Odpowiedzi:
pg_dump -t 'schema-name.table-name' --schema-only database-nameWięcej informacji - w instrukcji .
aschemarzeczywistą nazwą schematu tabeli, którą chcesz zrzucić. Zastąp atablerzeczywistą nazwą tabeli, którą chcesz zrzucić.
pg_dump mydb -t '"TableName"' --schema-only- w przeciwnym razie pg_dump nie rozpozna nazwy tabeli.
Moim rozwiązaniem jest zalogowanie się do bazy danych postgres przy użyciu psql z opcją -E w następujący sposób:
psql -E -U username -d database W psql uruchom następujące polecenia, aby zobaczyć sql, którego Postgres używa do wygenerowania
instrukcji tabela opisu:
-- List all tables in the schema (my example schema name is public)
\dt public.*
-- Choose a table name from above
-- For create table of one public.tablename
\d+ public.tablename W oparciu o sql powtórzone po uruchomieniu tych komend opisujących, byłem w stanie
zestawić następującą funkcję plpgsql:
CREATE OR REPLACE FUNCTION generate_create_table_statement(p_table_name varchar)
RETURNS text AS
$BODY$
DECLARE
v_table_ddl text;
column_record record;
BEGIN
FOR column_record IN
SELECT
b.nspname as schema_name,
b.relname as table_name,
a.attname as column_name,
pg_catalog.format_type(a.atttypid, a.atttypmod) as column_type,
CASE WHEN
(SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
FROM pg_catalog.pg_attrdef d
WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef) IS NOT NULL THEN
'DEFAULT '|| (SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
FROM pg_catalog.pg_attrdef d
WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef)
ELSE
''
END as column_default_value,
CASE WHEN a.attnotnull = true THEN
'NOT NULL'
ELSE
'NULL'
END as column_not_null,
a.attnum as attnum,
e.max_attnum as max_attnum
FROM
pg_catalog.pg_attribute a
INNER JOIN
(SELECT c.oid,
n.nspname,
c.relname
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE c.relname ~ ('^('||p_table_name||')$')
AND pg_catalog.pg_table_is_visible(c.oid)
ORDER BY 2, 3) b
ON a.attrelid = b.oid
INNER JOIN
(SELECT
a.attrelid,
max(a.attnum) as max_attnum
FROM pg_catalog.pg_attribute a
WHERE a.attnum > 0
AND NOT a.attisdropped
GROUP BY a.attrelid) e
ON a.attrelid=e.attrelid
WHERE a.attnum > 0
AND NOT a.attisdropped
ORDER BY a.attnum
LOOP
IF column_record.attnum = 1 THEN
v_table_ddl:='CREATE TABLE '||column_record.schema_name||'.'||column_record.table_name||' (';
ELSE
v_table_ddl:=v_table_ddl||',';
END IF;
IF column_record.attnum <= column_record.max_attnum THEN
v_table_ddl:=v_table_ddl||chr(10)||
' '||column_record.column_name||' '||column_record.column_type||' '||column_record.column_default_value||' '||column_record.column_not_null;
END IF;
END LOOP;
v_table_ddl:=v_table_ddl||');';
RETURN v_table_ddl;
END;
$BODY$
LANGUAGE 'plpgsql' COST 100.0 SECURITY INVOKER;Oto użycie funkcji:
SELECT generate_create_table_statement('tablename');A oto instrukcja drop, jeśli nie chcesz, aby ta funkcja trwała trwale:
DROP FUNCTION generate_create_table_statement(p_table_name varchar);NULLdla mnie ... A jak obsługiwany jest schemat? Czy powinien zwracać instrukcje CREATE dla tabel o określonej nazwie ze wszystkich schematów?
