Github user vvysotskyi commented on a diff in the pull request:
https://github.com/apache/drill/pull/909#discussion_r134795741
--- Diff:
logical/src/main/java/org/apache/drill/common/expression/SchemaPath.java ---
@@ -115,6 +112,33 @@ public static SchemaPath create(NamePart namePart) {
}
/**
+ * Parses input string and returns {@code SchemaPath} instance.
+ *
+ * @param expr input string to be parsed
+ * @return {@code SchemaPath} instance
+ */
+ public static SchemaPath parseFromString(String expr) {
--- End diff --
It parses a string using the same rules which are used for the field in the
query. If a string contains dot outside backticks, or there are no backticks in
the string, will be created `SchemaPath` with the `NameSegment` which contains
one else `NameSegment`, etc. If a string contains [] then `ArraySegment` will
be created.
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