Add support for additional array types.
This commit is contained in:
go-jet
parent
45d4ced9b0
commit
4ee047a675
47 changed files with 1994 additions and 4277 deletions
390
README.md
390
README.md
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@ -198,10 +198,13 @@ stmt := SELECT(
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INNER_JOIN(FilmCategory, FilmCategory.FilmID.EQ(Film.FilmID)).
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INNER_JOIN(Category, Category.CategoryID.EQ(FilmCategory.CategoryID)),
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).WHERE(
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Language.Name.EQ(Char(20)("English")).
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AND(Category.Name.NOT_EQ(Text("Action"))).
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AND(Film.Length.GT(Int32(180))).
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AND(Film.Rating.NOT_EQ(enum.MpaaRating.R)),
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AND(
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Language.Name.EQ(Char(20)("English")), // string columns Language.Name and Category.Name can be compared only with string expression
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Category.Name.NOT_EQ(Text("Action")),
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Film.Length.GT(Int32(180)), // Film.Length is integer column and can be compared only with integer expression
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Film.Rating.NOT_EQ(enum.MpaaRating.R),
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String("Trailers").EQ(ANY(Film.SpecialFeatures)), // type safety is also enforced on array element types
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),
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).ORDER_BY(
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Actor.ActorID.ASC(),
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Film.FilmID.ASC(),
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@ -212,7 +215,8 @@ stmt := SELECT(
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Note that every column has a type. String columns, such as `Language.Name` and `Category.Name` can only be compared with
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string columns and expressions. Similarity, `Actor.ActorID`, `FilmActor.ActorID`, `Film.Length` are integer columns
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and can only be compared with integer columns and expressions.
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and can only be compared with integer columns and expressions. The same type safety rules apply to arrays and their
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element types.
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__How to Get a Parametrized SQL Query from the Statement?__
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```go
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@ -244,7 +248,6 @@ SELECT actor.actor_id AS "actor.actor_id",
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film.fulltext AS "film.fulltext",
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language.language_id AS "language.language_id",
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language.name AS "language.name",
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language.last_update AS "language.last_update",
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category.category_id AS "category.category_id",
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category.name AS "category.name",
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category.last_update AS "category.last_update"
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@ -254,11 +257,18 @@ FROM dvds.actor
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INNER JOIN dvds.language ON (language.language_id = film.language_id)
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INNER JOIN dvds.film_category ON (film_category.film_id = film.film_id)
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INNER JOIN dvds.category ON (category.category_id = film_category.category_id)
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WHERE (((language.name = $1::char(20)) AND (category.name != $2::text)) AND (film.length > $3)) AND (film.rating != 'R')
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WHERE (
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(language.name = $1::char(20))
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AND (category.name != $2::text)
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AND (film.length > $3::integer)
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AND (film.rating != 'R')
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AND ($4::text = ANY(film.special_features))
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)
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ORDER BY actor.actor_id ASC, film.film_id ASC;
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```
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```sh
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[English Action 180]
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[English Action 180 Trailers]
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```
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@ -277,35 +287,40 @@ debugSql - this query string can be copy-pasted into sql editor and executed.
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```sql
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SELECT actor.actor_id AS "actor.actor_id",
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actor.first_name AS "actor.first_name",
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actor.last_name AS "actor.last_name",
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actor.last_update AS "actor.last_update",
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film.film_id AS "film.film_id",
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film.title AS "film.title",
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film.description AS "film.description",
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film.release_year AS "film.release_year",
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film.language_id AS "film.language_id",
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film.rental_duration AS "film.rental_duration",
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film.rental_rate AS "film.rental_rate",
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film.length AS "film.length",
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film.replacement_cost AS "film.replacement_cost",
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film.rating AS "film.rating",
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film.last_update AS "film.last_update",
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film.special_features AS "film.special_features",
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film.fulltext AS "film.fulltext",
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language.language_id AS "language.language_id",
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language.name AS "language.name",
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language.last_update AS "language.last_update",
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category.category_id AS "category.category_id",
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category.name AS "category.name",
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category.last_update AS "category.last_update"
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actor.first_name AS "actor.first_name",
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actor.last_name AS "actor.last_name",
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actor.last_update AS "actor.last_update",
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film.film_id AS "film.film_id",
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film.title AS "film.title",
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film.description AS "film.description",
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film.release_year AS "film.release_year",
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film.language_id AS "film.language_id",
