Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Provide one final Select tree dump prior to WHERE clause analysis when ".selecttrace 0x400" tracing bit is set with SELECTTRACE_ENABLED. Analysis and debug changes only - normal builds are unaffected. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
283bf0b64da7acc5aa5812fc65995496 |
| User & Date: | drh 2015-06-05 20:27:26 |
Context
|
2015-06-08
| ||
| 17:40 | Split out some source code into new files: wherecode.c, whereexpr.c, and treeview.c. Other minor refactoring changes. (check-in: 50f33681 user: drh tags: trunk) | |
|
2015-06-05
| ||
| 22:33 | Split FROM-clause subquery flattening and code generation into separate loops. (check-in: be8e3fc7 user: drh tags: view-optimization) | |
| 20:27 | Provide one final Select tree dump prior to WHERE clause analysis when ".selecttrace 0x400" tracing bit is set with SELECTTRACE_ENABLED. Analysis and debug changes only - normal builds are unaffected. (check-in: 283bf0b6 user: drh tags: trunk) | |
|
2015-06-04
| ||
| 12:08 | Change the name of SrcList.a[].zIndex to the more descriptive SrcList.a[0].zIndexedBy. (check-in: 6a9cf063 user: drh tags: trunk) | |
Changes
Changes to src/select.c.
3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 .... 4885 4886 4887 4888 4889 4890 4891 4892 4893 4894 4895 4896 4897 4898 4899 .... 4959 4960 4961 4962 4963 4964 4965 4966 4967 4968 4969 4970 4971 4972 |
/* Finially, delete what is left of the subquery and return
** success.
*/
sqlite3SelectDelete(db, pSub1);
#if SELECTTRACE_ENABLED
if( sqlite3SelectTrace & 0x100 ){
sqlite3DebugPrintf("After flattening:\n");
sqlite3TreeViewSelect(0, p, 0);
}
#endif
return 1;
}
#endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */
................................................................................
i = -1;
}else{
if( (pItem->jointype & JT_OUTER)==0
&& pushDownWhereTerms(db, pSub, p->pWhere, pItem->iCursor)
){
#if SELECTTRACE_ENABLED
if( sqlite3SelectTrace & 0x100 ){
sqlite3DebugPrintf("After WHERE-clause push-down:\n");
sqlite3TreeViewSelect(0, p, 0);
}
#endif
}
if( pTabList->nSrc==1
&& (p->selFlags & SF_All)==0
&& OptimizationEnabled(db, SQLITE_SubqCoroutine)
................................................................................
}
pEList = p->pEList;
#endif
pWhere = p->pWhere;
pGroupBy = p->pGroupBy;
pHaving = p->pHaving;
sDistinct.isTnct = (p->selFlags & SF_Distinct)!=0;
#ifndef SQLITE_OMIT_COMPOUND_SELECT
/* If there is are a sequence of queries, do the earlier ones first.
*/
if( p->pPrior ){
rc = multiSelect(pParse, p, pDest);
explainSetInteger(pParse->iSelectId, iRestoreSelectId);
|
| | > > > > > > > |
3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 .... 4885 4886 4887 4888 4889 4890 4891 4892 4893 4894 4895 4896 4897 4898 4899 .... 4959 4960 4961 4962 4963 4964 4965 4966 4967 4968 4969 4970 4971 4972 4973 4974 4975 4976 4977 4978 4979 |
/* Finially, delete what is left of the subquery and return
** success.
*/
sqlite3SelectDelete(db, pSub1);
#if SELECTTRACE_ENABLED
if( sqlite3SelectTrace & 0x100 ){
SELECTTRACE(0x100,pParse,p,("After flattening:\n"));
sqlite3TreeViewSelect(0, p, 0);
}
#endif
return 1;
}
#endif /* !defined(SQLITE_OMIT_SUBQUERY) || !defined(SQLITE_OMIT_VIEW) */
................................................................................
i = -1;
}else{
if( (pItem->jointype & JT_OUTER)==0
&& pushDownWhereTerms(db, pSub, p->pWhere, pItem->iCursor)
){
#if SELECTTRACE_ENABLED
if( sqlite3SelectTrace & 0x100 ){
SELECTTRACE(0x100,pParse,p,("After WHERE-clause push-down:\n"));
sqlite3TreeViewSelect(0, p, 0);
}
#endif
}
if( pTabList->nSrc==1
&& (p->selFlags & SF_All)==0
&& OptimizationEnabled(db, SQLITE_SubqCoroutine)
................................................................................
}
pEList = p->pEList;
#endif
pWhere = p->pWhere;
pGroupBy = p->pGroupBy;
pHaving = p->pHaving;
sDistinct.isTnct = (p->selFlags & SF_Distinct)!=0;
#if SELECTTRACE_ENABLED
if( sqlite3SelectTrace & 0x400 ){
SELECTTRACE(0x400,pParse,p,("After all FROM-clause analysis:\n"));
sqlite3TreeViewSelect(0, p, 0);
}
#endif
#ifndef SQLITE_OMIT_COMPOUND_SELECT
/* If there is are a sequence of queries, do the earlier ones first.
*/
if( p->pPrior ){
rc = multiSelect(pParse, p, pDest);
explainSetInteger(pParse->iSelectId, iRestoreSelectId);
|