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Commit5040c96

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Fix corruption of pg_shdepend when copying deps from template database
Using for a new database a template database with shared dependenciesthat need to be copied over was causing a corruption of pg_shdependbecause of an off-by-one computation error of the index number used forthe values inserted with a slot.Issue introduced bye3931d0. Monitoring the rest of the code, there areno similar mistakes.Reported-by: Sven KlemmAuthor: Aleksander AlekseevReviewed-by: Daniel Gustafsson, Michael PaquierDiscussion:https://postgr.es/m/CAJ7c6TP0AowkUgNL6zcAK-s5HYsVHVBRWfu69FRubPpfwZGM9A@mail.gmail.comBackpatch-through: 14
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‎src/backend/catalog/pg_shdepend.c

Lines changed: 7 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -909,13 +909,13 @@ copyTemplateDependencies(Oid templateDbId, Oid newDbId)
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910910
shdep= (Form_pg_shdepend)GETSTRUCT(tup);
911911

912-
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_dbid]=ObjectIdGetDatum(newDbId);
913-
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_classid]=shdep->classid;
914-
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_objid]=shdep->objid;
915-
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_objsubid]=shdep->objsubid;
916-
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_refclassid]=shdep->refclassid;
917-
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_refobjid]=shdep->refobjid;
918-
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_deptype]=shdep->deptype;
912+
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_dbid-1]=ObjectIdGetDatum(newDbId);
913+
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_classid-1]=shdep->classid;
914+
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_objid-1]=shdep->objid;
915+
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_objsubid-1]=shdep->objsubid;
916+
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_refclassid-1]=shdep->refclassid;
917+
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_refobjid-1]=shdep->refobjid;
918+
slot[slot_stored_count]->tts_values[Anum_pg_shdepend_deptype-1]=shdep->deptype;
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920920
ExecStoreVirtualTuple(slot[slot_stored_count]);
921921
slot_stored_count++;

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