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film.rental_duration AS "film.rental_duration",
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film.rental_rate AS "film.rental_rate",
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film.length AS "film.length",
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film.replacement_cost AS "film.replacement_cost",
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film.rating AS "film.rating",
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film.last_update AS "film.last_update",
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film.special_features AS "film.special_features",
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film.fulltext AS "film.fulltext",
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language.language_id AS "language.language_id",
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language.name AS "language.name",
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category.category_id AS "category.category_id",
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category.name AS "category.name",
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category.last_update AS "category.last_update"
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FROM dvds.actor
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INNER JOIN dvds.film_actor ON (actor.actor_id = film_actor.actor_id)
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INNER JOIN dvds.film ON (film.film_id = film_actor.film_id)
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INNER JOIN dvds.language ON (language.language_id = film.language_id)
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INNER JOIN dvds.film_category ON (film_category.film_id = film.film_id)
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INNER JOIN dvds.category ON (category.category_id = film_category.category_id)
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WHERE (((language.name = 'English'::char(20)) AND (category.name != 'Action'::text)) AND (film.length > 180)) AND (film.rating != 'R')
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INNER JOIN dvds.film_actor ON (actor.actor_id = film_actor.actor_id)
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INNER JOIN dvds.film ON (film.film_id = film_actor.film_id)
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INNER JOIN dvds.language ON (language.language_id = film.language_id)
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INNER JOIN dvds.film_category ON (film_category.film_id = film.film_id)
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INNER JOIN dvds.category ON (category.category_id = film_category.category_id)
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WHERE (
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(language.name = 'English'::char(20))
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AND (category.name != 'Action'::text)
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AND (film.length > 180::integer)
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AND (film.rating != 'R')
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AND ('Trailers'::text = ANY(film.special_features))
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)
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ORDER BY actor.actor_id ASC, film.film_id ASC;
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```
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</details>
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@ -355,8 +370,8 @@ __And that's it.__
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The `dest` variable now contains a list of all actors (each with a list of
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films they acted in). Each film includes information about its language and
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a list of categories it belongs to. This list is filtered to include only
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films longer than 180 minutes, where the film language is 'English', and
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the film category is not 'Action'.
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films longer than 180 minutes, where the film language is 'English',
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the film category is not 'Action' and 'Trailers' are one of the film's special features.
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> [!Tip]
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> It is recommended to enable **Strict Scan** on application startup, especially when destination contains
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@ -370,82 +385,88 @@ fmt.Println(string(jsonText))
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```js
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[
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{
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"ActorID": 1,
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"FirstName": "Penelope",
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"LastName": "Guiness",
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"LastUpdate": "2013-05-26T14:47:57.62Z",
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"Films": [
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{
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"FilmID": 499,
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"Title": "King Evolution",
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"Description": "A Action-Packed Tale of a Boy And a Lumberjack who must Chase a Madman in A Baloon",
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"ReleaseYear": 2006,
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"LanguageID": 1,
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"RentalDuration": 3,
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"RentalRate": 4.99,
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"Length": 184,
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"ReplacementCost": 24.99,
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"Rating": "NC-17",
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"LastUpdate": "2013-05-26T14:50:58.951Z",
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"SpecialFeatures": "{Trailers,\"Deleted Scenes\",\"Behind the Scenes\"}",
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"Fulltext": "'action':5 'action-pack':4 'baloon':21 'boy':10 'chase':16 'evolut':2 'king':1 'lumberjack':13 'madman':18 'must':15 'pack':6 'tale':7",
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"Language": {
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"LanguageID": 1,
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"Name": "English ",
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"LastUpdate": "0001-01-01T00:00:00Z"
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},
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"Categories": [
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{
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"CategoryID": 8,
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"Name": "Family",
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"LastUpdate": "2006-02-15T09:46:27Z"
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}
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]
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}
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]
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},
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{
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"ActorID": 3,
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"FirstName": "Ed",
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"LastName": "Chase",
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"LastUpdate": "2013-05-26T14:47:57.62Z",
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"Films": [
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{
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"FilmID": 996,
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"Title": "Young Language",
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"Description": "A Unbelieveable Yarn of a Boat And a Database Administrator who must Meet a Boy in The First Manned Space Station",
