Examples with LAST io.trino.sql.tree.SortItem.NullOrdering.LAST used on opensource projects

Example 1 with LAST

use of io.trino.sql.tree.SortItem.NullOrdering.LAST in project trino by trinodb.

the class TestLogicalPlanner method testOffset.

@Test
public void testOffset() {
    assertPlan("SELECT name FROM nation OFFSET 2 ROWS", any(strictProject(ImmutableMap.of("name", new ExpressionMatcher("name")), filter("row_num > BIGINT '2'", rowNumber(pattern -> pattern.partitionBy(ImmutableList.of()), any(tableScan("nation", ImmutableMap.of("name", "name")))).withAlias("row_num", new RowNumberSymbolMatcher())))));
    assertPlan("SELECT name FROM nation ORDER BY regionkey OFFSET 2 ROWS", any(strictProject(ImmutableMap.of("name", new ExpressionMatcher("name")), filter("row_num > BIGINT '2'", rowNumber(pattern -> pattern.partitionBy(ImmutableList.of()), anyTree(sort(ImmutableList.of(sort("regionkey", ASCENDING, LAST)), any(tableScan("nation", ImmutableMap.of("name", "name", "regionkey", "regionkey")))))).withAlias("row_num", new RowNumberSymbolMatcher())))));
    assertPlan("SELECT name FROM nation ORDER BY regionkey OFFSET 2 ROWS FETCH NEXT 5 ROWS ONLY", any(strictProject(ImmutableMap.of("name", new ExpressionMatcher("name")), filter("row_num > BIGINT '2'", rowNumber(pattern -> pattern.partitionBy(ImmutableList.of()), any(topN(7, ImmutableList.of(sort("regionkey", ASCENDING, LAST)), TopNNode.Step.FINAL, anyTree(tableScan("nation", ImmutableMap.of("name", "name", "regionkey", "regionkey")))))).withAlias("row_num", new RowNumberSymbolMatcher())))));
    assertPlan("SELECT name FROM nation OFFSET 2 ROWS FETCH NEXT 5 ROWS ONLY", any(strictProject(ImmutableMap.of("name", new ExpressionMatcher("name")), filter("row_num > BIGINT '2'", rowNumber(pattern -> pattern.partitionBy(ImmutableList.of()), limit(7, any(tableScan("nation", ImmutableMap.of("name", "name"))))).withAlias("row_num", new RowNumberSymbolMatcher())))));
}

Example 2 with LAST

use of io.trino.sql.tree.SortItem.NullOrdering.LAST in project trino by trinodb.

the class TestLogicalPlanner method testDoNotPlanUnreferencedRowPatternMeasures.

@Test
public void testDoNotPlanUnreferencedRowPatternMeasures() {
    // row pattern measure `label` is not referenced
    assertPlan("SELECT val OVER w " + "          FROM (VALUES (1, 90)) t(id, value) " + "          WINDOW w AS ( " + "                   ORDER BY id " + "                   MEASURES " + "                            RUNNING LAST(value) AS val, " + "                            CLASSIFIER() AS label " + "                   ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING " + "                   PATTERN (A+) " + "                   DEFINE A AS true " + "          )", output(project(patternRecognition(builder -> builder.specification(specification(ImmutableList.of(), ImmutableList.of("id"), ImmutableMap.of("id", ASC_NULLS_LAST))).addMeasure("val", "LAST(value)", INTEGER).rowsPerMatch(WINDOW).frame(windowFrame(ROWS, CURRENT_ROW, Optional.empty(), UNBOUNDED_FOLLOWING, Optional.empty(), Optional.empty())).pattern(new IrQuantified(new IrLabel("A"), oneOrMore(true))).addVariableDefinition(new IrLabel("A"), "true"), values(ImmutableList.of("id", "value"), ImmutableList.of(ImmutableList.of(new LongLiteral("1"), new LongLiteral("90"))))))));
    // row pattern measure `label` is not referenced
    assertPlan("SELECT min(value) OVER w " + "          FROM (VALUES (1, 90)) t(id, value) " + "          WINDOW w AS ( " + "                   ORDER BY id " + "                   MEASURES CLASSIFIER() AS label " + "                   ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING " + "                   PATTERN (A+) " + "                   DEFINE A AS true " + "          )", output(project(patternRecognition(builder -> builder.specification(specification(ImmutableList.of(), ImmutableList.of("id"), ImmutableMap.of("id", ASC_NULLS_LAST))).addFunction("min", functionCall("min", ImmutableList.of("value"))).rowsPerMatch(WINDOW).frame(windowFrame(ROWS, CURRENT_ROW, Optional.empty(), UNBOUNDED_FOLLOWING, Optional.empty(), Optional.empty())).pattern(new IrQuantified(new IrLabel("A"), oneOrMore(true))).addVariableDefinition(new IrLabel("A"), "true"), values(ImmutableList.of("id", "value"), ImmutableList.of(ImmutableList.of(new LongLiteral("1"), new LongLiteral("90"))))))));
}

