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ddlx.sql
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--------------------------------------------------------------- ---------------
-- DDL eXtractor functions
-- version 0.29 [email protected]
--------------------------------------------------------------- ---------------
SET client_min_messages = warning;
--------------------------------------------------------------- ---------------
-- Helpers for digesting system catalogs
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_identify(
IN oid,
OUT oid oid, OUT classid regclass,
OUT name name, OUT namespace name,
OUT owner name, OUT sql_kind text,
OUT sql_identifier text, OUT acl aclitem[])
RETURNS record LANGUAGE sql AS $$
WITH
rel_kind(k,v) AS (
VALUES ('r','TABLE'),
('p','TABLE'),
('v','VIEW'),
('i','INDEX'),
('I','INDEX'),
('S','SEQUENCE'),
('s','SPECIAL'),
('m','MATERIALIZED VIEW'),
('c','TYPE'),
('t','TOAST'),
('f','FOREIGN TABLE')
),
typ_type(k,v,v2) AS (
VALUES ('b','BASE','TYPE'),
('c','COMPOSITE','TYPE'),
('d','DOMAIN','DOMAIN'),
('e','ENUM','TYPE'),
('p','PSEUDO','TYPE'),
('r','RANGE','TYPE')
)
SELECT coalesce(t.oid,c.oid),
case when t.oid is not null then 'pg_type'::regclass
else 'pg_class'::regclass end,
c.relname AS name, n.nspname AS namespace,
pg_get_userbyid(c.relowner) AS owner,
coalesce(cc.v,c.relkind::text) AS sql_kind,
cast($1::regclass AS text) AS sql_identifier,
relacl as acl
FROM pg_class c JOIN pg_namespace n ON n.oid=c.relnamespace
LEFT JOIN pg_type t ON t.typrelid=c.oid AND t.typtype='c' AND c.relkind='c'
LEFT JOIN rel_kind AS cc on cc.k = c.relkind
WHERE c.oid = $1
UNION ALL
SELECT p.oid,'pg_proc'::regclass,
p.proname AS name, n.nspname AS namespace, pg_get_userbyid(p.proowner) AS owner,
#if 11
case p.prokind
when 'f' then 'FUNCTION'
when 'a' then 'AGGREGATE'
when 'p' then 'PROCEDURE'
when 'w' then 'WINDOW FUNCTION'
end
#else
case
when p.proisagg then 'AGGREGATE'
else 'FUNCTION'
end
#end
AS sql_kind,
cast($1::regprocedure AS text) AS sql_identifier,
proacl as acl
FROM pg_proc p JOIN pg_namespace n ON n.oid=p.pronamespace
WHERE p.oid = $1
UNION ALL
SELECT coalesce(c.oid,t.oid),
case when c.oid is not null then 'pg_class'::regclass
else 'pg_type'::regclass end,
t.typname AS name, n.nspname AS namespace, pg_get_userbyid(t.typowner) AS owner,
coalesce(cc.v,tt.v2,t.typtype::text) AS sql_kind,
format_type($1,null) AS sql_identifier,
#if 9.2
typacl as acl
#else
null as acl
#end
FROM pg_type t JOIN pg_namespace n ON n.oid=t.typnamespace
LEFT JOIN typ_type AS tt ON tt.k = t.typtype
LEFT JOIN pg_class AS c ON c.oid = t.typrelid AND t.typtype='c' AND c.relkind<>'c'
LEFT JOIN rel_kind AS cc ON cc.k = c.relkind
WHERE t.oid = $1
UNION ALL
SELECT r.oid,'pg_roles'::regclass,
r.rolname as name, null as namespace, null as owner,
'ROLE' as sql_kind,
quote_ident(r.rolname) as sql_identifier,
null as acl
FROM pg_roles r
WHERE r.oid = $1
UNION ALL
SELECT r.oid,'pg_rewrite'::regclass,
r.rulename as name, null as namespace, null as owner,
'RULE' as sql_kind,
quote_ident(r.rulename)||' ON '||
cast(c.oid::regclass as text) sql_identifier,
null as acl
FROM pg_rewrite r JOIN pg_class c on (c.oid = r.ev_class)
WHERE r.oid = $1
UNION ALL
SELECT n.oid,'pg_namespace'::regclass,
n.nspname as name, current_database() as namespace, pg_get_userbyid(n.nspowner) AS owner,
'SCHEMA' as sql_kind,
quote_ident(n.nspname) as sql_identifier,
nspacl as acl
FROM pg_namespace n join pg_roles r on r.oid = n.nspowner
WHERE n.oid = $1
UNION ALL
SELECT con.oid,'pg_constraint'::regclass,
con.conname as name,
c.relname as namespace, null as owner, 'CONSTRAINT' as sql_kind,
quote_ident(con.conname)
||coalesce(' ON '||cast(c.oid::regclass as text),'') as sql_identifier,
null as acl
FROM pg_constraint con
left JOIN pg_class c ON (con.conrelid=c.oid)
