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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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2 check-ins using file src/select.c version 81c6517a

2018-07-26
23:54
Add a test case demonstrating the collation problem with constant propagation. check-in: 50add839 user: drh tags: propagate-const-opt
23:47
Generalize the constant propagation optimization so that it applies on every WHERE close, not just those that contain a subquery. This then demonstrates that the current implementation is inadequate since it does not take into account collating sequences. check-in: 57eb2abd user: drh tags: propagate-const-opt