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Support UPDATE...FROM statements in trigger programs.

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FossilOrigin-Name: 4f6d8d0ebf40029218a1d3b05ea657c0c5953b01c6f0b6a628465aa44c67e7f3
This commit is contained in:
dan
2020-07-14 19:51:01 +00:00
parent f067ae8eba
commit e7877b2d6b
10 changed files with 213 additions and 38 deletions
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7
src/sqliteInt.h
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@@ -3564,6 +3564,7 @@ struct TriggerStep {
Trigger *pTrig; /* The trigger that this step is a part of */
Select *pSelect; /* SELECT statement or RHS of INSERT INTO SELECT ... */
char *zTarget; /* Target table for DELETE, UPDATE, INSERT */
SrcList *pFrom; /* FROM clause for UPDATE statement (if any) */
Expr *pWhere; /* The WHERE clause for DELETE or UPDATE steps */
ExprList *pExprList; /* SET clause for UPDATE */
IdList *pIdList; /* Column names for INSERT */
@@ -4402,13 +4403,14 @@ void sqlite3MaterializeView(Parse*, Table*, Expr*, ExprList*,Expr*,int);
TriggerStep *sqlite3TriggerInsertStep(Parse*,Token*, IdList*,
Select*,u8,Upsert*,
const char*,const char*);
TriggerStep *sqlite3TriggerUpdateStep(Parse*,Token*,ExprList*, Expr*, u8,
const char*,const char*);
TriggerStep *sqlite3TriggerUpdateStep(Parse*,Token*,SrcList*,ExprList*,
Expr*, u8, const char*,const char*);
TriggerStep *sqlite3TriggerDeleteStep(Parse*,Token*, Expr*,
const char*,const char*);
void sqlite3DeleteTrigger(sqlite3*, Trigger*);
void sqlite3UnlinkAndDeleteTrigger(sqlite3*,int,const char*);
u32 sqlite3TriggerColmask(Parse*,Trigger*,ExprList*,int,int,Table*,int);
SrcList *sqlite3TriggerStepSrc(Parse*, TriggerStep*);
# define sqlite3ParseToplevel(p) ((p)->pToplevel ? (p)->pToplevel : (p))
# define sqlite3IsToplevel(p) ((p)->pToplevel==0)
#else
@@ -4422,6 +4424,7 @@ void sqlite3MaterializeView(Parse*, Table*, Expr*, ExprList*,Expr*,int);
# define sqlite3ParseToplevel(p) p
# define sqlite3IsToplevel(p) 1
# define sqlite3TriggerColmask(A,B,C,D,E,F,G) 0
# define sqlite3TriggerStepSrc(A,B) 0
#endif
int sqlite3JoinType(Parse*, Token*, Token*, Token*);