Wygeneruj instrukcję create table dla tabeli w postgresql z wiersza poleceń Linux:
Ta instrukcja wyświetla dla mnie instrukcję tworzenia instrukcji sql:
pg_dump -U your_db_user_name your_database -t your_table_name --schema-onlyWyjaśnienie:
pg_dump pomaga nam uzyskać informacje o samej bazie danych. -Uoznacza nazwę użytkownika. Mój użytkownik pgadmin nie ma ustawionego hasła, więc nie muszę go wpisywać. Te -tśrodki opcja określić dla jednej tabeli. --schema-onlyoznacza drukowanie tylko danych o tabeli, a nie danych w tabeli. Oto dokładne polecenie, którego używam:
pg_dump -U pgadmin kurz_prod -t fact_stock_info --schema-onlyJeśli chcesz znaleźć instrukcję create dla tabeli bez użycia pg_dump, to zapytanie może Ci pomóc (zmień 'tablename' na dowolną nazwę tabeli):
SELECT
'CREATE TABLE ' || relname || E'\n(\n' ||
array_to_string(
array_agg(
' ' || column_name || ' ' || type || ' '|| not_null
)
, E',\n'
) || E'\n);\n'
from
(
SELECT
c.relname, a.attname AS column_name,
pg_catalog.format_type(a.atttypid, a.atttypmod) as type,
case
when a.attnotnull
then 'NOT NULL'
else 'NULL'
END as not_null
FROM pg_class c,
pg_attribute a,
pg_type t
WHERE c.relname = 'tablename'
AND a.attnum > 0
AND a.attrelid = c.oid
AND a.atttypid = t.oid
ORDER BY a.attnum
) as tabledefinition
group by relname;wywoływany bezpośrednio z psql, użyteczne jest wykonywanie:
\pset linestyle old-asciiRównież funkcja generate_create_table_statement w tym wątku działa bardzo dobrze.
pg_dump. przydatne wszystkie te same +1
Dean Toader Po prostu świetnie! Zmodyfikowałbym trochę twój kod, aby pokazać wszystkie ograniczenia w tabeli i umożliwić użycie maski wyrażenia regularnego w nazwie tabeli.
CREATE OR REPLACE FUNCTION public.generate_create_table_statement(p_table_name character varying)
RETURNS SETOF text AS
$BODY$
DECLARE
v_table_ddl text;
column_record record;
table_rec record;
constraint_rec record;
firstrec boolean;
BEGIN
FOR table_rec IN
SELECT c.relname FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE relkind = 'r'
AND relname~ ('^('||p_table_name||')$')
AND n.nspname <> 'pg_catalog'
AND n.nspname <> 'information_schema'
AND n.nspname !~ '^pg_toast'
AND pg_catalog.pg_table_is_visible(c.oid)
ORDER BY c.relname
LOOP
FOR column_record IN
SELECT
b.nspname as schema_name,
b.relname as table_name,
a.attname as column_name,
pg_catalog.format_type(a.atttypid, a.atttypmod) as column_type,
CASE WHEN
(SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
FROM pg_catalog.pg_attrdef d
WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef) IS NOT NULL THEN
'DEFAULT '|| (SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
FROM pg_catalog.pg_attrdef d
WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef)
ELSE
''
END as column_default_value,
CASE WHEN a.attnotnull = true THEN
'NOT NULL'
ELSE
'NULL'
END as column_not_null,
a.attnum as attnum,
e.max_attnum as max_attnum
FROM
pg_catalog.pg_attribute a
INNER JOIN
(SELECT c.oid,
n.nspname,
c.relname
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE c.relname = table_rec.relname
AND pg_catalog.pg_table_is_visible(c.oid)
ORDER BY 2, 3) b
ON a.attrelid = b.oid
INNER JOIN
(SELECT
a.attrelid,
max(a.attnum) as max_attnum
FROM pg_catalog.pg_attribute a
WHERE a.attnum > 0
AND NOT a.attisdropped
GROUP BY a.attrelid) e
ON a.attrelid=e.attrelid
WHERE a.attnum > 0
AND NOT a.attisdropped
ORDER BY a.attnum
LOOP
IF column_record.attnum = 1 THEN
v_table_ddl:='CREATE TABLE '||column_record.schema_name||'.'||column_record.table_name||' (';
ELSE
v_table_ddl:=v_table_ddl||',';
END IF;
