@Test
public void testValidateFails() throws SqlParseException {
Planner planner = getPlanner();
SqlNode parse = planner.parse("select * from \"emps\" where \"Xname\" like '%e%'");
assertThat(
parse.toString(), equalTo("SELECT *\n" + "FROM `emps`\n" + "WHERE `Xname` LIKE '%e%'"));
try {
SqlNode validate = planner.validate(parse);
fail("expected error, got " + validate);
} catch (ValidationException e) {
assertThat(Util.getStackTrace(e), containsString("Column 'Xname' not found in any table"));
// ok
}
}
@Test
public void testParseAndConvert() throws Exception {
Planner planner = getPlanner();
SqlNode parse = planner.parse("select * from \"emps\" where \"name\" like '%e%'");
assertThat(
parse.toString(), equalTo("SELECT *\n" + "FROM `emps`\n" + "WHERE `name` LIKE '%e%'"));
SqlNode validate = planner.validate(parse);
RelNode rel = planner.convert(validate);
assertThat(
toString(rel),
equalTo(
"ProjectRel(empid=[$0], deptno=[$1], name=[$2], salary=[$3], commission=[$4])\n"
+ " FilterRel(condition=[LIKE($2, '%e%')])\n"
+ " EnumerableTableAccessRel(table=[[hr, emps]])\n"));
}
/** Unit test that parses, validates, converts and plans. */
@Test
public void testPlan() throws Exception {
RuleSet ruleSet =
RuleSets.ofList(
MergeFilterRule.INSTANCE,
JavaRules.ENUMERABLE_FILTER_RULE,
JavaRules.ENUMERABLE_PROJECT_RULE);
Planner planner = getPlanner(ruleSet);
SqlNode parse = planner.parse("select * from \"emps\"");
SqlNode validate = planner.validate(parse);
RelNode convert = planner.convert(validate);
RelTraitSet traitSet = planner.getEmptyTraitSet().replace(EnumerableConvention.INSTANCE);
RelNode transform = planner.transform(0, traitSet, convert);
assertThat(
toString(transform),
equalTo(
"EnumerableProjectRel(empid=[$0], deptno=[$1], name=[$2], salary=[$3], commission=[$4])\n"
+ " EnumerableTableAccessRel(table=[[hr, emps]])\n"));
}