Github user sudheeshkatkam commented on a diff in the pull request:
https://github.com/apache/drill/pull/425#discussion_r63799606
--- Diff: exec/java-exec/src/main/codegen/data/Parser.tdd ---
@@ -36,7 +36,34 @@
"USE",
"FILES",
"REFRESH",
- "METADATA"
+ "METADATA",
+ "ANALYZE",
+ "COMPUTE",
+ "ESTIMATE",
+ "STATISTICS",
+ "COLUMNS",
+ "SAMPLE"
+ "PERCENT"
+ ]
+
+ # List of keywords from "keywords" section that are not reserved by
SQL:2003 standard.
+ # Example: "DATABASES", "TABLES" are keywords but are not reserved by
SQL:2003 standard.
+ # First keyword that starts the statement should be a reserved keyword,
otherwise the current parser
+ # ends up considering it as a expression and fails (TODO: need to follow
up with Calcite to find if it is a bug
+ # or by design.
+ nonReservedKeywords: [
+ "DATABASES",
+ "REPLACE",
+ "SCHEMAS",
+ "TABLES",
+ "FILES",
--- End diff --
Something like this came up before where a list of non reserved keyword
might result in some ambiguous queries. See
[DRILL-2116](https://issues.apache.org/jira/browse/DRILL-2116).
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