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Initial version of the SQL information schema
This commit is contained in:
Peter Eisentraut
@@ -4,7 +4,7 @@
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#
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# Copyright (c) 1994, Regents of the University of California
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#
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# $Header: /cvsroot/pgsql/src/backend/Makefile,v 1.88 2002/10/09 16:21:54 momjian Exp $
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# $Header: /cvsroot/pgsql/src/backend/Makefile,v 1.89 2002/12/14 00:24:23 petere Exp $
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#
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#-------------------------------------------------------------------------
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@@ -131,7 +131,7 @@ ifeq ($(MAKE_DLL), true)
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$(INSTALL_DATA) libpostgres.a $(DESTDIR)$(libdir)/libpostgres.a
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endif
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endif
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$(MAKE) -C catalog install-bki
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$(MAKE) -C catalog install-data
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$(INSTALL_DATA) $(srcdir)/libpq/pg_hba.conf.sample $(DESTDIR)$(datadir)/pg_hba.conf.sample
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$(INSTALL_DATA) $(srcdir)/libpq/pg_ident.conf.sample $(DESTDIR)$(datadir)/pg_ident.conf.sample
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$(INSTALL_DATA) $(srcdir)/utils/misc/postgresql.conf.sample $(DESTDIR)$(datadir)/postgresql.conf.sample
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@@ -170,7 +170,7 @@ ifeq ($(MAKE_DLL), true)
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rm -f $(DESTDIR)$(libdir)/libpostgres.a
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endif
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endif
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$(MAKE) -C catalog uninstall-bki
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$(MAKE) -C catalog uninstall-data
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rm -f $(DESTDIR)$(datadir)/pg_hba.conf.sample \
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$(DESTDIR)$(datadir)/pg_ident.conf.sample \
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$(DESTDIR)$(datadir)/postgresql.conf.sample
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@@ -2,7 +2,7 @@
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#
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# Makefile for backend/catalog
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#
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# $Header: /cvsroot/pgsql/src/backend/catalog/Makefile,v 1.42 2002/07/18 23:11:27 petere Exp $
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# $Header: /cvsroot/pgsql/src/backend/catalog/Makefile,v 1.43 2002/12/14 00:24:24 petere Exp $
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#
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#-------------------------------------------------------------------------
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@@ -41,17 +41,18 @@ postgres.bki postgres.description: genbki.sh $(POSTGRES_BKI_SRCS) \
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$(top_srcdir)/src/include/postgres_ext.h $(top_builddir)/src/include/pg_config.h
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CPP='$(CPP)' AWK='$(AWK)' $(SHELL) $< $(BKIOPTS) -o postgres $(pg_includes) $(POSTGRES_BKI_SRCS) --set-version=$(VERSION)
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.PHONY: install-bki
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install-bki: $(BKIFILES) installdirs
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.PHONY: install-data
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install-data: $(BKIFILES) installdirs
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$(INSTALL_DATA) postgres.bki $(DESTDIR)$(datadir)/postgres.bki
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$(INSTALL_DATA) postgres.description $(DESTDIR)$(datadir)/postgres.description
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$(INSTALL_DATA) information_schema.sql $(DESTDIR)$(datadir)/information_schema.sql
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installdirs:
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$(mkinstalldirs) $(DESTDIR)$(datadir)
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.PHONY: uninstall-bki
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uninstall-bki:
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rm -f $(addprefix $(DESTDIR)$(datadir)/, $(BKIFILES))
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.PHONY: uninstall-data
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uninstall-data:
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rm -f $(addprefix $(DESTDIR)$(datadir)/, $(BKIFILES) information_schema.sql)
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clean:
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516
src/backend/catalog/information_schema.sql
Normal file
516
src/backend/catalog/information_schema.sql
Normal file
@@ -0,0 +1,516 @@
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/*
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* SQL Information Schema
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* as defined in ISO 9075-2:1999 chapter 20
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*
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* Copyright 2002, PostgreSQL Global Development Group
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*
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* $Id: information_schema.sql,v 1.1 2002/12/14 00:24:24 petere Exp $
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*/
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/*
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* 20.2
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* INFORMATION_SCHEMA schema
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*/
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CREATE SCHEMA information_schema;
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GRANT USAGE ON SCHEMA information_schema TO PUBLIC;
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SET search_path TO information_schema, public;
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-- Note: 20.3 follows later. Some genius screwed up the order in the standard.
