|
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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