IF column_record.attnum <= column_record.max_attnum THEN
v_table_ddl:=v_table_ddl||chr(10)||
' '||column_record.column_name||' '||column_record.column_type||' '||column_record.column_default_value||' '||column_record.column_not_null;
END IF;
END LOOP;
firstrec := TRUE;
FOR constraint_rec IN
SELECT conname, pg_get_constraintdef(c.oid) as constrainddef
FROM pg_constraint c
WHERE conrelid=(
SELECT attrelid FROM pg_attribute
WHERE attrelid = (
SELECT oid FROM pg_class WHERE relname = table_rec.relname
) AND attname='tableoid'
)
LOOP
v_table_ddl:=v_table_ddl||','||chr(10);
v_table_ddl:=v_table_ddl||'CONSTRAINT '||constraint_rec.conname;
v_table_ddl:=v_table_ddl||chr(10)||' '||constraint_rec.constrainddef;
firstrec := FALSE;
END LOOP;
v_table_ddl:=v_table_ddl||');';
RETURN NEXT v_table_ddl;
END LOOP;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
ALTER FUNCTION public.generate_create_table_statement(character varying)
OWNER TO postgres;Teraz możesz na przykład wykonać następujące zapytanie
SELECT * FROM generate_create_table_statement('.*');co daje takie wyniki:
CREATE TABLE public.answer (
id integer DEFAULT nextval('answer_id_seq'::regclass) NOT NULL,
questionid integer NOT NULL,
title character varying NOT NULL,
defaultvalue character varying NULL,
valuetype integer NOT NULL,
isdefault boolean NULL,
minval double precision NULL,
maxval double precision NULL,
followminmax integer DEFAULT 0 NOT NULL,
CONSTRAINT answer_pkey
PRIMARY KEY (id),
CONSTRAINT answer_questionid_fkey
FOREIGN KEY (questionid) REFERENCES question(id) ON UPDATE RESTRICT ON DELETE RESTRICT,
CONSTRAINT answer_valuetype_fkey
FOREIGN KEY (valuetype) REFERENCES answervaluetype(id) ON UPDATE RESTRICT ON DELETE RESTRICT);dla każdej tabeli użytkowników.
Najłatwiejszą metodą, jaką mogę wymyślić, jest zainstalowanie pgAdmin 3 ( tutaj ) i użycie go do przeglądania bazy danych. Automatycznie wygeneruje zapytanie, które utworzy tabelę, o której mowa.
Jeśli chcesz to zrobić dla różnych tabel jednocześnie, chciałeś użyć przełącznika -t wiele razy (zajęło mi trochę czasu, aby dowiedzieć się, dlaczego lista rozdzielana przecinkami nie działa). Przydatne może być także wysyłanie wyników do pliku wyjściowego lub potoku do serwera Postgres na innym komputerze
pg_dump -t table1 -t table2 database_name --schema-only > dump.sql
pg_dump -t table1 -t table2 database_name --schema-only | psql -h server_name database_nameJeszcze więcej modyfikacji w oparciu o odpowiedź @vkkeeper. Dodano możliwość zapytania do tabeli z określonego schematu.
CREATE OR REPLACE FUNCTION public.describe_table(p_schema_name character varying, p_table_name character varying)
RETURNS SETOF text AS
$BODY$
DECLARE
v_table_ddl text;
column_record record;
table_rec record;
constraint_rec record;
firstrec boolean;
BEGIN
FOR table_rec IN
SELECT c.relname, c.oid FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE relkind = 'r'
AND n.nspname = p_schema_name
AND relname~ ('^('||p_table_name||')$')
ORDER BY c.relname
LOOP
FOR column_record IN
SELECT
b.nspname as schema_name,
b.relname as table_name,
a.attname as column_name,
pg_catalog.format_type(a.atttypid, a.atttypmod) as column_type,
CASE WHEN
(SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
FROM pg_catalog.pg_attrdef d
WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef) IS NOT NULL THEN
'DEFAULT '|| (SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
FROM pg_catalog.pg_attrdef d
WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef)
ELSE
''
END as column_default_value,
CASE WHEN a.attnotnull = true THEN
'NOT NULL'
ELSE
'NULL'