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/*
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* 20.4
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* CARDINAL_NUMBER domain
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*/
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CREATE DOMAIN cardinal_number AS integer
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CONSTRAINT cardinal_number_domain_check CHECK (value >= 0);
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/*
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* 20.5
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* CHARACTER_DATA domain
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*/
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CREATE DOMAIN character_data AS character varying;
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/*
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* 20.6
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* SQL_IDENTIFIER domain
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*/
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CREATE DOMAIN sql_identifier AS character varying;
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/*
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* 20.3
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* INFORMATION_SCHEMA_CATALOG_NAME view
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*/
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CREATE VIEW information_schema_catalog_name AS
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SELECT CAST(current_database() AS sql_identifier) AS catalog_name;
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GRANT SELECT ON information_schema_catalog_name TO PUBLIC;
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/*
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* 20.7
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* TIME_STAMP domain
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*/
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CREATE DOMAIN time_stamp AS timestamp(2)
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DEFAULT current_timestamp(2);
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/*
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* 20.13
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* CHECK_CONSTRAINTS view
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*/
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CREATE VIEW check_constraints AS
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SELECT CAST(current_database() AS sql_identifier) AS constraint_catalog,
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CAST(rs.nspname AS sql_identifier) AS constraint_schema,
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CAST(con.conname AS sql_identifier) AS constraint_name,
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CAST(con.consrc AS character_data) AS check_clause
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FROM pg_namespace rs, pg_class c, pg_constraint con, pg_user u
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WHERE rs.oid = c.relnamespace AND c.oid = con.conrelid
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AND c.relowner = u.usesysid AND u.usename = current_user
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AND con.contype = 'c';
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GRANT SELECT ON check_constraints TO PUBLIC;
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/*
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* 20.15
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* COLUMN_DOMAIN_USAGE view
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*/
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CREATE VIEW column_domain_usage AS
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SELECT CAST(current_database() AS sql_identifier) AS domain_catalog,
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CAST(nt.nspname AS sql_identifier) AS domain_schema,
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CAST(t.typname AS sql_identifier) AS domain_name,
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CAST(current_database() AS sql_identifier) AS table_catalog,
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CAST(nc.nspname AS sql_identifier) AS table_schema,
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CAST(c.relname AS sql_identifier) AS table_name,
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CAST(a.attname AS sql_identifier) AS column_name
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FROM pg_type t, pg_namespace nt, pg_class c, pg_namespace nc,
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pg_attribute a, pg_user u
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WHERE t.typnamespace = nt.oid AND t.typtype = 'd'
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AND c.relnamespace = nc.oid AND a.attrelid = c.oid
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AND a.atttypid = t.oid AND t.typowner = u.usesysid
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AND u.usename = current_user;
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GRANT SELECT ON column_domain_usage TO PUBLIC;
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/*
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* 20.16
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* COLUMN_PRIVILEGES
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*/
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-- PostgreSQL does not have column privileges, so this view is empty.
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-- (Table privileges do not also count as column privileges.)
