Changeset: d5cf7d95ecf8 for MonetDB URL: https://dev.monetdb.org/hg/MonetDB/rev/d5cf7d95ecf8 Modified Files: gdk/ChangeLog.Jan2022 Branch: Jan2022 Log Message:
Add changelog entry diffs (22 lines): diff --git a/gdk/ChangeLog.Jan2022 b/gdk/ChangeLog.Jan2022 --- a/gdk/ChangeLog.Jan2022 +++ b/gdk/ChangeLog.Jan2022 @@ -1,6 +1,18 @@ # ChangeLog file for GDK # This file is updated with Maddlog +* Mon Jan 3 2022 Panagiotis Koutsourakis <kutsu...@monetdbsolutions.com> +- Implement string imprints (strimps for short) a pre-filter structure + for strings in order to accelerate LIKE queries. If a strimp exists + for a specific string column the strings are pre-filtered, rejecting + strings that cannot possibly match, before the more expensive and + accurate matching algorithms run. Strimps are created automatically + or using 'sys.strimp_create' with arguments the names of the schema, + table and column. Automatic strimp creation is controlled by two + user settable gdk options: 'gdk_use_strimps' (default value "no") and + 'gdk_strimps_threshold' (default value 1.000.000). See the manual for + more details. + * Wed Aug 11 2021 Sjoerd Mullender <sjo...@acm.org> - Many (most) low level functions that could take a long time (such as BATjoin) can now be aborted with a timeout. When the function takes too _______________________________________________ checkin-list mailing list checkin-list@monetdb.org https://www.monetdb.org/mailman/listinfo/checkin-list
