hililiwei commented on code in PR #6617:
URL: https://github.com/apache/iceberg/pull/6617#discussion_r1083616314
##########
spark/v3.3/spark-extensions/src/main/antlr/org.apache.spark.sql.catalyst.parser.extensions/IcebergSqlExtensions.g4:
##########
@@ -168,34 +175,76 @@ fieldList
;
nonReserved
- : ADD | ALTER | AS | ASC | BY | CALL | DESC | DROP | FIELD | FIRST | LAST
| NULLS | ORDERED | PARTITION | TABLE | WRITE
- | DISTRIBUTED | LOCALLY | UNORDERED | REPLACE | WITH | IDENTIFIER_KW |
FIELDS | SET
+ : ADD | ALTER | AS | ASC | BRANCH | BY | CALL | CREATE | DAYS | DESC |
DROP | FIELD | FIRST | HOURS | LAST | NULLS | OF | ORDERED | PARTITION | TABLE
| WRITE
+ | DISTRIBUTED | LOCALLY | MINUTES | MONTHS | UNORDERED | REPLACE | RETAIN
| VERSION | WITH | IDENTIFIER_KW | FIELDS | SET | SNAPSHOT | SNAPSHOTS
| TRUE | FALSE
| MAP
;
+snapshotId
+ : number
+ ;
+
+numSnapshots
+ : number
+ ;
+
+snapshotRetain
+ : number
+ ;
+
+snapshotRefRetain
Review Comment:
@jackye1995 asked the same question.
I originally added snapshotRefRetain and snapshotRetain to make the
statement parsing code more readable. Removing it is technically feasible. In
the new version, I have removed (including create branch).
ref: https://github.com/apache/iceberg/pull/6637#discussion_r1083582974
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