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Overview
| Comment: | Remove an unused branch in the FK logic. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | dropViewNoStat |
| Files: | files | file ages | folders |
| SHA3-256: |
523ff77925f1da361cf31e3fc82bcb17 |
| User & Date: | drh 2018-07-22 00:45:11 |
Context
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2018-07-27
| ||
| 22:55 | When doing a DROP VIEW do not try to delete entries from the sqlite_stat1 table as there are none. check-in: 7efdba2b user: drh tags: trunk | |
|
2018-07-22
| ||
| 00:45 | Remove an unused branch in the FK logic. Closed-Leaf check-in: 523ff779 user: drh tags: dropViewNoStat | |
|
2018-07-20
| ||
| 20:56 | When dropping a view, skip trying to delete from 'sqlite_stat*'. check-in: 2f5be3a2 user: mistachkin tags: dropViewNoStat | |
Changes
Changes to src/fkey.c.
706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 |
**
** then the equivalent of "DELETE FROM <tbl>" is executed before dropping
** the table from the database. Triggers are disabled while running this
** DELETE, but foreign key actions are not.
*/
void sqlite3FkDropTable(Parse *pParse, SrcList *pName, Table *pTab){
sqlite3 *db = pParse->db;
if( (db->flags&SQLITE_ForeignKeys) && !IsVirtual(pTab) && !pTab->pSelect ){
int iSkip = 0;
Vdbe *v = sqlite3GetVdbe(pParse);
assert( v ); /* VDBE has already been allocated */
if( sqlite3FkReferences(pTab)==0 ){
/* Search for a deferred foreign key constraint for which this table
** is the child table. If one cannot be found, return without
** generating any VDBE code. If one can be found, then jump over
** the entire DELETE if there are no outstanding deferred constraints
** when this statement is run. */
FKey *p;
|
| > |
706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 |
**
** then the equivalent of "DELETE FROM <tbl>" is executed before dropping
** the table from the database. Triggers are disabled while running this
** DELETE, but foreign key actions are not.
*/
void sqlite3FkDropTable(Parse *pParse, SrcList *pName, Table *pTab){
sqlite3 *db = pParse->db;
if( (db->flags&SQLITE_ForeignKeys) && !IsVirtual(pTab) ){
int iSkip = 0;
Vdbe *v = sqlite3GetVdbe(pParse);
assert( v ); /* VDBE has already been allocated */
assert( pTab->pSelect==0 ); /* Not a view */
if( sqlite3FkReferences(pTab)==0 ){
/* Search for a deferred foreign key constraint for which this table
** is the child table. If one cannot be found, return without
** generating any VDBE code. If one can be found, then jump over
** the entire DELETE if there are no outstanding deferred constraints
** when this statement is run. */
FKey *p;
|