use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptCluster in project calcite by apache.
the class RelFieldTrimmer method dummyProject.
/**
* Creates a project with a dummy column, to protect the parts of the system
* that cannot handle a relational expression with no columns.
*
* @param fieldCount Number of fields in the original relational expression
* @param input Trimmed input
* @return Dummy project, or null if no dummy is required
*/
protected TrimResult dummyProject(int fieldCount, RelNode input) {
final RelOptCluster cluster = input.getCluster();
final Mapping mapping = Mappings.create(MappingType.INVERSE_SURJECTION, fieldCount, 1);
if (input.getRowType().getFieldCount() == 1) {
// created for the child). We can't do better.
return result(input, mapping);
}
final RexLiteral expr = cluster.getRexBuilder().makeExactLiteral(BigDecimal.ZERO);
relBuilder.push(input);
relBuilder.project(ImmutableList.<RexNode>of(expr), ImmutableList.of("DUMMY"));
return result(relBuilder.build(), mapping);
}
use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptCluster in project calcite by apache.
the class CalcitePrepareImpl method perform.
/**
* Executes a prepare action.
*/
public <R> R perform(CalciteServerStatement statement, Frameworks.PrepareAction<R> action) {
final CalcitePrepare.Context prepareContext = statement.createPrepareContext();
final JavaTypeFactory typeFactory = prepareContext.getTypeFactory();
final CalciteSchema schema = action.getConfig().getDefaultSchema() != null ? CalciteSchema.from(action.getConfig().getDefaultSchema()) : prepareContext.getRootSchema();
CalciteCatalogReader catalogReader = new CalciteCatalogReader(schema.root(), schema.path(null), typeFactory, prepareContext.config());
final RexBuilder rexBuilder = new RexBuilder(typeFactory);
final RelOptPlanner planner = createPlanner(prepareContext, action.getConfig().getContext(), action.getConfig().getCostFactory());
final RelOptCluster cluster = createCluster(planner, rexBuilder);
return action.apply(cluster, catalogReader, prepareContext.getRootSchema().plus(), statement);
}
use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptCluster in project calcite by apache.
the class PlannerImpl method ready.
private void ready() {
switch(state) {
case STATE_0_CLOSED:
reset();
}
ensure(State.STATE_1_RESET);
Frameworks.withPlanner(new Frameworks.PlannerAction<Void>() {
public Void apply(RelOptCluster cluster, RelOptSchema relOptSchema, SchemaPlus rootSchema) {
// use our own defaultSchema
Util.discard(rootSchema);
typeFactory = (JavaTypeFactory) cluster.getTypeFactory();
planner = cluster.getPlanner();
planner.setExecutor(executor);
return null;
}
}, config);
state = State.STATE_2_READY;
// then, register the trait def specified in traitDefs.
if (this.traitDefs != null) {
planner.clearRelTraitDefs();
for (RelTraitDef def : this.traitDefs) {
planner.addRelTraitDef(def);
}
}
}
use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptCluster in project calcite by apache.
the class PlannerImpl method rel.
public RelRoot rel(SqlNode sql) throws RelConversionException {
ensure(State.STATE_4_VALIDATED);
assert validatedSqlNode != null;
final RexBuilder rexBuilder = createRexBuilder();
final RelOptCluster cluster = RelOptCluster.create(planner, rexBuilder);
final SqlToRelConverter.Config config = SqlToRelConverter.configBuilder().withConfig(sqlToRelConverterConfig).withTrimUnusedFields(false).withConvertTableAccess(false).build();
final SqlToRelConverter sqlToRelConverter = new SqlToRelConverter(new ViewExpanderImpl(), validator, createCatalogReader(), cluster, convertletTable, config);
root = sqlToRelConverter.convertQuery(validatedSqlNode, false, true);
root = root.withRel(sqlToRelConverter.flattenTypes(root.rel, true));
final RelBuilder relBuilder = config.getRelBuilderFactory().create(cluster, null);
root = root.withRel(RelDecorrelator.decorrelateQuery(root.rel, relBuilder));
state = State.STATE_5_CONVERTED;
return root;
}
use of org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.plan.RelOptCluster in project calcite by apache.
the class RelMetadataTest method testAllPredicates.
@Test
public void testAllPredicates() {
final Project rel = (Project) convertSql("select * from emp, dept");
final Join join = (Join) rel.getInput();
final RelOptTable empTable = join.getInput(0).getTable();
final RelOptTable deptTable = join.getInput(1).getTable();
Frameworks.withPlanner(new Frameworks.PlannerAction<Void>() {
public Void apply(RelOptCluster cluster, RelOptSchema relOptSchema, SchemaPlus rootSchema) {
checkAllPredicates(cluster, empTable, deptTable);
return null;
}
});
}
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