END as column_not_null,
a.attnum as attnum,
e.max_attnum as max_attnum
FROM
pg_catalog.pg_attribute a
INNER JOIN
(SELECT c.oid,
n.nspname,
c.relname
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE c.oid = table_rec.oid
ORDER BY 2, 3) b
ON a.attrelid = b.oid
INNER JOIN
(SELECT
a.attrelid,
max(a.attnum) as max_attnum
FROM pg_catalog.pg_attribute a
WHERE a.attnum > 0
AND NOT a.attisdropped
GROUP BY a.attrelid) e
ON a.attrelid=e.attrelid
WHERE a.attnum > 0
AND NOT a.attisdropped
ORDER BY a.attnum
LOOP
IF column_record.attnum = 1 THEN
v_table_ddl:='CREATE TABLE '||column_record.schema_name||'.'||column_record.table_name||' (';
ELSE
v_table_ddl:=v_table_ddl||',';
END IF;
IF column_record.attnum <= column_record.max_attnum THEN
v_table_ddl:=v_table_ddl||chr(10)||
' '||column_record.column_name||' '||column_record.column_type||' '||column_record.column_default_value||' '||column_record.column_not_null;
END IF;
END LOOP;
firstrec := TRUE;
FOR constraint_rec IN
SELECT conname, pg_get_constraintdef(c.oid) as constrainddef
FROM pg_constraint c
WHERE conrelid=(
SELECT attrelid FROM pg_attribute
WHERE attrelid = (
SELECT oid FROM pg_class WHERE relname = table_rec.relname
AND relnamespace = (SELECT ns.oid FROM pg_namespace ns WHERE ns.nspname = p_schema_name)
) AND attname='tableoid'
)
LOOP
v_table_ddl:=v_table_ddl||','||chr(10);
v_table_ddl:=v_table_ddl||'CONSTRAINT '||constraint_rec.conname;
v_table_ddl:=v_table_ddl||chr(10)||' '||constraint_rec.constrainddef;
firstrec := FALSE;
END LOOP;
v_table_ddl:=v_table_ddl||');';
RETURN NEXT v_table_ddl;
END LOOP;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;Oto nieco ulepszona wersja shekwi „s zapytań .
Generuje ograniczenie klucza podstawowego i jest w stanie obsłużyć tabele tymczasowe:
with pkey as
(
select cc.conrelid, format(E',
constraint %I primary key(%s)', cc.conname,
string_agg(a.attname, ', '
order by array_position(cc.conkey, a.attnum))) pkey
from pg_catalog.pg_constraint cc
join pg_catalog.pg_class c on c.oid = cc.conrelid
join pg_catalog.pg_attribute a on a.attrelid = cc.conrelid
and a.attnum = any(cc.conkey)
where cc.contype = 'p'
group by cc.conrelid, cc.conname
)
select format(E'create %stable %s%I\n(\n%s%s\n);\n',
case c.relpersistence when 't' then 'temporary ' else '' end,
case c.relpersistence when 't' then '' else n.nspname || '.' end,
c.relname,
string_agg(
format(E'\t%I %s%s',
a.attname,
pg_catalog.format_type(a.atttypid, a.atttypmod),
case when a.attnotnull then ' not null' else '' end
), E',\n'
order by a.attnum
),
(select pkey from pkey where pkey.conrelid = c.oid)) as sql
from pg_catalog.pg_class c
join pg_catalog.pg_namespace n on n.oid = c.relnamespace
join pg_catalog.pg_attribute a on a.attrelid = c.oid and a.attnum > 0
join pg_catalog.pg_type t on a.atttypid = t.oid
where c.relname = :table_name
group by c.oid, c.relname, c.relpersistence, n.nspname;Użyj table_nameparametru, aby określić nazwę tabeli.
pg_dump -h XXXXXXXXXXX.us-west-1.rds.amazonaws.com -U anyuser -t tablename -sTa odmiana działa dla mnie:
pg_dump -U user_viktor -h localhost unit_test_database -t floorplanpreferences_table --schema-only
Ponadto, jeśli używasz schematów, oczywiście musisz również to określić:
pg_dump -U user_viktor -h localhost unit_test_database -t "949766e0-e81e-11e3-b325-1cc1de32fcb6".floorplanpreferences_table --schema-only
Otrzymasz wyjście, którego możesz użyć do ponownego utworzenia tabeli, po prostu uruchom to wyjście w psql.
Proste rozwiązanie w czystym pojedynczym SQL. Masz pomysł, możesz rozszerzyć go na więcej atrybutów, które chcesz pokazać.
