cqengine

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most longest prefix value exist in the column value but it doesn't intersect with other columns values in the query that we need part of query retrieval

7

lets suppose we have we have part of our query select R from Table where Longest(A=112233) and (B>5 and D

fouadazem

It would be beneficial if `ConcurrentIndexedCollection` and `ObjectLockingIndexedCollection` supported the [STRICT_REPLACEMENT](https://github.com/npgall/cqengine/blob/4c70d5ee1d53ae26f171d779ef4f9ac4230a09d8/code/src/main/java/com/googlecode/cqengine/TransactionalIndexedCollection.java#L212) feature that is supported in `TransactionalIndexedCollection`. The check would not be atomic/transactional in those collections. (In fact it would...

npgall

What are the heuristics to figure out which index to loop over? 1. Query on a single attribute that has an index 2. Query on two attributes that both have...

asad-awadia

Surprised that cqengine doesn't support java.util.Optional. Is the engine trying to maintain compatibility with pre-Java 1.8 code? Would be great to see a `Optional:ResultSet.unique()` IMO. Most Java code these days...

buko

Name of automatic module 'cqengine' is unstable, it is derived from the module's file name.

6

Hi there, The message in the issue title is what you gen when you use CQEngine with Java 9, and even though it is "just" a warning, it also recommends...

Verdoso

Hi, I noticed while browsing the code that cached hashcode are disabled because EqualsVerifier didn't support them. Apparently it is now possible: https://jqno.nl/equalsverifier/manual/caching-hashcodes/ If this has an impact on performance,...

victornoel

Hi, Most of the static methods in all of the classes (e.g., `CompoundIndex`, `QueryFactory`, etc) takes varargs parameters but sometimes, you are manipulating lists and just want to pass it...

victornoel

Perfomance index

3

I have class: ``` public class Product { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; private String name, code; @Transient public static final Attribute IS_VISIBLE = attribute(Fields.visible, Product::isVisible); @Transient public...

duytungth

SQLParser fails when mixed logic expression not explicitly parenthesized

1

SLQParser fails to parse valid SQL expressions with mixed logical operators (AND / OR) unless they are explicitly parenthesized. For example, this valid SQL expression throws a parsing exception. ```...

clayembry

Java 14 -> IllegalStateException: Could not resolve sufficient generic type information

7

Hi, I have an application that runs fine with Java 8 and 11 but if I run it with Java 14, I get this error: ``` Caused by: java.lang.IllegalStateException: Could...

Verdoso