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CREATE VIEW column_privileges AS
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SELECT CAST(null AS sql_identifier) AS grantor,
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CAST(null AS sql_identifier) AS grantee,
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CAST(null AS sql_identifier) AS table_catalog,
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CAST(null AS sql_identifier) AS table_schema,
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CAST(null AS sql_identifier) AS table_name,
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CAST(null AS sql_identifier) AS column_name,
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CAST(null AS character_data) AS privilege_type,
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CAST(null AS character_data) AS is_grantable
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WHERE false;
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GRANT SELECT ON column_privileges TO PUBLIC;
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/*
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* 20.18
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* COLUMNS view
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*/
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CREATE VIEW columns AS
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SELECT CAST(current_database() AS sql_identifier) AS table_catalog,
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CAST(nc.nspname AS sql_identifier) AS table_schema,
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CAST(c.relname AS sql_identifier) AS table_name,
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CAST(a.attname AS sql_identifier) AS column_name,
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CAST(a.attnum AS cardinal_number) AS ordinal_position,
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CAST(
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CASE WHEN u.usename = current_user THEN a.adsrc ELSE null END
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AS character_data)
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AS column_default,
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CAST(CASE WHEN a.attnotnull THEN 'NO' ELSE 'YES' END
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AS character_data)
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AS is_nullable,
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CAST(format_type(a.atttypid, null) AS character_data)
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AS data_type,
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CAST(
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CASE WHEN a.atttypid IN (25, 1042, 1043, 1560, 1562) AND a.atttypmod <> -1
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THEN a.atttypmod - 4
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ELSE null END
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AS cardinal_number)
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AS character_maximum_length,
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CAST(
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CASE WHEN a.atttypid IN (25, 1042, 1043) THEN 2^30 ELSE null END
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AS cardinal_number)
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AS character_octet_length,
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CAST(
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CASE WHEN a.atttypid IN (1700) THEN ((a.atttypmod - 4) >> 16) & 65535 ELSE null END
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AS cardinal_number)
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AS numeric_precision,
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CAST(
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CASE WHEN a.atttypid IN (1700) THEN 10 ELSE null END
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AS cardinal_number)
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AS numeric_precision_radix,
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CAST(
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CASE WHEN a.atttypid IN (1700) THEN (a.atttypmod - 4) & 65535 ELSE null END
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AS cardinal_number)
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AS numeric_scale,
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CAST(
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CASE WHEN a.atttypid IN (1083, 1114, 1184, 1266)
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THEN (CASE WHEN a.atttypmod <> -1 THEN a.atttypmod ELSE null END)
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WHEN a.atttypid IN (1186)
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THEN (CASE WHEN a.atttypmod <> -1 THEN a.atttypmod & 65535 ELSE null END)
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ELSE null END
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AS cardinal_number)
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AS datetime_precision,
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CAST(null AS character_data) AS interval_type, -- XXX
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CAST(null AS character_data) AS interval_precision, -- XXX
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CAST(null AS sql_identifier) AS character_set_catalog,
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CAST(null AS sql_identifier) AS character_set_schema,
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CAST(null AS sql_identifier) AS character_set_name,
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CAST(null AS sql_identifier) AS collation_catalog,
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CAST(null AS sql_identifier) AS collation_schema,
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CAST(null AS sql_identifier) AS collation_name,
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CAST(CASE WHEN t.typbasetype <> 0 THEN current_database() ELSE null END
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AS sql_identifier) AS domain_catalog,
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CAST(CASE WHEN t.typbasetype <> 0 THEN nt.nspname ELSE null END