with c as (
SELECT table_name, ordinal_position,
column_name|| ' ' || data_type col
, row_number() over (partition by table_name order by ordinal_position asc) rn
, count(*) over (partition by table_name) cnt
FROM information_schema.columns
WHERE table_name in ('pg_index', 'pg_tables')
order by table_name, ordinal_position
)
select case when rn = 1 then 'create table ' || table_name || '(' else '' end
|| col
|| case when rn < cnt then ',' else '); ' end
from c
order by table_name, rn asc;Wynik:
create table pg_index(indexrelid oid,
indrelid oid,
indnatts smallint,
indisunique boolean,
indisprimary boolean,
indisexclusion boolean,
indimmediate boolean,
indisclustered boolean,
indisvalid boolean,
indcheckxmin boolean,
indisready boolean,
indislive boolean,
indisreplident boolean,
indkey ARRAY,
indcollation ARRAY,
indclass ARRAY,
indoption ARRAY,
indexprs pg_node_tree,
indpred pg_node_tree);
create table pg_tables(schemaname name,
tablename name,
tableowner name,
tablespace name,
hasindexes boolean,
hasrules boolean,
hastriggers boolean,
rowsecurity boolean);Oto pojedyncza instrukcja, która wygeneruje DDL dla pojedynczej tabeli w określonym schemacie, łącznie z ograniczeniami.
SELECT 'CREATE TABLE ' || pn.nspname || '.' || pc.relname || E'(\n' ||
string_agg(pa.attname || ' ' || pg_catalog.format_type(pa.atttypid, pa.atttypmod) || coalesce(' DEFAULT ' || (
SELECT pg_catalog.pg_get_expr(d.adbin, d.adrelid)
FROM pg_catalog.pg_attrdef d
WHERE d.adrelid = pa.attrelid
AND d.adnum = pa.attnum
AND pa.atthasdef
),
'') || ' ' ||
CASE pa.attnotnull
WHEN TRUE THEN 'NOT NULL'
ELSE 'NULL'
END, E',\n') ||
coalesce((SELECT E',\n' || string_agg('CONSTRAINT ' || pc1.conname || ' ' || pg_get_constraintdef(pc1.oid), E',\n' ORDER BY pc1.conindid)
FROM pg_constraint pc1
WHERE pc1.conrelid = pa.attrelid), '') ||
E');'
FROM pg_catalog.pg_attribute pa
JOIN pg_catalog.pg_class pc
ON pc.oid = pa.attrelid
AND pc.relname = 'table_name'
JOIN pg_catalog.pg_namespace pn
ON pn.oid = pc.relnamespace
AND pn.nspname = 'schema_name'
WHERE pa.attnum > 0
AND NOT pa.attisdropped
GROUP BY pn.nspname, pc.relname, pa.attrelid;Podobnie jak inne wspomniane odpowiedzi, nie ma wbudowanej funkcji, która to robi.
Oto funkcja, która próbuje uzyskać wszystkie informacje, które byłyby potrzebne do zreplikowania tabeli - lub do porównania wdrożonych i zarejestrowanych w ddl.
Ta funkcja generuje:
CREATE OR REPLACE FUNCTION public.show_create_table(
in_schema_name varchar,
in_table_name varchar
)
RETURNS text
LANGUAGE plpgsql VOLATILE
AS
$$
DECLARE
-- the ddl we're building
v_table_ddl text;
-- data about the target table
v_table_oid int;
-- records for looping
v_column_record record;
v_constraint_record record;
v_index_record record;
BEGIN
-- grab the oid of the table; https://www.postgresql.org/docs/8.3/catalog-pg-class.html
SELECT c.oid INTO v_table_oid
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE 1=1
AND c.relkind = 'r' -- r = ordinary table; https://www.postgresql.org/docs/9.3/catalog-pg-class.html
AND c.relname = in_table_name -- the table name
AND n.nspname = in_schema_name; -- the schema
-- throw an error if table was not found
IF (v_table_oid IS NULL) THEN
RAISE EXCEPTION 'table does not exist';
END IF;
-- start the create definition
v_table_ddl := 'CREATE TABLE ' || in_schema_name || '.' || in_table_name || ' (' || E'\n';
-- define all of the columns in the table; https://stackoverflow.com/a/8153081/3068233
FOR v_column_record IN
SELECT
c.column_name,
c.data_type,
c.character_maximum_length,
c.is_nullable,
c.column_default
FROM information_schema.columns c
WHERE (table_schema, table_name) = (in_schema_name, in_table_name)
ORDER BY ordinal_position
LOOP