LEFT join (
values ('f','FOREIGN KEY'), ('c','CHECK'), ('x','EXCLUDE'),
('u','UNIQUE'), ('p','PRIMARY KEY'), ('t','TRIGGER'))
as tt on tt.column1 = con.contype
WHERE con.oid = $1
#if 14
AND (c.oid is null or -- hack to hide duplicated oids
NOT (c.relname like 'pg_%' or c.relnamespace = 'pg_catalog'::regnamespace))
#end
UNION ALL
SELECT t.oid,'pg_trigger'::regclass,
t.tgname as name, c.relname as namespace, null as owner,
'TRIGGER' as sql_kind,
format('%I ON %s',t.tgname,cast(c.oid::regclass as text)) as sql_identifier,
null as acl
FROM pg_trigger t join pg_class c on (t.tgrelid=c.oid)
WHERE t.oid = $1
UNION ALL
SELECT ad.oid,'pg_attrdef'::regclass,
a.attname as name, c.relname as namespace, null as owner,
'DEFAULT' as sql_kind,
format('%s.%I',cast(c.oid::regclass as text),a.attname) as sql_identifier,
null as acl
FROM pg_attrdef ad
JOIN pg_class c ON (ad.adrelid=c.oid)
JOIN pg_attribute a ON (c.oid = a.attrelid and a.attnum=ad.adnum)
WHERE ad.oid = $1
UNION ALL
SELECT op.oid,'pg_operator'::regclass,
op.oprname as name, n.nspname as namespace, pg_get_userbyid(op.oprowner) as owner,
'OPERATOR' as sql_kind,
cast(op.oid::regoperator as text) as sql_identifier,
null as acl
FROM pg_operator op JOIN pg_namespace n ON n.oid=op.oprnamespace
WHERE op.oid = $1
UNION ALL
SELECT cfg.oid,'pg_ts_config'::regclass,
cfg.cfgname as name, n.nspname as namespace, pg_get_userbyid(cfg.cfgowner) as owner,
'TEXT SEARCH CONFIGURATION' as sql_kind,
cast(cfg.oid::regconfig as text) as sql_identifier,
null as acl
FROM pg_ts_config cfg JOIN pg_namespace n ON n.oid=cfg.cfgnamespace
WHERE cfg.oid = $1
UNION ALL
SELECT dict.oid,'pg_ts_dict'::regclass,
dict.dictname as name, n.nspname as namespace, pg_get_userbyid(dict.dictowner) as owner,
'TEXT SEARCH DICTIONARY' as sql_kind,
cast(dict.oid::regdictionary as text) as sql_identifier,
null as acl
FROM pg_ts_dict dict JOIN pg_namespace n ON n.oid=dict.dictnamespace
WHERE dict.oid = $1
UNION ALL
SELECT prs.oid,'pg_ts_parser'::regclass,
prs.prsname as name, n.nspname as namespace, null as owner,
'TEXT SEARCH PARSER' as sql_kind,
format('%s%I',
quote_ident(nullif(n.nspname,current_schema()))||'.',prs.prsname)
as sql_identifier,
null as acl
FROM pg_ts_parser prs JOIN pg_namespace n ON n.oid=prs.prsnamespace
WHERE prs.oid = $1
UNION ALL
SELECT tmpl.oid,'pg_ts_template'::regclass,
tmpl.tmplname as name, n.nspname as namespace, null as owner,
'TEXT SEARCH TEMPLATE' as sql_kind,
format('%s%I',
quote_ident(nullif(n.nspname,current_schema()))||'.',tmpl.tmplname)
as sql_identifier,
null as acl
FROM pg_ts_template tmpl JOIN pg_namespace n ON n.oid=tmpl.tmplnamespace
WHERE tmpl.oid = $1
UNION ALL
SELECT fdw.oid,'pg_foreign_data_wrapper'::regclass,
fdw.fdwname as name, null as namespace, pg_get_userbyid(fdw.fdwowner) as owner,
'FOREIGN DATA WRAPPER' as sql_kind,
quote_ident(fdw.fdwname) as sql_identifier,
fdwacl as acl
FROM pg_foreign_data_wrapper fdw
WHERE fdw.oid = $1
UNION ALL
SELECT srv.oid,'pg_foreign_server'::regclass,
srv.srvname as name, null as namespace, pg_get_userbyid(srv.srvowner) as owner,
'SERVER' as sql_kind,
quote_ident(srv.srvname) as sql_identifier,
srvacl as acl
FROM pg_foreign_server srv
WHERE srv.oid = $1
UNION ALL
SELECT ums.umid,'pg_user_mapping'::regclass,
null as name, null as namespace, null as owner, 'USER MAPPING' as sql_kind,
'FOR '||quote_ident(ums.usename)||
' SERVER '||quote_ident(ums.srvname) as sql_identifier,
null as acl
FROM pg_user_mappings ums
WHERE ums.umid = $1
UNION ALL
SELECT ca.oid,'pg_cast'::regclass,
null as name, null as namespace, null as owner,
'CAST' as sql_kind,
format('(%s AS %s)',
format_type(ca.castsource,null),format_type(ca.casttarget,null))
as sql_identifier,
null as acl
FROM pg_cast ca
WHERE ca.oid = $1
UNION ALL
SELECT co.oid,'pg_collation'::regclass,
