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authorPeter Eisentraut <peter_e@gmx.net>2017-12-08 09:18:18 -0500
committerPeter Eisentraut <peter_e@gmx.net>2017-12-08 09:39:55 -0500
commitee5b595493e1609903d55709853f5276ba85c81d (patch)
tree59dee38ffcb3eb0958cdbc66615653490e9f07df /src/backend/commands/copy.c
parenta8ef4e81e6f2b7ab77aa57b986742feba57d9d86 (diff)
downloadpostgresql-ee5b595493e1609903d55709853f5276ba85c81d.tar.gz
postgresql-ee5b595493e1609903d55709853f5276ba85c81d.zip
Apply identity sequence values on COPY
A COPY into a table should apply identity sequence values just like it does for ordinary defaults. This was previously forgotten, leading to null values being inserted, which in turn would fail because identity columns have not-null constraints. Author: Michael Paquier <michael.paquier@gmail.com> Reported-by: Steven Winfield <steven.winfield@cantabcapital.com> Bug: #14952
Diffstat (limited to 'src/backend/commands/copy.c')
-rw-r--r--src/backend/commands/copy.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/src/backend/commands/copy.c b/src/backend/commands/copy.c
index ef301b6328a..156359476c8 100644
--- a/src/backend/commands/copy.c
+++ b/src/backend/commands/copy.c
@@ -25,6 +25,7 @@
#include "access/sysattr.h"
#include "access/xact.h"
#include "access/xlog.h"
+#include "catalog/dependency.h"
#include "catalog/pg_type.h"
#include "commands/copy.h"
#include "commands/defrem.h"
@@ -3063,8 +3064,19 @@ BeginCopyFrom(ParseState *pstate,
{
/* attribute is NOT to be copied from input */
/* use default value if one exists */
- Expr *defexpr = (Expr *) build_column_default(cstate->rel,
- attnum);
+ Expr *defexpr;
+
+ if (attr[attnum - 1]->attidentity)
+ {
+ NextValueExpr *nve = makeNode(NextValueExpr);
+
+ nve->seqid = getOwnedSequence(RelationGetRelid(cstate->rel),
+ attnum);
+ nve->typeId = attr[attnum - 1]->atttypid;
+ defexpr = (Expr *) nve;
+ }
+ else
+ defexpr = (Expr *) build_column_default(cstate->rel, attnum);
if (defexpr != NULL)
{