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Copy pathtestAlias.java
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41 lines (33 loc) · 1.68 KB
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package hive;
/*
* Date: 13-8-12
*/
import gudusoft.gsqlparser.EDataType;
import gudusoft.gsqlparser.EDbVendor;
import gudusoft.gsqlparser.TGSqlParser;
import gudusoft.gsqlparser.nodes.TAliasClause;
import gudusoft.gsqlparser.nodes.TColumnDefinition;
import gudusoft.gsqlparser.nodes.hive.THiveTransformClause;
import gudusoft.gsqlparser.stmt.TSelectSqlStatement;
import junit.framework.TestCase;
public class testAlias extends TestCase {
public void test1(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvhive);
sqlparser.sqltext = "SELECT TRANSFORM(stuff) \n" +
" USING 'script'\n" +
" AS (thing1 INT, thing2 INT) from b;";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
THiveTransformClause transformClause = select.getTransformClause();
assertTrue(transformClause.getTransformType() == THiveTransformClause.ETransformType.ettSelect);
assertTrue(transformClause.getUsingString().toString().equalsIgnoreCase("'script'"));
TAliasClause aliasClause = transformClause.getAliasClause();
assertTrue(aliasClause.getColumnNameTypeList().size() == 2);
TColumnDefinition cd1 = aliasClause.getColumnNameTypeList().getColumn(0);
assertTrue(cd1.getColumnName().toString().equalsIgnoreCase("thing1"));
assertTrue(cd1.getDatatype().getDataType() == EDataType.int_t);
TColumnDefinition cd2 = aliasClause.getColumnNameTypeList().getColumn(1);
assertTrue(cd2.getColumnName().toString().equalsIgnoreCase("thing2"));
assertTrue(cd2.getDatatype().getDataType() == EDataType.int_t);
}
}