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https://issues.apache.org/jira/browse/DRILL-5962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16254306#comment-16254306
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ASF GitHub Bot commented on DRILL-5962:
---------------------------------------
Github user brendanstennett commented on a diff in the pull request:
https://github.com/apache/drill/pull/1036#discussion_r151267136
--- Diff:
contrib/gis/src/main/java/org/apache/drill/exec/expr/fn/impl/gis/STAsJson.java
---
@@ -0,0 +1,64 @@
+/*
+ * 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.
+ */
+
+/*
+ * Wrapper for ESRI ST_AsJson to convert geometry into REST Json.
+ * Emulates functionality from spatial-framework-for-hadoop.
+ */
+package org.apache.drill.exec.expr.fn.impl.gis;
+
+import javax.inject.Inject;
+
+import org.apache.drill.exec.expr.DrillSimpleFunc;
+import org.apache.drill.exec.expr.annotations.FunctionTemplate;
+import org.apache.drill.exec.expr.annotations.Output;
+import org.apache.drill.exec.expr.annotations.Param;
+import org.apache.drill.exec.expr.holders.VarBinaryHolder;
+import org.apache.drill.exec.expr.holders.VarCharHolder;
+
+import io.netty.buffer.DrillBuf;
+
+@FunctionTemplate(name = "st_as_json", scope =
FunctionTemplate.FunctionScope.SIMPLE,
+ nulls = FunctionTemplate.NullHandling.NULL_IF_NULL)
+public class STAsJson implements DrillSimpleFunc {
--- End diff --
@ChrisSandison I would suggest naming this `ST_AsGeoJSON` to stay in line
with the conventions set forth in PostGIS.
http://www.postgis.net/docs/ST_AsGeoJSON.html
> Add function STAsJSON to extend GIS support
> -------------------------------------------
>
> Key: DRILL-5962
> URL: https://issues.apache.org/jira/browse/DRILL-5962
> Project: Apache Drill
> Issue Type: Bug
> Components: Functions - Drill
> Reporter: Chris Sandison
> Assignee: Chris Sandison
> Priority: Minor
> Original Estimate: 3h
> Remaining Estimate: 3h
>
> Add function as wrapper to ESRI's `asJson`
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