title: unicode string search
body: <p>I am using a Postgresql database. In my database there is one table <code>mumbaipropertydetails</code> in that one column zone has unicode data.</p>
  
  <p>When I execute the query: </p>
  
  <pre><code>select mumbaipropertydetails."zone" 
  from mumbaipropertydetails;
  </code></pre>
  
  <p>it gives output like this:</p>
  
  <pre><code>"\u092A\u093F\u0902\u092A\u0930\u0940 \u0935\u093E\u0918\u0947\u0930\u0947"
  "\u092A\u093F\u0902\u092A\u0930\u0940 \u0935\u093E\u0918\u0947\u0930\u0947"
  "\u092A\u093F\u0902\u092A\u0930\u0940 \u0935\u093E\u0918\u0947\u0930\u0947"
  "\u092A\u093F\u0902\u092A\u0930\u0940 \u0935\u093E\u0918\u0947\u0930\u0947"
  "\u092A\u093F\u0902\u092A\u0930\u0940 \u0935\u093E\u0918\u0947\u0930\u0947"
  "\u092A\u093F\u0902\u092A\u0930\u0940 \u0935\u093E\u0918\u0947\u0930\u0947"
  </code></pre>
  
  <p>When I'm trying to execute another query like:</p>
  
  <pre><code>select mumbaipropertydetails.taxno 
  from mumbaipropertydetails 
  where mumbaipropertydetails."zone"= "\u092A\u093F\u0902\u092A\u0930\u0940 
  \u0935\u093E\u0918\u0947\u0930\u0947";
  </code></pre>
  
  <p>it gives an error like this</p>
  
  <pre><code>NOTICE:  identifier 
  "\u092A\u093F\u0902\u092A\u0930\u0940\u0935\u093E\u0918\u0947\u0930\u0947" 
  will be truncated to
  "\u092A\u093F\u0902\u092A\u0930\u0940\u0935\u093E\u0918\u0947\u"
  
  ERROR:  column "\u092A\u093F\u0902\u092A\u0930\u0940 
  \u0935\u093E\u0918\u0947\u" does not exist
  LINE 1: ...opertydetails where mumbaipropertydetails."zone"= "\u092A\u0...
                                                           ^
  ********** Error **********
  
  ERROR: column "\u092A\u093F\u0902\u092A\u0930\u0940 
  \u0935\u093E\u0918\u0947\u" does not exist
  SQL state: 42703
  Character: 99
  </code></pre>