public void setAggregationExprsForClause(String clause, Map<String, ASTNode> aggregationTrees) {
    destToAggregationExprs.put(clause, aggregationTrees);
  }
Maping from table/subquery aliases to all the associated lateral view nodes.
ql/src/java/org/apache/hadoop/hive/ql/parse/QBParseInfo.java