Using array_dims() : array_dims « Array « PostgreSQL

1. PostgreSQL
2. Array
3. array_dims

Using array_dims()

postgres=# CREATE TABLE book (id integer,titles text[]);
CREATE TABLE
postgres=#
postgres=# INSERT INTO book VALUES (102, '{"AAA\'s VVVV"}');
INSERT 0 1
postgres=# INSERT INTO book VALUES (103, '{"AAA", "VVVV"}');
INSERT 0 1
postgres=#
postgres=# -- Using array_dims(?)
postgres=# SELECT array_dims(titles) FROM book;
 array_dims
------------
 [1:1]
 [1:2]
(2 rows)

postgres=# drop table book;
DROP TABLE
postgres=#
           
       

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