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Add comment to the columnIsGoodIndexCandidate() routine to record the results

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of a failed experiment.  No changes to code.

FossilOrigin-Name: 9ee57a30a49d9813bf2669a5d8346f7e018e3fbf1792739951311a8d3a249d45
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drh
2025-01-03 11:51:50 +00:00
parent 8d6e3f513c
commit ded37f337b
3 changed files with 13 additions and 8 deletions
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src/where.c
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@ -860,6 +860,11 @@ static int constraintCompatibleWithOuterJoin(
** more than 20, then return false.
**
** 3. If no disqualifying conditions above are found, return true.
**
** 2025-01-03: I experimented with a new rule that returns false if the
** the datatype of the column is "BOOLEAN". This did not improve
** performance on any queries at hand, but it did burn CPU cycles, so the
** idea was not committed.
*/
static SQLITE_NOINLINE int columnIsGoodIndexCandidate(
const Table *pTab,