az_exists: Check whether data exists at an Azure path
In quak: Query 'Azure Data Lake Storage Gen2' with 'DuckDB'

az_exists

R Documentation

Check whether data exists at an Azure path

Description

For an exact file or glob pattern, checks whether DuckDB's glob() returns at least one match. For a plain path, also probes ⁠url/**⁠ so dataset prefixes count as existing when they contain at least one object.

Usage

az_exists(conn, url)

Arguments

`conn`	A DuckDB connection.
`url`	Character scalar. Azure Blob URL or glob pattern.

Value

Logical scalar.

Examples

## Not run: 
# Requires a live Azure account, credentials, and network access.
conn <- az_conn()
az_exists(conn, "abfss://container@account/data/sales")

## End(Not run)

quak documentation built on June 9, 2026, 5:09 p.m.