co.collname as name, n.nspname as namespace, pg_get_userbyid(co.collowner) as owner,
'COLLATION' as sql_kind,
format('%s%I',
quote_ident(nullif(n.nspname,current_schema()))||'.',co.collname)
as sql_identifier,
null as acl
FROM pg_collation co JOIN pg_namespace n ON n.oid=co.collnamespace
WHERE co.oid = $1
UNION ALL
SELECT co.oid,'pg_conversion'::regclass,
co.conname as name, n.nspname as namespace, pg_get_userbyid(co.conowner) as owner,
'CONVERSION' as sql_kind,
format('%s%I',
quote_ident(nullif(n.nspname,current_schema()))||'.',co.conname)
as sql_identifier,
null as acl
FROM pg_conversion co JOIN pg_namespace n ON n.oid=co.connamespace
WHERE co.oid = $1
UNION ALL
SELECT lan.oid,'pg_language'::regclass,
lan.lanname as name, null as namespace, pg_get_userbyid(lan.lanowner) as owner,
'LANGUAGE' as sql_kind,
quote_ident(lan.lanname) as sql_identifier,
lan.lanacl as acl
FROM pg_language lan
WHERE lan.oid = $1
UNION ALL
SELECT opf.oid,'pg_opfamily'::regclass,
opf.opfname as name, n.nspname as namespace, pg_get_userbyid(opf.opfowner) as owner,
'OPERATOR FAMILY' as sql_kind,
format('%s%I USING %I',
quote_ident(nullif(n.nspname,current_schema()))||'.',
opf.opfname,
am.amname)
as sql_identifier,
null as acl
FROM pg_opfamily opf JOIN pg_namespace n ON n.oid=opf.opfnamespace
JOIN pg_am am on (am.oid=opf.opfmethod)
WHERE opf.oid = $1
UNION ALL
SELECT dat.oid,'pg_database'::regclass,
dat.datname as name, null as namespace, pg_get_userbyid(dat.datdba) as owner,
'DATABASE' as sql_kind,
quote_ident(dat.datname) as sql_identifier,
dat.datacl as acl
FROM pg_database dat
WHERE dat.oid = $1
UNION ALL
SELECT spc.oid,'pg_tablespace'::regclass,
spc.spcname as name, null as namespace, pg_get_userbyid(spc.spcowner) as owner,
'TABLESPACE' as sql_kind,
quote_ident(spc.spcname) as sql_identifier,
spc.spcacl as acl
FROM pg_tablespace spc
WHERE spc.oid = $1
UNION ALL
SELECT opc.oid,'pg_opclass'::regclass,
opcname as name, n.nspname as namespace, pg_get_userbyid(opc.opcowner) as owner,
'OPERATOR CLASS' as sql_kind,
format('%s%I USING %I',
quote_ident(nullif(n.nspname,current_schema()))||'.',
opc.opcname,
am.amname)
as sql_identifier,
null as acl
FROM pg_opclass opc JOIN pg_namespace n ON n.oid=opc.opcnamespace
JOIN pg_am am ON am.oid=opc.opcmethod
WHERE opc.oid = $1
UNION ALL
SELECT e.oid, 'pg_extension'::regclass,
e.extname AS name, e.extnamespace::text AS namespace, pg_get_userbyid(e.extowner) AS owner,
'EXTENSION'::text AS sql_kind,
e.extname AS sql_identifier,
NULL::aclitem[] AS acl
FROM pg_extension e
WHERE e.oid = $1
#if 9.3
UNION ALL
SELECT evt.oid,'pg_event_trigger'::regclass,
evt.evtname as name, null as namespace, pg_get_userbyid(evt.evtowner) as owner,
'EVENT TRIGGER' as sql_kind,
quote_ident(evt.evtname) as sql_identifier,
null as acl
FROM pg_event_trigger evt
WHERE evt.oid = $1
UNION ALL
SELECT amproc.oid,'pg_amproc'::regclass,
'FUNCTION '||amprocnum, null as namespace, null as owner,
'AMPROC' as sql_kind,
format('FUNCTION %s (%s)',
amprocnum,
array_to_string(array[amproclefttype,amprocrighttype]::regtype[],','))
as sql_identifier,
null as acl
FROM pg_amproc amproc
WHERE amproc.oid = $1
UNION ALL
SELECT amop.oid,'pg_amop'::regclass,
'OPERATOR '||amopstrategy, null as namespace, null as owner,
'AMOP' as sql_kind,
format('OPERATOR %s (%s)',
amopstrategy,
array_to_string(array[amoplefttype,amoprighttype]::regtype[],','))
as sql_identifier,
null as acl
FROM pg_amop amop
WHERE amop.oid = $1
#if 9.5
UNION ALL
SELECT pol.oid,'pg_policy'::regclass,
pol.polname as name, null as namespace, null as owner,
'POLICY' as sql_kind,
format('%I ON %s',
polname,
cast(c.oid::regclass as text))
as sql_identifier,
null as acl
FROM pg_policy pol JOIN pg_class c on (c.oid=pol.polrelid)
WHERE pol.oid = $1
UNION ALL
SELECT trf.oid,'pg_transform'::regclass,
