diff --git a/package.json b/package.json
index 6026ec05..2c0573fe 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "pg": "^7.6.1",
     "pg-connection-string": "^2.0.0",
     "pretty-hrtime": "^1.0.3",
-    "roarr": "^2.11.7",
+    "roarr": "^2.11.8",
     "serialize-error": "^3.0.0",
     "ulid": "^2.3.0"
   },
diff --git a/src/connectionMethods/any.js b/src/connectionMethods/any.js
index afdf96be..41bcde41 100644
--- a/src/connectionMethods/any.js
+++ b/src/connectionMethods/any.js
@@ -1,7 +1,7 @@
 // @flow
 
 import {
-  createUlid
+  createQueryId
 } from '../utilities';
 import type {
   InternalQueryAnyFunctionType
@@ -11,7 +11,9 @@ import query from './query';
 /**
  * Makes a query and expects any number of results.
  */
-const any: InternalQueryAnyFunctionType = async (connection, clientConfiguration, rawSql, values, queryId = createUlid()) => {
+const any: InternalQueryAnyFunctionType = async (connection, clientConfiguration, rawSql, values, inheritedQueryId) => {
+  const queryId = inheritedQueryId || createQueryId();
+
   const {
     rows
   } = await query(connection, clientConfiguration, rawSql, values, queryId);
diff --git a/src/connectionMethods/anyFirst.js b/src/connectionMethods/anyFirst.js
index d436af8c..c1c40ef9 100644
--- a/src/connectionMethods/anyFirst.js
+++ b/src/connectionMethods/anyFirst.js
@@ -1,7 +1,7 @@
 // @flow
 
 import {
-  createUlid
+  createQueryId
 } from '../utilities';
 import {
   DataIntegrityError
@@ -12,7 +12,9 @@ import type {
 import log from '../Logger';
 import any from './any';
 
-const anyFirst: InternalQueryAnyFirstFunctionType = async (connection, clientConfigurationType, rawSql, values, queryId = createUlid()) => {
+const anyFirst: InternalQueryAnyFirstFunctionType = async (connection, clientConfigurationType, rawSql, values, inheritedQueryId) => {
+  const queryId = inheritedQueryId || createQueryId();
+
   const rows = await any(connection, clientConfigurationType, rawSql, values, queryId);
 
   if (rows.length === 0) {
diff --git a/src/connectionMethods/many.js b/src/connectionMethods/many.js
index 131f83c3..00d86d0b 100644
--- a/src/connectionMethods/many.js
+++ b/src/connectionMethods/many.js
@@ -1,7 +1,7 @@
 // @flow
 
 import {
-  createUlid
+  createQueryId
 } from '../utilities';
 import {
   NotFoundError
@@ -17,7 +17,9 @@ import query from './query';
  *
  * @throws NotFoundError If query returns no rows.
  */
-const many: InternalQueryManyFunctionType = async (connection, clientConfiguration, rawSql, values, queryId = createUlid()) => {
+const many: InternalQueryManyFunctionType = async (connection, clientConfiguration, rawSql, values, inheritedQueryId) => {
+  const queryId = inheritedQueryId || createQueryId();
+
   const {
     rows
   } = await query(connection, clientConfiguration, rawSql, values, queryId);
diff --git a/src/connectionMethods/manyFirst.js b/src/connectionMethods/manyFirst.js
index 6faf34ae..7335fbc3 100644
--- a/src/connectionMethods/manyFirst.js
+++ b/src/connectionMethods/manyFirst.js
@@ -1,7 +1,7 @@
 // @flow
 
 import {
-  createUlid
+  createQueryId
 } from '../utilities';
 import {
   DataIntegrityError
@@ -12,7 +12,9 @@ import type {
 import log from '../Logger';
 import many from './many';
 
-const manyFirst: InternalQueryManyFirstFunctionType = async (connection, clientConfigurationType, rawSql, values, queryId = createUlid()) => {
+const manyFirst: InternalQueryManyFirstFunctionType = async (connection, clientConfigurationType, rawSql, values, inheritedQueryId) => {
+  const queryId = inheritedQueryId || createQueryId();
+
   const rows = await many(connection, clientConfigurationType, rawSql, values, queryId);
 
   if (rows.length === 0) {
diff --git a/src/connectionMethods/maybeOne.js b/src/connectionMethods/maybeOne.js
index d8f86dbd..d28d6b0d 100644
--- a/src/connectionMethods/maybeOne.js
+++ b/src/connectionMethods/maybeOne.js
@@ -1,7 +1,7 @@
 // @flow
 
 import {
-  createUlid
+  createQueryId
 } from '../utilities';
 import {
   DataIntegrityError
@@ -17,7 +17,9 @@ import query from './query';
  *
  * @throws DataIntegrityError If query returns multiple rows.
  */
-const maybeOne: InternalQueryMaybeOneFunctionType = async (connection, clientConfiguration, rawSql, values, queryId = createUlid()) => {
+const maybeOne: InternalQueryMaybeOneFunctionType = async (connection, clientConfiguration, rawSql, values, inheritedQueryId) => {
+  const queryId = inheritedQueryId || createQueryId();
+
   const {
     rows
   } = await query(connection, clientConfiguration, rawSql, values, queryId);
diff --git a/src/connectionMethods/maybeOneFirst.js b/src/connectionMethods/maybeOneFirst.js
index 8f38d36e..903da89c 100644
--- a/src/connectionMethods/maybeOneFirst.js
+++ b/src/connectionMethods/maybeOneFirst.js
@@ -1,7 +1,7 @@
 // @flow
 
