fx19880617 commented on a change in pull request #5671:
URL: https://github.com/apache/incubator-pinot/pull/5671#discussion_r452391596
##########
File path:
pinot-common/src/main/java/org/apache/pinot/sql/parsers/CalciteSqlParser.java
##########
@@ -196,13 +198,25 @@ private static boolean isAggregateExpression(Expression
expression) {
return false;
}
- public static Set<String> extractIdentifiers(List<Expression> expressions) {
+ /**
+ * Extract all the identifiers from given expressions.
+ *
+ * @param expressions
+ * @param excludeAs if true, ignores the right side identifier for AS
function.
+ * @return all the identifier names.
+ */
+ public static Set<String> extractIdentifiers(List<Expression> expressions,
boolean excludeAs) {
Review comment:
I see, if those args are single-quoted then it should be fine .
##########
File path:
pinot-common/src/main/java/org/apache/pinot/sql/parsers/CalciteSqlParser.java
##########
@@ -331,12 +345,59 @@ private static void queryRewrite(PinotQuery pinotQuery) {
pinotQuery.setFilterExpression(updatedFilterExpression);
}
+ // Rewrite GroupBy to Distinct
+ rewriteNonAggregationGroupByToDistinct(pinotQuery);
+
// Update alias
Map<Identifier, Expression> aliasMap =
extractAlias(pinotQuery.getSelectList());
applyAlias(aliasMap, pinotQuery);
validate(aliasMap, pinotQuery);
}
+ private static void rewriteNonAggregationGroupByToDistinct(PinotQuery
pinotQuery) {
Review comment:
will do
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