[CALCITE-407] RemoveTrivialProjectRule drops child node's traits

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.1-incubating
• Assignee: Julian Hyde
• Reporter: Laljo John Pullokkaran
• Created: 12/Sep/14 22:59
• Updated: 18/Oct/14 22:36
• Resolved: 15/Sep/14 23:08

Description

While dropping project, rule drops child's traits and instead uses dropping project's trait.

For ex: Project-Sort
While dropping Project sort's trait is lost resulting in an assertion failure.

convert(
child,
project.getTraitSet())