title: Cannot change data type of SAP Hana column
body: <p>I try to change data type of column of Hana's table and get an error: "</p>
  
  <p><strong>feature not supported: cannot modify column type from bigint to integer</strong></p>
  
  <p>". Alter table statement: </p>
  
  <blockquote>
    <p>ALTER TABLE "SCHEMA_NAME"."TABLE_NAME" ALTER ("C_BIGINT" INTEGER );</p>
  </blockquote>
  
  <p>Table DDL:</p>
  
  <blockquote>
    <p>CREATE ROW TABLE "SCHEMA_NAME"."TABLE_NAME" ("C_BIGINT" BIGINT);</p>
  </blockquote>
  
  <p>Seems like I have all required grants but get error for any data type I'm trying to change to.</p>