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Overview
| Comment: | Add infrastructure for doing an UPDATE as part of an UPSERT. Still no actual UPDATE code, however. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | upsert |
| Files: | files | file ages | folders |
| SHA3-256: | 6d3017f92bce3e50a91fab2f605e2af8 |
| User & Date: | drh 2018-04-13 18:59:17 |
Context
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2018-04-13
| ||
| 21:55 | First cut at logic to perform DO UPDATE for rowid tables. check-in: a9080bc8 user: drh tags: upsert | |
| 18:59 | Add infrastructure for doing an UPDATE as part of an UPSERT. Still no actual UPDATE code, however. check-in: 6d3017f9 user: drh tags: upsert | |
| 16:29 | Merge the preupdate hook change from trunk. check-in: 7353caab user: drh tags: upsert | |
Changes
Changes to src/insert.c.
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sqlite3MultiWrite(pParse);
sqlite3GenerateRowIndexDelete(pParse, pTab, iDataCur, iIdxCur,0,-1);
}
}
seenReplace = 1;
break;
}
case OE_Ignore: {
sqlite3VdbeGoto(v, ignoreDest);
break;
}
}
sqlite3VdbeResolveLabel(v, addrRowidOk);
if( ipkTop ){
................................................................................
}
}
}
}
/* Generate code that executes if the new index entry is not unique */
assert( onError==OE_Rollback || onError==OE_Abort || onError==OE_Fail
|| onError==OE_Ignore || onError==OE_Replace );
switch( onError ){
case OE_Rollback:
case OE_Abort:
case OE_Fail: {
sqlite3UniqueConstraint(pParse, onError, pIdx);
break;
}
case OE_Ignore: {
sqlite3VdbeGoto(v, ignoreDest);
break;
}
default: {
Trigger *pTrigger = 0;
assert( onError==OE_Replace );
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sqlite3MultiWrite(pParse);
sqlite3GenerateRowIndexDelete(pParse, pTab, iDataCur, iIdxCur,0,-1);
}
}
seenReplace = 1;
break;
}
#ifndef SQLITE_OMIT_UPSERT
case OE_Update: {
sqlite3UpsertDoUpdate(pParse, pUpsert, pTab, 0, iDataCur, 0);
/* Fall through */
}
#endif
case OE_Ignore: {
sqlite3VdbeGoto(v, ignoreDest);
break;
}
}
sqlite3VdbeResolveLabel(v, addrRowidOk);
if( ipkTop ){
................................................................................
}
}
}
}
/* Generate code that executes if the new index entry is not unique */
assert( onError==OE_Rollback || onError==OE_Abort || onError==OE_Fail
|| onError==OE_Ignore || onError==OE_Replace || onError==OE_Update );
switch( onError ){
case OE_Rollback:
case OE_Abort:
case OE_Fail: {
sqlite3UniqueConstraint(pParse, onError, pIdx);
break;
}
#ifndef SQLITE_OMIT_UPSERT
case OE_Update: {
sqlite3UpsertDoUpdate(pParse, pUpsert, pTab, pIdx, iDataCur, iIdxCur);
/* Fall through */
}
#endif
case OE_Ignore: {
sqlite3VdbeGoto(v, ignoreDest);
break;
}
default: {
Trigger *pTrigger = 0;
assert( onError==OE_Replace );
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Changes to src/sqliteInt.h.
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#define sqlite3WithDelete(x,y) #endif #ifndef SQLITE_OMIT_UPSERT Upsert *sqlite3UpsertNew(sqlite3*,ExprList*,Expr*,ExprList*,Expr*); void sqlite3UpsertDelete(sqlite3*,Upsert*); Upsert *sqlite3UpsertDup(sqlite3*,Upsert*); int sqlite3UpsertAnalyzeTarget(Parse*,SrcList*,Upsert*); #else #define sqlite3UpsertNew(x,y,z,w) ((Upsert*)0) #define sqlite3UpsertDelete(x,y) #define sqlite3UpsertDup(x,y) ((Upsert*)0) #endif |
> |
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#define sqlite3WithDelete(x,y)
#endif
#ifndef SQLITE_OMIT_UPSERT
Upsert *sqlite3UpsertNew(sqlite3*,ExprList*,Expr*,ExprList*,Expr*);
void sqlite3UpsertDelete(sqlite3*,Upsert*);
Upsert *sqlite3UpsertDup(sqlite3*,Upsert*);
int sqlite3UpsertAnalyzeTarget(Parse*,SrcList*,Upsert*);
void sqlite3UpsertDoUpdate(Parse*,Upsert*,Table*,Index*,int,int);
#else
#define sqlite3UpsertNew(x,y,z,w) ((Upsert*)0)
#define sqlite3UpsertDelete(x,y)
#define sqlite3UpsertDup(x,y) ((Upsert*)0)
#endif
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Changes to src/upsert.c.
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pUpsert->pUpsertIdx = pIdx;
return SQLITE_OK;
}
sqlite3ErrorMsg(pParse, "ON CONFLICT clause does not match any "
"PRIMARY KEY or UNIQUE constraint");
return SQLITE_ERROR;
}
#endif /* SQLITE_OMIT_UPSERT */
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pUpsert->pUpsertIdx = pIdx;
return SQLITE_OK;
}
sqlite3ErrorMsg(pParse, "ON CONFLICT clause does not match any "
"PRIMARY KEY or UNIQUE constraint");
return SQLITE_ERROR;
}
/*
** Generate bytecode that does an UPDATE as part of an upsert.
*/
void sqlite3UpsertDoUpdate(
Parse *pParse, /* The parsing and code-generating context */
Upsert *pUpsert, /* The ON CONFLICT clause for the upsert */
Table *pTab, /* The table being updated */
Index *pIdx, /* The UNIQUE constraint that failed */
int iDataCur, /* Cursor for the pTab, table being updated */
int iIdxCur /* Cursor for the pIdx */
){
Vdbe *v = pParse->pVdbe;
assert( v!=0 );
VdbeNoopComment((v, "Begin DO UPDATE of UPSERT"));
VdbeNoopComment((v, "End DO UPDATE of UPSERT"));
}
#endif /* SQLITE_OMIT_UPSERT */
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