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This is the first in what is anticipated to be a long sequence of incremental

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changes aimed at improving aggregate query processing, and in particular
helping aggregate queries take better advantage of indexes on expression.
The end goal is to resolve ticket [99378177930f87bd], though it remains to
be seen whether or not I can get there with this approach.

FossilOrigin-Name: cba837eae93f6b842d4e78ef00661a4f09deb99c53f12b3e8f46763749602597
This commit is contained in:
drh
2022-11-22 13:33:58 +00:00
parent c59b7a8053
commit ff5e4ecced
4 changed files with 16 additions and 15 deletions
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src/sqliteInt.h
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@@ -2719,7 +2719,7 @@ struct AggInfo {
int sortingIdx; /* Cursor number of the sorting index */
int sortingIdxPTab; /* Cursor number of pseudo-table */
int nSortingColumn; /* Number of columns in the sorting index */
int mnReg, mxReg; /* Range of registers allocated for aCol and aFunc */
int mnReg; /* First in a range of regsiters for aCol and aFunc */
ExprList *pGroupBy; /* The group by clause */
struct AggInfo_col { /* For each column used in source tables */
Table *pTab; /* Source table */