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|Comment:||Small changes to the OP_OpenEphemeral opcode to improve testability.|
|Downloads:||Tarball | ZIP archive | SQL archive|
|Timelines:||family | ancestors | descendants | both | trunk|
|Files:||files | file ages | folders|
|User & Date:||drh 2018-12-31 17:58:05|
|20:39||Additional steps to help ensure that scalar subqueries are only evaluated once even if they are used in multiple places within the query. This fixes a performance regression reported on the mailing list and caused by check-in [531eca6104e41e43] which was a fix for ticket [787fa716be3a7f650c]. Think of this check-in as an improved fix for that ticket. check-in: e1303193 user: drh tags: trunk|
|18:30||Merge enhancements and bug fixes from trunk. check-in: 9fb646f2 user: drh tags: reuse-subqueries|
|17:58||Small changes to the OP_OpenEphemeral opcode to improve testability. check-in: f856676c user: drh tags: trunk|
|16:36||Fix the OP_OpenEphemeral opcode in the bytecode engine so that if it is called a second or subsequent time, it merely clears the existing table rather than creating a new one. Proposed fix for ticket [d0866b26f83e9c55e30de0821f5d]. check-in: 4678cb10 user: drh tags: trunk|
Changes to src/vdbe.c.