null as name, null as namespace, null as owner,
'TRANSFORM' as sql_kind,
format('FOR %s LANGUAGE %I',
format_type(trf.trftype,null),
l.lanname) as sql_identifier,
null as acl
FROM pg_transform trf JOIN pg_language l on (l.oid=trf.trflang)
WHERE trf.oid = $1
UNION ALL
SELECT am.oid,'pg_am'::regclass,
am.amname as name, NULL as namespace, NULL as owner,
'ACCESS METHOD' as sql_kind,
quote_ident(amname) as sql_identifier,
null as acl
FROM pg_am am
WHERE am.oid = $1
#if 10
UNION ALL
SELECT stx.oid,'pg_statistic_ext'::regclass,
stx.stxname, n.nspname as namespace, pg_get_userbyid(stx.stxowner) as owner,
'STATISTICS' as sql_kind,
format('%s%I',quote_ident(nullif(n.nspname,current_schema()))||'.',stx.stxname)
as sql_identifier,
null as acl
FROM pg_statistic_ext stx join pg_namespace n on (n.oid=stxnamespace)
WHERE stx.oid = $1
UNION ALL
SELECT pub.oid,'pg_publication'::regclass,
pub.pubname, NULL as namespace, pg_get_userbyid(pub.pubowner) as owner,
'PUBLICATION' as sql_kind,
quote_ident(pub.pubname) as sql_identifier,
null as acl
FROM pg_publication pub
WHERE pub.oid = $1
#if 14
UNION ALL
SELECT sub.oid,'pg_subscription'::regclass,
sub.subname, NULL as namespace, pg_get_userbyid(sub.subowner) as owner,
'SUBSCRIPTION' as sql_kind,
quote_ident(sub.subname) as sql_identifier,
null as acl
FROM pg_subscription sub
WHERE sub.oid = $1
#end
$$ strict;
COMMENT ON FUNCTION ddlx_identify(oid)
IS 'Identify any object by object id';
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_describe(
IN regclass, IN text[] default '{}',
OUT ord smallint,
OUT name name, OUT type text, OUT size integer, OUT not_null boolean,
OUT "default" text,
OUT ident text, OUT gen text,
OUT comment text, OUT primary_key name,
OUT is_local boolean, OUT storage text, OUT collation text,
OUT namespace name, OUT class_name name, OUT sql_identifier text,
OUT relid oid, OUT options text[], OUT definition text,
OUT sequence regclass,
OUT compression text)
RETURNS SETOF record LANGUAGE sql AS $$
SELECT DISTINCT
a.attnum AS ord,
a.attname AS name,
format_type(t.oid, NULL::integer) AS type,
CASE
WHEN (a.atttypmod - 4) > 0 THEN a.atttypmod - 4
ELSE NULL::integer
END AS size,
a.attnotnull AS not_null,
pg_get_expr(def.adbin,def.adrelid) AS "default",
#if 10
nullif(a.attidentity::text,''),
#else
null::text,
#end
#if 12
nullif(a.attgenerated::text,''),
#else
null::text,
#end
col_description(c.oid, a.attnum::integer) AS comment,
con.conname AS primary_key,
a.attislocal AS is_local,
case when a.attstorage<>t.typstorage
then case a.attstorage
when 'p' then 'plain'::text
when 'e' then 'external'::text
when 'm' then 'main'::text
when 'x' then 'extended'::text
else a.attstorage::text
end
end as storage,
nullif(col.collcollate::text,'') AS collation,
s.nspname AS namespace,
c.relname AS class_name,
format('%s.%I',text(c.oid::regclass),a.attname) AS sql_identifier,
c.oid as relid,
#if 9.2
attoptions||attfdwoptions as options,
#else
attoptions as options,
#end
format('%I %s%s%s%s%s%s%s',a.attname::text,format_type(t.oid, a.atttypmod),
#if 9.2
case
when a.attfdwoptions is not null
then (
select ' OPTIONS ( '||string_agg(
quote_ident(option_name)||' '||quote_nullable(option_value),
', ')||' ) '
from pg_options_to_table(a.attfdwoptions))
end,
#else
null::text,
#end
CASE
WHEN length(col.collcollate) > 0
THEN ' COLLATE ' || quote_ident(col.collcollate::text)
END
,
#if 10
case when a.attnotnull and attidentity not in ('a','d') then ' NOT NULL' end
#else
case when a.attnotnull THEN ' NOT NULL' end
#end
,
case when 'lite' ilike any($2) then ' DEFAULT ' || pg_get_expr(def.adbin,def.adrelid) end,
#if 10
case when attidentity in ('a','d')
then format(' GENERATED %s AS IDENTITY',
case attidentity
when 'a' then 'ALWAYS'
when 'd' then 'BY DEFAULT'
end)
end
#else
null::text
#end
,
#if 12
case when a.attgenerated = 's'
