Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
2 check-ins related to "failed-optimization"
2017-01-09
| ||
18:20 | Try to move OP_Concat operations outside the inner loop. This turns out to make things very slightly slower, at least in speedtest1.c. (Closed-Leaf check-in: 8a90f691 user: drh tags: failed-optimization) | |
15:44 | Modify the OP_RowData opcode so that when P3!=0 it is allowed to hold an ephemeral copy of the content. This avoids unnecessary memcpy() operations in the xfer-optimization and VACUUM. (check-in: 6e106acd user: drh tags: trunk) | |