[ https://issues.apache.org/jira/browse/HAWQ-927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15386147#comment-15386147 ]
ASF GitHub Bot commented on HAWQ-927: ------------------------------------- Github user kavinderd commented on a diff in the pull request: https://github.com/apache/incubator-hawq/pull/796#discussion_r71558813 --- Diff: src/backend/access/external/fileam.c --- @@ -454,6 +454,21 @@ external_stopscan(FileScanDesc scan) } } +/* ---------------- + * external_getnext_init - prepare ExternalSelectDesc struct before external_getnext +/* ---------------- + */ + +ExternalSelectDesc +external_getnext_init(PlanState *state) { + ExternalSelectDesc desc = (ExternalSelectDesc) palloc0(sizeof(ExternalSelectDescData)); --- End diff -- I missed adding `pfree` for `desc`. I added it to the end of `ExternalNext()` > Send Projection Info Data from HAWQ to PXF > ------------------------------------------ > > Key: HAWQ-927 > URL: https://issues.apache.org/jira/browse/HAWQ-927 > Project: Apache HAWQ > Issue Type: Sub-task > Components: External Tables, PXF > Reporter: Kavinder Dhaliwal > Assignee: Kavinder Dhaliwal > Fix For: backlog > > > To achieve column projection at the level of PXF or the underlying readers we > need to first send this data as a Header/Param to PXF. Currently, PXF has no > knowledge whether a query requires all columns or a subset of columns. -- This message was sent by Atlassian JIRA (v6.3.4#6332)