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Commitb0284bf

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Create FKs properly when attaching table as partition
Commitf56f8f8 added some code in CloneFkReferencing that's way toolax about a Constraint node it manufactures, not initializing enoughstruct members -- initially_valid in particular was forgotten. Thiscauses some FKs in partitions added by ALTER TABLE ATTACH PARTITION tobe marked as not validated. Set initially_valid true, which fixes thebug.While at it, make the struct initialization more complete. Very similarcode was added in two other places by the same commit; make them allfollow the same pattern for consistency, though no bugs are apparentthere.This bug has never been reported: I only happened to notice whileworking on commit614a406. The test case that was added there withthe improper result is repaired.Backpatch to 12.Discussion:https://postgr.es/m/20221005105523.bhuhkdx4olajboof@alvherre.pgsql
1 parent2fe4c73 commitb0284bf

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2 files changed

+40
-10
lines changed

2 files changed

+40
-10
lines changed

‎src/backend/commands/tablecmds.c

Lines changed: 38 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -10092,14 +10092,22 @@ CloneFkReferenced(Relation parentRel, Relation partitionRel)
1009210092
mapped_confkey[i] = attmap->attnums[confkey[i] - 1];
1009310093

1009410094
fkconstraint = makeNode(Constraint);
10095-
/* for now this is all we need */
10095+
fkconstraint->contype = CONSTRAINT_FOREIGN;
1009610096
fkconstraint->conname = NameStr(constrForm->conname);
10097-
fkconstraint->fk_upd_action = constrForm->confupdtype;
10098-
fkconstraint->fk_del_action = constrForm->confdeltype;
1009910097
fkconstraint->deferrable = constrForm->condeferrable;
1010010098
fkconstraint->initdeferred = constrForm->condeferred;
10101-
fkconstraint->initially_valid = true;
10099+
fkconstraint->location = -1;
10100+
fkconstraint->pktable = NULL;
10101+
/* ->fk_attrs determined below */
10102+
fkconstraint->pk_attrs = NIL;
1010210103
fkconstraint->fk_matchtype = constrForm->confmatchtype;
10104+
fkconstraint->fk_upd_action = constrForm->confupdtype;
10105+
fkconstraint->fk_del_action = constrForm->confdeltype;
10106+
fkconstraint->fk_del_set_cols = NIL;
10107+
fkconstraint->old_conpfeqop = NIL;
10108+
fkconstraint->old_pktable_oid = InvalidOid;
10109+
fkconstraint->skip_validation = false;
10110+
fkconstraint->initially_valid = true;
1010310111

1010410112
/* set up colnames that are used to generate the constraint name */
1010510113
for (int i = 0; i < numfks; i++)
@@ -10317,11 +10325,22 @@ CloneFkReferencing(List **wqueue, Relation parentRel, Relation partRel)
1031710325