then format(' GENERATED ALWAYS AS (%s) STORED',
pg_get_expr(def.adbin,def.adrelid))
end
#else
null::text
#end
)
AS definition,
pg_get_serial_sequence(c.oid::regclass::text,a.attname)::regclass as sequence,
#if 14
nullif(case a.attcompression
when 'l' then 'LZ4'
when 'p' then 'PGLZ'
else a.attcompression::text
end,'')
#else
null
#end
AS compression
FROM pg_class c
JOIN pg_namespace s ON s.oid = c.relnamespace
JOIN pg_attribute a ON c.oid = a.attrelid
LEFT JOIN pg_attrdef def ON c.oid = def.adrelid AND a.attnum = def.adnum
LEFT JOIN pg_constraint con
ON con.conrelid = c.oid AND (a.attnum = ANY (con.conkey)) AND con.contype = 'p'
LEFT JOIN pg_type t ON t.oid = a.atttypid
LEFT JOIN pg_collation col ON col.oid = a.attcollation
JOIN pg_namespace tn ON tn.oid = t.typnamespace
LEFT JOIN pg_depend d ON def.oid = d.objid AND d.deptype='n'
LEFT JOIN pg_class seq ON seq.oid = d.refobjid AND seq.relkind='S'
WHERE c.relkind IN ('r','v','c','f','p') AND a.attnum > 0 AND NOT a.attisdropped
AND has_table_privilege(c.oid, 'select') AND has_schema_privilege(s.oid, 'usage')
AND c.oid = $1
ORDER BY s.nspname, c.relname, a.attnum;
$$ strict;
COMMENT ON FUNCTION ddlx_describe(regclass, text[]) IS 'Describe columns of a class';
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_get_constraints(
regclass default null,
OUT namespace name,
OUT class_name name,
OUT constraint_name name,
OUT constraint_type text,
OUT constraint_definition text,
OUT is_deferrable boolean,
OUT initially_deferred boolean,
OUT regclass oid,
OUT oid oid,
OUT is_local boolean)
RETURNS SETOF record LANGUAGE sql AS $$
SELECT nc.nspname AS namespace,
r.relname AS class_name,
c.conname AS constraint_name,
case c.contype
when 'c'::"char" then 'CHECK'::text
when 'f'::"char" then 'FOREIGN KEY'::text
when 'p'::"char" then 'PRIMARY KEY'::text
when 'u'::"char" then 'UNIQUE'::text
when 't'::"char" then 'TRIGGER'::text
when 'x'::"char" then 'EXCLUDE'::text
else c.contype::text
end,
pg_get_constraintdef(c.oid,true) AS constraint_definition,
c.condeferrable AS is_deferrable,
c.condeferred AS initially_deferred,
r.oid as regclass, c.oid AS sysid,
d.refobjid is null AS is_local
FROM pg_constraint c
JOIN pg_class r ON c.conrelid = r.oid
JOIN pg_namespace nc ON nc.oid = c.connamespace
JOIN pg_namespace nr ON nr.oid = r.relnamespace
LEFT JOIN pg_depend d ON d.objid = c.oid AND d.deptype='P'
WHERE $1 IS NULL OR r.oid=$1
$$;
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_get_rules(
regclass default null,
OUT namespace text, OUT class_name text, OUT rule_name text, OUT rule_event text,
OUT is_instead boolean, OUT rule_definition text, OUT regclass regclass)
RETURNS SETOF record LANGUAGE sql AS $$
SELECT n.nspname::text AS namespace,
c.relname::text AS class_name,
r.rulename::text AS rule_name,
CASE
WHEN r.ev_type = '1'::"char" THEN 'SELECT'::text
WHEN r.ev_type = '2'::"char" THEN 'UPDATE'::text
WHEN r.ev_type = '3'::"char" THEN 'INSERT'::text
WHEN r.ev_type = '4'::"char" THEN 'DELETE'::text
ELSE 'UNKNOWN'::text
END AS rule_event,
r.is_instead,
pg_get_ruledef(r.oid, true) AS rule_definition,
c.oid::regclass AS regclass
FROM pg_rewrite r
JOIN pg_class c ON c.oid = r.ev_class
JOIN pg_namespace n ON n.oid = c.relnamespace
WHERE ($1 IS NULL OR c.oid=$1)
AND NOT (r.ev_type = '1'::"char" AND r.rulename = '_RETURN'::name)
ORDER BY r.oid
$$;
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_get_triggers(
regclass default null,
OUT oid oid,
OUT is_constraint text, OUT trigger_name text, OUT action_order text,
OUT event_manipulation text, OUT event_object_sql_identifier text,
OUT action_statement text, OUT action_orientation text,
OUT trigger_definition text, OUT regclass regclass, OUT regprocedure regprocedure,
OUT event_object_schema text, OUT event_object_table text, OUT sql_identifier text)
