Avoid having to list all the possible object types twice. Instead, only
_getObjectDescription() needs to know about specific object types. It
communicates back to _printTocEntry() whether an owner is to be set.
In passing, remove the logic to use ALTER TABLE to set the owner of
views and sequences. This is no longer necessary. Furthermore, if
pg_dump doesn't recognize the object type, this is now a fatal error,
not a warning.From ef05e1dcecbdd51974c2dad0c552b314a7c00f4c Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <pe...@eisentraut.org>
Date: Mon, 24 Oct 2022 11:46:37 +0200
Subject: [PATCH] pg_dump: Refactor code that constructs ALTER ... OWNER TO
commands
Avoid having to list all the possible object types twice. Instead,
only _getObjectDescription() needs to know about specific object
types. It communicates back to _printTocEntry() whether an owner is
to be set.
In passing, remove the logic to use ALTER TABLE to set the owner of
views and sequences. This is no longer necessary. Furthermore, if
pg_dump doesn't recognize the object type, this is now a fatal error,
not a warning.
---
src/bin/pg_dump/pg_backup_archiver.c | 130 ++++++++++-----------------
1 file changed, 47 insertions(+), 83 deletions(-)
diff --git a/src/bin/pg_dump/pg_backup_archiver.c
b/src/bin/pg_dump/pg_backup_archiver.c
index 233198afc0c9..f39c0fa36fdc 100644
--- a/src/bin/pg_dump/pg_backup_archiver.c
+++ b/src/bin/pg_dump/pg_backup_archiver.c
@@ -72,7 +72,7 @@ typedef struct _parallelReadyList
static ArchiveHandle *_allocAH(const char *FileSpec, const ArchiveFormat fmt,
const int
compression, bool dosync, ArchiveMode mode,
SetupWorkerPtrType
setupWorkerPtr);
-static void _getObjectDescription(PQExpBuffer buf, TocEntry *te);
+static void _getObjectDescription(PQExpBuffer buf, const TocEntry *te);
static void _printTocEntry(ArchiveHandle *AH, TocEntry *te, bool isData);
static char *sanitize_line(const char *str, bool want_hyphen);
static void _doSetFixedOutputState(ArchiveHandle *AH);
@@ -3398,27 +3398,27 @@ _selectTableAccessMethod(ArchiveHandle *AH, const char
*tableam)
* Extract an object description for a TOC entry, and append it to buf.
*
* This is used for ALTER ... OWNER TO.
+ *
+ * If the object type has no owner, do nothing.
*/
static void
-_getObjectDescription(PQExpBuffer buf, TocEntry *te)
+_getObjectDescription(PQExpBuffer buf, const TocEntry *te)
{
const char *type = te->desc;
- /* Use ALTER TABLE for views and sequences */
- if (strcmp(type, "VIEW") == 0 || strcmp(type, "SEQUENCE") == 0 ||
- strcmp(type, "MATERIALIZED VIEW") == 0)
- type = "TABLE";
-
/* objects that don't require special decoration */
if (strcmp(type, "COLLATION") == 0 ||
strcmp(type, "CONVERSION") == 0 ||
strcmp(type, "DOMAIN") == 0 ||
- strcmp(type, "TABLE") == 0 ||
- strcmp(type, "TYPE") == 0 ||
strcmp(type, "FOREIGN TABLE") == 0 ||
+ strcmp(type, "MATERIALIZED VIEW") == 0 ||
+ strcmp(type, "SEQUENCE") == 0 ||
+ strcmp(type, "STATISTICS") == 0 ||
+ strcmp(type, "TABLE") == 0 ||
