Remove special BKI_LOOKUP magic for namespace and role OIDs.

Now that commit 62f34097c attached BKI_LOOKUP annotation to all the
namespace and role OID columns in the catalogs, there's no real reason
to have the magic PGNSP and PGUID symbols.  Get rid of them in favor
of implementing those lookups according to genbki.pl's normal pattern.

This means that in the catalog headers, BKI_DEFAULT(PGNSP) becomes
BKI_DEFAULT(pg_catalog), which seems a lot more transparent.
BKI_DEFAULT(PGUID) becomes BKI_DEFAULT(POSTGRES), which is perhaps
less so; but you can look into pg_authid.dat to discover that
POSTGRES is the nonce name for the bootstrap superuser.

This change also means that if we ever need cross-references in the
initial catalog data to any of the other built-in roles besides
POSTGRES, or to some other built-in schema besides pg_catalog,
we can just do it.

No catversion bump here, as there's no actual change in the contents
of postgres.bki.

Discussion: https://postgr.es/m/3240355.1612129197@sss.pgh.pa.us
This commit is contained in:
Tom Lane 2021-02-03 12:01:48 -05:00
parent 0bf83648a5
commit ba0faf81c6
19 changed files with 46 additions and 52 deletions

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@ -540,17 +540,6 @@
expected to be in the <literal>pg_catalog</literal> schema.
</para>
</listitem>
<listitem>
<para>
In addition to the generic lookup mechanisms, there is a special
convention that <literal>PGNSP</literal> is replaced by the OID of
the <literal>pg_catalog</literal> schema,
and <literal>PGUID</literal> is replaced by the OID of the bootstrap
superuser role. These usages are somewhat historical but so far
there hasn't been a need to generalize them.
</para>
</listitem>
</itemizedlist>
<para>

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@ -184,15 +184,9 @@ my $GenbkiNextOid = $FirstGenbkiObjectId;
# within a given Postgres release, such as fixed OIDs. Do not substitute
# anything that could depend on platform or configuration. (The right place
# to handle those sorts of things is in initdb.c's bootstrap_template1().)
my $BOOTSTRAP_SUPERUSERID =
Catalog::FindDefinedSymbolFromData($catalog_data{pg_authid},
'BOOTSTRAP_SUPERUSERID');
my $C_COLLATION_OID =
Catalog::FindDefinedSymbolFromData($catalog_data{pg_collation},
'C_COLLATION_OID');
my $PG_CATALOG_NAMESPACE =
Catalog::FindDefinedSymbolFromData($catalog_data{pg_namespace},
'PG_CATALOG_NAMESPACE');
# Fill in pg_class.relnatts by looking at the referenced catalog's schema.
@ -213,11 +207,12 @@ foreach my $row (@{ $catalog_data{pg_am} })
$amoids{ $row->{amname} } = $row->{oid};
}
# There is only one authid at bootstrap time, and we handle it specially:
# the usually-defaulted symbol PGUID becomes the bootstrap superuser's OID.
# (We could drop this in favor of writing out BKI_DEFAULT(POSTGRES) ...)
# role OID lookup
my %authidoids;
$authidoids{'PGUID'} = $BOOTSTRAP_SUPERUSERID;
foreach my $row (@{ $catalog_data{pg_authid} })
{
$authidoids{ $row->{rolname} } = $row->{oid};
}
# class (relation) OID lookup (note this only covers bootstrap catalogs!)
my %classoids;
@ -240,11 +235,12 @@ foreach my $row (@{ $catalog_data{pg_language} })
$langoids{ $row->{lanname} } = $row->{oid};
}
# There is only one namespace at bootstrap time, and we handle it specially:
# the usually-defaulted symbol PGNSP becomes the pg_catalog namespace's OID.
# (We could drop this in favor of writing out BKI_DEFAULT(pg_catalog) ...)
# namespace (schema) OID lookup
my %namespaceoids;
$namespaceoids{'PGNSP'} = $PG_CATALOG_NAMESPACE;
foreach my $row (@{ $catalog_data{pg_namespace} })
{
$namespaceoids{ $row->{nspname} } = $row->{oid};
}
# opclass OID lookup
my %opcoids;

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@ -15,6 +15,10 @@
# The C code typically refers to these roles using the #define symbols,
# so make sure every entry has an oid_symbol value.
# The bootstrap superuser is named POSTGRES according to this data and
# according to BKI_DEFAULT entries in other catalogs. However, initdb
# will replace that at database initialization time.
{ oid => '10', oid_symbol => 'BOOTSTRAP_SUPERUSERID',
rolname => 'POSTGRES', rolsuper => 't', rolinherit => 't',
rolcreaterole => 't', rolcreatedb => 't', rolcanlogin => 't',

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@ -38,7 +38,7 @@ CATALOG(pg_class,1259,RelationRelationId) BKI_BOOTSTRAP BKI_ROWTYPE_OID(83,Relat
NameData relname;
/* OID of namespace containing this class */
Oid relnamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace);
Oid relnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* OID of entry in pg_type for relation's implicit row type, if any */
Oid reltype BKI_LOOKUP_OPT(pg_type);
@ -47,7 +47,7 @@ CATALOG(pg_class,1259,RelationRelationId) BKI_BOOTSTRAP BKI_ROWTYPE_OID(83,Relat
Oid reloftype BKI_DEFAULT(0) BKI_LOOKUP_OPT(pg_type);
/* class owner */
Oid relowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid relowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
/* access method; 0 if not a table / index */
Oid relam BKI_DEFAULT(heap) BKI_LOOKUP_OPT(pg_am);