|
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AS sql_identifier) AS domain_schema,
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CAST(CASE WHEN t.typbasetype <> 0 THEN t.typname ELSE null END
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AS sql_identifier) AS domain_name,
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|
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CAST(CASE WHEN t.typbasetype = 0 THEN current_database() ELSE null END
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AS sql_identifier) AS udt_catalog,
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CAST(CASE WHEN t.typbasetype = 0 THEN nt.nspname ELSE null END
|
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AS sql_identifier) AS udt_schema,
|
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CAST(CASE WHEN t.typbasetype = 0 THEN t.typname ELSE null END
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AS sql_identifier) AS udt_name,
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CAST(null AS sql_identifier) AS scope_catalog,
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CAST(null AS sql_identifier) AS scope_schema,
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CAST(null AS sql_identifier) AS scope_name,
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|
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CAST(null AS cardinal_number) AS maximum_cardinality,
|
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CAST(null AS sql_identifier) AS dtd_identifier,
|
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CAST('NO' AS character_data) AS is_self_referencing
|
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|
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FROM (pg_attribute LEFT JOIN pg_attrdef ON attrelid = adrelid AND attnum = adnum) AS a,
|
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pg_class c, pg_namespace nc, pg_type t, pg_namespace nt, pg_user u
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|
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WHERE a.attrelid = c.oid
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AND a.atttypid = t.oid
|
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AND u.usesysid = c.relowner
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AND nc.oid = c.relnamespace
|
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AND nt.oid = t.typnamespace
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AND u.usename = current_user
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||||
|
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AND a.attnum > 0 AND NOT a.attisdropped AND c.relkind in ('r', 'v');
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GRANT SELECT ON columns TO PUBLIC;
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/*
|
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* 20.35
|
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* REFERENTIAL_CONSTRAINTS view
|
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*/
|
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|
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CREATE VIEW referential_constraints AS
|
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SELECT CAST(current_database() AS sql_identifier) AS constraint_catalog,
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CAST(ncon.nspname AS sql_identifier) AS constraint_schema,
|
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CAST(con.conname AS sql_identifier) AS constraint_name,
|
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CAST(current_database() AS sql_identifier) AS unique_constraint_catalog,
|
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CAST(null AS sql_identifier) AS unique_constraint_schema, -- XXX
|
||||
CAST(null AS sql_identifier) AS unique_constraint_name, -- XXX
|
||||
|
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CAST(
|
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CASE con.confmatchtype WHEN 'f' THEN 'FULL'
|
||||
WHEN 'p' THEN 'PARTIAL'
|
||||
WHEN 'u' THEN 'NONE' END
|
||||
AS character_data) AS match_option,
|
||||
|
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CAST(
|
||||
CASE con.confupdtype WHEN 'c' THEN 'CASCADE'
|
||||
WHEN 'n' THEN 'SET NULL'
|
||||
WHEN 'd' THEN 'SET DEFAULT'
|
||||
WHEN 'r' THEN 'RESTRICT'
|
||||
WHEN 'a' THEN 'NOACTION' END
|
||||
AS character_data) AS update_rule,
|
||||
|
||||
CAST(
|
||||
CASE con.confdeltype WHEN 'c' THEN 'CASCADE'
|
||||
WHEN 'n' THEN 'SET NULL'
|
||||
WHEN 'd' THEN 'SET DEFAULT'
|
||||
WHEN 'r' THEN 'RESTRICT'
|
||||
WHEN 'a' THEN 'NOACTION' END
|
||||
AS character_data) AS delete_rule
|
||||
|
||||
FROM pg_namespace ncon,
|
||||
pg_constraint con,
|
||||
pg_class r,
|
||||
pg_user u
|
||||
|
||||
WHERE ncon.oid = con.connamespace
|
||||
AND con.conrelid = r.oid AND r.relowner = u.usesysid
|
||||
AND u.usename = current_user;
|
||||
|
||||
GRANT SELECT ON referential_constraints TO PUBLIC;
|
||||
|
||||
|
||||
/*
|
||||
* 20.46
|
||||
* SCHEMATA view
|
||||
*/
|
||||
|
||||
CREATE VIEW schemata AS
|
||||
SELECT CAST(current_database() AS sql_identifier) AS catalog_name,
|
||||
CAST(n.nspname AS sql_identifier) AS schema_name,
|
||||
CAST(u.usename AS sql_identifier) AS schema_owner,
|
||||
CAST(null AS sql_identifier) AS default_character_set_catalog,
|
||||
CAST(null AS sql_identifier) AS default_character_set_schema,
|
||||
CAST(null AS sql_identifier) AS default_character_set_name,
|
||||
CAST(null AS character_data) AS sql_path
|
||||
FROM pg_namespace n, pg_user u
|
||||
WHERE n.nspowner = u.usesysid AND u.usename = current_user;
|
||||
|
||||
GRANT SELECT ON schemata TO PUBLIC;
|
||||
|
||||
|
||||
/*
|
||||
* 20.47
|
||||
* SQL_FEATURES table
|
||||
*/
|
||||
|
||||
CREATE TABLE sql_features (
|
||||
feature_id character_data,
|
||||
feature_name character_data,
|
||||
sub_feature_id character_data,
|
||||
sub_feature_name character_data,
|
||||
feature_subfeature_package_code character_data,
|
||||
is_supported character_data,
|
||||
is_verified_by character_data,
|
||||
comments character_data
|
||||
);
|
||||
|
||||
-- FIXME: Fill this in using the information in User's Guide Appendix
|
||||
-- C, and then figure out a way to generate the documentation from this
|
||||
-- table.
