Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
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CREATE EXTENSION ltree;
create table my_table (
id SERIAL PRIMARY KEY,
name TEXT NOT NULL,
path ltree);
insert into my_table values
(1, 'один', '1'),
(2, 'два', '1.2'),
(3, 'три', '1.2.3'),
(4, 'четыре', '4');
select * from my_table where POSITION('.'::ltree in path) = 0;
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