feat(psl): exclude unused "MultiSchema" capability in MySQL, simplify multiSchema tests

[jkomyno]

This PR closes https://github.com/prisma/team-orm/issues/996.

Note: a consequence of this PR is that, given a schema like

datasource testds {
    provider = "mysql"
    url = env("TEST_DATABASE_URL")
    schemas = ["public", "sphere"]
}

generator js {
    provider = "prisma-client-js"
    previewFeatures = ["multiSchema"]
}

model Test {
  id Int @id

  @@schema("public")
}

the following validation errors appears

The schemas property is not supported on the current connector.

Our documentation never mentioned that provider = "mysql" supported multiSchema (which in fact isn't supported by our Schema Engine and Query Engine), though it was accepted by psl and prisma validate.

[codspeed-hq]

CodSpeed Performance Report

Merging #4866 will not alter performance

_{Comparing fix/remove-multiSchema-tag-on-mysql (6a52bc0) with main (079da82)}

Summary

✅ 11 untouched benchmarks

[github-actions]

WASM Query Engine file Size

Engine	This PR	Base branch	Diff
Postgres	2.153MiB	2.153MiB	0.000B
Postgres (gzip)	846.110KiB	846.112KiB	-2.000B
Mysql	2.120MiB	2.121MiB	-1.408KiB
Mysql (gzip)	831.956KiB	832.565KiB	-624.000B
Sqlite	2.015MiB	2.015MiB	0.000B
Sqlite (gzip)	793.469KiB	793.469KiB	0.000B

[github-actions]

✅ WASM query-engine performance won't change substantially (1.002x)

Full benchmark report

DATABASE_URL="postgresql://postgres:postgres@localhost:5432/bench?schema=imdb_bench&sslmode=disable" \
node --experimental-wasm-modules query-engine/driver-adapters/executor/dist/bench.mjs
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cpu: AMD EPYC 7763 64-Core Processor
runtime: node v18.20.2 (x64-linux)

benchmark                   time (avg)             (min … max)       p75       p99      p999
-------------------------------------------------------------- -----------------------------
• movies.findMany() (all - ~50K)
-------------------------------------------------------------- -----------------------------
Web Assembly: Baseline     362 ms/iter       (359 ms … 368 ms)    363 ms    368 ms    368 ms
Web Assembly: Latest       457 ms/iter       (452 ms … 466 ms)    462 ms    466 ms    466 ms
Web Assembly: Current      460 ms/iter       (455 ms … 467 ms)    465 ms    467 ms    467 ms
Node API: Current          197 ms/iter       (196 ms … 199 ms)    198 ms    199 ms    199 ms

summary for movies.findMany() (all - ~50K)
  Web Assembly: Current
   2.34x slower than Node API: Current
   1.27x slower than Web Assembly: Baseline
   1.01x slower than Web Assembly: Latest

• movies.findMany({ take: 2000 })
-------------------------------------------------------------- -----------------------------
Web Assembly: Baseline  14'699 µs/iter (14'380 µs … 16'842 µs) 14'530 µs 16'842 µs 16'842 µs
Web Assembly: Latest    18'511 µs/iter (18'044 µs … 21'623 µs) 18'506 µs 21'623 µs 21'623 µs
Web Assembly: Current   18'439 µs/iter (18'278 µs … 19'179 µs) 18'465 µs 19'179 µs 19'179 µs
Node API: Current        8'049 µs/iter   (7'859 µs … 8'331 µs)  8'106 µs  8'331 µs  8'331 µs

summary for movies.findMany({ take: 2000 })
  Web Assembly: Current
   2.29x slower than Node API: Current
   1.25x slower than Web Assembly: Baseline
   1x faster than Web Assembly: Latest

• movies.findMany({ where: {...}, take: 2000 })
-------------------------------------------------------------- -----------------------------
Web Assembly: Baseline   2'343 µs/iter   (2'215 µs … 3'560 µs)  2'321 µs  3'412 µs  3'560 µs
Web Assembly: Latest     2'881 µs/iter   (2'790 µs … 3'651 µs)  2'872 µs  3'329 µs  3'651 µs
Web Assembly: Current    2'873 µs/iter   (2'793 µs … 3'586 µs)  2'872 µs  3'325 µs  3'586 µs
Node API: Current        1'420 µs/iter   (1'336 µs … 1'840 µs)  1'421 µs  1'790 µs  1'840 µs

summary for movies.findMany({ where: {...}, take: 2000 })
  Web Assembly: Current
   2.02x slower than Node API: Current
   1.23x slower than Web Assembly: Baseline
   1x faster than Web Assembly: Latest

• movies.findMany({ include: { cast: true } take: 2000 }) (m2m)
-------------------------------------------------------------- -----------------------------
Web Assembly: Baseline     583 ms/iter       (575 ms … 602 ms)    598 ms    602 ms    602 ms
Web Assembly: Latest       781 ms/iter       (779 ms … 788 ms)    784 ms    788 ms    788 ms
Web Assembly: Current      781 ms/iter       (775 ms … 798 ms)    783 ms    798 ms    798 ms
Node API: Current          480 ms/iter       (473 ms … 490 ms)    490 ms    490 ms    490 ms

summary for movies.findMany({ include: { cast: true } take: 2000 }) (m2m)
  Web Assembly: Current
   1.63x slower than Node API: Current
   1.34x slower than Web Assembly: Baseline
   1x faster than Web Assembly: Latest