 import {
-  createUlid
+  createQueryId
 } from '../utilities';
 import {
   DataIntegrityError
@@ -18,7 +18,9 @@ import maybeOne from './maybeOne';
  *
  * @throws DataIntegrityError If query returns multiple rows.
  */
-const maybeOneFirst: InternalQueryMaybeOneFirstFunctionType = async (connection, clientConfiguration, rawSql, values, queryId = createUlid()) => {
+const maybeOneFirst: InternalQueryMaybeOneFirstFunctionType = async (connection, clientConfiguration, rawSql, values, inheritedQueryId) => {
+  const queryId = inheritedQueryId || createQueryId();
+
   const row = await maybeOne(connection, clientConfiguration, rawSql, values, queryId);
 
   if (!row) {
diff --git a/src/connectionMethods/one.js b/src/connectionMethods/one.js
index b762f1b9..f016913f 100644
--- a/src/connectionMethods/one.js
+++ b/src/connectionMethods/one.js
@@ -8,7 +8,7 @@ import {
   NotFoundError
 } from '../errors';
 import {
-  createUlid
+  createQueryId
 } from '../utilities';
 import log from '../Logger';
 import query from './query';
@@ -19,7 +19,9 @@ import query from './query';
  * @throws NotFoundError If query returns no rows.
  * @throws DataIntegrityError If query returns multiple rows.
  */
-const one: InternalQueryOneFunctionType = async (connection, clientConfiguration, rawSql, values, queryId = createUlid()) => {
+const one: InternalQueryOneFunctionType = async (connection, clientConfiguration, rawSql, values, inheritedQueryId) => {
+  const queryId = inheritedQueryId || createQueryId();
+
   const {
     rows
   } = await query(connection, clientConfiguration, rawSql, values, queryId);
diff --git a/src/connectionMethods/oneFirst.js b/src/connectionMethods/oneFirst.js
index 876fb0ba..df49ff91 100644
--- a/src/connectionMethods/oneFirst.js
+++ b/src/connectionMethods/oneFirst.js
@@ -1,7 +1,7 @@
 // @flow
 
 import {
-  createUlid
+  createQueryId
 } from '../utilities';
 import {
   DataIntegrityError
@@ -19,7 +19,9 @@ import one from './one';
  * @throws NotFoundError If query returns no rows.
  * @throws DataIntegrityError If query returns multiple rows.
  */
-const oneFirst: InternalQueryOneFirstFunctionType = async (connection, clientConfiguration, rawSql, values, queryId = createUlid()) => {
+const oneFirst: InternalQueryOneFirstFunctionType = async (connection, clientConfiguration, rawSql, values, inheritedQueryId) => {
+  const queryId = inheritedQueryId || createQueryId();
+
   const row = await one(connection, clientConfiguration, rawSql, values, queryId);
 
   const keys = Object.keys(row);
diff --git a/src/connectionMethods/query.js b/src/connectionMethods/query.js
index b024ef54..03739609 100644
--- a/src/connectionMethods/query.js
+++ b/src/connectionMethods/query.js
@@ -6,7 +6,7 @@ import {
   getStackTrace
 } from 'get-stack-trace';
 import {
-  createUlid,
+  createQueryId,
   normalizeAnonymousValuePlaceholders,
   normalizeNamedValuePlaceholders,
   stripComments
@@ -27,7 +27,9 @@ import type {
 } from '../types';
 import log from '../Logger';
 
-const query: InternalQueryFunctionType<*> = async (connection, clientConfiguration, rawSql, values, queryId = createUlid()) => {
+const query: InternalQueryFunctionType<*> = async (connection, clientConfiguration, rawSql, values, inheritedQueryId) => {
+  const queryId = inheritedQueryId || createQueryId();
+
   let stackTrace;
 
   if (SLONIK_LOG_STACK_TRACE) {
diff --git a/src/types.js b/src/types.js
index 73d6e24c..ec628ec4 100644
--- a/src/types.js
+++ b/src/types.js
@@ -2,6 +2,8 @@
 
