ibzib commented on a change in pull request #13934: URL: https://github.com/apache/beam/pull/13934#discussion_r583280073
########## File path: sdks/java/extensions/sql/zetasql/src/main/java/org/apache/beam/sdk/extensions/sql/zetasql/BeamZetaSqlCatalog.java ########## @@ -0,0 +1,417 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.beam.sdk.extensions.sql.zetasql; + +import com.google.common.collect.ImmutableList; +import com.google.zetasql.Analyzer; +import com.google.zetasql.AnalyzerOptions; +import com.google.zetasql.Function; +import com.google.zetasql.FunctionArgumentType; +import com.google.zetasql.FunctionSignature; +import com.google.zetasql.SimpleCatalog; +import com.google.zetasql.TVFRelation; +import com.google.zetasql.TableValuedFunction; +import com.google.zetasql.TypeFactory; +import com.google.zetasql.ZetaSQLBuiltinFunctionOptions; +import com.google.zetasql.ZetaSQLFunctions; +import com.google.zetasql.ZetaSQLType; +import com.google.zetasql.resolvedast.ResolvedNode; +import com.google.zetasql.resolvedast.ResolvedNodes; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.Optional; +import java.util.stream.Collectors; +import org.apache.beam.sdk.extensions.sql.impl.JavaUdfLoader; +import org.apache.beam.sdk.extensions.sql.impl.SqlConversionException; +import org.apache.beam.sdk.extensions.sql.impl.utils.TVFStreamingUtils; +import org.apache.beam.sdk.extensions.sql.udf.ScalarFn; +import org.apache.beam.sdk.extensions.sql.zetasql.translation.UserFunctionDefinitions; +import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.adapter.java.JavaTypeFactory; +import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.type.RelDataType; +import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.type.RelDataTypeField; +import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.schema.SchemaPlus; +import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableMap; + +/** + * Catalog for registering tables and functions. Populates a {@link SimpleCatalog} based on a {@link + * SchemaPlus}. + */ +public class BeamZetaSqlCatalog { + // ZetaSQL function group identifiers. Different function groups may have divergent translation + // paths. + public static final String PRE_DEFINED_WINDOW_FUNCTIONS = "pre_defined_window_functions"; + public static final String USER_DEFINED_SQL_FUNCTIONS = "user_defined_functions"; + public static final String USER_DEFINED_JAVA_SCALAR_FUNCTIONS = + "user_defined_java_scalar_functions"; + /** + * Same as {@link Function}.ZETASQL_FUNCTION_GROUP_NAME. Identifies built-in ZetaSQL functions. + */ + public static final String ZETASQL_FUNCTION_GROUP_NAME = "ZetaSQL"; + + private static final ImmutableList<String> PRE_DEFINED_WINDOW_FUNCTION_DECLARATIONS = + ImmutableList.of( + // TODO: support optional function argument (for window_offset). + "CREATE FUNCTION TUMBLE(ts TIMESTAMP, window_size STRING) AS (1);", + "CREATE FUNCTION TUMBLE_START(window_size STRING) RETURNS TIMESTAMP AS (null);", + "CREATE FUNCTION TUMBLE_END(window_size STRING) RETURNS TIMESTAMP AS (null);", + "CREATE FUNCTION HOP(ts TIMESTAMP, emit_frequency STRING, window_size STRING) AS (1);", + "CREATE FUNCTION HOP_START(emit_frequency STRING, window_size STRING) " + + "RETURNS TIMESTAMP AS (null);", + "CREATE FUNCTION HOP_END(emit_frequency STRING, window_size STRING) " + + "RETURNS TIMESTAMP AS (null);", + "CREATE FUNCTION SESSION(ts TIMESTAMP, session_gap STRING) AS (1);", + "CREATE FUNCTION SESSION_START(session_gap STRING) RETURNS TIMESTAMP AS (null);", + "CREATE FUNCTION SESSION_END(session_gap STRING) RETURNS TIMESTAMP AS (null);"); + + /** The top-level Calcite schema, which may contain sub-schemas. */ + private final SchemaPlus calciteSchema; + /** + * The top-level ZetaSQL catalog, which may contain nested catalogs for qualified table and + * function references. + */ + private final SimpleCatalog zetaSqlCatalog; + + private final JavaTypeFactory typeFactory; + + private final JavaUdfLoader javaUdfLoader = new JavaUdfLoader(); + private final Map<List<String>, ResolvedNodes.ResolvedCreateFunctionStmt> sqlScalarUdfs = + new HashMap<>(); + /** User-defined table valued functions. */ + private final Map<List<String>, ResolvedNode> sqlUdtvfs = new HashMap<>(); + + private final Map<List<String>, UserFunctionDefinitions.JavaScalarFunction> javaScalarUdfs = + new HashMap<>(); + + private BeamZetaSqlCatalog( + SchemaPlus calciteSchema, SimpleCatalog zetaSqlCatalog, JavaTypeFactory typeFactory) { + this.calciteSchema = calciteSchema; + this.zetaSqlCatalog = zetaSqlCatalog; + this.typeFactory = typeFactory; + } + + /** Return catalog pre-populated with builtin functions. */ + static BeamZetaSqlCatalog create( + SchemaPlus topLevelSchema, Review comment: done ########## File path: sdks/java/extensions/sql/zetasql/src/main/java/org/apache/beam/sdk/extensions/sql/zetasql/ZetaSQLPlannerImpl.java ########## @@ -93,79 +78,28 @@ public RelRoot rel(String sql, QueryParameters params) { RelOptCluster cluster = RelOptCluster.create(planner, new RexBuilder(typeFactory)); - QueryTrait trait = new QueryTrait(); - SqlAnalyzer analyzer = - new SqlAnalyzer(trait, defaultSchemaPlus, (JavaTypeFactory) cluster.getTypeFactory()); - AnalyzerOptions options = SqlAnalyzer.getAnalyzerOptions(params, defaultTimezone); + BeamZetaSqlCatalog catalog = + BeamZetaSqlCatalog.create( + defaultSchemaPlus, + new SimpleCatalog(defaultSchemaPlus.getName()), Review comment: done (moved to `create` out of a possibly misguided aversion to doing anything in a constructor) ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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