1031810326
/* No dice. Set up to create our own constraint */
1031910327
fkconstraint = makeNode(Constraint);
10320-
fkconstraint->fk_upd_action =constrForm->confupdtype;
10321-
fkconstraint->fk_del_action = constrForm->confdeltype;
10328+
fkconstraint->contype =CONSTRAINT_FOREIGN;
10329+
/* ->conname determined below */
1032210330
fkconstraint->deferrable = constrForm->condeferrable;
1032310331
fkconstraint->initdeferred = constrForm->condeferred;
10332+
fkconstraint->location = -1;
10333+
fkconstraint->pktable = NULL;
10334+
/* ->fk_attrs determined below */
10335+
fkconstraint->pk_attrs = NIL;
1032410336
fkconstraint->fk_matchtype = constrForm->confmatchtype;
10337+
fkconstraint->fk_upd_action = constrForm->confupdtype;
10338+
fkconstraint->fk_del_action = constrForm->confdeltype;
10339+
fkconstraint->fk_del_set_cols = NIL;
10340+
fkconstraint->old_conpfeqop = NIL;
10341+
fkconstraint->old_pktable_oid = InvalidOid;
10342+
fkconstraint->skip_validation = false;
10343+
fkconstraint->initially_valid = true;
1032510344
for (int i = 0; i < numfks; i++)
1032610345
{
1032710346
Form_pg_attribute att;
@@ -18517,11 +18536,22 @@ DetachPartitionFinalize(Relation rel, Relation partRel, bool concurrent,
1851718536
* still do), but now we need separate ones of our own.
1851818537
*/
1851918538
fkconstraint = makeNode(Constraint);
18539+
fkconstraint->contype = CONSTRAINT_FOREIGN;
1852018540
fkconstraint->conname = pstrdup(NameStr(conform->conname));
18521-
fkconstraint->fk_upd_action = conform->confupdtype;
18522-
fkconstraint->fk_del_action = conform->confdeltype;
1852318541
fkconstraint->deferrable = conform->condeferrable;
1852418542
fkconstraint->initdeferred = conform->condeferred;
18543+
fkconstraint->location = -1;
18544+
fkconstraint->pktable = NULL;
18545+
fkconstraint->fk_attrs = NIL;
18546+
fkconstraint->pk_attrs = NIL;
18547+
fkconstraint->fk_matchtype = conform->confmatchtype;
18548+
fkconstraint->fk_upd_action = conform->confupdtype;
18549+
fkconstraint->fk_del_action = conform->confdeltype;
18550+
fkconstraint->fk_del_set_cols = NIL;
18551+
fkconstraint->old_conpfeqop = NIL;
18552+
fkconstraint->old_pktable_oid = InvalidOid;
18553+
fkconstraint->skip_validation = false;
18554+
fkconstraint->initially_valid = true;
1852518555

1852618556
createForeignKeyActionTriggers(partRel, conform->confrelid,
1852718557
fkconstraint, fk->conoid,

‎src/test/regress/expected/foreign_key.out

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -2031,7 +2031,7 @@ ORDER BY co.contype, cr.relname, co.conname, p.conname;
20312031
----------------+----------------------------+---------+--------------+----------------------------+--------------+----------------
20322032
part1_self_fk | parted_self_fk_id_abc_fkey | f | t | parted_self_fk_id_abc_fkey | t | parted_self_fk
20332033
part2_self_fk | parted_self_fk_id_abc_fkey | f | t | parted_self_fk_id_abc_fkey | t | parted_self_fk
2034-
part32_self_fk | parted_self_fk_id_abc_fkey | f |f | parted_self_fk_id_abc_fkey | t | parted_self_fk
2034+
part32_self_fk | parted_self_fk_id_abc_fkey | f |t | parted_self_fk_id_abc_fkey | t | parted_self_fk
20352035
part33_self_fk | parted_self_fk_id_abc_fkey | f | t | parted_self_fk_id_abc_fkey | t | parted_self_fk
20362036
part3_self_fk | parted_self_fk_id_abc_fkey | f | t | parted_self_fk_id_abc_fkey | t | parted_self_fk
20372037
parted_self_fk | parted_self_fk_id_abc_fkey | f | t | | | parted_self_fk
@@ -2060,7 +2060,7 @@ ORDER BY co.contype, cr.relname, co.conname, p.conname;
20602060
----------------+----------------------------+---------+--------------+----------------------------+--------------+----------------
20612061
part1_self_fk | parted_self_fk_id_abc_fkey | f | t | parted_self_fk_id_abc_fkey | t | parted_self_fk
20622062
part2_self_fk | parted_self_fk_id_abc_fkey | f | t | parted_self_fk_id_abc_fkey | t | parted_self_fk
2063-
part32_self_fk | parted_self_fk_id_abc_fkey | f |f | parted_self_fk_id_abc_fkey | t | parted_self_fk
2063+
part32_self_fk | parted_self_fk_id_abc_fkey | f |t | parted_self_fk_id_abc_fkey | t | parted_self_fk
20642064
part33_self_fk | parted_self_fk_id_abc_fkey | f | t | parted_self_fk_id_abc_fkey | t | parted_self_fk
20652065
part3_self_fk | parted_self_fk_id_abc_fkey | f | t | parted_self_fk_id_abc_fkey | t | parted_self_fk
20662066
parted_self_fk | parted_self_fk_id_abc_fkey | f | t | | | parted_self_fk

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