RETURNS SETOF record LANGUAGE sql AS $$
SELECT t.oid,
CASE t.tgisinternal
WHEN true THEN 'CONSTRAINT'::text
ELSE NULL::text
END AS is_constraint, t.tgname::text AS trigger_name,
CASE (t.tgtype::integer & 64) <> 0
WHEN true THEN 'INSTEAD'::text
ELSE CASE t.tgtype::integer & 2
WHEN 2 THEN 'BEFORE'::text
WHEN 0 THEN 'AFTER'::text
ELSE NULL::text
END
END AS action_order,
array_to_string(array[
case when (t.tgtype::integer & 4) <> 0 then 'INSERT' end,
case when (t.tgtype::integer & 8) <> 0 then 'DELETE' end,
case when (t.tgtype::integer & 16) <> 0 then 'UPDATE' end,
case when (t.tgtype::integer & 32) <> 0 then 'TRUNCATE' end
],' OR ') AS event_manipulation,
c.oid::regclass::text AS event_object_sql_identifier,
p.oid::regprocedure::text AS action_statement,
CASE t.tgtype::integer & 1
WHEN 1 THEN 'ROW'::text
ELSE 'STATEMENT'::text
END AS action_orientation,
pg_get_triggerdef(t.oid,true) as trigger_definition,
c.oid::regclass AS regclass,
p.oid::regprocedure AS regprocedure,
s.nspname::text AS event_object_schema,
c.relname::text AS event_object_table,
(quote_ident(t.tgname::text) || ' ON ') || c.oid::regclass::text AS sql_identifier
FROM pg_trigger t
LEFT JOIN pg_class c ON c.oid = t.tgrelid
LEFT JOIN pg_namespace s ON s.oid = c.relnamespace
LEFT JOIN pg_proc p ON p.oid = t.tgfoid
LEFT JOIN pg_namespace s1 ON s1.oid = p.pronamespace
WHERE $1 IS NULL OR c.oid=$1
$$;
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_get_indexes(
regclass default null,
OUT oid oid, OUT namespace text, OUT class regclass, OUT name text,
OUT tablespace text, OUT constraint_name text, OUT is_local boolean, OUT is_clustered boolean)
RETURNS SETOF record LANGUAGE sql AS $$
SELECT DISTINCT
i.oid AS oid,
n.nspname::text AS namespace,
c.oid AS class,
i.relname::text AS name,
NULL::text AS tablespace,
cc.conname::text AS constraint_name,
d2.refobjid IS NULL AS is_local,
x.indisclustered as is_clustered
FROM pg_index x
JOIN pg_class c ON c.oid = x.indrelid
JOIN pg_namespace n ON n.oid = c.relnamespace
JOIN pg_class i ON i.oid = x.indexrelid
JOIN pg_depend d ON d.objid = x.indexrelid
LEFT JOIN pg_depend d2 ON d2.objid = x.indexrelid
AND d2.deptype='P' AND d2.refclassid='pg_class'::regclass
LEFT JOIN pg_constraint cc
ON cc.oid = d.refobjid AND d.refclassid='pg_constraint'::regclass
WHERE c.relkind in ('r','m','p')
AND i.relkind in ('i','I')
AND d.deptype in ('i','a')
AND ($1 IS NULL OR c.oid = $1)
$$;
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_get_functions(
regproc default null,
OUT oid oid, OUT namespace name, OUT name name, OUT comment text,
OUT owner name, OUT sql_identifier text, OUT language name, OUT attributes text,
OUT retset boolean, OUT is_trigger boolean, OUT returns text, OUT arguments text,
OUT definition text, OUT security text, OUT is_strict text, OUT argtypes oidvector,
OUT cost real, OUT rows real)
RETURNS SETOF record LANGUAGE sql AS $$
SELECT p.oid AS oid,
s.nspname AS namespace,
p.proname AS name,
pg_description.description AS comment,
u.rolname AS owner,
p.oid::regprocedure::text AS sql_identifier,
l.lanname AS language,
CASE p.provolatile
WHEN 'i'::"char" THEN 'IMMUTABLE'::text
WHEN 's'::"char" THEN 'STABLE'::text
WHEN 'v'::"char" THEN 'VOLATILE'::text
ELSE NULL::text
END AS attributes,
p.proretset AS retset,
p.prorettype = 'trigger'::regtype::oid AS is_trigger,
text(p.prorettype::regtype) AS returns,
pg_get_function_arguments(p.oid) AS arguments,
-- oidvectortypes(p.proargtypes) AS argtypes,
p.prosrc AS definition,
CASE p.prosecdef
WHEN true THEN 'DEFINER'::text
ELSE 'INVOKER'::text
END AS security,
case p.proisstrict
WHEN true THEN 'STRICT'::text
ELSE NULL
END AS is_strict,
p.proargtypes AS proargtypes,
p.procost as cost,
p.prorows as rows
FROM pg_proc p
LEFT JOIN pg_namespace s ON s.oid = p.pronamespace
