database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-11 01:42:22 +03:00
Code Activity

If recursive-triggers are enabled, fire DELETE triggers if database rows are removed as a result of OR REPLACE conflict resolution.

Browse Source 
FossilOrigin-Name: 85cb0c94a63eda5f059ebe40887c7af9b4869893
This commit is contained in:
dan
2009-09-08 15:55:15 +00:00
parent 345ba7db59
commit 2283d46cd6
6 changed files with 255 additions and 90 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
src/insert.c
View File

@@ -1241,7 +1241,26 @@ void sqlite3GenerateConstraintChecks(
break;
}
case OE_Replace: {
sqlite3GenerateRowIndexDelete(pParse, pTab, baseCur, 0);
/* If there are DELETE triggers on this table and the
** recursive-triggers flag is set, call GenerateRowDelete() to
** remove the conflicting row from the the table. This will fire
** the triggers and remove both the table and index b-tree entries.
**
** Otherwise, if there are no triggers or the recursive-triggers
** flag is not set, call GenerateRowIndexDelete(). This removes
** the index b-tree entries only. The table b-tree entry will be
** replaced by the new entry when it is inserted. */
Trigger *pTrigger = 0;
if( pParse->db->flags&SQLITE_RecTriggers ){
pTrigger = sqlite3TriggersExist(pParse, pTab, TK_DELETE, 0, 0);
}
if( pTrigger ){
sqlite3GenerateRowDelete(
pParse, pTab, baseCur, regRowid, 0, pTrigger, OE_Replace
);
}else{
sqlite3GenerateRowIndexDelete(pParse, pTab, baseCur, 0);
}
seenReplace = 1;
break;
}
@@ -1299,7 +1318,6 @@ void sqlite3GenerateConstraintChecks(
else if( onError==OE_Fail ) onError = OE_Abort;
}
/* Check to see if the new index entry will be unique */
regR = sqlite3GetTempReg(pParse);
sqlite3VdbeAddOp2(v, OP_SCopy, regOldRowid, regR);
@@ -1342,8 +1360,14 @@ void sqlite3GenerateConstraintChecks(
break;
}
default: {
Trigger *pTrigger = 0;
assert( onError==OE_Replace );
sqlite3GenerateRowDelete(pParse, pTab, baseCur, regR, 0);
if( pParse->db->flags&SQLITE_RecTriggers ){
pTrigger = sqlite3TriggersExist(pParse, pTab, TK_DELETE, 0, 0);
}
sqlite3GenerateRowDelete(
pParse, pTab, baseCur, regR, 0, pTrigger, OE_Replace
);
seenReplace = 1;
break;
}