fix(client): handle unexpected copyInResponse in non-query state

Simone Nigro · Simone Nigro · commit 7904fea9129c · 2026-02-05T09:32:15.000+01:00
diff --git a/packages/pg/lib/client.js b/packages/pg/lib/client.js
@@ -544,6 +544,9 @@ class Client extends EventEmitter {
       if (activeQuery) {
         const error = new Error('COPY operations are not supported in pipeline mode')
         activeQuery.handleError(error, this.connection)
+      } else {
+        const error = new Error('Received unexpected copyInResponse message from backend.')
+        this._handleErrorEvent(error)
       }
       return
     }

Original file line number	Diff line number	Diff line change
`@@ -544,6 +544,9 @@ class Client extends EventEmitter {`
`544`	`544`	`if (activeQuery) {`
`545`	`545`	`const error = new Error('COPY operations are not supported in pipeline mode')`
`546`	`546`	`activeQuery.handleError(error, this.connection)`
	`547`	`+ } else {`
	`548`	`+ const error = new Error('Received unexpected copyInResponse message from backend.')`
	`549`	`+ this._handleErrorEvent(error)`
`547`	`550`	`}`
`548`	`551`	`return`
`549`	`552`	`}`