strcmp(type, "TEXT SEARCH DICTIONARY") == 0 ||
strcmp(type, "TEXT SEARCH CONFIGURATION") == 0 ||
- strcmp(type, "STATISTICS") == 0 ||
+ strcmp(type, "TYPE") == 0 ||
+ strcmp(type, "VIEW") == 0 ||
/* non-schema-specified objects */
strcmp(type, "DATABASE") == 0 ||
strcmp(type, "PROCEDURAL LANGUAGE") == 0 ||
@@ -3427,33 +3427,28 @@ _getObjectDescription(PQExpBuffer buf, TocEntry *te)
strcmp(type, "FOREIGN DATA WRAPPER") == 0 ||
strcmp(type, "SERVER") == 0 ||
strcmp(type, "PUBLICATION") == 0 ||
- strcmp(type, "SUBSCRIPTION") == 0 ||
- strcmp(type, "USER MAPPING") == 0)
+ strcmp(type, "SUBSCRIPTION") == 0)
{
appendPQExpBuffer(buf, "%s ", type);
if (te->namespace && *te->namespace)
appendPQExpBuffer(buf, "%s.", fmtId(te->namespace));
appendPQExpBufferStr(buf, fmtId(te->tag));
- return;
}
-
/* BLOBs just have a name, but it's numeric so must not use fmtId */
- if (strcmp(type, "BLOB") == 0)
+ else if (strcmp(type, "BLOB") == 0)
{
appendPQExpBuffer(buf, "LARGE OBJECT %s", te->tag);
- return;
}
-
/*
* These object types require additional decoration. Fortunately, the
* information needed is exactly what's in the DROP command.
*/
- if (strcmp(type, "AGGREGATE") == 0 ||
- strcmp(type, "FUNCTION") == 0 ||
- strcmp(type, "OPERATOR") == 0 ||
- strcmp(type, "OPERATOR CLASS") == 0 ||
- strcmp(type, "OPERATOR FAMILY") == 0 ||
- strcmp(type, "PROCEDURE") == 0)
+ else if (strcmp(type, "AGGREGATE") == 0 ||
+ strcmp(type, "FUNCTION") == 0 ||
+ strcmp(type, "OPERATOR") == 0 ||
+ strcmp(type, "OPERATOR CLASS") == 0 ||
+ strcmp(type, "OPERATOR FAMILY") == 0 ||
+ strcmp(type, "PROCEDURE") == 0)
{
/* Chop "DROP " off the front and make a modifiable copy */
char *first = pg_strdup(te->dropStmt + 5);
@@ -3472,9 +3467,24 @@ _getObjectDescription(PQExpBuffer buf, TocEntry *te)
free(first);
return;
}
-
- pg_log_warning("don't know how to set owner for object type \"%s\"",
- type);
+ /* these object types don't have separate owners */
+ else if (strcmp(type, "CAST") == 0 ||
+ strcmp(type, "CHECK CONSTRAINT") == 0 ||
+ strcmp(type, "CONSTRAINT") == 0 ||
+ strcmp(type, "DATABASE PROPERTIES") == 0 ||
+ strcmp(type, "DEFAULT") == 0 ||
+ strcmp(type, "FK CONSTRAINT") == 0 ||
+ strcmp(type, "INDEX") == 0 ||
+ strcmp(type, "RULE") == 0 ||
+ strcmp(type, "TRIGGER") == 0 ||
+ strcmp(type, "ROW SECURITY") == 0 ||
+ strcmp(type, "POLICY") == 0 ||
+ strcmp(type, "USER MAPPING") == 0)
+ {
+ /* do nothing */
+ }
+ else
+ pg_fatal("don't know how to set owner for object type \"%s\"",
type);
}
/*
@@ -3575,8 +3585,7 @@ _printTocEntry(ArchiveHandle *AH, TocEntry *te, bool
isData)
* instead issue an ALTER OWNER command. Schema "public" is special;
when
* a dump emits a comment in lieu of creating it, we use ALTER OWNER
even
* when using SET SESSION for all other objects. We assume that
anything
- * without a DROP command is not a separately ownable object. All the
- * categories with DROP commands must appear in one list or the other.
+ * without a DROP command is not a separately ownable object.
