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Overview
Comment: | Enhance the sqlite3GetTempRange() and sqlite3ReleaseTempRange() internal routines so that they use sqlite3GetTempReg() and sqlite3ReleaseTempReg() when nReg==1. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | rowvalue |
Files: | files | file ages | folders |
SHA1: |
4071da2f87a2f24a279ac3bced8c794a |
User & Date: | drh 2016-09-06 14:37:05.419 |
Context
2016-09-06
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14:58 | Fix a problem handling (a, b) IN (SELECT ...) expressions when there is an index on just one of "a" or "b". (check-in: 231c72d9f6 user: dan tags: rowvalue) | |
14:37 | Enhance the sqlite3GetTempRange() and sqlite3ReleaseTempRange() internal routines so that they use sqlite3GetTempReg() and sqlite3ReleaseTempReg() when nReg==1. (check-in: 4071da2f87 user: drh tags: rowvalue) | |
12:04 | Fix a typo in a comment in expr.c. (check-in: 288e934f35 user: dan tags: rowvalue) | |
Changes
Changes to src/expr.c.
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4987 4988 4989 4990 4991 4992 4993 | } } pParse->aTempReg[pParse->nTempReg++] = iReg; } } /* | | > > > > > | 4987 4988 4989 4990 4991 4992 4993 4994 4995 4996 4997 4998 4999 5000 5001 5002 5003 5004 5005 5006 5007 5008 5009 5010 5011 5012 5013 5014 5015 5016 5017 5018 5019 5020 5021 5022 | } } pParse->aTempReg[pParse->nTempReg++] = iReg; } } /* ** Allocate or deallocate a block of nReg consecutive registers. */ int sqlite3GetTempRange(Parse *pParse, int nReg){ int i, n; if( nReg==1 ) return sqlite3GetTempReg(pParse); i = pParse->iRangeReg; n = pParse->nRangeReg; if( nReg<=n ){ assert( !usedAsColumnCache(pParse, i, i+n-1) ); pParse->iRangeReg += nReg; pParse->nRangeReg -= nReg; }else{ i = pParse->nMem+1; pParse->nMem += nReg; } return i; } void sqlite3ReleaseTempRange(Parse *pParse, int iReg, int nReg){ if( nReg==1 ){ sqlite3ReleaseTempReg(pParse, iReg); return; } sqlite3ExprCacheRemove(pParse, iReg, nReg); if( nReg>pParse->nRangeReg ){ pParse->nRangeReg = nReg; pParse->iRangeReg = iReg; } } |
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Changes to src/select.c.
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1218 1219 1220 1221 1222 1223 1224 | sqlite3VdbeResolveLabel(v, pSort->labelBkOut); } iTab = pSort->iECursor; if( eDest==SRT_Output || eDest==SRT_Coroutine || eDest==SRT_Mem ){ regRowid = 0; regRow = pDest->iSdst; nSortData = nColumn; | | < < < < | 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 | sqlite3VdbeResolveLabel(v, pSort->labelBkOut); } iTab = pSort->iECursor; if( eDest==SRT_Output || eDest==SRT_Coroutine || eDest==SRT_Mem ){ regRowid = 0; regRow = pDest->iSdst; nSortData = nColumn; }else{ regRowid = sqlite3GetTempReg(pParse); regRow = sqlite3GetTempRange(pParse, nColumn); nSortData = nColumn; } nKey = pOrderBy->nExpr - pSort->nOBSat; if( pSort->sortFlags & SORTFLAG_UseSorter ){ int regSortOut = ++pParse->nMem; iSortTab = pParse->nTab++; if( pSort->labelBkOut ){ addrOnce = sqlite3CodeOnce(pParse); VdbeCoverage(v); |
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