 /* eslint-disable no-use-before-define, import/exports-last */
 
+export opaque type QueryIdType = string;
+
 type FieldType = {
   +columnID: number,
   +dataTypeID: number,
@@ -116,7 +118,7 @@ export type InternalQueryAnyFunctionType = (
   clientConfiguration: ClientConfigurationType,
   sql: string,
   values?: DatabaseQueryValuesType,
-  queryId?: string
+  queryId?: QueryIdType
 ) => Promise<$ReadOnlyArray<QueryResultRowType>>;
 
 export type InternalQueryAnyFirstFunctionType = (
@@ -124,7 +126,7 @@ export type InternalQueryAnyFirstFunctionType = (
   clientConfiguration: ClientConfigurationType,
   sql: string,
   values?: DatabaseQueryValuesType,
-  queryId?: string
+  queryId?: QueryIdType
 ) => Promise<$ReadOnlyArray<QueryResultRowColumnType>>;
 
 export type InternalQueryManyFunctionType = (
@@ -132,7 +134,7 @@ export type InternalQueryManyFunctionType = (
   clientConfiguration: ClientConfigurationType,
   sql: string,
   values?: DatabaseQueryValuesType,
-  queryId?: string
+  queryId?: QueryIdType
 ) => Promise<$ReadOnlyArray<QueryResultRowType>>;
 
 export type InternalQueryManyFirstFunctionType = (
@@ -140,7 +142,7 @@ export type InternalQueryManyFirstFunctionType = (
   clientConfiguration: ClientConfigurationType,
   sql: string,
   values?: DatabaseQueryValuesType,
-  queryId?: string
+  queryId?: QueryIdType
 ) => Promise<$ReadOnlyArray<QueryResultRowColumnType>>;
 
 export type InternalQueryMaybeOneFirstFunctionType = (
@@ -148,7 +150,7 @@ export type InternalQueryMaybeOneFirstFunctionType = (
   clientConfiguration: ClientConfigurationType,
   sql: string,
   values?: DatabaseQueryValuesType,
-  queryId?: string
+  queryId?: QueryIdType
 ) => Promise<QueryResultRowColumnType | null>;
 
 export type InternalQueryMaybeOneFunctionType = (
@@ -156,7 +158,7 @@ export type InternalQueryMaybeOneFunctionType = (
   clientConfiguration: ClientConfigurationType,
   sql: string,
   values?: DatabaseQueryValuesType,
-  queryId?: string
+  queryId?: QueryIdType
 ) => Promise<QueryResultRowType | null>;
 
 export type InternalQueryOneFirstFunctionType = (
@@ -164,7 +166,7 @@ export type InternalQueryOneFirstFunctionType = (
   clientConfiguration: ClientConfigurationType,
   sql: string,
   values?: DatabaseQueryValuesType,
-  queryId?: string
+  queryId?: QueryIdType
 ) => Promise<QueryResultRowColumnType>;
 
 export type InternalQueryOneFunctionType = (
@@ -172,14 +174,14 @@ export type InternalQueryOneFunctionType = (
   clientConfiguration: ClientConfigurationType,
   sql: string,
   values?: DatabaseQueryValuesType,
-  queryId?: string
+  queryId?: QueryIdType
 ) => Promise<QueryResultRowType>;
 
 export type TransactionHandlerType = (connection: DatabaseConnectionType) => Promise<*>;
 
 export type InternalTransactionFunctionType = (connection: InternalDatabaseConnectionType, handler: TransactionHandlerType) => Promise<*>;
 
-export type InternalQueryFunctionType<T: QueryResultRowType> = (connection: InternalDatabaseConnectionType, clientConfiguration: ClientConfigurationType, sql: string, values?: DatabaseQueryValuesType, queryId?: string) => Promise<QueryResultType<T>>;
+export type InternalQueryFunctionType<T: QueryResultRowType> = (connection: InternalDatabaseConnectionType, clientConfiguration: ClientConfigurationType, sql: string, values?: DatabaseQueryValuesType, queryId?: QueryIdType) => Promise<QueryResultType<T>>;
 
 export type QueryAnyFirstFunctionType<T: QueryResultRowColumnType> = (sql: string | TaggledTemplateLiteralInvocationType, values?: DatabaseQueryValuesType) => Promise<$ReadOnlyArray<T>>;
 export type QueryAnyFunctionType<T: QueryResultRowType> = (sql: string | TaggledTemplateLiteralInvocationType, values?: DatabaseQueryValuesType) => Promise<$ReadOnlyArray<T>>;
diff --git a/src/utilities/createUlid.js b/src/utilities/createQueryId.js
similarity index 58%
rename from src/utilities/createUlid.js
rename to src/utilities/createQueryId.js
index afaf1a62..4ba9aaac 100644
--- a/src/utilities/createUlid.js
+++ b/src/utilities/createQueryId.js
@@ -4,7 +4,10 @@ import {
   factory as ulidFactory,
   detectPrng
 } from 'ulid';
+import type {
+  QueryIdType
+} from '../types';
 
-export default (): string => {
+export default (): QueryIdType => {
   return ulidFactory(detectPrng(true));
 };
diff --git a/src/utilities/index.js b/src/utilities/index.js
index 73dc51e5..24a31971 100644
--- a/src/utilities/index.js
+++ b/src/utilities/index.js
@@ -1,6 +1,6 @@
 // @flow
 
-export {default as createUlid} from './createUlid';
+export {default as createQueryId} from './createQueryId';
 export {default as escapeIdentifier} from './escapeIdentifier';
 export {default as mapTaggedTemplateLiteralInvocation} from './mapTaggedTemplateLiteralInvocation';
 export {default as normalizeAnonymousValuePlaceholders} from './normalizeAnonymousValuePlaceholders';