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const { expect } = require('chai')
const Parser = require('../src/parser').default
describe('Postgres', () => {
const parser = new Parser();
const opt = {
database: 'postgresql'
}
function getParsedSql(sql, opt) {
const ast = parser.astify(sql, opt);
return parser.sqlify(ast, opt);
}
const SQL_LIST = [
{
title: 'select with_query_name',
sql: [
`WITH
subQ1 AS (SELECT * FROM Roster WHERE SchoolID = 52),
subQ2 AS (SELECT SchoolID FROM subQ1)
SELECT DISTINCT * FROM subQ2;`,
`WITH subQ1 AS (SELECT * FROM "Roster" WHERE "SchoolID" = 52), subQ2 AS (SELECT "SchoolID" FROM "subQ1") SELECT DISTINCT * FROM "subQ2"`
]
},
{
title: 'select subquery',
sql: [
`SELECT AVG ( PointsScored )
FROM
( SELECT PointsScored
FROM Stats
WHERE SchoolID = 77 )`,
'SELECT AVG("PointsScored") FROM (SELECT "PointsScored" FROM "Stats" WHERE "SchoolID" = 77)'
]
},
{
title: 'select subquery have alias',
sql: [
`SELECT r.LastName
FROM
( SELECT * FROM Roster) AS r`,
'SELECT "r"."LastName" FROM (SELECT * FROM "Roster") AS "r"'
]
},
{
title: 'select implicit "comma cross join"',
sql: [
'SELECT * FROM Roster, TeamMascot',
'SELECT * FROM "Roster", "TeamMascot"'
]
},
{
title: 'select inner join using',
sql: [
`SELECT FirstName
FROM Roster INNER JOIN PlayerStats
USING (LastName);`,
'SELECT "FirstName" FROM "Roster" INNER JOIN "PlayerStats" USING ("LastName")'
]
},
{
title: 'Window Fns with qualified frame clause',
sql: [
`SELECT
first_name,
SUM(user_age) OVER (PARTITION BY user_city ORDER BY created_at DESC) AS age_window
FROM roster`,
'SELECT "first_name", SUM("user_age") OVER (PARTITION BY "user_city" ORDER BY "created_at" DESC) AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns',
sql: [
`SELECT
first_name,
SUM(user_age) OVER (PARTITION BY user_city ORDER BY created_at) AS age_window
FROM roster`,
'SELECT "first_name", SUM("user_age") OVER (PARTITION BY "user_city" ORDER BY "created_at" ASC) AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns + ROWS following',
sql: [
`SELECT
first_name,
SUM(user_age) OVER (
PARTITION BY user_city
ORDER BY created_at ASC
ROWS 1 FOLLOWING
) AS age_window
FROM roster`,
'SELECT "first_name", SUM("user_age") OVER (PARTITION BY "user_city" ORDER BY "created_at" ASC ROWS 1 FOLLOWING) AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns + ROWS unbounded following',
sql: [
`SELECT
first_name,
SUM(user_age) OVER (
PARTITION BY user_city
ORDER BY created_at ASC
ROWS UNbounded FOLLOWING
) AS age_window
FROM roster`,
'SELECT "first_name", SUM("user_age") OVER (PARTITION BY "user_city" ORDER BY "created_at" ASC ROWS UNBOUNDED FOLLOWING) AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns + ROWS unbounded preceding',
sql: [
`SELECT
first_name,
SUM(user_age) OVER (
PARTITION BY user_city
ORDER BY created_at ASC
ROWS UNbounded preceding
) AS age_window
FROM roster`,
'SELECT "first_name", SUM("user_age") OVER (PARTITION BY "user_city" ORDER BY "created_at" ASC ROWS UNBOUNDED PRECEDING) AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns + ROWS between',
