Move [7d30880114] to the trunk. Add optimizations to reduce the number of opcodes used for BEFORE UPDATE triggers.
FossilOrigin-Name: 1b7c5250ccb63182324bfc3f1ea28f17b6db357a
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index 334a39a..aae1c3c 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -2059,15 +2059,16 @@
** The Parse.pTriggerPrg list never contains two entries with the same
** values for both pTrigger and orconf.
**
-** The TriggerPrg.oldmask variable is set to a mask of old.* columns
+** The TriggerPrg.aColmask[0] variable is set to a mask of old.* columns
** accessed (or set to 0 for triggers fired as a result of INSERT
-** statements).
+** statements). Similarly, the TriggerPrg.aColmask[1] variable is set to
+** a mask of new.* columns used by the program.
*/
struct TriggerPrg {
Trigger *pTrigger; /* Trigger this program was coded from */
int orconf; /* Default ON CONFLICT policy */
SubProgram *pProgram; /* Program implementing pTrigger/orconf */
- u32 oldmask; /* Mask of old.* columns accessed */
+ u32 aColmask[2]; /* Masks of old.*, new.* columns accessed */
TriggerPrg *pNext; /* Next entry in Parse.pTriggerPrg list */
};
@@ -2139,6 +2140,7 @@
Parse *pToplevel; /* Parse structure for main program (or NULL) */
Table *pTriggerTab; /* Table triggers are being coded for */
u32 oldmask; /* Mask of old.* columns referenced */
+ u32 newmask; /* Mask of new.* columns referenced */
u8 eTriggerOp; /* TK_UPDATE, TK_INSERT or TK_DELETE */
u8 eOrconf; /* Default ON CONFLICT policy for trigger steps */
u8 disableTriggers; /* True to disable triggers */
@@ -2736,7 +2738,7 @@
TriggerStep *sqlite3TriggerDeleteStep(sqlite3*,Token*, Expr*);
void sqlite3DeleteTrigger(sqlite3*, Trigger*);
void sqlite3UnlinkAndDeleteTrigger(sqlite3*,int,const char*);
- u32 sqlite3TriggerOldmask(Parse*,Trigger*,ExprList*,Table*,int);
+ u32 sqlite3TriggerColmask(Parse*,Trigger*,ExprList*,int,int,Table*,int);
# define sqlite3ParseToplevel(p) ((p)->pToplevel ? (p)->pToplevel : (p))
#else
# define sqlite3TriggersExist(B,C,D,E,F) 0
@@ -2747,7 +2749,7 @@
# define sqlite3CodeRowTriggerDirect(A,B,C,D,E,F)
# define sqlite3TriggerList(X, Y) 0
# define sqlite3ParseToplevel(p) p
-# define sqlite3TriggerOldmask(A,B,C,D,E) 0
+# define sqlite3TriggerColmask(A,B,C,D,E,F,G) 0
#endif
int sqlite3JoinType(Parse*, Token*, Token*, Token*);