Examples with Expression io.confluent.ksql.execution.expression.tree.Expression used on opensource projects

Example 21 with Expression

use of io.confluent.ksql.execution.expression.tree.Expression in project ksql by confluentinc.

the class LogicRewriterTest method assertNeg.

private void assertNeg(final String table, final String expressionStr, final String expectedStr) {
    Expression expression = getWhereExpression(table, expressionStr);
    Expression converted = LogicRewriter.rewriteNegations(expression);
    // When
    assertThat(converted.toString(), is(expectedStr));
}

Example 22 with Expression

use of io.confluent.ksql.execution.expression.tree.Expression in project ksql by confluentinc.

the class LogicRewriterTest method assertCNF.

private void assertCNF(final String table, final String expressionStr, final String expectedStr) {
    Expression expression = getWhereExpression(table, expressionStr);
    Expression converted = LogicRewriter.rewriteCNF(expression);
    // When
    assertThat(converted.toString(), is(expectedStr));
}

Example 23 with Expression

use of io.confluent.ksql.execution.expression.tree.Expression in project ksql by confluentinc.

the class QueryFilterNodeTest method shouldExtractKeyValueAndWindowBoundsFromExpressionWithEQWindowEnd.

@Test
public void shouldExtractKeyValueAndWindowBoundsFromExpressionWithEQWindowEnd() {
    // Given:
    final Expression keyExp = new ComparisonExpression(Type.EQUAL, new UnqualifiedColumnReferenceExp(ColumnName.of("K")), new IntegerLiteral(1));
    final Expression windowStart = new ComparisonExpression(Type.EQUAL, new UnqualifiedColumnReferenceExp(ColumnName.of("WINDOWEND")), new IntegerLiteral(2));
    final Expression expression = new LogicalBinaryExpression(LogicalBinaryExpression.Type.AND, keyExp, windowStart);
    QueryFilterNode filterNode = new QueryFilterNode(NODE_ID, source, expression, metaStore, ksqlConfig, true, plannerOptions);
    // When:
    final List<LookupConstraint> keys = filterNode.getLookupConstraints();
    // Then:
    assertThat(filterNode.isWindowed(), is(true));
    assertThat(keys.size(), is(1));
    final KeyConstraint keyConstraint = (KeyConstraint) keys.get(0);
    assertThat(keyConstraint.getKey(), is(GenericKey.genericKey(1)));
    assertThat(keyConstraint.getWindowBounds(), is(Optional.of(new WindowBounds(new WindowRange(), new WindowRange(Range.singleton(Instant.ofEpochMilli(2)), null, null)))));
}

Example 24 with Expression

use of io.confluent.ksql.execution.expression.tree.Expression in project ksql by confluentinc.

the class QueryFilterNodeTest method shouldThrowIfNonConvertibleType.

@Test
public void shouldThrowIfNonConvertibleType() {
    // Given:
    final Expression expression = new ComparisonExpression(Type.EQUAL, new UnqualifiedColumnReferenceExp(ColumnName.of("K")), new StringLiteral("foo"));
    // When:
    final KsqlException e = assertThrows(KsqlException.class, () -> new QueryFilterNode(NODE_ID, source, expression, metaStore, ksqlConfig, false, plannerOptions));
    // Then:
    assertThat(e.getMessage(), containsString("'foo' can not be converted to the type of the key column: K INTEGER KEY"));
}

Example 25 with Expression

use of io.confluent.ksql.execution.expression.tree.Expression in project ksql by confluentinc.

the class QueryFilterNodeTest method shouldExtractKeyValueFromExpressionEquals_multipleDisjuncts.

@Test
public void shouldExtractKeyValueFromExpressionEquals_multipleDisjuncts() {
    // Given:
    final Expression keyExp1 = new ComparisonExpression(Type.EQUAL, new UnqualifiedColumnReferenceExp(ColumnName.of("K")), new IntegerLiteral(1));
    final Expression keyExp2 = new ComparisonExpression(Type.EQUAL, new UnqualifiedColumnReferenceExp(ColumnName.of("K")), new IntegerLiteral(2));
    final Expression expression = new LogicalBinaryExpression(LogicalBinaryExpression.Type.OR, keyExp1, keyExp2);
    QueryFilterNode filterNode = new QueryFilterNode(NODE_ID, source, expression, metaStore, ksqlConfig, false, plannerOptions);
    // When:
    final List<LookupConstraint> keys = filterNode.getLookupConstraints();
    // Then:
    assertThat(filterNode.isWindowed(), is(false));
    assertThat(keys.size(), is(2));
    final KeyConstraint keyConstraint1 = (KeyConstraint) keys.get(0);
    assertThat(keyConstraint1.getKey(), is(GenericKey.genericKey(1)));
    assertThat(keyConstraint1.getWindowBounds(), is(Optional.empty()));
    final KeyConstraint keyConstraint2 = (KeyConstraint) keys.get(1);
    assertThat(keyConstraint2.getKey(), is(GenericKey.genericKey(2)));
    assertThat(keyConstraint2.getWindowBounds(), is(Optional.empty()));
}