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"ReleaseYear": 2006,
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"LanguageID": 1,
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"RentalDuration": 6,
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"RentalRate": 0.99,
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"Length": 183,
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"ReplacementCost": 9.99,
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"Rating": "G",
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"LastUpdate": "2013-05-26T14:50:58.951Z",
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"SpecialFeatures": "{Trailers,\"Behind the Scenes\"}",
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"Fulltext": "'administr':12 'boat':8 'boy':17 'databas':11 'first':20 'languag':2 'man':21 'meet':15 'must':14 'space':22 'station':23 'unbeliev':4 'yarn':5 'young':1",
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"Language": {
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"LanguageID": 1,
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"Name": "English ",
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"LastUpdate": "0001-01-01T00:00:00Z"
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},
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"Categories": [
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{
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"CategoryID": 6,
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"Name": "Documentary",
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"LastUpdate": "2006-02-15T09:46:27Z"
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}
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]
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}
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]
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},
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//...(125 more items)
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{
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"ActorID": 1,
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"FirstName": "Penelope",
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"LastName": "Guiness",
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"LastUpdate": "2013-05-26T14:47:57.62Z",
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"Films": [
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{
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"FilmID": 499,
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"Title": "King Evolution",
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"Description": "A Action-Packed Tale of a Boy And a Lumberjack who must Chase a Madman in A Baloon",
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"ReleaseYear": 2006,
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"LanguageID": 1,
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"RentalDuration": 3,
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"RentalRate": 4.99,
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"Length": 184,
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"ReplacementCost": 24.99,
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"Rating": "NC-17",
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"LastUpdate": "2013-05-26T14:50:58.951Z",
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"SpecialFeatures": [
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"Trailers",
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"Deleted Scenes",
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"Behind the Scenes"
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],
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"Fulltext": "'action':5 'action-pack':4 'baloon':21 'boy':10 'chase':16 'evolut':2 'king':1 'lumberjack':13 'madman':18 'must':15 'pack':6 'tale':7",
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"Language": {
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"LanguageID": 1,
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"Name": "English ",
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"LastUpdate": "0001-01-01T00:00:00Z"
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},
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"Categories": [
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{
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"CategoryID": 8,
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"Name": "Family",
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"LastUpdate": "2006-02-15T09:46:27Z"
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}
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]
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}
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]
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},
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{
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"ActorID": 3,
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"FirstName": "Ed",
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"LastName": "Chase",
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"LastUpdate": "2013-05-26T14:47:57.62Z",
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"Films": [
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{
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"FilmID": 996,
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"Title": "Young Language",
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"Description": "A Unbelieveable Yarn of a Boat And a Database Administrator who must Meet a Boy in The First Manned Space Station",
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"ReleaseYear": 2006,
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"LanguageID": 1,
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"RentalDuration": 6,
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"RentalRate": 0.99,
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"Length": 183,
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"ReplacementCost": 9.99,
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"Rating": "G",
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"LastUpdate": "2013-05-26T14:50:58.951Z",
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"SpecialFeatures": [
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"Trailers",
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"Behind the Scenes"
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],
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"Fulltext": "'administr':12 'boat':8 'boy':17 'databas':11 'first':20 'languag':2 'man':21 'meet':15 'must':14 'space':22 'station':23 'unbeliev':4 'yarn':5 'young':1",
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"Language": {
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"LanguageID": 1,
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"Name": "English ",
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"LastUpdate": "0001-01-01T00:00:00Z"
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},
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"Categories": [
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{
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"CategoryID": 6,
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"Name": "Documentary",
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"LastUpdate": "2006-02-15T09:46:27Z"
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}
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]
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}
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]
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},
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//...(125 more items)
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]
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```
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What if, we also want to have list of films per category and actors per category, where films are longer than 180 minutes, film language is 'English'
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and film category is not 'Action'.
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What if, we also want to have a list of films per category and actors per category, with the same search conditions.
