initial commit

Author: bearddan2000

README.md

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+# java-cli-sbt-postgres-data-type-user-defined
+
+## Description
+Creates a small database table
+called `dog`. This table, `dog`, has been normalized to 3NF.
+Two new tables have been added, `breedLookup` and `colorLookup`.
+
+Creates a new table `dog_expanded` that joins
+`dog`, `breedLookup` and `colorLookup`. Added clustered indexes on
+`dog`.breedId and `dog`.colorId.
+
+Turned `dog_expanded` into a view with an implicit index on `dog_expanded`.id.
+
+Defined a type `type_int_int` that acts as a return type.
+Using table function with the aggregate function
+COUNT, create a new view `breed_count`.
+
+All output normally
+seen in a terminal will be in `java-srv/log` which will dump to the screen. The project may seem to hang but the logs from the container must be written to the project this can take up to 3 min.
+
+## Tech stack
+- java
+- sbt
+  - log4j
+  - postgres driver
+
+## Docker stack
+- hseeberger/scala-sbt:11.0.2-oraclelinux7_1.3.5_2.12.10
+- postgres
+
+## To run
+`sudo ./install.sh -u`
+Creates java-srv/log
+
+## To stop
+`sudo ./install.sh -d`
+Removes java-srv/log
+
+## For help
+`sudo ./install.sh -h`
+
+## Credit
+- [Pretty sql print](https://github.com/htorun/dbtableprinter)
+- [User defined type](https://www.postgresqltutorial.com/postgresql-tutorial/postgresql-user-defined-data-types/)

db/data_dump.tar.gz

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+CREATE SEQUENCE dog_id_seq INCREMENT 1 MINVALUE 1 MAXVALUE 2147483647 START 1;
+
+CREATE TABLE "public"."dog" (
+    "id" integer DEFAULT nextval('dog_id_seq') NOT NULL,
+    "breedId" integer NOT NULL,
+    "colorId" integer NOT NULL
+) WITH (oids = false);

db/sql/00-create-table.sql

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+INSERT INTO "animal"."public"."dog" ("breedId", "colorId")
+VALUES
+(1, 1),
+(1, 2),
+(1, 3),
+(2, 2),
+(3, 2),
+(3, 3),
+(4, 3),
+(4, 4);

db/sql/01-table-insert.sql

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+CREATE SEQUENCE breedLookup_id_seq INCREMENT 1 MINVALUE 1 MAXVALUE 2147483647 START 1;
+
+CREATE TABLE "public"."breedLookup" (
+    "id" integer DEFAULT nextval('breedLookup_id_seq') NOT NULL,
+    "breed" text NOT NULL
+) WITH (oids = false);

db/sql/02-create-table.sql

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+INSERT INTO "animal"."public"."breedLookup" (breed)
+VALUES
+('Am Bulldog'),
+('Blue Tick'),
+('Labrador'),
+('Gr Shepard');

db/sql/03-table-insert.sql

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+CREATE SEQUENCE colorLookup_id_seq INCREMENT 1 MINVALUE 1 MAXVALUE 2147483647 START 1;
+
+CREATE TABLE "public"."colorLookup" (
+    "id" integer DEFAULT nextval('colorLookup_id_seq') NOT NULL,
+    "color" text NOT NULL
+) WITH (oids = false);

db/sql/04-create-table.sql

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+INSERT INTO "animal"."public"."colorLookup" (color)
+VALUES
+('White'),
+('Grey'),
+('Black'),
+('Brown');

db/sql/05-table-insert.sql

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+CREATE TABLE "public"."dog_expanded" AS (
+SELECT a.id, b.breed, c.color
+FROM dog AS a
+JOIN "breedLookup" AS b ON b.id = a."breedId"
+JOIN "colorLookup" AS c ON c.id = a."colorId"
+);

db/sql/06-create-table.sql

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+CREATE INDEX "IDX_breed" on dog("breedId");
+CREATE INDEX "IDX_color" on dog("colorId");