Fri, 28 Apr 2017 23:19:06 +0200 wenzelm dummy session entry for empty build_info: relevant for filter_files;
Fri, 28 Apr 2017 22:39:29 +0200 wenzelm tuned query, notably for isabelle_build_log_build_info;
Fri, 28 Apr 2017 22:29:37 +0200 wenzelm operations to read database;
Fri, 28 Apr 2017 21:33:31 +0200 wenzelm tuned signature: less overloading;
Fri, 28 Apr 2017 20:03:34 +0200 wenzelm tuned signature;
Fri, 28 Apr 2017 18:52:31 +0200 wenzelm tuned transaction granularity;
Fri, 28 Apr 2017 18:24:58 +0200 wenzelm unused;
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