v_table_ddl := v_table_ddl || ' ' -- note: two char spacer to start, to indent the column
|| v_column_record.column_name || ' '
|| v_column_record.data_type || CASE WHEN v_column_record.character_maximum_length IS NOT NULL THEN ('(' || v_column_record.character_maximum_length || ')') ELSE '' END || ' '
|| CASE WHEN v_column_record.is_nullable = 'NO' THEN 'NOT NULL' ELSE 'NULL' END
|| CASE WHEN v_column_record.column_default IS NOT null THEN (' DEFAULT ' || v_column_record.column_default) ELSE '' END
|| ',' || E'\n';
END LOOP;
-- define all the constraints in the; https://www.postgresql.org/docs/9.1/catalog-pg-constraint.html && https://dba.stackexchange.com/a/214877/75296
FOR v_constraint_record IN
SELECT
con.conname as constraint_name,
con.contype as constraint_type,
CASE
WHEN con.contype = 'p' THEN 1 -- primary key constraint
WHEN con.contype = 'u' THEN 2 -- unique constraint
WHEN con.contype = 'f' THEN 3 -- foreign key constraint
WHEN con.contype = 'c' THEN 4
ELSE 5
END as type_rank,
pg_get_constraintdef(con.oid) as constraint_definition
FROM pg_catalog.pg_constraint con
JOIN pg_catalog.pg_class rel ON rel.oid = con.conrelid
JOIN pg_catalog.pg_namespace nsp ON nsp.oid = connamespace
WHERE nsp.nspname = in_schema_name
AND rel.relname = in_table_name
ORDER BY type_rank
LOOP
v_table_ddl := v_table_ddl || ' ' -- note: two char spacer to start, to indent the column
|| 'CONSTRAINT' || ' '
|| v_constraint_record.constraint_name || ' '
|| v_constraint_record.constraint_definition
|| ',' || E'\n';
END LOOP;
-- drop the last comma before ending the create statement
v_table_ddl = substr(v_table_ddl, 0, length(v_table_ddl) - 1) || E'\n';
-- end the create definition
v_table_ddl := v_table_ddl || ');' || E'\n';
-- suffix create statement with all of the indexes on the table
FOR v_index_record IN
SELECT indexdef
FROM pg_indexes
WHERE (schemaname, tablename) = (in_schema_name, in_table_name)
LOOP
v_table_ddl := v_table_ddl
|| v_index_record.indexdef
|| ';' || E'\n';
END LOOP;
-- return the ddl
RETURN v_table_ddl;
END;
$$;SELECT * FROM public.show_create_table('public', 'example_table');produkuje
CREATE TABLE public.example_table (
id bigint NOT NULL DEFAULT nextval('test_tb_for_show_create_on_id_seq'::regclass),
name character varying(150) NULL,
level character varying(50) NULL,
description text NOT NULL DEFAULT 'hello there!'::text,
CONSTRAINT test_tb_for_show_create_on_pkey PRIMARY KEY (id),
CONSTRAINT test_tb_for_show_create_on_level_check CHECK (((level)::text = ANY ((ARRAY['info'::character varying, 'warn'::character varying, 'error'::character varying])::text[])))
);
CREATE UNIQUE INDEX test_tb_for_show_create_on_pkey ON public.test_tb_for_show_create_on USING btree (id);W bazie danych pgadminIII >> schematy >> tabele >> kliknij prawym przyciskiem myszy „Twoja tabela” >> skrypty >> „Wybierz dowolny (Utwórz, Wstaw, Aktualizuj, Usuń ...)”
Oto zapytanie z pewnymi zmianami,
select 'CREATE TABLE ' || a.attrelid::regclass::text || '(' ||
string_agg(a.attname || ' ' || pg_catalog.format_type(a.atttypid,
a.atttypmod)||
CASE WHEN
(SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
FROM pg_catalog.pg_attrdef d
WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef) IS NOT NULL THEN
' DEFAULT '|| (SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
FROM pg_catalog.pg_attrdef d
WHERE d.adrelid = a.attrelid AND d.adnum = a.attnum AND a.atthasdef)
ELSE
'' END
||
CASE WHEN a.attnotnull = true THEN
' NOT NULL'
ELSE
'' END,E'\n,') || ');'
FROM pg_catalog.pg_attribute a join pg_class on a.attrelid=pg_class.oid
WHERE a.attrelid::regclass::varchar =
'TABLENAME_with_or_without_schema'
AND a.attnum > 0 AND NOT a.attisdropped and pg_class.relkind='r'
group by a.attrelid;
pg_dump mydb -t mytable --schema-only.