lintingbin commented on code in PR #3426:
URL: https://github.com/apache/amoro/pull/3426#discussion_r1983006847
##########
amoro-format-iceberg/src/main/java/org/apache/amoro/utils/ExpressionUtil.java:
##########
@@ -79,4 +108,169 @@ public static Expression convertPartitionDataToDataFilter(
}
return filter;
}
+
+ /**
+ * Convert SQL filter to Iceberg {@link Expression}.
+ *
+ * @param sqlFilter the SQL filter
+ * @param tableColumns the list of table columns
+ * @return the Iceberg {@link Expression}
+ */
+ public static Expression convertSqlFilterToIcebergExpression(
+ String sqlFilter, List<Types.NestedField> tableColumns) {
+ if (sqlFilter == null) {
+ return Expressions.alwaysTrue();
+ }
+
+ try {
+ Select statement = (Select) CCJSqlParserUtil.parse("SELECT * FROM dummy
WHERE " + sqlFilter);
Review Comment:
"SELECT * FROM dummy" is just to enable the CCJSqlParserUtil.parse method to
perform normal SQL syntax parsing. If there is only a WHERE condition, the
syntax parsing cannot pass.
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