Natural join output doesn't appear in table [closed]

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I used this query:

select *
into airbnb_parcels
from pcpao_res 
natural join AIRBNB_PARCELS;

and got:

Error: relation "airbnb_parcels" already exits.

In DBeaver I used the following query:

SELECT * FROM pcpao_res NATURAL JOIN airbnb_parcels;

But the resulting data only appears in the "output" window below the query panel, not the actual table. I've saved the project, committed the query, etc. but it won't update the table.

It's a large dataset so in the screenshots I opened up a filter on the same column in both the query window and the table window to show how values are present in the former but not the latter.

What am I doing wrong?

Answer 1

Let me suggest to read carefully the Postgres docs:

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SELECT INTO

SELECT INTO — define a new table from the results of a query

Description

SELECT INTO creates a new table and fills it with data computed by a query. The data is not returned to the client, as it is with a normal SELECT. The new table's columns have the names and data types associated with the output columns of the SELECT.

Notes

CREATE TABLE AS is functionally similar to SELECT INTO. CREATE TABLE AS is the recommended syntax, since this form of SELECT INTO is not available in ECPG or PL/pgSQL, because they interpret the INTO clause differently. Furthermore, CREATE TABLE AS offers a superset of the functionality provided by SELECT INTO.

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That is:

• SELECT INTO creates a new table, the new table must not exists previously.

• INSERT INTO requires an existent table.

Example:

CREATE TABLE t1 (id int, name text);
INSERT INTO t1 VALUES
(1, '1111'),(2, '2222'),(3, '3333');


-- Correct, t2 doesn't exists.

SELECT id, name INTO t2 FROM t1;


SELECT id, name FROM t2;

id | name
-: | :---
 1 | 1111
 2 | 2222
 3 | 3333

CREATE TABLE t3 (id int, name text);

-- Error, t3 already exists
SELECT id, name INTO t3 FROM t1;

ERROR: relation "t3" already exists

-- Error, t4 doesn't exists
INSERT INTO t4
SELECT id, name FROM t1;

ERROR: relation "t4" does not exist LINE 1: INSERT INTO t4 ^

-- Correct, t3 already exists
INSERT INTO t3
SELECT id, name FROM t1;

SELECT * FROM t3;

id | name
-: | :---
 1 | 1111
 2 | 2222
 3 | 3333

db<>fiddle here