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Foreign key cascade planning for DELETE and UPDATE queries (#13823)
Signed-off-by: Harshit Gangal <[email protected]> Signed-off-by: Manan Gupta <[email protected]> Co-authored-by: Manan Gupta <[email protected]>
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,23 @@ | ||
create table u_t1 | ||
( | ||
id bigint, | ||
col1 bigint, | ||
index(col1), | ||
primary key (id) | ||
) Engine = InnoDB; | ||
|
||
create table u_t2 | ||
( | ||
id bigint, | ||
col2 bigint, | ||
primary key (id), | ||
foreign key (col2) references u_t1 (col1) on delete set null on update set null | ||
) Engine = InnoDB; | ||
|
||
create table u_t3 | ||
( | ||
id bigint, | ||
col3 bigint, | ||
primary key (id), | ||
foreign key (col3) references u_t1 (col1) on delete cascade on update cascade | ||
) Engine = InnoDB; |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,8 @@ | ||
{ | ||
"sharded": false, | ||
"foreignKeyMode": "FK_MANAGED", | ||
"tables": { | ||
"u_a": {}, | ||
"u_b": {} | ||
} | ||
} |
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