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Fill in extraUpdatedCols in logical replication 

The extraUpdatedCols field of the target RTE records which generated
columns are affected by an update.  This is used in a variety of
places, including per-column triggers and foreign data wrappers.  When
an update was initiated by a logical replication subscription, this
field was not filled in, so such an update would not affect generated
columns in a way that is consistent with normal updates.  To fix,
factor out some code from analyze.c to fill in extraUpdatedCols in the
logical replication worker as well.

Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/b05e781a-fa16-6b52-6738-761181204567@2ndquadrant.com
This commit is contained in:
Peter Eisentraut 2020-02-17 15:19:58 +01:00
parent f4ae722141
commit ad3ae64770
3 changed files with 17 additions and 6 deletions
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18
src/backend/parser/analyze.c
View File

@ -2346,10 +2346,18 @@ transformUpdateTargetList(ParseState *pstate, List *origTlist)
if (orig_tl != NULL)
elog(ERROR, "UPDATE target count mismatch --- internal error");
/*
* Record in extraUpdatedCols generated columns referencing updated base
* columns.
*/
fill_extraUpdatedCols(target_rte, tupdesc);
return tlist;
}
/*
* Record in extraUpdatedCols generated columns referencing updated base
* columns.
*/
void
fill_extraUpdatedCols(RangeTblEntry *target_rte, TupleDesc tupdesc)
{
if (tupdesc->constr &&
tupdesc->constr->has_generated_stored)
{
@ -2371,8 +2379,6 @@ transformUpdateTargetList(ParseState *pstate, List *origTlist)
defval.adnum - FirstLowInvalidHeapAttributeNumber);
}
}
return tlist;
}
/*

3
src/backend/replication/logical/worker.c
View File

@ -42,6 +42,7 @@
#include "miscadmin.h"
#include "nodes/makefuncs.h"
#include "optimizer/optimizer.h"
#include "parser/analyze.h"
#include "parser/parse_relation.h"
#include "pgstat.h"
#include "postmaster/bgworker.h"
@ -737,6 +738,8 @@ apply_handle_update(StringInfo s)
i + 1 - FirstLowInvalidHeapAttributeNumber);
}
fill_extraUpdatedCols(target_rte, RelationGetDescr(rel->localrel));
PushActiveSnapshot(GetTransactionSnapshot());
ExecOpenIndices(estate->es_result_relation_info, false);

2
src/include/parser/analyze.h
View File

@ -46,4 +46,6 @@ extern void applyLockingClause(Query *qry, Index rtindex,
extern List *BuildOnConflictExcludedTargetlist(Relation targetrel,
Index exclRelIndex);
extern void fill_extraUpdatedCols(RangeTblEntry *target_rte, TupleDesc tupdesc);
#endif /* ANALYZE_H */