)

				for _, ref := range rel.References {
					if ref.OwnPrimaryKey {
						foreignFields = append(foreignFields, ref.PrimaryKey)
						relForeignKeys = append(relForeignKeys, ref.ForeignKey.DBName)
					} else if ref.PrimaryValue != "" {
						queryConds = append(queryConds, clause.Eq{
							Column: clause.Column{Table: rel.JoinTable.Table, Name: ref.ForeignKey.DBName},
							Value:  ref.PrimaryValue,

	lm.mu.Lock()
	defer lm.mu.Unlock()

	// Try to release lock.
	if isWriteLock {
		if lm.isWriteLock && lm.ref == 1 {
			lm.ref = 0
			lm.isWriteLock = false
			unlocked = true
		}
	} else {
		if !lm.isWriteLock {
			if lm.ref > 0 {
				lm.ref--
				unlocked = true
			}
		}
	}

	return unlocked
}

// ForceUnlock will forcefully clear a write or read lock.

var ErrAlreadyLocked = errors.New("file already locked")

// RLockedFile represents a read locked file, implements a special
// closer which only closes the associated *os.File when the ref count.
// has reached zero, i.e when all the readers have given up their locks.
type RLockedFile struct {
	*LockedFile
	mutex sync.Mutex
	refs  int // Holds read lock refs.
}

import (
	fipssha256 "crypto/sha256"
	"hash"
)

// New returns a new hash.Hash computing the SHA256 checksum.
// The SHA256 implementation is FIPS 140-2 compliant when the
// boringcrypto branch of Go is used.
// Ref: https://github.com/golang/go/tree/dev.boringcrypto
func New() hash.Hash { return fipssha256.New() }

// Sum256 returns the SHA256 checksum of the data.

	dstRec.KVS = kvs
	return dstRec, nil
}

// convertFromAnnotation - converts values based on the Parquet column's type
// annotations. LogicalType annotations if present override the deprecated
// ConvertedType annotations. Ref:
// https://github.com/apache/parquet-format/blob/master/LogicalTypes.md
func convertFromAnnotation(se *parquettypes.SchemaElement, v interface{}) (interface{}, error) {
	if se == nil {
		return v, nil
	}

						Namespace: resource.Namespace(deployment.GetNamespace()),
						Name:      resource.LocalName(deployment.GetName()),
					},
					ResourceVersion: resource.Version(deployment.GetResourceVersion()),
					Ref:             nil,
					FieldsMap:       nil,
				},
			}
			messages.Add(msg.NewUpdateIncompatibility(res,
				"ENHANCED_RESOURCE_SCOPING", "1.22",

			oRef, lRef, skipRef, snRef, psRef := decryptedRangeRef(test.decSizes, skipLen, readLen, false)
			if o != oRef || l != lRef || skip != skipRef || sn != snRef || ps != psRef {
				t.Errorf("Case %d: test failed: %d %d %d %d %d (Ref: %d %d %d %d %d)",
					i, o, l, skip, sn, ps, oRef, lRef, skipRef, snRef, psRef)
			}
		}

		// Read the last 6Mib+1 bytes of the (decrypted)
		// object
		//

			"Cat": {
				Relations: map[string]Relation{
					"Toy": {
						Name:        "Toy",
						Type:        schema.HasOne,
						Schema:      "User",
						FieldSchema: "Toy",
						Polymorphic: Polymorphic{ID: "ref_id", Type: "Type", Value: "users"},
						References: []Reference{
							{ForeignKey: "Type", ForeignSchema: "Toy", PrimaryValue: "users"},
						},
					},
				},
			},
		})
	})

func (s *ScanRange) Validate() error {
	if s == nil {
		return nil
	}
	if s.Start == nil && s.End == nil {
		// This parameter is optional, but when specified, it must not be empty.
		// Ref: https://docs.aws.amazon.com/AmazonS3/latest/API/API_SelectObjectContent.html#AmazonS3-SelectObjectContent-request-ScanRange
		return errors.New("ScanRange: No Start or End specified")
	}
	if s.Start == nil || s.End == nil {

}

// Unwrap returns the error wrapped in NetworkError.
func (n *NetworkError) Unwrap() error {
	return n.Err
}

// Client - http based RPC client.
type Client struct {
	connected int32 // ref: https://golang.org/pkg/sync/atomic/#pkg-note-BUG
	_         int32 // For 64 bits alignment
	lastConn  int64

	// HealthCheckFn is the function set to test for health.
	// If not set the client will not keep track of health.