LEFT JOIN pg_language l ON l.oid = p.prolang
LEFT JOIN pg_roles u ON p.proowner = u.oid
LEFT JOIN pg_description ON p.oid = pg_description.objoid
WHERE $1 IS NULL OR p.oid = $1
$$;
--------------------------------------------------------------- ---------------
-- DDL generator functions for individial object types --
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_banner(
name text, kind text, namespace text, owner text, extra text default null
)
RETURNS text LANGUAGE sql AS $$
SELECT format(E'\n%s-- Type: %s ; Name: %s; Owner: %s\n\n',
E'--\n-- ' || $5 || E'\n',
$2,$1,$4)
$$;
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_comment(oid, text[] default '{comments}')
RETURNS text LANGUAGE sql AS $$
select case when comment is not null or 'comments' ilike any($2)
then format(
E'COMMENT ON %s %s IS %L;\n',
sql_kind, sql_identifier, comment
) else ''
end
from (
select obj.sql_kind, sql_identifier,
case
when obj.classid='pg_database'::regclass
then shobj_description(oid,classid::name)
when obj.classid='pg_tablespace'::regclass
then shobj_description(oid,classid::name)
else obj_description(oid)
end as comment
from ddlx_identify($1) as obj
) as c
$$ strict;
--------------------------------------------------------------- ---------------
-- forward declarations, will be redefined later
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_create(oid, text[] default '{}') RETURNS text
LANGUAGE sql AS $$ select null::text $$;
CREATE OR REPLACE FUNCTION ddlx_create_function(regproc, text[] default '{}') RETURNS text
LANGUAGE sql AS $$ select null::text $$;
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_alter_owner(oid, text[] default '{owner}')
RETURNS text LANGUAGE sql AS $$
select case when 'nodcl' ilike any($2) or 'noowner' ilike any($2) or 'lite' ilike any($2) then null
else case
when 'owner' ilike any($2) or obj.owner is distinct from current_role
then
case
when obj.sql_kind = 'INDEX' then null
else 'ALTER '||sql_kind||' '||sql_identifier||
' OWNER TO '||quote_ident(owner)||E';\n'
end end
end
from ddlx_identify($1) obj
$$ strict;
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_create_table(regclass, text[] default '{}')
RETURNS text LANGUAGE sql AS $$
with obj as (select * from ddlx_identify($1))
select
array_to_string(array[
'CREATE '||
case relpersistence
when 'u' then 'UNLOGGED '
when 't' then 'TEMPORARY '
else ''
end
|| obj.sql_kind || ' '
|| case when 'ine' ilike any($2) then 'IF NOT EXISTS ' else '' end
|| obj.sql_identifier
|| case when reloftype>0 then ' OF '||cast(reloftype::regtype as text) else '' end
|| case obj.sql_kind when 'TYPE' then ' AS' else '' end
||
#if 10
case
when c.relispartition
then ' PARTITION OF ' || (SELECT string_agg(i.inhparent::regclass::text,',')
FROM pg_inherits i WHERE i.inhrelid = $1)
else
#end
case when reloftype>0
then ''
else
' (' ||coalesce(E'\n' ||
array_to_string(array_cat(
(SELECT array_agg(' '||definition) FROM ddlx_describe($1,$2) WHERE is_local),
case when 'lite' ilike any($2)
and not 'noconstraints' ilike any($2) then
(SELECT array_agg(' '||sql) FROM
(select ('CONSTRAINT ' || quote_ident(constraint_name) || ' ' || constraint_definition) as sql
from ddlx_get_constraints($1) where is_local order by constraint_type desc, constraint_name) as a)
end
), E',\n') || E'\n','') || ')'
end
#if 10
end
#end
#if 10
,
case when c.relpartbound is not null
then pg_get_expr(c.relpartbound,c.oid,true)
end
#end
,
#if 10
case
when not c.relispartition
then (SELECT 'INHERITS(' || string_agg(i.inhparent::regclass::text,', ') || E')'
FROM pg_inherits i WHERE i.inhrelid = $1)
end
#else
(SELECT 'INHERITS(' || string_agg(i.inhparent::regclass::text,', ') || E')'
FROM pg_inherits i WHERE i.inhrelid = $1)
#end
#if 10
,
CASE
WHEN p.partstrat IS NOT NULL
THEN 'PARTITION BY ' || pg_get_partkeydef($1)
