MCL 4.0.0

Manticore Columnar Library 4.0.0

• Commit 89ed74a3 - Fixed a crash caused by mismatched filter and secondary index types.
• Commit 4223c525 - Implemented the NOTNULL filter type for secondary indexes.
• Commit 020c82ed - Fixed exclude filter handling in columnar accessor for table encoding.
• Commit 3fb88e65 - Fixed issues with full-scan (NOTNULL) filters on strings.
• Commit b707d5b0 - Added native exclude filter handling using bitmaps.
• Commit bd59d083 - Fixed issues with bitmap inversion.
• Commit ba9e283b - Switched to the hnsw library to fix issues when loading multiple KNN indexes.
• Commit 89120fa7 - Resolved another bitmap inversion issue.
• Commit edadc694 - Addressed additional issues with bitmap inversion.
• Commit 3ff21a80 - Fixed incorrectly enabled secondary indexes for JSON attribute fields affected by updates.
• Commit 47da6760 - Added support for fetching index metadata.

MCL 2.2.4

Manticore Columnar Library 2.2.4

Minor changes

• Commit c6db Implemented better analyzer rewinding

Bugfixes

• Commit 357e Fixed bitmap union selection logic
• Commit 4c90 Fixup integer filters before creating integer analyzers
• Commit fea4 Added an analyzer fastpath when all table values pass the filter

MCL 2.2.0

Manticore Columnar Library 2.2.0

Major new features

• Added the ability to fetch the number of documents corresponding to a given filter without using iterators
• Significantly improved the performance of secondary indexes with rowid filtering
• Added cutoff support to analyzers
• Significantly improved the performance of secondary indexes with non-selective range filters

Minor changes

• Сhanged PGM resolution for better estimates

• Commit 0abc Inlined some functions

• Commit c45d Added inlines; changed codec interface; changed default 64bit codec to fastpfor256

• Commit 86b3 Added exclude filters to CalcCount

• Commit 5ccf Changed columnar iterator interface to single-call

• Commit f7f5 Reduced partial minmax eval depth

Bugfixes

• Commit 4f42 Fixed a crash caused by buffer overflow when encoding integer data
• Commit 7653 Fixed a crash caused by using a string filter without a hash func
• Issue #20 Fixed a crash on indexing zero-length MVA attributes
• Commit 102d Bitmap iterator now rewinds only forward
• Commit 24e7 Fixed float range filters vs negative values
• Commit e447 Fixed header integrity checks
• Commit 3c0b Fixed bitmap iterator description on empty result sets
• Commit 4b21 Clamp iterator esitmates for FilterType_e::VALUES

Manticore Columnar Library 2.0.4

Manticore Columnar Library 2.0.4

• Issue #1054 Bug on empty string condition

Manticore Columnar Library 2.0.2

Manticore Columnar Library 2.0.2

• Commit ee87 MCL could crash on inserting data. Fixed.

Manticore Columnar Library 2.0.0

Manticore Columnar Library 2.0.0

• Refactoring of Secondary indexes integration with the MCL.
• Multiple changes related with cost-based query optimization
• Commit efe2 Manticore Columnar Library optimization which can lower response time by partial preliminary min/max evaluation.
• Commit 2757 If a disk chunk merge is interrupted, the daemon now cleans up the MCL-related tmp files.
• Commit 679a Arm64 support
• Commit 0c59 Fix of a crash in PGM
• Commit 7db3 Fixed a crash on search of a boolean attribute
• Commit 2cc9 added missing HASH packing evaluation to integer analyzer
• Commit 6500 use bitmap iterator for iterator union
• Commit b3d1 added bitmap support for non-range queries
• Commit c092 fixed value iterators vs bitmap iterator
• Commit 1f90 use split bitmap instead of solid bitmap on smaller result sets
• Commit dfc7 added cutoff interface to columnar/secondary iterators; implemented cutoff in bitmap iterator
• Commit 0154 much faster bitmap scan with BitScanForward/__builtin_ctzll
• Commit e246 fixed batch fetch vs split bitmap
• Commit 39b5 removed minmax from hash attributes; made minmax optional in int attributes; changed attr meta getter; remove matching blocks if all blocks matched
• Commit 37ee Build RHEL9
• Commit 0c31 add debian bookworm build
• Commit 98b6 added missing uint64 data type to storage checker
• Commit efe2 added partial columnar minmax eval

Release 1.15.4

Release 1.15.4

Commit 372ffd6f - 2 bugs fixed:

• fixed crash on indexing float values
• fixed float values sorting stag