Github user kavinderd commented on a diff in the pull request:
https://github.com/apache/incubator-hawq/pull/796#discussion_r71559534
--- Diff: src/backend/access/external/pxfheaders.c ---
@@ -158,6 +166,29 @@ static void add_tuple_desc_httpheader(CHURL_HEADERS
headers, Relation rel)
pfree(formatter.data);
}
+static void add_projection_desc_httpheader(CHURL_HEADERS headers,
ProjectionInfo *projInfo) {
+ int i;
+ char long_number[sizeof(int32) * 8];
+ int *varNumbers = projInfo->pi_varNumbers;
+ StringInfoData formatter;
+ initStringInfo(&formatter);
+
+ /* Convert the number of projection columns to a string */
+ pg_ltoa(list_length(projInfo->pi_targetlist), long_number);
+ churl_headers_append(headers, "X-GP-ATTRS-PROJ", long_number);
+
+ for(i = 0; i < list_length(projInfo->pi_targetlist); i++) {
--- End diff --
Yes it will be in another PR related to
[this](https://issues.apache.org/jira/browse/HAWQ-583?jql=project%20%3D%20HAWQ%20AND%20resolution%20%3D%20Unresolved%20AND%20assignee%20%3D%20kavinderd%20ORDER%20BY%20priority%20DESC)
Jira.
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