Example 3 with LAST

use of io.trino.sql.tree.SortItem.NullOrdering.LAST in project trino by trinodb.

the class TestWindowClause method testWindowFunctionsInSelectAndOrderBy.

@Test
public void testWindowFunctionsInSelectAndOrderBy() {
    @Language("SQL") String sql = "SELECT array_agg(a) OVER (w ORDER BY a + 1), -a a FROM (VALUES 1, 2, 3) t(a) WINDOW w AS () ORDER BY max(a) OVER (w ORDER BY a + 1)";
    PlanMatchPattern pattern = anyTree(sort(ImmutableList.of(sort("max_result", ASCENDING, LAST)), any(window(windowMatcherBuilder -> windowMatcherBuilder.specification(specification(ImmutableList.of(), ImmutableList.of("order_by_window_sortkey"), ImmutableMap.of("order_by_window_sortkey", SortOrder.ASC_NULLS_LAST))).addFunction("max_result", functionCall("max", ImmutableList.of("minus_a"))), any(project(ImmutableMap.of("order_by_window_sortkey", expression("minus_a + 1")), project(ImmutableMap.of("minus_a", expression("-a")), window(windowMatcherBuilder -> windowMatcherBuilder.specification(specification(ImmutableList.of(), ImmutableList.of("select_window_sortkey"), ImmutableMap.of("select_window_sortkey", SortOrder.ASC_NULLS_LAST))).addFunction("array_agg_result", functionCall("array_agg", ImmutableList.of("a"))), anyTree(project(ImmutableMap.of("select_window_sortkey", expression("a + 1")), anyTree(values("a"))))))))))));
    assertPlan(sql, CREATED, pattern);
}

Example 4 with LAST

use of io.trino.sql.tree.SortItem.NullOrdering.LAST in project trino by trinodb.

the class TestWindowClause method testWindowWithFrameCoercions.

@Test
public void testWindowWithFrameCoercions() {
    @Language("SQL") String sql = "SELECT a old_a, 2e0 a FROM (VALUES -100, -99, -98) t(a) WINDOW w AS (ORDER BY a + 1) ORDER BY count(*) OVER (w RANGE BETWEEN CURRENT ROW AND a + 1e0 FOLLOWING)";
    PlanMatchPattern pattern = anyTree(sort(ImmutableList.of(sort("count_result", ASCENDING, LAST)), project(window(windowMatcherBuilder -> windowMatcherBuilder.specification(specification(ImmutableList.of(), ImmutableList.of("sortkey"), ImmutableMap.of("sortkey", SortOrder.ASC_NULLS_LAST))).addFunction("count_result", functionCall("count", ImmutableList.of()), createTestMetadataManager().resolveFunction(TEST_SESSION, QualifiedName.of("count"), fromTypes()), windowFrame(RANGE, CURRENT_ROW, Optional.empty(), Optional.empty(), FOLLOWING, Optional.of("frame_bound"), Optional.of("coerced_sortkey"))), project(ImmutableMap.of("frame_bound", expression(new FunctionCall(QualifiedName.of("$operator$add"), ImmutableList.of(new SymbolReference("coerced_sortkey"), new SymbolReference("frame_offset"))))), project(ImmutableMap.of("coerced_sortkey", expression("CAST(sortkey AS double)")), node(FilterNode.class, project(project(ImmutableMap.of(// sort key based on "a" in source scope
    "sortkey", expression("a + 1"), // frame offset based on "a" in output scope
    "frame_offset", expression("new_a + 1E0")), project(ImmutableMap.of("new_a", expression("2E0")), project(project(values("a")))))))))))));
    assertPlan(sql, CREATED, pattern);
}