*/
if (!ropt->noOwner &&
(!ropt->use_setsessauth ||
@@ -3585,62 +3594,17 @@ _printTocEntry(ArchiveHandle *AH, TocEntry *te, bool
isData)
te->owner && strlen(te->owner) > 0 &&
te->dropStmt && strlen(te->dropStmt) > 0)
{
- if (strcmp(te->desc, "AGGREGATE") == 0 ||
- strcmp(te->desc, "BLOB") == 0 ||
- strcmp(te->desc, "COLLATION") == 0 ||
- strcmp(te->desc, "CONVERSION") == 0 ||
- strcmp(te->desc, "DATABASE") == 0 ||
- strcmp(te->desc, "DOMAIN") == 0 ||
- strcmp(te->desc, "FUNCTION") == 0 ||
- strcmp(te->desc, "OPERATOR") == 0 ||
- strcmp(te->desc, "OPERATOR CLASS") == 0 ||
- strcmp(te->desc, "OPERATOR FAMILY") == 0 ||
- strcmp(te->desc, "PROCEDURE") == 0 ||
- strcmp(te->desc, "PROCEDURAL LANGUAGE") == 0 ||
- strcmp(te->desc, "SCHEMA") == 0 ||
- strcmp(te->desc, "EVENT TRIGGER") == 0 ||
- strcmp(te->desc, "TABLE") == 0 ||
- strcmp(te->desc, "TYPE") == 0 ||
- strcmp(te->desc, "VIEW") == 0 ||
- strcmp(te->desc, "MATERIALIZED VIEW") == 0 ||
- strcmp(te->desc, "SEQUENCE") == 0 ||
- strcmp(te->desc, "FOREIGN TABLE") == 0 ||
- strcmp(te->desc, "TEXT SEARCH DICTIONARY") == 0 ||
- strcmp(te->desc, "TEXT SEARCH CONFIGURATION") == 0 ||
- strcmp(te->desc, "FOREIGN DATA WRAPPER") == 0 ||
- strcmp(te->desc, "SERVER") == 0 ||
- strcmp(te->desc, "STATISTICS") == 0 ||
- strcmp(te->desc, "PUBLICATION") == 0 ||
- strcmp(te->desc, "SUBSCRIPTION") == 0)
- {
- PQExpBuffer temp = createPQExpBuffer();
+ PQExpBufferData temp;
- appendPQExpBufferStr(temp, "ALTER ");
- _getObjectDescription(temp, te);
- appendPQExpBuffer(temp, " OWNER TO %s;",
fmtId(te->owner));
- ahprintf(AH, "%s\n\n", temp->data);
- destroyPQExpBuffer(temp);
- }
- else if (strcmp(te->desc, "CAST") == 0 ||
- strcmp(te->desc, "CHECK CONSTRAINT") == 0 ||
- strcmp(te->desc, "CONSTRAINT") == 0 ||
- strcmp(te->desc, "DATABASE PROPERTIES") == 0 ||
- strcmp(te->desc, "DEFAULT") == 0 ||
- strcmp(te->desc, "FK CONSTRAINT") == 0 ||
- strcmp(te->desc, "INDEX") == 0 ||
- strcmp(te->desc, "RULE") == 0 ||
- strcmp(te->desc, "TRIGGER") == 0 ||
- strcmp(te->desc, "ROW SECURITY") == 0 ||
- strcmp(te->desc, "POLICY") == 0 ||
- strcmp(te->desc, "USER MAPPING") == 0)
- {
- /* these object types don't have separate owners */
- }
- else
- {
- pg_log_warning("don't know how to set owner for object
type \"%s\"",
- te->desc);
- }
+ initPQExpBuffer(&temp);
+ _getObjectDescription(&temp, te);
+ /*
+ * If _getObjectDescription() didn't fill the buffer, then
there is no
+ * owner.
+ */
+ if (temp.data[0])
+ ahprintf(AH, "ALTER %s OWNER TO %s;\n\n", temp.data,
fmtId(te->owner));
+ termPQExpBuffer(&temp);
}
/*
--
2.37.3
