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From vdiravka <...@git.apache.org>
Subject [GitHub] drill pull request #549: DRILL-4682: Allow full schema identifier in SELECT ...
Date Fri, 22 Jul 2016 18:13:21 GMT
Github user vdiravka commented on a diff in the pull request:

    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/planner/sql/parser/DrillCompoundIdentifier.java
    @@ -69,31 +70,38 @@ public void addIndex(int index, SqlParserPos pos){
    -  public SqlNode getAsSqlNode(){
    -    if(ids.size() == 1){
    +  public SqlNode getAsSqlNode(Set<DrillCompoundIdentifier> fullSchemasSet) {
    --- End diff --
    Do you ask about clarification/github comment or code comment?
    Calcite parses the query with schema name in column name correctly. Then Drill reconverts
SqlNode for supporting complex types [DRILL-932](https://issues.apache.org/jira/browse/DRILL-932).

    But it was hardcoded: handled everything post two index as item operator (For column name
in select clause `cp.employee.json.employee_id` SqlNode was `cp.employee.json['department_id']`
instead of `cp.employee.json.department_id`).
    I added the case when full schema identifier is used in select clause to handle everything
post two index (except schema identifier) as item operator. I made it by comparing column
names identifiers with full schema identifiers from `from` and `join` clauses

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