sqlFnSubstring       FuncName = "SUBSTRING"
	sqlFnTrim            FuncName = "TRIM"
	sqlFnUpper           FuncName = "UPPER"
)

var (
	errUnimplementedCast = errors.New("This cast not yet implemented")
	errNonStringTrimArg  = errors.New("TRIM() received a non-string argument")
	errNonTimestampArg   = errors.New("Expected a timestamp argument")
)

func (e *FuncExpr) getFunctionName() FuncName {
	switch {

	// and the operator can investigate.
	//
	// This is also important to avoid ipset sync issues if we add the pod ip to the ipset, but
	// enrolling fails because ztunnel (or the pod netns, or whatever) isn't ready yet,
	// and the pod is rescheduled with a new IP. In that case we don't get
	// a removal event, and so would never clean up the old IP that we eagerly-added.
	//
	// TODO one place this *can* fail is

	// FIXME: Ideally, we also need to check if there are any global IAM
	// policies and any (LDAP user created) service accounts on the other
	// peer clusters, and if so, reject the cluster replicate add request.
	// This is not yet implemented.

	// VALIDATIONS COMPLETE.

	// Create a common service account for all clusters, with root
	// permissions.

	// Create a local service account.

// https://cs.opensource.google/go/x/crypto/+/refs/tags/v0.22.0:ssh/common.go;l=44
var supportedKexAlgos = []string{
	kexAlgoCurve25519SHA256, kexAlgoCurve25519SHA256LibSSH,
	// P384 and P521 are not constant-time yet, but since we don't
	// reuse ephemeral keys, using them for ECDH should be OK.
	kexAlgoECDH256, kexAlgoECDH384, kexAlgoECDH521,
	kexAlgoDH14SHA256, kexAlgoDH16SHA512, kexAlgoDH14SHA1,
	kexAlgoDH1SHA1,
}

}

// newProgressMessage - creates new Progress Message. S3 periodically sends this message, if requested.
// It contains information about the progress of a query that has started but has not yet completed.
//
// Header specification:
// Progress messages contain three headers, as follows:
// https://docs.aws.amazon.com/AmazonS3/latest/API/images/s3select-frame-diagram-progress.png
//
// Payload specification:

  }

  // Test generators.  To let the GWT test suite generator access them, they need to be public named
  // classes with a public default constructor (not that we run these suites under GWT yet).

  @J2ktIncompatible
  @GwtIncompatible // used only from suite
  public static final class ImmutableDoubleArrayAsListGenerator extends TestDoubleListGenerator {
    @Override

   */
  final void init() {
    /*
     * requireNonNull is safe because this is called from the constructor after `futures` is set but
     * before releaseResources could be called (because we have not yet set up any of the listeners
     * that could call it, nor exposed this Future for users to call cancel() on).
     */
    requireNonNull(futures);

    // Corner case: List is empty.
    if (futures.isEmpty()) {

                result.addArtifact(rootArtifact);
            }
            return result;
        }

        // After the collection we will have the artifact object in the result but they will not be resolved yet.
        result = artifactCollector.collect(
                artifacts, rootArtifact, managedVersions, collectionRequest, source, collectionFilter, listeners, null);

   *
   * <p>Entries in the map can be in the following states:
   *
   * <p>Valid: - Live: valid key/value are set
   *
   * <p>Invalid: - Collected: key/value was partially collected, but not yet cleaned up
   */
  interface InternalEntry<K, V, E extends InternalEntry<K, V, E>> {
    /** Gets the next entry in the chain. */
    E getNext();

    /** Gets the entry's hash. */
    int getHash();

    // taskFuture guarantees completion if the callable is invoked, and adding to outputFuture
    // propagates cancellation if the callable has not yet been invoked.
    outputFuture.addListener(listener, directExecutor());
    taskFuture.addListener(listener, directExecutor());

    return outputFuture;
  }

  enum RunningState {
    NOT_RUN,