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FossilOrigin-Name: e272dc2b1c0edab59a40f32c77c81a3e636937280524161eff5669cb0046ad84
This commit is contained in:
dan
2018-08-15 20:28:39 +00:00
parent 356afab163
commit 5be60c55e8
8 changed files with 143 additions and 36 deletions
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34
src/trigger.c
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@@ -428,7 +428,7 @@ static TriggerStep *triggerStepAllocate(
** body of a trigger.
*/
TriggerStep *sqlite3TriggerInsertStep(
sqlite3 *db, /* The database connection */
Parse *pParse, /* Parser */
Token *pTableName, /* Name of the table into which we insert */
IdList *pColumn, /* List of columns in pTableName to insert into */
Select *pSelect, /* A SELECT statement that supplies values */
@@ -437,13 +437,19 @@ TriggerStep *sqlite3TriggerInsertStep(
const char *zStart, /* Start of SQL text */
const char *zEnd /* End of SQL text */
){
sqlite3 *db = pParse->db;
TriggerStep *pTriggerStep;
assert(pSelect != 0 || db->mallocFailed);
pTriggerStep = triggerStepAllocate(db, TK_INSERT, pTableName, zStart, zEnd);
if( pTriggerStep ){
pTriggerStep->pSelect = sqlite3SelectDup(db, pSelect, EXPRDUP_REDUCE);
if( IN_RENAME_COLUMN ){
pTriggerStep->pSelect = pSelect;
pSelect = 0;
}else{
pTriggerStep->pSelect = sqlite3SelectDup(db, pSelect, EXPRDUP_REDUCE);
}
pTriggerStep->pIdList = pColumn;
pTriggerStep->pUpsert = pUpsert;
pTriggerStep->orconf = orconf;
@@ -464,7 +470,7 @@ TriggerStep *sqlite3TriggerInsertStep(
** sees an UPDATE statement inside the body of a CREATE TRIGGER.
*/
TriggerStep *sqlite3TriggerUpdateStep(
sqlite3 *db, /* The database connection */
Parse *pParse, /* Parser */
Token *pTableName, /* Name of the table to be updated */
ExprList *pEList, /* The SET clause: list of column and new values */
Expr *pWhere, /* The WHERE clause */
@@ -472,12 +478,20 @@ TriggerStep *sqlite3TriggerUpdateStep(
const char *zStart, /* Start of SQL text */
const char *zEnd /* End of SQL text */
){
sqlite3 *db = pParse->db;
TriggerStep *pTriggerStep;
pTriggerStep = triggerStepAllocate(db, TK_UPDATE, pTableName, zStart, zEnd);
if( pTriggerStep ){
pTriggerStep->pExprList = sqlite3ExprListDup(db, pEList, EXPRDUP_REDUCE);
pTriggerStep->pWhere = sqlite3ExprDup(db, pWhere, EXPRDUP_REDUCE);
if( IN_RENAME_COLUMN ){
pTriggerStep->pExprList = pEList;
pTriggerStep->pWhere = pWhere;
pEList = 0;
pWhere = 0;
}else{
pTriggerStep->pExprList = sqlite3ExprListDup(db, pEList, EXPRDUP_REDUCE);
pTriggerStep->pWhere = sqlite3ExprDup(db, pWhere, EXPRDUP_REDUCE);
}
pTriggerStep->orconf = orconf;
}
sqlite3ExprListDelete(db, pEList);
@@ -491,17 +505,23 @@ TriggerStep *sqlite3TriggerUpdateStep(
** sees a DELETE statement inside the body of a CREATE TRIGGER.
*/
TriggerStep *sqlite3TriggerDeleteStep(
sqlite3 *db, /* Database connection */
Parse *pParse, /* Parser */
Token *pTableName, /* The table from which rows are deleted */
Expr *pWhere, /* The WHERE clause */
const char *zStart, /* Start of SQL text */
const char *zEnd /* End of SQL text */
){
sqlite3 *db = pParse->db;
TriggerStep *pTriggerStep;
pTriggerStep = triggerStepAllocate(db, TK_DELETE, pTableName, zStart, zEnd);
if( pTriggerStep ){
pTriggerStep->pWhere = sqlite3ExprDup(db, pWhere, EXPRDUP_REDUCE);
if( IN_RENAME_COLUMN ){
pTriggerStep->pWhere = pWhere;
pWhere = 0;
}else{
pTriggerStep->pWhere = sqlite3ExprDup(db, pWhere, EXPRDUP_REDUCE);
}
pTriggerStep->orconf = OE_Default;
}
sqlite3ExprDelete(db, pWhere);