From 82ebda7fffac8f4c796ef7d36d377bebca620528 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Sat, 22 Jul 2017 20:20:09 -0400 Subject: [PATCH] Fix pg_dump's handling of event triggers. pg_dump with the --clean option failed to emit DROP EVENT TRIGGER commands for event triggers. In a closely related oversight, it also did not emit ALTER OWNER commands for event triggers. Since only superusers can create event triggers, the latter oversight is of little practical consequence ... but if we're going to record an owner for event triggers, then surely pg_dump should preserve it. Per complaint from Greg Atkins. Back-patch to 9.3 where event triggers were introduced. Discussion: https://postgr.es/m/20170722191142.yi4e7tzcg3iacclg@gmail.com --- src/bin/pg_dump/pg_backup_archiver.c | 6 ++++-- src/bin/pg_dump/pg_dump.c | 14 ++++++++++++-- src/bin/pg_dump/t/002_pg_dump.pl | 16 ++++++++-------- 3 files changed, 24 insertions(+), 12 deletions(-) diff --git a/src/bin/pg_dump/pg_backup_archiver.c b/src/bin/pg_dump/pg_backup_archiver.c index 6483563f3d..f2b544871e 100644 --- a/src/bin/pg_dump/pg_backup_archiver.c +++ b/src/bin/pg_dump/pg_backup_archiver.c @@ -3267,6 +3267,7 @@ _getObjectDescription(PQExpBuffer buf, TocEntry *te, ArchiveHandle *AH) strcmp(type, "DATABASE") == 0 || strcmp(type, "PROCEDURAL LANGUAGE") == 0 || strcmp(type, "SCHEMA") == 0 || + strcmp(type, "EVENT TRIGGER") == 0 || strcmp(type, "FOREIGN DATA WRAPPER") == 0 || strcmp(type, "SERVER") == 0 || strcmp(type, "USER MAPPING") == 0) @@ -3311,7 +3312,7 @@ _getObjectDescription(PQExpBuffer buf, TocEntry *te, ArchiveHandle *AH) return; } - write_msg(modulename, "WARNING: don't know how to set owner for object type %s\n", + write_msg(modulename, "WARNING: don't know how to set owner for object type \"%s\"\n", type); } @@ -3470,6 +3471,7 @@ _printTocEntry(ArchiveHandle *AH, TocEntry *te, bool isData, bool acl_pass) strcmp(te->desc, "OPERATOR FAMILY") == 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 || @@ -3505,7 +3507,7 @@ _printTocEntry(ArchiveHandle *AH, TocEntry *te, bool isData, bool acl_pass) } else { - write_msg(modulename, "WARNING: don't know how to set owner for object type %s\n", + write_msg(modulename, "WARNING: don't know how to set owner for object type \"%s\"\n", te->desc); } } diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d1db3702be..479fd89e17 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -16978,6 +16978,7 @@ dumpEventTrigger(Archive *fout, EventTriggerInfo *evtinfo) { DumpOptions *dopt = fout->dopt; PQExpBuffer query; + PQExpBuffer delqry; PQExpBuffer labelq; /* Skip if not to be dumped */ @@ -16985,6 +16986,7 @@ dumpEventTrigger(Archive *fout, EventTriggerInfo *evtinfo) return; query = createPQExpBuffer(); + delqry = createPQExpBuffer(); labelq = createPQExpBuffer(); appendPQExpBufferStr(query, "CREATE EVENT TRIGGER "); @@ -17024,14 +17026,21 @@ dumpEventTrigger(Archive *fout, EventTriggerInfo *evtinfo) } appendPQExpBufferStr(query, ";\n"); } + + appendPQExpBuffer(delqry, "DROP EVENT TRIGGER %s;\n", + fmtId(evtinfo->dobj.name)); + appendPQExpBuffer(labelq, "EVENT TRIGGER %s", fmtId(evtinfo->dobj.name)); if (evtinfo->dobj.dump & DUMP_COMPONENT_DEFINITION) ArchiveEntry(fout, evtinfo->dobj.catId, evtinfo->dobj.dumpId, - evtinfo->dobj.name, NULL, NULL, evtinfo->evtowner, false, + evtinfo->dobj.name, NULL, NULL, + evtinfo->evtowner, false, "EVENT TRIGGER", SECTION_POST_DATA, - query->data, "", NULL, NULL, 0, NULL, NULL); + query->data, delqry->data, NULL, + NULL, 0, + NULL, NULL); if (evtinfo->dobj.dump & DUMP_COMPONENT_COMMENT) dumpComment(fout, labelq->data, @@ -17039,6 +17048,7 @@ dumpEventTrigger(Archive *fout, EventTriggerInfo *evtinfo) evtinfo->dobj.catId, 0, evtinfo->dobj.dumpId); destroyPQExpBuffer(query); + destroyPQExpBuffer(delqry); destroyPQExpBuffer(labelq); } diff --git a/src/bin/pg_dump/t/002_pg_dump.pl b/src/bin/pg_dump/t/002_pg_dump.pl index 1f8db16cf1..d5bfbc797c 100644 --- a/src/bin/pg_dump/t/002_pg_dump.pl +++ b/src/bin/pg_dump/t/002_pg_dump.pl @@ -516,18 +516,19 @@ my %tests = ( only_dump_test_table => 1, test_schema_plus_blobs => 1, }, }, - # catch-all for ALTER ... OWNER (except LARGE OBJECTs) - 'ALTER ... OWNER commands (except LARGE OBJECTs)' => { - regexp => qr/^ALTER (?!LARGE OBJECT)(.*) OWNER TO .*;/m, + # catch-all for ALTER ... OWNER (except post-data objects) + 'ALTER ... OWNER commands (except post-data objects)' => { + regexp => qr/^ALTER (?!EVENT TRIGGER|LARGE OBJECT)(.*) OWNER TO .*;/m, like => {}, # use more-specific options above unlike => { column_inserts => 1, data_only => 1, - section_data => 1, }, }, + section_data => 1, + section_post_data => 1, }, }, - # catch-all for ALTER TABLE ... + # catch-all for ALTER TABLE ... (except OWNER TO) 'ALTER TABLE ... commands' => { - regexp => qr/^ALTER TABLE .*;/m, + regexp => qr/^ALTER TABLE .* (?!OWNER TO)(.*);/m, like => {}, # use more-specific options above unlike => { column_inserts => 1, @@ -543,8 +544,7 @@ my %tests = ( unlike => { no_owner => 1, pg_dumpall_globals => 1, - pg_dumpall_globals_clean => 1, - section_post_data => 1, }, }, + pg_dumpall_globals_clean => 1, }, }, # 'BLOB load (contents are of test_table)' => { # create_order => 14, -- 2.40.0