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3 check-ins using file src/update.c version 74feccd6
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2018-09-16
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| 16:34 | Fix a memory leak in the explain extension. (check-in: d0c92b04 user: drh tags: trunk) | |
| 16:18 | 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. (check-in: 2404304c user: drh tags: trunk) | |
| 15:01 | Improved presentation on the new code that prevents unnecessary writes to expressions on indexes during an UPDATE when the expression does not reference any of the columns that are changing. (check-in: c9f04529 user: drh tags: trunk) | |