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[SPARK-52152] Fix Catalog.databaseExists to handle multi catalogs #150

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[SPARK-52152] Fix Catalog.databaseExists to handle multi catalogs #150

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9 changes: 8 additions & 1 deletion Sources/SparkConnect/Catalog.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -197,7 +197,14 @@ public actor Catalog: Sendable {
/// - Parameter dbName: name of the database to check existence
/// - Returns: Indicating whether the database exists.
public func databaseExists(_ dbName: String) async throws -> Bool {
return try await self.listDatabases(pattern: dbName).count > 0
let df = getDataFrame({
var databaseExists = Spark_Connect_DatabaseExists()
databaseExists.dbName = dbName
var catalog = Spark_Connect_Catalog()
catalog.catType = .databaseExists(databaseExists)
return catalog
})
return try await df.collect().first![0] as! Bool
}

/// Creates a table from the given path and returns the corresponding ``DataFrame``.
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