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* feat(cmd/sqlc): Bump version to 1.20.0 --------- Co-authored-by: Andrew Benton <[email protected]>
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# Changelog | ||
All notable changes to this project will be documented in this file. | ||
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## [1.20.0](https://github.com/sqlc-dev/sqlc/releases/tag/v1.20.0) | ||
Released 2023-07-31 | ||
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### Release notes | ||
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#### `kyleconroy/sqlc` is now `sqlc-dev/sqlc` | ||
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We've completed our migration to the [sqlc-dev/sqlc](https://github.com/sqlc-dev/sqlc) repository. All existing links and installation instructions will continue to work. If you're using the `go` tool to install `sqlc`, you'll need to use the new import path to get v1.20.0 (and all future versions). | ||
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```sh | ||
# INCORRECT: old import path | ||
go install github.com/kyleconroy/sqlc/cmd/[email protected] | ||
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# CORRECT: new import path | ||
go install github.com/sqlc-dev/sqlc/cmd/[email protected] | ||
``` | ||
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We designed the upgrade process to be as smooth as possible. If you run into any issues, please [file a bug report](https://github.com/sqlc-dev/sqlc/issues/new?assignees=&labels=bug%2Ctriage&projects=&template=BUG_REPORT.yml) via GitHub. | ||
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#### Use `EXPLAIN ...` output in lint rules | ||
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`sqlc vet` can now run `EXPLAIN` on your queries and include the results for use in your lint rules. For example, this rule checks that `SELECT` queries use an index. | ||
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```yaml | ||
version: 2 | ||
sql: | ||
- schema: "query.sql" | ||
queries: "query.sql" | ||
engine: "postgresql" | ||
database: | ||
uri: "postgresql://postgres:postgres@localhost:5432/postgres" | ||
gen: | ||
go: | ||
package: "db" | ||
out: "db" | ||
rules: | ||
- has-index | ||
rules: | ||
- name: has-index | ||
rule: > | ||
query.sql.startsWith("SELECT") && | ||
!(postgresql.explain.plan.plans.all(p, has(p.index_name) || p.plans.all(p, has(p.index_name)))) | ||
``` | ||
The expression environment has two variables containing `EXPLAIN ...` output, `postgresql.explain` and `mysql.explain`. `sqlc` only populates the variable associated with your configured database engine, and only when you have a [database connection configured](../reference/config.html#database). | ||
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For the `postgresql` engine, `sqlc` runs | ||
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```sql | ||
EXPLAIN (ANALYZE false, VERBOSE, COSTS, SETTINGS, BUFFERS, FORMAT JSON) ... | ||
``` | ||
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where `"..."` is your query string, and parses the output into a [`PostgreSQLExplain`](https://buf.build/sqlc/sqlc/docs/v1.20.0:vet#vet.PostgreSQLExplain) proto message. | ||
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For the `mysql` engine, `sqlc` runs | ||
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```sql | ||
EXPLAIN FORMAT=JSON ... | ||
``` | ||
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where `"..."` is your query string, and parses the output into a [`MySQLExplain`](https://buf.build/sqlc/sqlc/docs/v1.20.0:vet#vet.MySQLExplain) proto message. | ||
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These proto message definitions are too long to include here, but you can find them in the `protos` directory within the `sqlc` source tree. | ||
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The output from `EXPLAIN ...` depends on the structure of your query so it's a bit difficult to offer generic examples. Refer to the [PostgreSQL documentation](https://www.postgresql.org/docs/current/using-explain.html) and [MySQL documentation](https://dev.mysql.com/doc/refman/en/explain-output.html) for more information. | ||
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```yaml | ||
... | ||
rules: | ||
- name: postgresql-query-too-costly | ||
message: "Query cost estimate is too high" | ||
rule: "postgresql.explain.plan.total_cost > 1.0" | ||
- name: postgresql-no-seq-scan | ||
message: "Query plan results in a sequential scan" | ||
rule: "postgresql.explain.plan.node_type == 'Seq Scan'" | ||
- name: mysql-query-too-costly | ||