|
||||
|
||||
GRANT SELECT ON sql_features TO PUBLIC;
|
||||
|
||||
|
||||
/*
|
||||
* 20.49
|
||||
* SQL_LANGUAGES table
|
||||
*/
|
||||
|
||||
CREATE TABLE sql_languages (
|
||||
sql_language_source character_data,
|
||||
sql_language_year character_data,
|
||||
sql_language_conformance character_data,
|
||||
sql_language_integrity character_data,
|
||||
sql_language_implementation character_data,
|
||||
sql_language_binding_style character_data,
|
||||
sql_language_programming_language character_data
|
||||
);
|
||||
|
||||
INSERT INTO sql_languages VALUES ('ISO 9075', '1999', 'CORE', NULL, NULL, 'DIRECT', NULL);
|
||||
INSERT INTO sql_languages VALUES ('ISO 9075', '1999', 'CORE', NULL, NULL, 'EMBEDDED', 'C');
|
||||
|
||||
GRANT SELECT ON sql_languages TO PUBLIC;
|
||||
|
||||
|
||||
/*
|
||||
* 20.53
|
||||
* TABLE_CONSTRAINTS view
|
||||
*/
|
||||
|
||||
CREATE VIEW table_constraints AS
|
||||
SELECT CAST(current_database() AS sql_identifier) AS constraint_catalog,
|
||||
CAST(nc.nspname AS sql_identifier) AS constraint_schema,
|
||||
CAST(c.conname AS sql_identifier) AS constraint_name,
|
||||
CAST(current_database() AS sql_identifier) AS table_catalog,
|
||||
CAST(nr.nspname AS sql_identifier) AS table_schema,
|
||||
CAST(r.relname AS sql_identifier) AS table_name,
|
||||
CAST(
|
||||
CASE c.contype WHEN 'c' THEN 'CHECK'
|
||||
WHEN 'f' THEN 'FOREIGN KEY'
|
||||
WHEN 'p' THEN 'PRIMARY KEY'
|
||||
WHEN 'u' THEN 'UNIQUE' END
|
||||
AS character_data) AS constraint_type,
|
||||
CAST(CASE WHEN c.condeferrable THEN 'YES' ELSE 'NO' END AS character_data)
|
||||
AS is_deferrable,
|
||||
CAST(CASE WHEN c.condeferred THEN 'YES' ELSE 'NO' END AS character_data)
|
||||
AS initially_deferred
|
||||
|
||||
FROM pg_namespace nc,
|
||||
pg_namespace nr,
|
||||
pg_constraint c,
|
||||
pg_class r,
|
||||
pg_user u
|
||||
|
||||
WHERE nc.oid = c.connamespace AND nr.oid = r.relnamespace
|
||||
AND c.conrelid = r.oid AND r.relowner = u.usesysid
|
||||
AND u.usename = current_user;
|
||||
|
||||
-- FIMXE: Not-null constraints are missing here.
|
||||
|
||||
GRANT SELECT ON table_constraints TO PUBLIC;
|
||||
|
||||
|
||||
/*
|
||||
* 20.55
|
||||
* TABLE_PRIVILEGES view
|
||||
*/
|
||||
|
||||
CREATE VIEW table_privileges AS
|
||||
SELECT CAST(u_owner.usename AS sql_identifier) AS grantor,
|
||||
CAST(u_grantee.usename AS sql_identifier) AS grantee,
|
||||
CAST(current_database() AS sql_identifier) AS table_catalog,
|
||||
CAST(nc.nspname AS sql_identifier) AS table_schema,
|
||||
CAST(c.relname AS sql_identifier) AS table_name,
|
||||
CAST(pr.type AS character_data) AS privilege_type,
|
||||
CAST('NO' AS character_data) AS is_grantable,
|
||||
CAST('NO' AS character_data) AS with_hierarchy
|
||||
|
||||
FROM pg_user u_owner,
|
||||
pg_user u_grantee,
|
||||
pg_namespace nc,
|
||||
pg_class c,
|
||||
(SELECT 'SELECT' UNION SELECT 'DELETE' UNION SELECT 'INSERT' UNION SELECT 'UPDATE'
|
||||
UNION SELECT 'REFERENCES' UNION SELECT 'TRIGGER') AS pr (type)
|
||||
|
||||
WHERE u_owner.usesysid = c.relowner
|
||||
AND c.relnamespace = nc.oid
|
||||
AND has_table_privilege(u_grantee.usename, c.oid, pr.type)
|
||||
|
||||
AND (u_owner.usename = current_user OR u_grantee.usename = current_user);
|
||||
|
||||
GRANT SELECT ON table_privileges TO PUBLIC;
|
||||
|
||||
|
||||
/*
|
||||
* 20.56
|
||||
* TABLES view
|
||||
*/
|
||||
|
||||
CREATE VIEW tables AS