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@ -30,9 +30,12 @@ CATALOG(pg_collation,3456,CollationRelationId)
{
Oid oid; /* oid */
NameData collname; /* collation name */
Oid collnamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace); /* OID of namespace
* containing collation */
Oid collowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid); /* owner of collation */
/* OID of namespace containing this collation */
Oid collnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* owner of collation */
Oid collowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
char collprovider; /* see constants below */
bool collisdeterministic BKI_DEFAULT(t);
int32 collencoding; /* encoding for this collation; -1 = "all" */

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@ -35,10 +35,10 @@ CATALOG(pg_conversion,2607,ConversionRelationId)
NameData conname;
/* namespace that the conversion belongs to */
Oid connamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace);
Oid connamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* owner of the conversion */
Oid conowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid conowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
/* FOR encoding id */
int32 conforencoding BKI_LOOKUP(encoding);

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@ -35,7 +35,7 @@ CATALOG(pg_database,1262,DatabaseRelationId) BKI_SHARED_RELATION BKI_ROWTYPE_OID
NameData datname;
/* owner of database */
Oid datdba BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid datdba BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
/* character encoding */
int32 encoding;

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@ -34,7 +34,7 @@ CATALOG(pg_language,2612,LanguageRelationId)
NameData lanname;
/* Language's owner */
Oid lanowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid lanowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
/* Is a procedural language */
bool lanispl BKI_DEFAULT(f);

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@ -37,7 +37,7 @@ CATALOG(pg_namespace,2615,NamespaceRelationId)
Oid oid; /* oid */
NameData nspname;
Oid nspowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid nspowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
#ifdef CATALOG_VARLEN /* variable-length fields start here */
aclitem nspacl[1];

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@ -57,10 +57,10 @@ CATALOG(pg_opclass,2616,OperatorClassRelationId)
NameData opcname;
/* namespace of this opclass */
Oid opcnamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace);
Oid opcnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* opclass owner */
Oid opcowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid opcowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
/* containing operator family */
Oid opcfamily BKI_LOOKUP(pg_opfamily);

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@ -36,10 +36,10 @@ CATALOG(pg_operator,2617,OperatorRelationId)
NameData oprname;
/* OID of namespace containing this oper */
Oid oprnamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace);
Oid oprnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* operator owner */
Oid oprowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid oprowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
/* 'l' for prefix or 'b' for infix */
char oprkind BKI_DEFAULT(b);

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@ -37,10 +37,10 @@ CATALOG(pg_opfamily,2753,OperatorFamilyRelationId)
NameData opfname;
/* namespace of this opfamily */
Oid opfnamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace);
Oid opfnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* opfamily owner */
Oid opfowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid opfowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
} FormData_pg_opfamily;
/* ----------------

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@ -35,10 +35,10 @@ CATALOG(pg_proc,1255,ProcedureRelationId) BKI_BOOTSTRAP BKI_ROWTYPE_OID(81,Proce
NameData proname;
/* OID of namespace containing this proc */
Oid pronamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace);
Oid pronamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* procedure owner */
Oid proowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid proowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
/* OID of pg_language entry */
Oid prolang BKI_DEFAULT(internal) BKI_LOOKUP(pg_language);

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@ -30,7 +30,9 @@ CATALOG(pg_tablespace,1213,TableSpaceRelationId) BKI_SHARED_RELATION
{
Oid oid; /* oid */
NameData spcname; /* tablespace name */
Oid spcowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid); /* owner of tablespace */
/* owner of tablespace */
Oid spcowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
#ifdef CATALOG_VARLEN /* variable-length fields start here */
aclitem spcacl[1]; /* access permissions */

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@ -36,10 +36,10 @@ CATALOG(pg_ts_config,3602,TSConfigRelationId)
NameData cfgname;
/* name space */
Oid cfgnamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace);
Oid cfgnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* owner */
Oid cfgowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid cfgowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
/* OID of parser */
Oid cfgparser BKI_LOOKUP(pg_ts_parser);

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@ -35,10 +35,10 @@ CATALOG(pg_ts_dict,3600,TSDictionaryRelationId)
NameData dictname;
/* name space */
Oid dictnamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace);
Oid dictnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* owner */
Oid dictowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid dictowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
/* dictionary's template */
Oid dicttemplate BKI_LOOKUP(pg_ts_template);

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@ -34,7 +34,7 @@ CATALOG(pg_ts_parser,3601,TSParserRelationId)
NameData prsname;
/* name space */
Oid prsnamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace);
Oid prsnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* init parsing session */
regproc prsstart BKI_LOOKUP(pg_proc);

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@ -34,7 +34,7 @@ CATALOG(pg_ts_template,3764,TSTemplateRelationId)
NameData tmplname;
/* name space */
Oid tmplnamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace);
Oid tmplnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* initialization method of dict (may be 0) */
regproc tmplinit BKI_LOOKUP_OPT(pg_proc);

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@ -41,10 +41,10 @@ CATALOG(pg_type,1247,TypeRelationId) BKI_BOOTSTRAP BKI_ROWTYPE_OID(71,TypeRelati
NameData typname;
/* OID of namespace containing this type */
Oid typnamespace BKI_DEFAULT(PGNSP) BKI_LOOKUP(pg_namespace);
Oid typnamespace BKI_DEFAULT(pg_catalog) BKI_LOOKUP(pg_namespace);
/* type owner */
Oid typowner BKI_DEFAULT(PGUID) BKI_LOOKUP(pg_authid);
Oid typowner BKI_DEFAULT(POSTGRES) BKI_LOOKUP(pg_authid);
/*
* For a fixed-size type, typlen is the number of bytes we use to