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Modernize string literal syntax in tutorial example.

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Un-double the backslashes in the LIKE patterns, since
standard_conforming_strings is now the default.  Just to be sure, include
a command to set standard_conforming_strings to ON in the example.

Back-patch to 9.1, where standard_conforming_strings became the default.

Josh Kupershmidt, reviewed by Jeff Janes
This commit is contained in:
Tom Lane 2013-01-19 17:20:32 -05:00
parent e994d83d5b
commit 30a4853cfd
1 changed files with 12 additions and 7 deletions
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19
src/tutorial/syscat.source
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@ -15,7 +15,11 @@
-- Sets the schema search path to pg_catalog first, so that we do not -- Sets the schema search path to pg_catalog first, so that we do not
-- need to qualify every system object -- need to qualify every system object
-- --
SET SEARCH_PATH TO pg_catalog; 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) -- lists the names of all database owners and the name of their database(s)
@ -32,7 +36,7 @@ SELECT n.nspname, c.relname
FROM pg_class c, pg_namespace n FROM pg_class c, pg_namespace n
WHERE c.relnamespace=n.oid WHERE c.relnamespace=n.oid
and c.relkind = 'r' -- not indices, views, etc and c.relkind = 'r' -- not indices, views, etc
and n.nspname not like 'pg\\_%' -- not catalogs and n.nspname not like 'pg\_%' -- not catalogs
and n.nspname != 'information_schema' -- not information_schema and n.nspname != 'information_schema' -- not information_schema
ORDER BY nspname, relname; ORDER BY nspname, relname;
@ -68,7 +72,7 @@ SELECT n.nspname, c.relname, a.attname, format_type(t.oid, null) as typname
pg_attribute a, pg_type t pg_attribute a, pg_type t
WHERE n.oid = c.relnamespace WHERE n.oid = c.relnamespace
and c.relkind = 'r' -- no indices and c.relkind = 'r' -- no indices
and n.nspname not like 'pg\\_%' -- no catalogs and n.nspname not like 'pg\_%' -- no catalogs
and n.nspname != 'information_schema' -- no information_schema and n.nspname != 'information_schema' -- no information_schema
and a.attnum > 0 -- no system att's and a.attnum > 0 -- no system att's
and not a.attisdropped -- no dropped columns and not a.attisdropped -- no dropped columns
@ -86,7 +90,7 @@ SELECT n.nspname, r.rolname, format_type(t.oid, null) as typname
and t.typnamespace = n.oid and t.typnamespace = n.oid
and t.typrelid = 0 -- no complex types and t.typrelid = 0 -- no complex types
and t.typelem = 0 -- no arrays and t.typelem = 0 -- no arrays
and n.nspname not like 'pg\\_%' -- no built-in types and n.nspname not like 'pg\_%' -- no built-in types
and n.nspname != 'information_schema' -- no information_schema and n.nspname != 'information_schema' -- no information_schema
ORDER BY nspname, rolname, typname; ORDER BY nspname, rolname, typname;
@ -145,7 +149,7 @@ SELECT n.nspname, p.proname, p.pronargs, format_type(t.oid, null) as return_type
FROM pg_namespace n, pg_proc p, FROM pg_namespace n, pg_proc p,
pg_language l, pg_type t pg_language l, pg_type t
WHERE p.pronamespace = n.oid WHERE p.pronamespace = n.oid
and n.nspname not like 'pg\\_%' -- no catalogs and n.nspname not like 'pg\_%' -- no catalogs
and n.nspname != 'information_schema' -- no information_schema and n.nspname != 'information_schema' -- no information_schema
and p.prolang = l.oid and p.prolang = l.oid
and p.prorettype = t.oid and p.prorettype = t.oid
@ -179,6 +183,7 @@ SELECT am.amname, n.nspname, opf.opfname, opr.oprname
ORDER BY nspname, amname, opfname, oprname; ORDER BY nspname, amname, opfname, oprname;
-- --
-- Reset the search path -- Reset the search path and standard_conforming_strings to their defaults
-- --
RESET SEARCH_PATH; RESET search_path;
RESET standard_conforming_strings;