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package teradata;
/*
* Date: 13-2-8
*/
import gudusoft.gsqlparser.EDbVendor;
import gudusoft.gsqlparser.TGSqlParser;
import gudusoft.gsqlparser.nodes.TGroupBy;
import gudusoft.gsqlparser.nodes.TOrderBy;
import gudusoft.gsqlparser.nodes.TResultColumn;
import gudusoft.gsqlparser.stmt.TSelectSqlStatement;
import junit.framework.TestCase;
public class testGroupBy extends TestCase {
public void test1(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvteradata);
sqlparser.sqltext = "SELECT\n" +
"\tSECR_EXPSR_ID\n" +
"FROM\n" +
"\tENTR.SECR_EXPSR\n" +
"GROUP BY (1,2,3,4,5,6,7,8,9,10,11,12)\n" +
";\n" +
"";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TGroupBy groupBy = select.getGroupByClause();
assertTrue(groupBy.getItems().size() == 12);
assertTrue(groupBy.getItems().getGroupByItem(0).getExpr().toString().equalsIgnoreCase("1"));
assertTrue(groupBy.getItems().getGroupByItem(11).getExpr().toString().equalsIgnoreCase("12"));
}
public void testHavingAfterOrderBy(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvteradata);
sqlparser.sqltext = "SELECT\n" +
" ANA_Code\n" +
", Transaction_Date\n" +
", Transaction_Time\n" +
", Till_Number\n" +
", Transaction_Number\n" +
"FROM\n" +
" WT_EPOSAP_Basket_Sales_Final\n" +
"GROUP BY\n" +
" 1,2,3,4,5\n" +
"ORDER BY\n" +
" 1,2,3,4,5\n" +
"HAVING COUNT(*)>1";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TGroupBy groupBy = select.getGroupByClause();
assertTrue(groupBy.getHavingClause().toString().equalsIgnoreCase("COUNT(*)>1"));
assertTrue(groupBy.getItems().size() == 5);
assertTrue(groupBy.getItems().getGroupByItem(0).getExpr().toString().equalsIgnoreCase("1"));
TOrderBy orderBy = select.getOrderbyClause();
assertTrue(orderBy.getItems().size() == 5);
assertTrue(orderBy.getItems().getOrderByItem(1).getSortKey().toString().equalsIgnoreCase("2"));
}
public void testHavingOnly(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvteradata);
sqlparser.sqltext = "SELECT Count(*) \n" +
"FROM ( \n" +
" SELECT Count(DISTINCT location)(decimal(18,4)) AS rbp_cnt \n" +
" FROM vwv0rbp_reclass_bgt_pp_changes) AS rbp, \n" +
" ( \n" +
" SELECT count(DISTINCT location)(decimal(18,4)) AS locs_cnt \n" +
" FROM vwv0locs_location_snapshot) AS locs, \n" +
" ( \n" +
" SELECT min(reclassify_all_pct) AS reclassify_all_pct \n" +
" FROM vwv0rcm_reclass_ref \n" +
" WHERE reclassification_type_code = 'LOC') AS rcm \n" +
"WHERE ( \n" +
" rbp_cnt / locs_cnt * 100) < rcm.reclassify_all_pct \n" +
"HAVING count(*) > 0;";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TGroupBy groupBy = select.getGroupByClause();
assertTrue(groupBy.getHavingClause().toString().equalsIgnoreCase("count(*) > 0"));
}
}