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Fix pg_dump assertion failure when dumping pg_catalog.

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Commit 396d348b04 did not account for the default collation.

Also, use pg_log_warning() instead of Assert().

Discussion: https://postgr.es/m/ce071503fee88334aa70f360e6e4ea14d48305ee.camel%40j-davis.com
Reviewed-by: Michael Paquier
Backpatch-through: 15
This commit is contained in:
Jeff Davis 2023-08-22 11:21:36 -07:00
parent a684581085
commit 37188cea0c
2 changed files with 63 additions and 18 deletions
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73
src/bin/pg_dump/pg_dump.c
View File

@ -13415,6 +13415,18 @@ dumpCollation(Archive *fout, const CollInfo *collinfo)
else
collctype = NULL;
/*
* Before version 15, collcollate and collctype were of type NAME and
* non-nullable. Treat empty strings as NULL for consistency.
*/
if (fout->remoteVersion < 150000)
{
if (collcollate[0] == '\0')
collcollate = NULL;
if (collctype[0] == '\0')
collctype = NULL;
}
if (!PQgetisnull(res, 0, i_colliculocale))
colliculocale = PQgetvalue(res, 0, i_colliculocale);
else
@ -13446,35 +13458,60 @@ dumpCollation(Archive *fout, const CollInfo *collinfo)
if (strcmp(PQgetvalue(res, 0, i_collisdeterministic), "f") == 0)
appendPQExpBufferStr(q, ", deterministic = false");
if (colliculocale != NULL)
if (collprovider[0] == 'd')
{
appendPQExpBufferStr(q, ", locale = ");
appendStringLiteralAH(q, colliculocale, fout);
}
else
{
Assert(collcollate != NULL);
Assert(collctype != NULL);
if (collcollate || collctype || colliculocale || collicurules)
pg_log_warning("invalid collation \"%s\"", qcollname);
if (strcmp(collcollate, collctype) == 0)
/* no locale -- the default collation cannot be reloaded anyway */
}
else if (collprovider[0] == 'i')
{
if (fout->remoteVersion >= 150000)
{
if (collcollate || collctype || !colliculocale)
pg_log_warning("invalid collation \"%s\"", qcollname);
appendPQExpBufferStr(q, ", locale = ");
appendStringLiteralAH(q, colliculocale ? colliculocale : "",
fout);
}
else
{
if (!collcollate || !collctype || colliculocale ||
strcmp(collcollate, collctype) != 0)
pg_log_warning("invalid collation \"%s\"", qcollname);
appendPQExpBufferStr(q, ", locale = ");
appendStringLiteralAH(q, collcollate ? collcollate : "", fout);
}
if (collicurules)
{
appendPQExpBufferStr(q, ", rules = ");
appendStringLiteralAH(q, collicurules ? collicurules : "", fout);
}
}
else if (collprovider[0] == 'c')
{
if (colliculocale || collicurules || !collcollate || !collctype)
pg_log_warning("invalid collation \"%s\"", qcollname);
if (collcollate && collctype && strcmp(collcollate, collctype) == 0)
{
appendPQExpBufferStr(q, ", locale = ");
appendStringLiteralAH(q, collcollate, fout);
appendStringLiteralAH(q, collcollate ? collcollate : "", fout);
}
else
{
appendPQExpBufferStr(q, ", lc_collate = ");
appendStringLiteralAH(q, collcollate, fout);
appendStringLiteralAH(q, collcollate ? collcollate : "", fout);
appendPQExpBufferStr(q, ", lc_ctype = ");
appendStringLiteralAH(q, collctype, fout);
appendStringLiteralAH(q, collctype ? collctype : "", fout);
}
}
if (collicurules)
{
appendPQExpBufferStr(q, ", rules = ");
appendStringLiteralAH(q, collicurules, fout);
}
else
pg_fatal("unrecognized collation provider '%c'", collprovider[0]);
/*
* For binary upgrade, carry over the collation version. For normal

8
src/bin/pg_dump/t/002_pg_dump.pl
View File

@ -4769,6 +4769,14 @@ $node->command_fails_like(
qr/pg_dumpall: error: improper qualified name \(too many dotted names\): myhost\.mydb/,
'pg_dumpall: option --exclude-database rejects multipart database names');
##############################################################
# Test dumping pg_catalog (for research -- cannot be reloaded)
$node->command_ok(
[ 'pg_dump', '-p', "$port", '-n', 'pg_catalog' ],
'pg_dump: option -n pg_catalog'
);
#########################################
# Test valid database exclusion patterns