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Fix old pg_dump oversight: default values for domains really need to be dumped 

by decompiling the typdefaultbin expression, not just printing the typdefault
text which may be out-of-date or assume the wrong schema search path.  (It's
the same hazard as for adbin vs adsrc in column defaults.)  The catalogs.sgml
spec for pg_type implies that the correct procedure is to look to
typdefaultbin first and consider typdefault only if typdefaultbin is NULL.
I made dumping of both domains and base types do that, even though in the
current backend code typdefaultbin is always correct for domains and
typdefault for base types --- might as well try to future-proof it a little.
Per bug report from Alexander Galler.
This commit is contained in:
Tom Lane 2006-02-21 18:01:32 +00:00
parent af49a1634f
commit 3666260ffd
1 changed files with 66 additions and 24 deletions
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90
src/bin/pg_dump/pg_dump.c
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@ -12,7 +12,7 @@
* by PostgreSQL
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.429 2006/02/12 06:11:51 momjian Exp $
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.430 2006/02/21 18:01:32 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -4690,10 +4690,11 @@ dumpBaseType(Archive *fout, TypeInfo *tinfo)
Oid typsendoid;
Oid typanalyzeoid;
char *typdelim;
char *typdefault;
char *typbyval;
char *typalign;
char *typstorage;
char *typdefault;
bool typdefault_is_literal = false;
/* Set proper schema search path so regproc references list correctly */
selectSourceSchema(tinfo->dobj.namespace->dobj.name);
@ -4709,8 +4710,8 @@ dumpBaseType(Archive *fout, TypeInfo *tinfo)
"typreceive::pg_catalog.oid as typreceiveoid, "
"typsend::pg_catalog.oid as typsendoid, "
"typanalyze::pg_catalog.oid as typanalyzeoid, "
"typdelim, typdefault, typbyval, typalign, "
"typstorage "
"typdelim, typbyval, typalign, typstorage, "
"pg_catalog.pg_get_expr(typdefaultbin, 'pg_catalog.pg_type'::pg_catalog.regclass) as typdefaultbin, typdefault "
"FROM pg_catalog.pg_type "
"WHERE oid = '%u'::pg_catalog.oid",
tinfo->dobj.catId.oid);
@ -4725,8 +4726,8 @@ dumpBaseType(Archive *fout, TypeInfo *tinfo)
"typreceive::pg_catalog.oid as typreceiveoid, "
"typsend::pg_catalog.oid as typsendoid, "
"0 as typanalyzeoid, "
"typdelim, typdefault, typbyval, typalign, "
"typstorage "
"typdelim, typbyval, typalign, typstorage, "
"pg_catalog.pg_get_expr(typdefaultbin, 'pg_catalog.pg_type'::pg_catalog.regclass) as typdefaultbin, typdefault "
"FROM pg_catalog.pg_type "
"WHERE oid = '%u'::pg_catalog.oid",
tinfo->dobj.catId.oid);
@ -4741,13 +4742,13 @@ dumpBaseType(Archive *fout, TypeInfo *tinfo)
"typoutput::pg_catalog.oid as typoutputoid, "
"0 as typreceiveoid, 0 as typsendoid, "
"0 as typanalyzeoid, "
"typdelim, typdefault, typbyval, typalign, "
"typstorage "
"typdelim, typbyval, typalign, typstorage, "
"pg_catalog.pg_get_expr(typdefaultbin, 'pg_catalog.pg_type'::pg_catalog.regclass) as typdefaultbin, typdefault "
"FROM pg_catalog.pg_type "
"WHERE oid = '%u'::pg_catalog.oid",
tinfo->dobj.catId.oid);
}
else if (fout->remoteVersion >= 70100)
else if (fout->remoteVersion >= 70200)
{
/*
* Note: although pre-7.3 catalogs contain typreceive and typsend,
@ -4761,8 +4762,28 @@ dumpBaseType(Archive *fout, TypeInfo *tinfo)
"typoutput::oid as typoutputoid, "
"0 as typreceiveoid, 0 as typsendoid, "
"0 as typanalyzeoid, "
"typdelim, typdefault, typbyval, typalign, "
"typstorage "
"typdelim, typbyval, typalign, typstorage, "
"NULL as typdefaultbin, typdefault "
"FROM pg_type "
"WHERE oid = '%u'::oid",
tinfo->dobj.catId.oid);
}
else if (fout->remoteVersion >= 70100)
{
/*
* Ignore pre-7.2 typdefault; the field exists but has an unusable
* representation.
