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Overview
| Comment: | Do not restore the iSelectId value until after the last SELECTTRACE when debugging Select processing. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: | 8088d8cac317adb96e357a8f4a196d7c |
| User & Date: | drh 2018-04-23 17:09:58 |
Context
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2018-04-23
| ||
| 17:18 | The ".selecttrace 4" command now shows only a single parse tree after name resolution. check-in: 5682146e user: drh tags: trunk | |
| 17:09 | Do not restore the iSelectId value until after the last SELECTTRACE when debugging Select processing. check-in: 8088d8ca user: drh tags: trunk | |
| 17:02 | In the ".selecttrace" output, include the EXPLAIN QUERY PLAN iSelectId as part of each Select identifier. check-in: 5c6339f9 user: drh tags: trunk | |
Changes
Changes to src/select.c.
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#ifndef SQLITE_OMIT_COMPOUND_SELECT
/* Handle compound SELECT statements using the separate multiSelect()
** procedure.
*/
if( p->pPrior ){
rc = multiSelect(pParse, p, pDest);
explainSetInteger(pParse->iSelectId, iRestoreSelectId);
#if SELECTTRACE_ENABLED
SELECTTRACE(1,pParse,p,("end compound-select processing\n"));
#endif
return rc;
}
#endif
/* For each term in the FROM clause, do two things:
** (1) Authorized unreferenced tables
** (2) Generate code for all sub-queries
................................................................................
** set the return code to 1. Otherwise 0. */
rc = (pParse->nErr>0);
/* Control jumps to here if an error is encountered above, or upon
** successful coding of the SELECT.
*/
select_end:
explainSetInteger(pParse->iSelectId, iRestoreSelectId);
sqlite3ExprListDelete(db, pMinMaxOrderBy);
sqlite3DbFree(db, sAggInfo.aCol);
sqlite3DbFree(db, sAggInfo.aFunc);
#if SELECTTRACE_ENABLED
SELECTTRACE(1,pParse,p,("end processing\n"));
#endif
return rc;
}
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#ifndef SQLITE_OMIT_COMPOUND_SELECT
/* Handle compound SELECT statements using the separate multiSelect()
** procedure.
*/
if( p->pPrior ){
rc = multiSelect(pParse, p, pDest);
#if SELECTTRACE_ENABLED
SELECTTRACE(1,pParse,p,("end compound-select processing\n"));
#endif
explainSetInteger(pParse->iSelectId, iRestoreSelectId);
return rc;
}
#endif
/* For each term in the FROM clause, do two things:
** (1) Authorized unreferenced tables
** (2) Generate code for all sub-queries
................................................................................
** set the return code to 1. Otherwise 0. */
rc = (pParse->nErr>0);
/* Control jumps to here if an error is encountered above, or upon
** successful coding of the SELECT.
*/
select_end:
sqlite3ExprListDelete(db, pMinMaxOrderBy);
sqlite3DbFree(db, sAggInfo.aCol);
sqlite3DbFree(db, sAggInfo.aFunc);
#if SELECTTRACE_ENABLED
SELECTTRACE(1,pParse,p,("end processing\n"));
#endif
explainSetInteger(pParse->iSelectId, iRestoreSelectId);
return rc;
}
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