|
||||
SELECT CAST(current_database() AS sql_identifier) AS table_catalog,
|
||||
CAST(nc.nspname AS sql_identifier) AS table_schema,
|
||||
CAST(c.relname AS sql_identifier) AS table_name,
|
||||
|
||||
CAST(
|
||||
CASE WHEN nc.nspname LIKE 'pg!_temp!_%' ESCAPE '!' THEN 'LOCAL TEMPORARY'
|
||||
WHEN c.relkind = 'r' THEN 'BASE TABLE'
|
||||
WHEN c.relkind = 'v' THEN 'VIEW'
|
||||
ELSE null END
|
||||
AS character_data) AS table_type,
|
||||
|
||||
CAST(null AS sql_identifier) AS self_referencing_column_name,
|
||||
CAST(null AS character_data) AS reference_generation,
|
||||
|
||||
CAST(null AS sql_identifier) AS user_defined_type_catalog,
|
||||
CAST(null AS sql_identifier) AS user_defined_type_schema,
|
||||
CAST(null AS sql_identifier) AS user_defined_name
|
||||
|
||||
FROM pg_namespace nc, pg_class c, pg_user u
|
||||
|
||||
WHERE c.relnamespace = nc.oid AND u.usesysid = c.relowner
|
||||
AND (u.usename = current_user
|
||||
OR EXISTS(SELECT 1 FROM information_schema.table_privileges tp
|
||||
WHERE tp.table_schema = nc.nspname
|
||||
AND tp.table_name = c.relname
|
||||
AND tp.grantee = current_user))
|
||||
|
||||
AND c.relkind IN ('r', 'v');
|
||||
|
||||
GRANT SELECT ON tables TO PUBLIC;
|
||||
|
||||
|
||||
/*
|
||||
* 20.63
|
||||
* USAGE_PRIVILEGES view
|
||||
*/
|
||||
|
||||
-- Of the things currently implemented in PostgreSQL, usage privileges
|
||||
-- apply only to domains. Since domains have no real privileges, we
|
||||
-- represent all domains with implicit usage privilege here.
|
||||
|
||||
CREATE VIEW usage_privileges AS
|
||||
SELECT CAST(u.usename AS sql_identifier) AS grantor,
|
||||
CAST('PUBLIC' AS sql_identifier) AS grantee,
|
||||
CAST(current_database() AS sql_identifier) AS object_catalog,
|
||||
CAST(n.nspname AS sql_identifier) AS object_schema,
|
||||
CAST(t.typname AS sql_identifier) AS object_name,
|
||||
CAST('DOMAIN' AS character_data) AS object_type,
|
||||
CAST('USAGE' AS character_data) AS privilege_type,
|
||||
CAST('NO' AS character_data) AS is_grantable
|
||||
|
||||
FROM pg_user u,
|
||||
pg_namespace n,
|
||||
pg_type t
|
||||
|
||||
WHERE u.usesysid = t.typowner
|
||||
AND t.typnamespace = n.oid
|
||||
AND t.typtype = 'd';
|
||||
|
||||
GRANT SELECT ON usage_privileges TO PUBLIC;
|
||||
|
||||
|
||||
/*
|
||||
* 20.68
|
||||
* VIEWS view
|
||||
*/
|
||||
|
||||
CREATE VIEW views AS
|
||||
SELECT CAST(current_database() AS sql_identifier) AS table_catalog,
|
||||
CAST(nc.nspname AS sql_identifier) AS table_schema,
|
||||
CAST(c.relname AS sql_identifier) AS table_name,
|
||||
|
||||
CAST(
|
||||
CASE WHEN u.usename = current_user THEN pg_get_viewdef(c.oid)
|
||||
ELSE null END
|
||||
AS character_data) AS view_definition,
|
||||
|
||||
CAST('NONE' AS character_data) AS check_option,
|
||||
CAST(null AS character_data) AS is_updatable, -- FIXME
|
||||
CAST(null AS character_data) AS is_insertable_into -- FIXME
|
||||
|
||||
FROM pg_namespace nc, pg_class c, pg_user u
|
||||
|
||||
WHERE c.relnamespace = nc.oid AND u.usesysid = c.relowner
|
||||
AND (u.usename = current_user
|
||||
OR EXISTS(SELECT 1 FROM information_schema.table_privileges tp
|
||||
WHERE tp.table_schema = nc.nspname
|
||||
AND tp.table_name = c.relname
|
||||
AND tp.grantee = current_user))
|
||||
|
||||
AND c.relkind = 'v';
|
||||
|
||||
GRANT SELECT ON views TO PUBLIC;
|
||||
Reference in New Issue
Block a user