FIX: DB Schema Generator issues

[kishorereddy]

Overview

Fix misc database schema generator issues. See example below

1. Postgres: Fix support for double fields/types, double now mapped to FLOAT8
2. Formatting: The schema ddl generated is messy/unformatted, this formats it
3. Migration: The migration service is updated to handle the formatting above
4. Grouping: The migration service can group multiple DDLs into 1 file based for the same model schema.

Example: Formatting + Float8

create table if not exists "unit_tests"."sample1" ( 
"id"                  BIGSERIAL    NOT NULL  PRIMARY KEY, 
"test_string"         VARCHAR(30)  NOT NULL  , 
"test_stringOpt"      VARCHAR(30)            , 
"test_string_enc"     VARCHAR(100) NOT NULL  , 
"test_bool"           BOOLEAN      NOT NULL  , 
"test_short"          SMALLINT     NOT NULL  , 
"test_int"            INTEGER      NOT NULL  , 
"test_long"           BIGINT       NOT NULL  , 
"test_float"          FLOAT        NOT NULL  , 
"test_double"         FLOAT8       NOT NULL  , 
"test_enum"           INTEGER      NOT NULL  , 
"test_localdate"      DATE         NOT NULL  , 
"test_localtime"      TIME         NOT NULL  , 
"test_localdatetime"  TIMESTAMP    NOT NULL  , 
"test_zoneddatetime"  TIMESTAMPTZ  NOT NULL  , 
"test_uuid"           VARCHAR(50)  NOT NULL  , 
"test_uniqueId"       VARCHAR(50)  NOT NULL  , 
"test_object_addr"    VARCHAR(40)  NOT NULL  , 
"test_object_city"    VARCHAR(30)  NOT NULL  , 
"test_object_state"   VARCHAR(20)  NOT NULL  , 
"test_object_country" INTEGER      NOT NULL  , 
"test_object_zip"     VARCHAR(5)   NOT NULL  , 
"test_object_isPOBox" BOOLEAN      NOT NULL   );

Example: Models

The Account and User models here are both in the users schema.
So the migration service will generate both

1. A single file for each model
2. A single file for all the Model DDLs statements.

1. 1 File per model - users-account.sql

create table if not exists "users"."account" ( 
...

2. 1 File for all models - users.sql

create table if not exists "users"."account" ( 
...
create table if not exists "users"."user" ( ...
...

Ticket(s)

n/a

Links(s)

n/a

Dependencies

n/a

Design

1. SqlDDLColumn
2. SqlDDLGroup

Notes

Pending

Tests