[DRILL-7073] CREATE SCHEMA command / TupleSchema / ColumnMetadata improvements

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.16.0
• Labels: ready-to-commit
• Assignee: Arina Ielchiieva
• Reporter: Arina Ielchiieva
• Reviewer: Paul Rogers
• Created: 03/Mar/19 13:11
• Updated: 11/Mar/19 11:16
• Resolved: 11/Mar/19 11:16

Description

CREATE SCHEMA command improvements:
1. add format
2. add default
3. add column properties

TupleSchema / ColumnMetadata improvements:
1. add properties map;
2. add format;
3. add default from string literal;
4. add ser / de methods.

Example:

create schema 
(col date not null format 'yyyy-MM-dd' default '2018-12-31' properties { 'prop1' = 'val1', 'prop2' = 'val2' })
path '/path/to/schema'

The following schema will be created:

{
  "schema" : {
    "columns" : [
      {
        "name" : "col",
        "type" : "DATE",
        "mode" : "REQUIRED",
        "format" : "yyyy-MM-dd",
        "default" : "2018-12-31",
        "properties" : {
          "prop2" : "val2",
          "prop1" : "val1"
        }
      }
    ]
  },
  "version" : 1
}

Issue Links

• links to: GitHub Pull Request #1684