Adding upstream version 16.2.upstream/16.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 175 insertions, 0 deletions

diff --git a/src/tutorial/syscat.source b/src/tutorial/syscat.source
new file mode 100644
index 0000000..0e7bc7b
--- /dev/null
+++ b/src/tutorial/syscat.source
@@ -0,0 +1,175 @@
+---------------------------------------------------------------------------
+--
+-- syscat.sql-
+--    sample queries to the system catalogs
+--
+--
+-- Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
+-- Portions Copyright (c) 1994, Regents of the University of California
+--
+-- src/tutorial/syscat.source
+--
+---------------------------------------------------------------------------
+
+--
+-- Sets the schema search path to pg_catalog first, so that we do not
+-- need to qualify every system object
+--
+SET search_path TO pg_catalog;
+
+-- The LIKE pattern language requires underscores to be escaped, so make
+-- sure the backslashes are not misinterpreted.
+SET standard_conforming_strings TO on;
+
+--
+-- lists the names of all database owners and the name of their database(s)
+--
+SELECT rolname, datname
+  FROM pg_roles, pg_database
+  WHERE pg_roles.oid = datdba
+  ORDER BY rolname, datname;
+
+--
+-- lists all user-defined classes
+--
+SELECT n.nspname, c.relname
+  FROM pg_class c, pg_namespace n
+  WHERE c.relnamespace=n.oid
+    and c.relkind = 'r'                   -- not indices, views, etc
+    and n.nspname not like 'pg\_%'       -- not catalogs
+    and n.nspname != 'information_schema' -- not information_schema
+  ORDER BY nspname, relname;
+
+
+--
+-- lists all simple indices (ie. those that are defined over one simple
+-- column reference)
+--
+SELECT n.nspname AS schema_name,
+       bc.relname AS class_name,
+       ic.relname AS index_name,
+       a.attname
+  FROM pg_namespace n,
+       pg_class bc,             -- base class
+       pg_class ic,             -- index class
+       pg_index i,
+       pg_attribute a           -- att in base
+  WHERE bc.relnamespace = n.oid
+     and i.indrelid = bc.oid
+     and i.indexrelid = ic.oid
+     and i.indkey[0] = a.attnum
+     and i.indnatts = 1
+     and a.attrelid = bc.oid
+  ORDER BY schema_name, class_name, index_name, attname;
+
+
+--
+-- lists the user-defined attributes and their types for all user-defined
+-- classes
+--
+SELECT n.nspname, c.relname, a.attname, format_type(t.oid, null) as typname
+  FROM pg_namespace n, pg_class c,
+       pg_attribute a, pg_type t
+  WHERE n.oid = c.relnamespace
+    and c.relkind = 'r'     -- no indices
+    and n.nspname not like 'pg\_%' -- no catalogs
+    and n.nspname != 'information_schema' -- no information_schema
+    and a.attnum > 0        -- no system att's
+    and not a.attisdropped   -- no dropped columns
+    and a.attrelid = c.oid
+    and a.atttypid = t.oid
+  ORDER BY nspname, relname, attname;
+
+
+--
+-- lists all user-defined base types (not including array types)
+--
+SELECT n.nspname, r.rolname, format_type(t.oid, null) as typname
+  FROM pg_type t, pg_roles r, pg_namespace n
+  WHERE r.oid = t.typowner
+    and t.typnamespace = n.oid
+    and t.typrelid = 0   -- no complex types
+    and t.typelem = 0    -- no arrays
+    and n.nspname not like 'pg\_%' -- no built-in types
+    and n.nspname != 'information_schema' -- no information_schema
+  ORDER BY nspname, rolname, typname;
+
+
+--
+-- lists all prefix operators
+--
+SELECT n.nspname, o.oprname AS prefix_op,
+       format_type(right_type.oid, null) AS operand,
+       format_type(result.oid, null) AS return_type
+  FROM pg_namespace n, pg_operator o,
+       pg_type right_type, pg_type result
+  WHERE o.oprnamespace = n.oid
+    and o.oprkind = 'l'           -- prefix ("left unary")
+    and o.oprright = right_type.oid
+    and o.oprresult = result.oid
+  ORDER BY nspname, operand;
+
+
+--
+-- lists all infix operators
+--
+SELECT n.nspname, o.oprname AS binary_op,
+       format_type(left_type.oid, null) AS left_opr,
+       format_type(right_type.oid, null) AS right_opr,
+       format_type(result.oid, null) AS return_type
+  FROM pg_namespace n, pg_operator o, pg_type left_type,
+       pg_type right_type, pg_type result
+  WHERE o.oprnamespace = n.oid
+    and o.oprkind = 'b'         -- infix ("binary")
+    and o.oprleft = left_type.oid
+    and o.oprright = right_type.oid
+    and o.oprresult = result.oid
+  ORDER BY nspname, left_opr, right_opr;
+
+
+--
+-- lists the name, number of arguments and the return type of all user-defined
+-- C functions
+--
+SELECT n.nspname, p.proname, p.pronargs, format_type(t.oid, null) as return_type
+  FROM pg_namespace n, pg_proc p,
+       pg_language l, pg_type t
+  WHERE p.pronamespace = n.oid
+    and n.nspname not like 'pg\_%' -- no catalogs
+    and n.nspname != 'information_schema' -- no information_schema
+    and p.prolang = l.oid
+    and p.prorettype = t.oid
+    and l.lanname = 'c'
+  ORDER BY nspname, proname, pronargs, return_type;
+
+--
+-- lists all aggregate functions and the types to which they can be applied
+--
+SELECT n.nspname, p.proname, format_type(t.oid, null) as typname
+  FROM pg_namespace n, pg_aggregate a,
+       pg_proc p, pg_type t
+  WHERE p.pronamespace = n.oid
+    and a.aggfnoid = p.oid
+    and p.proargtypes[0] = t.oid
+  ORDER BY nspname, proname, typname;
+
+
+--
+-- lists all the operator families that can be used with each access method
+-- as well as the operators that can be used with the respective operator
+-- families
+--
+SELECT am.amname, n.nspname, opf.opfname, opr.oprname
+  FROM pg_namespace n, pg_am am, pg_opfamily opf,
+       pg_amop amop, pg_operator opr
+  WHERE opf.opfnamespace = n.oid
+    and opf.opfmethod = am.oid
+    and amop.amopfamily = opf.oid
+    and amop.amopopr = opr.oid
+  ORDER BY nspname, amname, opfname, oprname;
+
+--
+-- Reset the search path and standard_conforming_strings to their defaults
+--
+RESET search_path;
+RESET standard_conforming_strings;