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Query planner enhancements to be more agressive about optimizing out ORDER BY

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clauses - in particular the query planner now has the ability to omit ORDER BY
clauses that span multiple tables in a join.

FossilOrigin-Name: 1e874629d7cf568368b912b295bd3001147d0b52
This commit is contained in:
drh
2012-09-28 00:44:28 +00:00
parent 8ccc6d4076 a9e3fc05f5
commit f784c1ede9
15 changed files with 932 additions and 387 deletions
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src/main.c
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@@ -3019,8 +3019,7 @@ int sqlite3_test_control(int op, ...){
*/
case SQLITE_TESTCTRL_OPTIMIZATIONS: {
sqlite3 *db = va_arg(ap, sqlite3*);
int x = va_arg(ap,int);
db->flags = (x & SQLITE_OptMask) | (db->flags & ~SQLITE_OptMask);
db->dbOptFlags = (u16)(va_arg(ap, int) & 0xffff);
break;
}