Implement Overlap queries

Summary:
Notes:

- Introduces the concept of queries on multiple properties (which meant changing query's internals a bit)
- Dates are stored as well as the "reference" in the index to allow quick filtering without fetching the whole entity
- Buckets are weeks starting on Monday (guaranteed by the use of the Julian calendar)
- Some size improvements are definitely possible (dates are padded numbers again, not using integer databases, Julian calendar starts at a very old date, etc.)

Test Plan: Tested in querytest

Reviewers: cmollekopf

Reviewed By: cmollekopf

Tags: #sink

Differential Revision: https://phabricator.kde.org/D13477

1 files changed, 13 insertions, 0 deletions

diff --git a/common/query.cpp b/common/query.cpp
index 404a304..ceb1897 100644
--- a/common/query.cpp
+++ b/common/query.cpp
@@ -179,6 +179,19 @@ bool QueryBase::Comparator::matches(const QVariant &v) const
 
             return range[0] <= v && v <= range[1];
         }
+        case Overlap: {
+            auto bounds = value.value<QList<QVariant>>();
+            if (bounds.size() < 2) {
+                return false;
+            }
+
+            auto range = v.value<QList<QVariant>>();
+            if (range.size() < 2) {
+                return false;
+            }
+
+            return range[0] <= bounds[1] && bounds[0] <= range[1];
+        }
         case Fulltext:
         case Invalid:
         default: