Fossil

){
  char *zDef = db_text(0, "SELECT sql FROM %s.sqlite_master"
                   " WHERE name=='%s' /*scan*/",
                   db_name("localdb"), zTable);
  int rc = 0;
  if( zDef ){
    char *zPattern = mprintf("* %s *", zColumn);
    rc = sqlite3_strglob(zPattern, zDef)==0;
    fossil_free(zPattern);
    fossil_free(zDef);
  }
  return rc;
}

/*

                         " WHERE name=='vfile'", db_name("localdb"));
  if( zVFileDef==0 ) return 0;

  /* If the "isexe" column is missing from the vfile table, then
  ** add it now.   This code added on 2010-03-06.  After all users have
  ** upgraded, this code can be safely deleted.
  */
  if( !sqlite3_strglob("* isexe *", zVFileDef) ){
    db_multi_exec("ALTER TABLE vfile ADD COLUMN isexe BOOLEAN DEFAULT 0");
  }

  /* If "islink"/"isLink" columns are missing from tables, then
  ** add them now.   This code added on 2011-01-17 and 2011-08-27.
  ** After all users have upgraded, this code can be safely deleted.
  */
  if( !sqlite3_strglob("* islink *", zVFileDef) ){
    db_multi_exec("ALTER TABLE vfile ADD COLUMN islink BOOLEAN DEFAULT 0");
    if( db_local_table_exists_but_lacks_column("stashfile", "isLink") ){
      db_multi_exec("ALTER TABLE stashfile ADD COLUMN isLink BOOL DEFAULT 0");
    }
    if( db_local_table_exists_but_lacks_column("undo", "isLink") ){
      db_multi_exec("ALTER TABLE undo ADD COLUMN isLink BOOLEAN DEFAULT 0");
    }