project before $match aggregation pipeline
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mongodb
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document
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database
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index
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6 min read
.hint() in MongoDB is different that SQL optimizer hints: they force indexes
Franck Pachot
Franck Pachot
Franck Pachot
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MongoDB
Jul 22 '25
.hint() in MongoDB is different that SQL optimizer hints: they force indexes
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mongodb
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document
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database
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index
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8 min read
Playing With Search: Which Clause(s) Matched?
Erik Hatcher
Erik Hatcher
Erik Hatcher
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MongoDB
Jul 21 '25
Playing With Search: Which Clause(s) Matched?
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mongodb
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search
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index
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programming
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2 min read
Wildcard Indexes: MongoDB flexibility joins query performance
Franck Pachot
Franck Pachot
Franck Pachot
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Jul 10 '25
Wildcard Indexes: MongoDB flexibility joins query performance
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mongodb
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document
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index
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5 min read
$graphLookup (Connect By / Recursive Query)
Franck Pachot
Franck Pachot
Franck Pachot
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May 29 '25
$graphLookup (Connect By / Recursive Query)
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mongodb
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document
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2 min read
$elemMatch and Multi-Key Indexes
Franck Pachot
Franck Pachot
Franck Pachot
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May 28 '25
$elemMatch and Multi-Key Indexes
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mongodb
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document
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database
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index
8
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1
 comment
4 min read
Google Firestore with MongoDB compatibility - index limitations
Franck Pachot
Franck Pachot
Franck Pachot
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May 27 '25
Google Firestore with MongoDB compatibility - index limitations
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mongodb
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database
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firestore
5
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6 min read
Sort on Array with Multi-Key Index
Franck Pachot
Franck Pachot
Franck Pachot
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May 27 '25
Sort on Array with Multi-Key Index
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document
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5 min read
Equality with Multiple Values, Preserving Sort for Pagination
Franck Pachot
Franck Pachot
Franck Pachot
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May 26 '25
Equality with Multiple Values, Preserving Sort for Pagination
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mongodb
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database
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5 min read
B-Tree for Equality, Sort, Range (indexing strategies in MongoDB)
Franck Pachot
Franck Pachot
Franck Pachot
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May 23 '25
B-Tree for Equality, Sort, Range (indexing strategies in MongoDB)
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3 min read
No Index for LIKE on JSONB with Array in the Path (GIN limitation)
Franck Pachot
Franck Pachot
Franck Pachot
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MongoDB
May 24 '25
No Index for LIKE on JSONB with Array in the Path (GIN limitation)
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postgres
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index
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5 min read
Indexing for New Use Cases Within the MongoDB Document Model (tutorial)
Franck Pachot
Franck Pachot
Franck Pachot
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May 22 '25
Indexing for New Use Cases Within the MongoDB Document Model (tutorial)
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mongodb
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database
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index
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3 min read
Sampling Without Index
Franck Pachot
Franck Pachot
Franck Pachot
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May 22 '25
Sampling Without Index
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database
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2 min read
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