siddharthteotia commented on a change in pull request #6152:
URL: https://github.com/apache/incubator-pinot/pull/6152#discussion_r506986845
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File path:
pinot-common/src/main/java/org/apache/pinot/sql/parsers/CalciteSqlParser.java
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@@ -364,6 +367,42 @@ private static void queryRewrite(PinotQuery pinotQuery) {
validate(aliasMap, pinotQuery);
}
+ private static void applyOrdinals(PinotQuery pinotQuery) {
+ // handle GROUP BY clause
+ for (int i = 0; i < pinotQuery.getGroupByListSize(); i++) {
+ final Expression groupByExpr = pinotQuery.getGroupByList().get(i);
+ if (groupByExpr.isSetLiteral() &&
groupByExpr.getLiteral().isSetLongValue()) {
+ final int ordinal = (int) groupByExpr.getLiteral().getLongValue();
+ pinotQuery.getGroupByList().set(i,
getExpressionFromOrdinal(pinotQuery.getSelectList(), ordinal));
+ }
+ }
+
+ // handle ORDER BY clause
+ for (int i = 0; i < pinotQuery.getOrderByListSize(); i++) {
+ final Expression orderByExpr =
pinotQuery.getOrderByList().get(i).getFunctionCall().getOperands().get(0);
+ if (orderByExpr.isSetLiteral() &&
orderByExpr.getLiteral().isSetLongValue()) {
+ final int ordinal = (int) orderByExpr.getLiteral().getLongValue();
+ pinotQuery.getOrderByList().get(i).getFunctionCall()
+
.setOperands(Arrays.asList(getExpressionFromOrdinal(pinotQuery.getSelectList(),
ordinal)));
+ }
+ }
Review comment:
I am just trying to see how to fail fast (for some cases) out of these
query rewrite methods since most of them are iterating on select, group by or
order by expressions
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