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Regina Obe
2026-01-02 10:36:21 -05:00
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--- JSON examples --
DROP TABLE IF EXISTS persons;
CREATE TABLE persons (id serial PRIMARY KEY, person json);
INSERT INTO persons (person)
VALUES (
'{
"name":"Sonia",
"spouse":
{
"name":"Alex",
"parents":
{
"father":"Rafael",
"mother":"Ofelia"
},
"phones":
[
{
"type":"work",
"number":"619-722-6719"
},
{
"type":"cell",
"number":"619-852-5083"
}
]
},
"children":
[
{
"name":"Brandon",
"gender":"M"
},
{
"name":"Azaleah",
"girl":true,
"phones": []
}
]
}'
);
SELECT person->'name' FROM persons;
SELECT person->'spouse'->'parents'->'father' FROM persons;
SELECT person#>array['spouse','parents','father'] FROM persons;
SELECT person->'children'->0->'name' FROM persons;
SELECT person#>array['children','0','name'] FROM persons;
SELECT person->'spouse'->'parents'->>'father' FROM persons;
SELECT person#>>array['children','0','name'] FROM persons;
SELECT json_array_elements(person->'children')->>'name' FROM persons;
CREATE TABLE persons (id serial PRIMARY KEY, person json);
INSERT INTO persons_b (person)
VALUES (
'{
"name":"Sonia",
"spouse":
{
"name":"Alex",
"parents":
{
"father":"Rafael",
"mother":"Ofelia"
},
"phones":
[
{
"type":"work",
"number":"619-722-6719"
},
{
"type":"cell",
"number":"619-852-5083"
}
]
},
"children":
[
{
"name":"Brandon",
"gender":"M"
},
{
"name":"Azaleah",
"girl":true,
"phones": []
}
]
}'
);
-- FULL text examples
--first load the film table
ALTER TABLE film ADD COLUMN fts tsvector;
UPDATE film SET fts = setweight( to_tsvector(COALESCE(title,'')), 'A') ||
setweight( to_tsvector(COALESCE(description,'')), 'B');