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https://issues.apache.org/jira/browse/BEAM-8993?focusedWorklogId=367846&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-367846
]
ASF GitHub Bot logged work on BEAM-8993:
----------------------------------------
Author: ASF GitHub Bot
Created on: 07/Jan/20 22:54
Start Date: 07/Jan/20 22:54
Worklog Time Spent: 10m
Work Description: TheNeuralBit commented on pull request #10417:
[BEAM-8993] [SQL] MongoDB predicate push down.
URL: https://github.com/apache/beam/pull/10417#discussion_r363956576
##########
File path:
sdks/java/extensions/sql/src/main/java/org/apache/beam/sdk/extensions/sql/meta/provider/mongodb/MongoDbFilter.java
##########
@@ -0,0 +1,139 @@
+/*
+ * 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.meta.provider.mongodb;
+
+import static
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.sql.SqlKind.AND;
+import static
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.sql.SqlKind.COMPARISON;
+import static
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.sql.SqlKind.OR;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+import org.apache.beam.sdk.extensions.sql.meta.BeamSqlTableFilter;
+import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexCall;
+import
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexInputRef;
+import
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexLiteral;
+import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexNode;
+import org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.sql.SqlKind;
+import
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.sql.type.SqlTypeName;
+
+public class MongoDbFilter implements BeamSqlTableFilter {
Review comment:
You might consider if you can make this an inner class of `MongoDbTable`,
since its only used in that class' `constructFilter` method. If that's too big
of a change, I think it should at least be package-private.
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Issue Time Tracking
-------------------
Worklog Id: (was: 367846)
Time Spent: 40m (was: 0.5h)
> [SQL] MongoDb should use predicate push-down
> --------------------------------------------
>
> Key: BEAM-8993
> URL: https://issues.apache.org/jira/browse/BEAM-8993
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql
> Reporter: Kirill Kozlov
> Assignee: Kirill Kozlov
> Priority: Major
> Time Spent: 40m
> Remaining Estimate: 0h
>
> * Add a MongoDbFilter class, implementing BeamSqlTableFilter.
> ** Support simple comparison operations.
> ** Support boolean field.
> ** Support nested conjunction/disjunction.
> * Update MongoDbTable#buildIOReader
> ** Construct a push-down filter from RexNodes.
> ** Set filter to FindQuery.
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