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2 Commits

Author SHA1 Message Date
drh
6557a07ca8 Fix a memory leak in the explain extension. 
FossilOrigin-Name: d0c92b047a5355726aea87f38038e5bda3adf6137492919be94bd29bb847eddb
 2018-09-16 16:34:31 +00:00
drh
9b84f03556 Add the new "explain" virtual table in ext/misc. Use this virtual table 
for additional test cases for the optimization that avoids updating indexes
on expressions when none of the columns changed by the UPDATE are in the
expression.

FossilOrigin-Name: 2404304cc15eaeee2744cf3c8f9cac0a544631c4f1060c5a17a78b43ca86edf0
 2018-09-16 16:18:01 +00:00