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Clarify a foreign key error message

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Clarify the message about type mismatch in foreign key definition to
indicate which column the referencing and which is the referenced one.

Reported-by: Jian He <jian.universality@gmail.com>
Discussion: https://www.postgresql.org/message-id/CACJufxEL82ao-aXOa=d_-Xip0bix-qdSyNc9fcWxOdkEZFko8w@mail.gmail.com
This commit is contained in:
Peter Eisentraut
2024-11-07 11:13:06 +01:00
parent 987027bcc0
commit d7a2b5bd87
5 changed files with 39 additions and 39 deletions
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2
src/backend/commands/tablecmds.c
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@ -9961,7 +9961,7 @@ ATAddForeignKeyConstraint(List **wqueue, AlteredTableInfo *tab, Relation rel,
(errcode(ERRCODE_DATATYPE_MISMATCH),
errmsg("foreign key constraint \"%s\" cannot be implemented",
fkconstraint->conname),
errdetail("Key columns \"%s\" and \"%s\" "
errdetail("Key columns \"%s\" of the referencing table and \"%s\" of the referenced table "
"are of incompatible types: %s and %s.",
strVal(list_nth(fkconstraint->fk_attrs, i)),
strVal(list_nth(fkconstraint->pk_attrs, i)),