database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-12 13:01:09 +03:00
Code Activity

Extra ".selecttrace" output following aggregate analysis. No changes to

Browse Source 
production builds.

FossilOrigin-Name: 6fbf74ab3189b9cb20cf7cc8db0226eb935a8eab477cc83b8390492fcf2f1f76
This commit is contained in:
drh
2017-10-26 18:43:19 +00:00
parent 4544e28425
commit 7ea11066b6
3 changed files with 27 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/select.c
View File

@@ -5659,6 +5659,24 @@ int sqlite3Select(
}
sAggInfo.mxReg = pParse->nMem;
if( db->mallocFailed ) goto select_end;
#if SELECTTRACE_ENABLED
if( sqlite3SelectTrace & 0x400 ){
int ii;
SELECTTRACE(0x400,pParse,p,("After aggregate analysis:\n"));
sqlite3TreeViewSelect(0, p, 0);
for(ii=0; ii<sAggInfo.nColumn; ii++){
sqlite3DebugPrintf("agg-column[%d] iMem=%d\n",
ii, sAggInfo.aCol[ii].iMem);
sqlite3TreeViewExpr(0, sAggInfo.aCol[ii].pExpr, 0);
}
for(ii=0; ii<sAggInfo.nFunc; ii++){
sqlite3DebugPrintf("agg-func[%d]: iMem=%d\n",
ii, sAggInfo.aFunc[ii].iMem);
sqlite3TreeViewExpr(0, sAggInfo.aFunc[ii].pExpr, 0);
}
}
#endif
/* Processing for aggregates with GROUP BY is very different and
** much more complex than aggregates without a GROUP BY.
@@ -5956,7 +5974,7 @@ int sqlite3Select(
** SELECT max(x) FROM ...
**
** If it is, then ask the code in where.c to attempt to sort results
** as if there was an "ORDER ON x" or "ORDER ON x DESC" clause.
** as if there was an "ORDER BY x" or "ORDER BY x DESC" clause.
** If where.c is able to produce results sorted in this order, then
** add vdbe code to break out of the processing loop after the
** first iteration (since the first iteration of the loop is