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In that case we can reuse above statement `stmt`, and just change our destination:
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```go
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@ -464,88 +485,71 @@ handleError(err)
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```js
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[
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{
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"CategoryID": 8,
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"Name": "Family",
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"LastUpdate": "2006-02-15T09:46:27Z",
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"Films": [
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{
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"FilmID": 499,
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"Title": "King Evolution",
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"Description": "A Action-Packed Tale of a Boy And a Lumberjack who must Chase a Madman in A Baloon",
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"ReleaseYear": 2006,
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"LanguageID": 1,
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"RentalDuration": 3,
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"RentalRate": 4.99,
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"Length": 184,
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"ReplacementCost": 24.99,
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"Rating": "NC-17",
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"LastUpdate": "2013-05-26T14:50:58.951Z",
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"SpecialFeatures": "{Trailers,\"Deleted Scenes\",\"Behind the Scenes\"}",
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"Fulltext": "'action':5 'action-pack':4 'baloon':21 'boy':10 'chase':16 'evolut':2 'king':1 'lumberjack':13 'madman':18 'must':15 'pack':6 'tale':7"
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},
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{
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"FilmID": 50,
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"Title": "Baked Cleopatra",
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"Description": "A Stunning Drama of a Forensic Psychologist And a Husband who must Overcome a Waitress in A Monastery",
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"ReleaseYear": 2006,
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"LanguageID": 1,
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"RentalDuration": 3,
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"RentalRate": 2.99,
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"Length": 182,
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"ReplacementCost": 20.99,
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"Rating": "G",
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"LastUpdate": "2013-05-26T14:50:58.951Z",
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"SpecialFeatures": "{Commentaries,\"Behind the Scenes\"}",
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"Fulltext": "'bake':1 'cleopatra':2 'drama':5 'forens':8 'husband':12 'monasteri':20 'must':14 'overcom':15 'psychologist':9 'stun':4 'waitress':17"
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}
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],
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"Actors": [
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{
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"ActorID": 1,
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"FirstName": "Penelope",
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"LastName": "Guiness",
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"LastUpdate": "2013-05-26T14:47:57.62Z"
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},
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{
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"ActorID": 20,
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"FirstName": "Lucille",
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"LastName": "Tracy",
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"LastUpdate": "2013-05-26T14:47:57.62Z"
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},
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{
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"ActorID": 36,
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"FirstName": "Burt",
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"LastName": "Dukakis",
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"LastUpdate": "2013-05-26T14:47:57.62Z"
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},
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{
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"ActorID": 70,
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"FirstName": "Michelle",
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"LastName": "Mcconaughey",
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"LastUpdate": "2013-05-26T14:47:57.62Z"
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},
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{
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"ActorID": 118,
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"FirstName": "Cuba",
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"LastName": "Allen",
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"LastUpdate": "2013-05-26T14:47:57.62Z"
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},
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{
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"ActorID": 187,
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"FirstName": "Renee",
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"LastName": "Ball",
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"LastUpdate": "2013-05-26T14:47:57.62Z"
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},
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{
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"ActorID": 198,
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"FirstName": "Mary",
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"LastName": "Keitel",
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"LastUpdate": "2013-05-26T14:47:57.62Z"
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}
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]
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},
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//...
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{
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"CategoryID": 8,
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"Name": "Family",
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"LastUpdate": "2006-02-15T09:46:27Z",
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"Films": [
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{
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"FilmID": 499,
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"Title": "King Evolution",
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"Description": "A Action-Packed Tale of a Boy And a Lumberjack who must Chase a Madman in A Baloon",
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"ReleaseYear": 2006,
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"LanguageID": 1,
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"RentalDuration": 3,
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"RentalRate": 4.99,
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"Length": 184,
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"ReplacementCost": 24.99,
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"Rating": "NC-17",
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"LastUpdate": "2013-05-26T14:50:58.951Z",
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"SpecialFeatures": [
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"Trailers",
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"Deleted Scenes",
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"Behind the Scenes"
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],
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"Fulltext": "'action':5 'action-pack':4 'baloon':21 'boy':10 'chase':16 'evolut':2 'king':1 'lumberjack':13 'madman':18 'must':15 'pack':6 'tale':7"
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}
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],
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"Actors": [
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{
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"ActorID": 1,
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"FirstName": "Penelope",
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"LastName": "Guiness",
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"LastUpdate": "2013-05-26T14:47:57.62Z"
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},
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{
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"ActorID": 20,
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"FirstName": "Lucille",
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"LastName": "Tracy",
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"LastUpdate": "2013-05-26T14:47:57.62Z"
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},
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{
|
||||
"ActorID": 36,
|
||||
"FirstName": "Burt",
|
||||
"LastName": "Dukakis",
|
||||
"LastUpdate": "2013-05-26T14:47:57.62Z"
|
||||
},
|
||||
{
|
||||
"ActorID": 118,
|
||||
"FirstName": "Cuba",
|
||||
"LastName": "Allen",
|
||||
"LastUpdate": "2013-05-26T14:47:57.62Z"
|
||||
},
|
||||
{
|
||||
"ActorID": 187,
|
||||
"FirstName": "Renee",
|
||||
"LastName": "Ball",
|
||||
"LastUpdate": "2013-05-26T14:47:57.62Z"
|
||||
},
|
||||
{
|
||||
"ActorID": 198,
|
||||
"FirstName": "Mary",
|
||||
"LastName": "Keitel",
|
||||
"LastUpdate": "2013-05-26T14:47:57.62Z"
|
||||
}
|
||||
]
|
||||
},
|
||||
// ...
|
||||
]
|
||||
```
|
||||
</details>
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue