How Advanced Query Functions Work - Paradedb

In addition to basic match, phrase, and term queries, additional advanced query types are exposed as query builder functions.

Query builder functions use the @@@ operator. @@@ takes a column on the left-hand side and a query builder function on the right-hand side. It means "find all rows where the column matches the given query."

For example:

<CodeGroup> ```sql SQL SELECT description, rating, category FROM mock_items WHERE description @@@ pdb.regex('key.*rd'); ```

python

from paradedb import ParadeDB, Regex

MockItem.objects.filter(
    description=ParadeDB(Regex('key.*rd'))
).values('description', 'rating', 'category')

python

from sqlalchemy import select
from sqlalchemy.orm import Session
from paradedb.sqlalchemy import search

stmt = (
    select(MockItem.description, MockItem.rating, MockItem.category)
    .where(search.regex(MockItem.description, "key.*rd"))
)

with Session(engine) as session:
    session.execute(stmt).all()

ruby

MockItem.search(:description)
        .regex("key.*rd")
        .select(:description, :rating, :category)

</CodeGroup>

ini

       description        | rating |  category
--------------------------+--------+-------------
 Ergonomic metal keyboard |      4 | Electronics
 Plastic Keyboard         |      4 | Electronics
(2 rows)

This uses the regex builder function to match all rows where description matches the regex expression key.*rd.