sql: [
`SELECT
first_name,
SUM(user_age) OVER (
PARTITION BY user_city
ORDER BY created_at DESC
ROWS BETWEEN 1 preceding AND 5 FOLLOWING
) AS age_window,
SUM(user_age) OVER (
PARTITION BY user_city
ORDER BY created_at DESC
ROWS BETWEEN unbounded preceding AND unbounded following
) AS age_window2
FROM roster`,
'SELECT "first_name", SUM("user_age") OVER (PARTITION BY "user_city" ORDER BY "created_at" DESC ROWS BETWEEN 1 PRECEDING AND 5 FOLLOWING) AS "age_window", SUM("user_age") OVER (PARTITION BY "user_city" ORDER BY "created_at" DESC ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS "age_window2" FROM "roster"'
]
},
{
title: 'Window Fns + ROWS unbounded preceding + current row',
sql: [
`SELECT
first_name,
SUM(user_age) OVER (
PARTITION BY user_city
ORDER BY created_at, user_id ASC
ROWS BETWEEN UNbounded preceding AND CURRENT ROW
) AS age_window
FROM roster`,
'SELECT "first_name", SUM("user_age") OVER (PARTITION BY "user_city" ORDER BY "created_at" ASC, "user_id" ASC ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns + RANKING',
sql: [
`SELECT
ROW_NUMBER() OVER (
PARTITION BY user_city
ORDER BY created_at
) AS age_window
FROM roster`,
'SELECT ROW_NUMBER() OVER (PARTITION BY "user_city" ORDER BY "created_at" ASC) AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns + DENSE_RANK w/ empty OVER',
sql: [
`SELECT
DENSE_RANK() OVER () AS age_window
FROM roster`,
'SELECT DENSE_RANK() OVER () AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns + LAG',
sql: [
`SELECT
LAG(user_name, 10) OVER (
PARTITION BY user_city
ORDER BY created_at
) AS age_window
FROM roster`,
'SELECT LAG("user_name", 10) RESPECT NULLS OVER (PARTITION BY "user_city" ORDER BY "created_at" ASC) AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns + LEAD',
sql: [
`SELECT
LEAD(user_name, 10) OVER (
PARTITION BY user_city
ORDER BY created_at
) AS age_window
FROM roster`,
'SELECT LEAD("user_name", 10) RESPECT NULLS OVER (PARTITION BY "user_city" ORDER BY "created_at" ASC) AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns + NTH_VALUE',
sql: [
`SELECT
NTH_VALUE(user_name, 10) OVER (
PARTITION BY user_city
ORDER BY created_at
) AS age_window
FROM roster`,
'SELECT NTH_VALUE("user_name", 10) RESPECT NULLS OVER (PARTITION BY "user_city" ORDER BY "created_at" ASC) AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns + LAG + explicit NULLS',
sql: [
`SELECT
LAG(user_name) ignore NULLS OVER (
PARTITION BY user_city
ORDER BY created_at
) AS age_window
FROM roster`,
'SELECT LAG("user_name") IGNORE NULLS OVER (PARTITION BY "user_city" ORDER BY "created_at" ASC) AS "age_window" FROM "roster"'
]
},
{
title: 'Window Fns + FIRST_VALUE',
sql: [
`SELECT
FIRST_VALUE(user_name ignore NULLS) OVER (
PARTITION BY user_city
ORDER BY created_at, ranking
) AS age_window
FROM roster`,
'SELECT FIRST_VALUE("user_name" IGNORE NULLS) OVER (PARTITION BY "user_city" ORDER BY "created_at" ASC, "ranking" ASC) AS "age_window" FROM "roster"'
]
},
{
title: 'array column',
sql: [
