About index

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Issue
24

Page #9 entry 0 (key 'bjjl') has 75 extra bytes / Unexpected last index ID: -119 (expected -116)

Please check the attached database file. When running the Doctor, I get   Global Value Errors ------------------- [1] Unexpected last index ID: -119 (expected -116) Page Content Errors ------------------- [1] Page #9 entry 0 has unexpected object format [2] Page #9 entry 0 (key 'bjjl') has 75 extra
Manual
24

WHERE clause (JPQL / Criteria API)

and then collected as query results. WHERE Predicate and Indexes Formally, the WHERE clause functions as a filter between the FROM and the SELECT clauses. Practically, if a proper index is available, filtering is done earlier during FROM iteration. In the above population query, if an index is defined
Forum
23

Composite index support collection

Composite index support collection
Result
22

ObjectDB Object Database Features [2018-01-27]

other internal caches. Indexing Single field and multi field (composite) indices. Collection and array elements are indexable (extremely fast JOIN queries). Map keys and values are indexable. Nested paths inside embedded objects are indexable. Indices are also used for fast ordering and aggregate calculations
Result
22

ObjectDB Object Database Features [2018-10-27]

other internal caches. Indexing Single field and multi field (composite) indices. Collection and array elements are indexable (extremely fast JOIN queries). Map keys and values are indexable. Nested paths inside embedded objects are indexable. Indices are also used for fast ordering and aggregate calculations
Result
22

ObjectDB Object Database Features

result cache (for repeating queries with the same arguments). Many other internal caches. Indexing Single field and multi field (composite) indices. Collection and array elements are indexable (extremely fast JOIN queries). Map keys and values are indexable. Nested paths inside embedded objects
Result
17

What is new in ObjectDB 2.0?

ObjectDB 2.0 supports many new features and improvements, including: Most of the features of the new JPA 2.0 and JDO 2.2 APIs. User defined IDs (primary key) and sequences. Support of unlimited index ... query execution. Support of composite indexes and using indexes in query result sort. Improved query
Manual
14

JPA Entity Fields

, since the other side is not stored and calculated by a query. An index on the owner field may accelerate the inverse query and the load of the inverse field. But even with an index, executing a query
Manual
14

Query Parameters in JPA [2011-04-01]

for all its parameters (in no matter in which order). Ordinal Parameters (?index) In addition to named parameter, whose form is :name, JPQL supports also ordinal parameter, whose form is ?index. The following method
Manual
14

Query Parameters in JPA

for all its parameters (in no matter in which order). Ordinal Parameters (?index) In addition to named parameter, whose form is :name, JPQL supports also ordinal parameter, whose form is ?index. The following method