ngaur9 commented on code in PR #608:
URL: https://github.com/apache/incubator-sedona/pull/608#discussion_r853574134
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sql/src/main/scala/org/apache/spark/sql/sedona_sql/expressions/Constructors.scala:
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@@ -94,6 +94,36 @@ case class ST_PolygonFromText(inputExpressions:
Seq[Expression])
}
}
+/**
+ * Return a line from a string. The string must be plain string and each
coordinate must be separated by a delimiter.
+ *
+ * @param inputExpressions
+ */
+case class ST_LineFromText(inputExpressions: Seq[Expression])
+ extends Expression with CodegenFallback with UserDataGeneratator {
+ // This is an expression which takes one input expressions.
+ assert(inputExpressions.length == 1)
+
+ override def nullable: Boolean = false
+
+ override def eval(inputRow: InternalRow): Any = {
+ val lineString =
inputExpressions(0).eval(inputRow).asInstanceOf[UTF8String].toString
+
+ var fileDataSplitter = FileDataSplitter.WKT
+ var formatMapper = new FormatMapper(fileDataSplitter, false,
GeometryType.LINESTRING)
Review Comment:
Added the Linestring filter to it. Please, let me know if anything else
needs to be done.
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