Throw error on \0

Author: benjie

packages/pg/lib/client.js

@@ -444,7 +444,10 @@ class Client extends EventEmitter {
 
   // Ported from PostgreSQL 9.2.4 source code in src/interfaces/libpq/fe-exec.c
   escapeIdentifier(str) {
-    return '"' + str.replace(/["\0]/g, '""') + '"'
+    if (/\0/.test(str))  {
+      throw new Error("Identifier contains \\0 which is not allowed in PostgreSQL identifiers.")
+    }
+    return '"' + str.replace(/"/g, '""') + '"'
   }
 
   // Ported from PostgreSQL 9.2.4 source code in src/interfaces/libpq/fe-exec.c
@@ -460,7 +463,7 @@ class Client extends EventEmitter {
         escaped += c + c
         hasBackslash = true
       } else if (c === '\0') {
-        // Ignore it
+        throw new Error("Literal contains \\0 which is not allowed in PostgreSQL strings.");
       } else {
         escaped += c
       }