"SELECT ARRAY[col1, col2, 1, 'str_literal'] from tableb",
`SELECT ARRAY["col1","col2",1,'str_literal'] FROM "tableb"`
]
},
{
title: 'row function column',
sql: [
"SELECT ROW(col1, col2, 'literal', 1) from tableb",
`SELECT ROW("col1", "col2", 'literal', 1) FROM "tableb"`
]
},
{
title: 'json column',
sql: [
`SELECT
d.metadata->>'communication_status' as communication_status
FROM
device d
WHERE d.metadata->>'communication_status' IS NOT NULL
LIMIT 10;`,
`SELECT "d"."metadata" ->> 'communication_status' AS "communication_status" FROM "device" AS "d" WHERE "d"."metadata" ->> 'communication_status' IS NOT NULL LIMIT 10`
]
},
{
title: 'case when in pg',
sql: [
`SELECT SUM(CASE WHEN status = 'ACTIVE' THEN 1 ELSE 0 END) FROM tablename`,
`SELECT SUM(CASE WHEN "status" = 'ACTIVE' THEN 1 ELSE 0 END) FROM "tablename"`
]
},
{
title: 'key keyword in pg',
sql: [
`SELECT * FROM partitions WHERE location IS NULL AND code like 'XX-%' AND key <> 1;`,
`SELECT * FROM "partitions" WHERE "location" IS NULL AND "code" LIKE 'XX-%' AND "key" <> 1`
]
},
]
function neatlyNestTestedSQL(sqlList){
sqlList.forEach(sqlInfo => {
const {title, sql} = sqlInfo
it(`should support ${title}`, () => {
expect(getParsedSql(sql[0], opt)).to.equal(sql[1])
})
})
}
neatlyNestTestedSQL(SQL_LIST)
describe('create sequence', () => {
const SQL_LIST = [
{
title: 'create sequence',
sql: [
`CREATE SEQUENCE public.table_id_seq`,
'CREATE SEQUENCE "public"."table_id_seq"'
]
},
{
title: 'create sequence increment by',
sql: [
`CREATE TEMPORARY SEQUENCE if not exists public.table_id_seq increment by 10`,
'CREATE TEMPORARY SEQUENCE IF NOT EXISTS "public"."table_id_seq" INCREMENT BY 10'
]
},
{
title: 'create sequence increment by minvalue and maxvalue',
sql: [
`CREATE TEMPORARY SEQUENCE if not exists public.table_id_seq increment by 10 minvalue 20 maxvalue 30`,
'CREATE TEMPORARY SEQUENCE IF NOT EXISTS "public"."table_id_seq" INCREMENT BY 10 MINVALUE 20 MAXVALUE 30'
]
},
{
title: 'create sequence increment by start with cache',
sql: [
`CREATE TEMPORARY SEQUENCE if not exists public.table_id_seq increment by 10 no minvalue no maxvalue start with 1 cache 3`,
'CREATE TEMPORARY SEQUENCE IF NOT EXISTS "public"."table_id_seq" INCREMENT BY 10 NO MINVALUE NO MAXVALUE START WITH 1 CACHE 3'
]
},
{
title: 'create sequence increment by start with cache, cycle and owned',
sql: [
`CREATE TEMPORARY SEQUENCE if not exists public.table_id_seq increment by 10 no minvalue no maxvalue start with 1 cache 3 no cycle owned by tn.cn`,
'CREATE TEMPORARY SEQUENCE IF NOT EXISTS "public"."table_id_seq" INCREMENT BY 10 NO MINVALUE NO MAXVALUE START WITH 1 CACHE 3 NO CYCLE OWNED BY "tn"."cn"'
]
},
{
title: 'create sequence increment by start with cache, cycle and owned',
sql: [
`CREATE TEMPORARY SEQUENCE if not exists public.table_id_seq increment 10 no minvalue no maxvalue start with 1 cache 3 cycle owned by none`,
'CREATE TEMPORARY SEQUENCE IF NOT EXISTS "public"."table_id_seq" INCREMENT 10 NO MINVALUE NO MAXVALUE START WITH 1 CACHE 3 CYCLE OWNED BY NONE'
]
},
]
neatlyNestTestedSQL(SQL_LIST)
})
})