Re: [GENERAL] CREATE TABLE LIKE including all not including storage parameters?
On 05/09/2017 13:26, Michael Paquier wrote: On Tue, Sep 5, 2017 at 6:45 PM, Achilleas Mantzios wrote: Am I doing something wrong here? I didn't sat that :) but you are right, STORAGE settings for copied col defs != tables's storage parameters. The key here is that LIKE deals with columns only, not other parameters of the table. From the documentation: https://www.postgresql.org/docs/devel/static/sql-createtable.html STORAGE settings for the copied column definitions will be copied only if INCLUDING STORAGE is specified. The default behavior is to exclude STORAGE settings, resulting in the copied columns in the new table having type-specific default settings. For more on STORAGE settings, see Section 66.2. And in this case storage parameters refer to column-specific settings, not table-level storage parameters, which are defined here by toast: https://www.postgresql.org/docs/devel/static/storage-toast.html -- Achilleas Mantzios IT DEV Lead IT DEPT Dynacom Tankers Mgmt -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] CREATE TABLE LIKE including all not including storage parameters?
On Tue, Sep 5, 2017 at 6:45 PM, Achilleas Mantzios wrote: > Am I doing something wrong here? >From the documentation: https://www.postgresql.org/docs/devel/static/sql-createtable.html STORAGE settings for the copied column definitions will be copied only if INCLUDING STORAGE is specified. The default behavior is to exclude STORAGE settings, resulting in the copied columns in the new table having type-specific default settings. For more on STORAGE settings, see Section 66.2. And in this case storage parameters refer to column-specific settings, not table-level storage parameters, which are defined here by toast: https://www.postgresql.org/docs/devel/static/storage-toast.html -- Michael -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] CREATE TABLE LIKE including all not including storage parameters?
On 05/09/2017 11:56, Milen Blagojevic wrote: Hi all, I am using CREATE TABLE LIKE for creating partitions : Lets say this is my main table: \d+ test_tabl Table "public.test_tabl" Column|Type | Modifiers | Storage | Stats target | Description --+-+---+--+--+- id | integer | not null | plain| | test_name| character varying(10) | | extended | | test_value | numeric(19,3) | | main | | time_created | timestamp without time zone | | plain| | Indexes: "test_tabl_pkey" PRIMARY KEY, btree (id) "ix_test_tabl_time_created" btree (time_created) Child tables: test_tabl_20170905 Options: fillfactor=75 I am creating new partitions with following query: create table test_tabl_20170906 (like test_tabl INCLUDING ALL) inherits (test_tabl); \d+ test_tabl_20170906 Table "public.test_tabl_20170906" Column|Type | Modifiers | Storage | Stats target | Description --+-+---+--+--+- id | integer | not null | plain| | test_name| character varying(10) | | extended | | test_value | numeric(19,3) | | main | | time_created | timestamp without time zone | | plain| | Indexes: "test_tabl_20170906_pkey" PRIMARY KEY, btree (id) "test_tabl_20170906_time_created_idx" btree (time_created) Inherits: test_tabl According to PostgreSQL documentation: INCLUDING ALL is an abbreviated form of INCLUDING DEFAULTS INCLUDING CONSTRAINTS INCLUDING INDEXES INCLUDING STORAGE INCLUDING COMMENTS. But in this case child table didn't inherit filfactor (behaviour is the same for autovacuum parameters) Version is 9.4.13: version PostgreSQL 9.4.13 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11), 64-bit Same in PostgreSQL 10beta3 on x86_64-pc-linux-gnu. testdb=# create table dad(foo text) WITH (fillfactor=99, autovacuum_freeze_max_age=2000); CREATE TABLE testdb=# create table dadkid1 (like dad INCLUDING STORAGE); CREATE TABLE testdb=# \d+ dadkid1 Table "public.dadkid1" Column | Type | Collation | Nullable | Default | Storage | Stats target | Description +--+---+--+-+--+--+- foo| text | | | | extended | | Am I doing something wrong here? Thanks in advance. Regards, Milen Blagojevic -- Achilleas Mantzios IT DEV Lead IT DEPT Dynacom Tankers Mgmt
[GENERAL] CREATE TABLE LIKE including all not including storage parameters?
Hi all, I am using CREATE TABLE LIKE for creating partitions : Lets say this is my main table: \d+ test_tabl Table "public.test_tabl" Column|Type | Modifiers | Storage | Stats target | Description --+-+---+--- ---+--+- id | integer | not null | plain| | test_name| character varying(10) | | extended | | test_value | numeric(19,3) | | main | | time_created | timestamp without time zone | | plain| | Indexes: "test_tabl_pkey" PRIMARY KEY, btree (id) "ix_test_tabl_time_created" btree (time_created) Child tables: test_tabl_20170905 Options: fillfactor=75 I am creating new partitions with following query: create table test_tabl_20170906 (like test_tabl INCLUDING ALL) inherits (test_tabl); \d+ test_tabl_20170906 Table "public.test_tabl_20170906" Column|Type | Modifiers | Storage | Stats target | Description --+-+---+--- ---+--+- id | integer | not null | plain| | test_name| character varying(10) | | extended | | test_value | numeric(19,3) | | main | | time_created | timestamp without time zone | | plain| | Indexes: "test_tabl_20170906_pkey" PRIMARY KEY, btree (id) "test_tabl_20170906_time_created_idx" btree (time_created) Inherits: test_tabl According to PostgreSQL documentation: INCLUDING ALL is an abbreviated form of INCLUDING DEFAULTS INCLUDING CONSTRAINTS INCLUDING INDEXES INCLUDING STORAGE INCLUDING COMMENTS. But in this case child table didn't inherit filfactor (behaviour is the same for autovacuum parameters) Version is 9.4.13: version PostgreSQL 9.4.13 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11), 64-bit Am I doing something wrong here? Thanks in advance. Regards, Milen Blagojevic