END
#end
#unless 12
,
CASE relhasoids WHEN true THEN 'WITH OIDS' END
#end
,
E'SERVER '||quote_ident(fs.srvname)||E' OPTIONS (\n'||
(select string_agg(
' '||quote_ident(option_name)||' '||quote_nullable(option_value),
E',\n')
from pg_options_to_table(ft.ftoptions))||E'\n)'
],E'\n ')
||
E';\n'
FROM pg_class c JOIN obj ON (true)
LEFT JOIN pg_foreign_table ft ON (c.oid = ft.ftrelid)
LEFT JOIN pg_foreign_server fs ON (ft.ftserver = fs.oid)
#if 10
LEFT JOIN pg_partitioned_table p ON p.partrelid = c.oid
#end
WHERE c.oid = $1
-- AND relkind in ('r','c')
$$ strict;
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_create_view(regclass, text[] default '{}')
RETURNS text LANGUAGE sql AS $$
select
'CREATE '||
case relkind
when 'v' THEN case when 'lite' ilike any($2) then '' else 'OR REPLACE ' end || 'VIEW '
when 'm' THEN 'MATERIALIZED VIEW ' ||
case when 'ine' ilike any($2) then 'IF NOT EXISTS ' else '' end
end || (oid::regclass::text) || E' AS\n' ||
trim(';' from pg_catalog.pg_get_viewdef(oid,true)) ||
#if 9.3
case when relkind='m' and not relispopulated
then E'\n WITH NO DATA'
else E''
end ||
#end
E';\n'
FROM pg_class t
WHERE oid = $1
AND relkind in ('v','m')
$$ strict;
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_alter_sequence(regclass)
RETURNS text LANGUAGE sql AS $function$
with obj as (select * from ddlx_identify($1))
select
'ALTER SEQUENCE '||(oid::regclass::text)
||E'\n INCREMENT BY '||increment
||E'\n MINVALUE '||minimum_value
||E'\n MAXVALUE '||maximum_value
||E'\n START WITH '||start_value
||E'\n '|| case cycle_option when 'YES' then 'CYCLE' else 'NO CYCLE' end
||E';\n'
FROM information_schema.sequences s JOIN obj ON (true)
WHERE sequence_schema = obj.namespace
AND sequence_name = obj.name
AND obj.sql_kind = 'SEQUENCE'
$function$ strict;
CREATE OR REPLACE FUNCTION ddlx_drop_sequence(regclass)
RETURNS text LANGUAGE sql AS $$
with seq as (
select sc.oid::regclass,d.refobjid::regclass,
a.attrelid,a.attname,
#if 10
a.attidentity
#else
''
#end
from pg_class sc
left join pg_depend d on d.objid = sc.oid and d.deptype in ('a','i')
left join pg_attribute a ON a.attrelid = d.refobjid AND a.attnum = d.refobjsubid
where relkind='S' and sc.oid = $1
)
#if 10
select case
when attidentity in ('d','a')
then format(e'ALTER TABLE %s ALTER %I DROP IDENTITY;\n',attrelid::regclass,attname)
else format(e'DROP SEQUENCE IF EXISTS %s;\n',$1::text)
end
#else
select format(e'DROP SEQUENCE IF EXISTS %s;\n',$1::text)
#end
from seq
$$ strict;
CREATE OR REPLACE FUNCTION ddlx_create_sequence(regclass, text[] default '{}')
RETURNS text LANGUAGE sql AS $$
with seq as (
select sc.oid::regclass,d.refobjid::regclass,
a.attrelid,a.attname,
#if 10
a.attidentity
#else
''
#end
from pg_class sc
left join pg_depend d on d.objid = sc.oid and d.deptype in ('a','i')
left join pg_attribute a ON a.attrelid = d.refobjid AND a.attnum = d.refobjsubid
where relkind='S' and sc.oid = $1
)
#if 10
select case
when attidentity in ('d','a')
then format(e'ALTER TABLE %s ALTER %I ADD GENERATED %s AS IDENTITY;\n',
attrelid::regclass,attname,
case attidentity::text
when 'd' then 'BY DEFAULT'
when 'a' then 'ALWAYS'
else attidentity::text
end)
else format(e'CREATE SEQUENCE %s%s;\n',
case when 'ine' ilike any($2) then 'IF NOT EXISTS ' end,
$1::text)
end
#else
select format(e'CREATE SEQUENCE %s%s;\n',
case when 'ine' ilike any($2) then 'IF NOT EXISTS ' end,
$1::text)
#end
from seq
$$ strict;
--------------------------------------------------------------- ---------------
CREATE OR REPLACE FUNCTION ddlx_create_type_shell(regtype)
RETURNS text LANGUAGE sql AS $$
select format('CREATE TYPE ' || format_type(oid,null) || e';\n\n') ||
(select string_agg(ddlx_create_function(u,'{compact}'),'')
from unnest(array[t.typinput,t.typoutput,t.typsend,t.typreceive]) as u)
from pg_type t