@?(jsonb,jsonpath)
jsonpath exists
Reading PostgreSQL 18.6.
Description
jsonpath exists
- Left operand
- jsonb
- Right operand
- jsonpath
- Result type
- bool
- Implementing function
- jsonb_path_exists_opr(jsonb,jsonpath)
- Operator kind
- Binary
- Hash join candidate
- no
- Merge join candidate
- no
Usage
@?(jsonb,jsonpath) → boolEnglish manual definition
Does JSON path return any item for the specified JSON value? (This is useful only with SQL-standard JSON path expressions, not predicate check expressions , since those always return a value.)
'{"a":[1,2,3,4,5]}'::jsonb @? '$.a[*] ? (@ > 2)' → t
Catalog interpretation
The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information.
Declared operator-family membership
| Index AM | Family | Strategy | Purpose | Ordering family |
|---|---|---|---|---|
| GIN | jsonb_ops | 15 | search | |
| GIN | jsonb_path_ops | 15 | search |
Related entries
Documentation and source
- Matching PostgreSQL source archive
- PostgreSQL 18 English manual: catalog-pg-operator.html
- PostgreSQL 18 English manual: catalog-pg-amop.html
- PostgreSQL 18 English manual: functions-json.html
Source build
- Version
- 18.6
- Build
- https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2
- Source fingerprint
555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f
Compare versions
PostgreSQL 17 → 18: unchanged.
Compares recorded interfaces and attributes. Source fingerprints and build metadata are excluded; an absent sample is not proof of the introduction or removal release.
Related entries
Export JSON · Back to Operators · Recorded in PostgreSQL 12 through 20; the first sample is not necessarily its introduction.