[DRILL-6818] Add descriptions to secondary index options

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.15.0
• Fix Version/s: 1.15.0
• Labels: ready-to-commit
• Assignee: Aman Sinha
• Reporter: Arina Ielchiieva
• Reviewer: Bridget Bevens
• Created: 30/Oct/18 13:01
• Updated: 26/Nov/18 16:10
• Resolved: 26/Nov/18 16:10

Description

Add descriptions to secondary index options in ExecConstants and PlannerSettings:

============ index plan related options ==============
planner.use_simple_optimizer: false,
planner.enable_index_planning: true,
planner.enable_statistics: true,
planner.disable_full_table_scan: false,
planner.index.max_chosen_indexes_per_table: 5,
planner.index.force_sort_noncovering: false,
planner.index.use_hashjoin_noncovering: false,
planner.index.covering_selectivity_threshold: 1.0,
planner.index.noncovering_selectivity_threshold: 0.025,
planner.index.rowkeyjoin_cost_factor: 0.1,
planner.index.statistics_rowcount_scaling_factor: 0.1,
planner.index.prefer_intersect_plans: false,
planner.index.max_indexes_to_intersect: 5,
exec.query.rowkeyjoin_batchsize: 128,

Issue Links

• relates to: DRILL-6715 Update descriptions for System Options table
• links to: GitHub Pull Request #1545