JSON_EXISTS

Returns true if the SQL/JSON path_expression applied to the context_item yields any items, false otherwise.

English manual coverage begins with PostgreSQL 7.1. Source history and runtime observations have their own recorded version boundaries.

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group: json
group label: JSON 函数和操作符
lang: en
layout: table-new
pages: functions-json.html
prose only: false

Definition PG 18

Returns true if the SQL/JSON path_expression applied to the context_item yields any items, false otherwise.

Signatures and overloads

JSON_EXISTS ( context_item, path_expression [PASSING { value AS varname } [, ...]] [{ TRUE | FALSE | UNKNOWN | ERROR } ON ERROR]) → boolean → boolean

Returns true if the SQL/JSON path_expression applied to the context_item yields any items, false otherwise.

Compare versions

Complete source facts

documentation revision

{"inputs":[{"file":"functions-json.html","kind":"same-version-reviewed-manual","locale":"en","sha256":"060b67147827d70ddcf5948833ddfbeada321366476016c8b8b7d68afda8045c","version":"18.7"},{"file":"functions-json.html","kind":"same-version-reviewed-manual","locale":"zh-Hans","sha256":"31b98fa7f00387abf441728c31918bfe8b368642bceeb8bba88a73c3fbd607de","version":"18.7"}],"release":"18.7","runtime_remeasured":false,"source_revision":"pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552"}

Source references

Original manual reference

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:02c6c712a910f0ee6c8d5f038f31439bb97a23f2727eabc5453bac8ec382bbac

Text language: en · wiki-repair-20261023:02c6c712a910f0ee6c8d5f038f31439bb97a23f2727eabc5453bac8ec382bbac