public final IndexContext index() throws RecognitionException {
		IndexContext _localctx = new IndexContext(_ctx, getState());
		enterRule(_localctx, 28, RULE_index);
		int _la;
		try {
			enterOuterAlt(_localctx, 1);
			{
			{
			setState(262);
			_la = _input.LA(1);
			if (((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & ((1L << (FULLTEXT - 64)) | (1L << (SPATIAL - 64)) | (1L << (UNIQUE - 64)))) != 0)) {
				{
				setState(261);
				_la = _input.LA(1);
				if ( !(((((_la - 64)) & ~0x3f) == 0 && ((1L << (_la - 64)) & ((1L << (FULLTEXT - 64)) | (1L << (SPATIAL - 64)) | (1L << (UNIQUE - 64)))) != 0)) ) {
				_errHandler.recoverInline(this);
				}
				consume();
				}
			}

			}
			setState(264); match(INDEX);
			setState(265); index_name();
			setState(267);
			_la = _input.LA(1);
			if (_la==USING) {
				{
				setState(266); index_type();
				}
			}

			setState(269); match(ON);
			setState(270); table_name();
			setState(271); parNameList();
			setState(273);
			_la = _input.LA(1);
			if (_la==KEY_BSIZE || _la==USING) {
				{
				setState(272); index_option();
				}
			}

			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}