*/
appendPQExpBuffer(query, "SELECT typlen, "
"typinput, typoutput, "
"'-' as typreceive, '-' as typsend, "
"'-' as typanalyze, "
"typinput::oid as typinputoid, "
"typoutput::oid as typoutputoid, "
"0 as typreceiveoid, 0 as typsendoid, "
"0 as typanalyzeoid, "
"typdelim, typbyval, typalign, typstorage, "
"NULL as typdefaultbin, NULL as typdefault "
"FROM pg_type "
"WHERE oid = '%u'::oid",
tinfo->dobj.catId.oid);
@ -4777,8 +4798,9 @@ dumpBaseType(Archive *fout, TypeInfo *tinfo)
"typoutput::oid as typoutputoid, "
"0 as typreceiveoid, 0 as typsendoid, "
"0 as typanalyzeoid, "
"typdelim, typdefault, typbyval, typalign, "
"'p'::char as typstorage "
"typdelim, typbyval, typalign, "
"'p'::char as typstorage, "
"NULL as typdefaultbin, NULL as typdefault "
"FROM pg_type "
"WHERE oid = '%u'::oid",
tinfo->dobj.catId.oid);
@ -4808,13 +4830,18 @@ dumpBaseType(Archive *fout, TypeInfo *tinfo)
typsendoid = atooid(PQgetvalue(res, 0, PQfnumber(res, "typsendoid")));
typanalyzeoid = atooid(PQgetvalue(res, 0, PQfnumber(res, "typanalyzeoid")));
typdelim = PQgetvalue(res, 0, PQfnumber(res, "typdelim"));
if (PQgetisnull(res, 0, PQfnumber(res, "typdefault")))
typdefault = NULL;
else
typdefault = PQgetvalue(res, 0, PQfnumber(res, "typdefault"));
typbyval = PQgetvalue(res, 0, PQfnumber(res, "typbyval"));
typalign = PQgetvalue(res, 0, PQfnumber(res, "typalign"));
typstorage = PQgetvalue(res, 0, PQfnumber(res, "typstorage"));
if (!PQgetisnull(res, 0, PQfnumber(res, "typdefaultbin")))
typdefault = PQgetvalue(res, 0, PQfnumber(res, "typdefaultbin"));
else if (!PQgetisnull(res, 0, PQfnumber(res, "typdefault")))
{
typdefault = PQgetvalue(res, 0, PQfnumber(res, "typdefault"));
typdefault_is_literal = true; /* it needs quotes */
}
else
typdefault = NULL;
/*
* DROP must be fully qualified in case same name appears in pg_catalog
@ -4854,7 +4881,10 @@ dumpBaseType(Archive *fout, TypeInfo *tinfo)
if (typdefault != NULL)
{
appendPQExpBuffer(q, ",\n DEFAULT = ");
appendStringLiteral(q, typdefault, true);
if (typdefault_is_literal)
appendStringLiteral(q, typdefault, true);
else
appendPQExpBufferStr(q, typdefault);
}
if (tinfo->isArray)
@ -4936,6 +4966,7 @@ dumpDomain(Archive *fout, TypeInfo *tinfo)
char *typnotnull;
char *typdefn;
char *typdefault;
bool typdefault_is_literal = false;
/* Set proper schema search path so type references list correctly */
selectSourceSchema(tinfo->dobj.namespace->dobj.name);
@ -4944,7 +4975,7 @@ dumpDomain(Archive *fout, TypeInfo *tinfo)
/* We assume here that remoteVersion must be at least 70300 */
appendPQExpBuffer(query, "SELECT typnotnull, "
"pg_catalog.format_type(typbasetype, typtypmod) as typdefn, "
"typdefault "
"pg_catalog.pg_get_expr(typdefaultbin, 'pg_catalog.pg_type'::pg_catalog.regclass) as typdefaultbin, typdefault "
"FROM pg_catalog.pg_type "
"WHERE oid = '%u'::pg_catalog.oid",
tinfo->dobj.catId.oid);
@ -4963,10 +4994,15 @@ dumpDomain(Archive *fout, TypeInfo *tinfo)
typnotnull = PQgetvalue(res, 0, PQfnumber(res, "typnotnull"));
typdefn = PQgetvalue(res, 0, PQfnumber(res, "typdefn"));
if (PQgetisnull(res, 0, PQfnumber(res, "typdefault")))
typdefault = NULL;
else
if (!PQgetisnull(res, 0, PQfnumber(res, "typdefaultbin")))
typdefault = PQgetvalue(res, 0, PQfnumber(res, "typdefaultbin"));
else if (!PQgetisnull(res, 0, PQfnumber(res, "typdefault")))
{
typdefault = PQgetvalue(res, 0, PQfnumber(res, "typdefault"));
typdefault_is_literal = true; /* it needs quotes */
}
else
typdefault = NULL;
appendPQExpBuffer(q,
"CREATE DOMAIN %s AS %s",
@ -4976,8 +5012,14 @@ dumpDomain(Archive *fout, TypeInfo *tinfo)
if (typnotnull[0] == 't')
appendPQExpBuffer(q, " NOT NULL");
if (typdefault)
appendPQExpBuffer(q, " DEFAULT %s", typdefault);
if (typdefault != NULL)
{
appendPQExpBuffer(q, " DEFAULT ");
if (typdefault_is_literal)
appendStringLiteral(q, typdefault, true);
else
appendPQExpBufferStr(q, typdefault);
}
PQclear(res);