I want to insert text data into a Postgres bytea column using the concat function or the || operator. I am getting an error
column "name" is of type bytea but expression is of type text
create table test(
name bytea
);
insert into test(name) values(concat('abac-' , 'test123'));
insert into test(name) values('aa' || 'bb');
I am executing the insert inside a stored procedure. If want to add the argument like
(concat('abac-' , row.name , 'test123'));
How do I do it?
Perform a type cast after concatenating the values:
INSERT INTO test (name)
VALUES (CAST('abac-' || row.name || 'test123' AS bytea));
Note: The difference between || and concat is how they behave with NULLs.
You need to cast both strings to bytea, for example:
insert into test(name) values('aa'::bytea || 'bb'::bytea);
I want to import csv with Postgres' arrays into a Postgres table.
This is my table:
create table dbo.countries (
id char(2) primary key,
name text not null,
elements text[]
CONSTRAINT const_dbo_countries_unique1 unique (id),
CONSTRAINT const_dbo_countries_unique2 unique (name)
);
and I want to insert into that a csv which looks like this:
AC,ac,{xx yy}
When I type copy dbo.mytable FROM '/home/file.csv' delimiter ',' csv; then the array is read as a one string: {"xx yy"}.
How to change a deafault separator for arrays from , to ?
You cannot to change array's separator symbol. You can read data to table, and later you can run a update on this table:
UPDATE dbo.countries
SET elements = string_to_array(elements[1], ' ')
WHERE strpos(elements[1], ' ') > 0;
I am trying to insert data into a postgres table from a remote database table. I have written the following query for this purpose but I am getting following error.
'[Code: 0, SQL State: 42601] ERROR: syntax error at or near "table"
Position: 13 [Script position: 141 - 146]'
create table clintrial_EP_map.lead_sponsors (row_id SERIAL, lead_sponsors character varying)
insert into table clintrial_ep_map (lead_sponsors)
( select
*
from
dblink('dbname=x user=x host=x password=x port = x',
'
SELECT
distinct bm_dimt_clinical_trial.lead_sponsor
FROM
dwh_prod.bm_dimt_clinical_trial
where dataset_version_id = xx and lead_sponsor_class = ''xx''
'
) as ls (
lead_sponsor character varying
)
)
;
Please see, the following query is giving me desired output.
select
*
from
dblink('dbname=x user=x host=x password=x port = x',
'
SELECT
distinct bm_dimt_clinical_trial.lead_sponsor
FROM
dwh_prod.bm_dimt_clinical_trial
where dataset_version_id = xx and lead_sponsor_class = ''xx''
'
) as ls (
lead_sponsor character varying
)
;
I am not able to find a syntax error near 'table' in my insert query. Any suggestions here will be really helpful.
Thanks
Your query has two issues.
First: Create table is not ending with ; i am hoping that is typo and Second: Your insert statement is referring to schema name instead of schema qualified table name. And also using keyword 'table' in insert statment which is not required. So your correct query will be
create table clintrial_EP_map.lead_sponsors (row_id SERIAL, lead_sponsors character varying);
and
insert into clintrial_EP_map.lead_sponsors (lead_sponsors)
( select * from
dblink('dbname=x user=x host=x password=x port = x',
'SELECT
distinct bm_dimt_clinical_trial.lead_sponsor
FROM
dwh_prod.bm_dimt_clinical_trial
where dataset_version_id = xx and lead_sponsor_class = ''xx''
'
) as ls (lead_sponsor character varying)
);
I'm trying to insert point geometry values and other data from one table to another table.
-- create tables
create table bh_tmp (bh_id integer, bh_name varchar
, easting decimal, northing decimal, ground_mod decimal);
create table bh (name varchar);
SELECT AddGeometryColumn('bh', 'bh_geom', 27700, 'POINT',3);
-- popualte bh_tmp
insert into bh_tmp values
(1,'C5',542945.0,180846.0,3.947),
(3,'B24',542850.0,180850.0,4.020),
(4,'B26',543020.0,180850.0,4.020);
-- populate bh from bh_tmp
insert into bh(name, bh_geom) SELECT
bh_name,
CONCAT($$ST_GeomFromText('POINT($$, Easting, ' ', Northing, ' '
, Ground_mOD, $$)', 27700)$$);
FROM bh_tmp;
Gives this error:
ERROR: parse error - invalid geometry
SQL state: XX000
Hint: "ST" <-- parse error at position 2 within geometry
I can't see anything wrong with the ST_GeomFromText string that I've specified. But I can populate table bh if I insert rows 'manually', e.g.:
INSERT INTO bh (name, bh_geom)
VALUES ('C5' ST_GeomFromText('POINT(542945.0 180846.0 3.947)', 27700));
What am I doing wrong?
First of all, there is a misplaced semicolon after CONCAT(...);
And you can't concatenate the function name itself into the string:
INSERT INTO bh(name, bh_geom)
SELECT bh_name
, ST_GeomFromText('POINT(' || concat_ws(' ', easting, northing, ground_mod) || ')'
, 27700)
FROM bh_tmp;
Or, since you have values already (not text), you could use ST_MakePoint() and ST_SetSRID():
ST_SetSRID(ST_MakePoint(easting, northing, ground_mod), 27700)
Should be faster.
Npgsql parameterized query output incompatible with PostGIS
You're getting that error because the output of the CONCAT function is text, and your bh_geom column is geometry, so you're trying to insert text into geometry. This will work:
INSERT INTO bh(name, bh_geom) SELECT
bh_name,
ST_GeomFromText('POINT('
|| easting|| ' '
|| Northing
|| ' '
|| Ground_mOD
|| ')', 27700)
FROM bh_tmp;
I'm trying to update hstore key value with another table reference column. Syntax as simple as
SET misc = misc || ('domain' => temp.domain)
But I get error because everything in parenthesis should be quoted:
SET misc = misc || ('domain=>temp.domain')::hstore
But this actually inserts temp.domain as a string and not its value. How can I pass temp.domain value instead?
You can concatenate text with a subquery, and cast the result to type hstore.
create temp table temp (
temp_id integer primary key,
domain text
);
insert into temp values (1, 'wibble');
select ('domain => ' || (select domain from temp where temp_id = 1) )::hstore as key_value
from temp
key_value
hstore
--
"domain"=>"wibble"
Updates would work in a similar way.