rename the func to __simpleQuery for now

Author: MahdiBM

Sources/PostgresNIO/Connection/PostgresConnection.swift

@@ -438,7 +438,9 @@ extension PostgresConnection {
         }
     }
 
-    /// Run a query on the Postgres server the connection is connected to.
+    /// Run a simple text-only query on the Postgres server the connection is connected to.
+    /// WARNING: This functions is not yet API and is incomplete.
+    /// The return type will change to another stream.
     ///
     /// - Parameters:
     ///   - query: The simple query to run
@@ -448,7 +450,7 @@ extension PostgresConnection {
     /// - Returns: A ``PostgresRowSequence`` containing the rows the server sent as the query result.
     ///            The sequence  be discarded.
     @discardableResult
-    public func simpleQuery(
+    public func __simpleQuery(
         _ query: String,
         logger: Logger,
         file: String = #fileID,

Tests/IntegrationTests/AsyncTests.swift

@@ -32,7 +32,7 @@ final class AsyncPostgresConnectionTests: XCTestCase {
 
         try await withTestConnection(on: eventLoop) { connection in
             for _ in 0..<1_000 {
-                let rows = try await connection.simpleQuery("SELECT version()", logger: .psqlTest)
+                let rows = try await connection.__simpleQuery("SELECT version()", logger: .psqlTest)
                 var iterator = rows.makeAsyncIterator()
                 let firstRow = try await iterator.next()
                 XCTAssertEqual(try firstRow?.decode(String.self, context: .default).contains("PostgreSQL"), true)
@@ -50,7 +50,7 @@ final class AsyncPostgresConnectionTests: XCTestCase {
         try await withTestConnection(on: eventLoop) { connection in
             for _ in 0..<1_000 {
                 let nonExistentOID = 1928394819
-                let rows = try await connection.simpleQuery("SELECT * FROM pg_class WHERE oid = \(nonExistentOID)", logger: .psqlTest)
+                let rows = try await connection.__simpleQuery("SELECT * FROM pg_class WHERE oid = \(nonExistentOID)", logger: .psqlTest)
                 var iterator = rows.makeAsyncIterator()
                 let first = try await iterator.next()
                 XCTAssertEqual(first, nil)