• movies.findMany({ where: {...}, include: { cast: true } take: 2000 }) (m2m)
-------------------------------------------------------------- -----------------------------
Web Assembly: Baseline  80'661 µs/iter (80'236 µs … 81'255 µs) 81'099 µs 81'255 µs 81'255 µs
Web Assembly: Latest       110 ms/iter       (110 ms … 111 ms)    110 ms    111 ms    111 ms
Web Assembly: Current      109 ms/iter       (109 ms … 110 ms)    110 ms    110 ms    110 ms
Node API: Current       62'855 µs/iter (61'814 µs … 63'544 µs) 63'388 µs 63'544 µs 63'544 µs

summary for movies.findMany({ where: {...}, include: { cast: true } take: 2000 }) (m2m)
  Web Assembly: Current
   1.74x slower than Node API: Current
   1.36x slower than Web Assembly: Baseline
   1.01x faster than Web Assembly: Latest

• movies.findMany({ take: 2000, include: { cast: { include: { person: true } } } })
-------------------------------------------------------------- -----------------------------
Web Assembly: Baseline   1'018 ms/iter   (1'013 ms … 1'022 ms)  1'022 ms  1'022 ms  1'022 ms
Web Assembly: Latest     1'307 ms/iter   (1'296 ms … 1'330 ms)  1'324 ms  1'330 ms  1'330 ms
Web Assembly: Current    1'314 ms/iter   (1'301 ms … 1'355 ms)  1'332 ms  1'355 ms  1'355 ms
Node API: Current          889 ms/iter       (851 ms … 932 ms)    918 ms    932 ms    932 ms

summary for movies.findMany({ take: 2000, include: { cast: { include: { person: true } } } })
  Web Assembly: Current
   1.48x slower than Node API: Current
   1.29x slower than Web Assembly: Baseline
   1x faster than Web Assembly: Latest

• movie.findMany({ where: { ... }, take: 2000, include: { cast: { include: { person: true } } } })
-------------------------------------------------------------- -----------------------------
Web Assembly: Baseline     143 ms/iter       (143 ms … 144 ms)    144 ms    144 ms    144 ms
Web Assembly: Latest       181 ms/iter       (180 ms … 182 ms)    182 ms    182 ms    182 ms
Web Assembly: Current      184 ms/iter       (181 ms … 191 ms)    190 ms    191 ms    191 ms
Node API: Current          109 ms/iter       (107 ms … 111 ms)    110 ms    111 ms    111 ms

summary for movie.findMany({ where: { ... }, take: 2000, include: { cast: { include: { person: true } } } })
  Web Assembly: Current
   1.7x slower than Node API: Current
   1.29x slower than Web Assembly: Baseline
   1.02x slower than Web Assembly: Latest

• movie.findMany({ where: { reviews: { author: { ... } }, take: 100 }) (to-many -> to-one)
-------------------------------------------------------------- -----------------------------
Web Assembly: Baseline   1'029 µs/iter     (976 µs … 1'698 µs)  1'031 µs  1'456 µs  1'698 µs
Web Assembly: Latest     1'411 µs/iter   (1'336 µs … 2'227 µs)  1'396 µs  2'069 µs  2'227 µs
Web Assembly: Current    1'395 µs/iter   (1'344 µs … 1'866 µs)  1'398 µs  1'698 µs  1'866 µs
Node API: Current          774 µs/iter     (703 µs … 1'212 µs)    796 µs    897 µs  1'212 µs

summary for movie.findMany({ where: { reviews: { author: { ... } }, take: 100 }) (to-many -> to-one)
  Web Assembly: Current
   1.8x slower than Node API: Current
   1.36x slower than Web Assembly: Baseline
   1.01x faster than Web Assembly: Latest

• movie.findMany({ where: { cast: { person: { ... } }, take: 100 }) (m2m -> to-one)
-------------------------------------------------------------- -----------------------------
Web Assembly: Baseline   1'033 µs/iter     (984 µs … 1'760 µs)  1'032 µs  1'421 µs  1'760 µs
Web Assembly: Latest     1'385 µs/iter   (1'312 µs … 2'149 µs)  1'380 µs  2'066 µs  2'149 µs
Web Assembly: Current    1'395 µs/iter   (1'321 µs … 2'406 µs)  1'388 µs  1'976 µs  2'406 µs
Node API: Current          799 µs/iter     (716 µs … 1'201 µs)    810 µs    854 µs  1'201 µs

summary for movie.findMany({ where: { cast: { person: { ... } }, take: 100 }) (m2m -> to-one)
  Web Assembly: Current
   1.75x slower than Node API: Current
   1.35x slower than Web Assembly: Baseline
   1.01x slower than Web Assembly: Latest

After changes in 6a52bc0