message: "Query cost estimate is too high" | ||
rule: "has(mysql.explain.query_block.cost_info) && double(mysql.explain.query_block.cost_info.query_cost) > 2.0" | ||
- name: mysql-must-use-primary-key | ||
message: "Query plan doesn't use primary key" | ||
rule: "has(mysql.explain.query_block.table.key) && mysql.explain.query_block.table.key != 'PRIMARY'" | ||
``` | ||
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When building rules that depend on `EXPLAIN ...` output, it may be helpful to see the actual JSON returned from the database. `sqlc` will print it When you set the environment variable `SQLCDEBUG=dumpexplain=1`. Use this environment variable together with a dummy rule to see `EXPLAIN ...` output for all of your queries. | ||
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#### Opting-out of lint rules | ||
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For any query, you can tell `sqlc vet` not to evaluate lint rules using the `@sqlc-vet-disable` query annotation. | ||
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```sql | ||
/* name: GetAuthor :one */ | ||
/* @sqlc-vet-disable */ | ||
SELECT * FROM authors | ||
WHERE id = ? LIMIT 1; | ||
``` | ||
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#### Bulk insert for MySQL | ||
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_Developed by [@Jille](https://github.com/Jille)_ | ||
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MySQL now supports the `:copyfrom` query annotation. The generated code uses the [LOAD DATA](https://dev.mysql.com/doc/refman/8.0/en/load-data.html) command to insert data quickly and efficiently. | ||
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Use caution with this feature. Errors and duplicate keys are treated as warnings and insertion will continue, even without an error for some cases. Use this in a transaction and use `SHOW WARNINGS` to check for any problems and roll back if necessary. | ||
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Check the [error handling](https://dev.mysql.com/doc/refman/8.0/en/load-data.html#load-data-error-handling) documentation for more information. | ||
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```sql | ||
CREATE TABLE foo (a text, b integer, c DATETIME, d DATE); | ||
-- name: InsertValues :copyfrom | ||
INSERT INTO foo (a, b, c, d) VALUES (?, ?, ?, ?); | ||
``` | ||
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```go | ||
func (q *Queries) InsertValues(ctx context.Context, arg []InsertValuesParams) (int64, error) { | ||
... | ||
} | ||
``` | ||
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`LOAD DATA` support must be enabled in the MySQL server. | ||
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#### CAST support for MySQL | ||
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_Developed by [@ryanpbrewster](https://github.com/ryanpbrewster) and [@RadhiFadlillah](https://github.com/RadhiFadlillah)_ | ||
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`sqlc` now understands `CAST` calls in MySQL queries, offering greater flexibility when generating code for complex queries. | ||
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```sql | ||
CREATE TABLE foo (bar BOOLEAN NOT NULL); | ||
-- name: SelectColumnCast :many | ||
SELECT CAST(bar AS BIGINT) FROM foo; | ||
``` | ||
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```go | ||
package querytest | ||
import ( | ||
"context" | ||
) | ||
const selectColumnCast = `-- name: SelectColumnCast :many | ||
SELECT CAST(bar AS BIGINT) FROM foo | ||
` | ||
func (q *Queries) SelectColumnCast(ctx context.Context) ([]int64, error) { | ||
... | ||
} | ||
``` | ||
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#### SQLite improvements | ||
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A slew of fixes landed for our SQLite implementation, bringing it closer to parity with MySQL and PostgreSQL. We want to thank [@orisano](https://github.com/orisano) for their continued dedication to improving `sqlc`'s SQLite support. | ||
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### Changes | ||
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#### Features | ||
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- (debug) Add debug flag and docs for dumping vet rule variables (#2521) | ||
- (mysql) :copyfrom support via LOAD DATA INFILE (#2545) | ||
- (mysql) Implement cast function parser (#2473) | ||
- (postgresql) Add support for PostgreSQL multi-dimensional arrays (#2338) | ||
- (sql/catalog) Support ALTER TABLE IF EXISTS (#2542) | ||
- (sqlite) Virtual tables and fts5 supported (#2531) | ||
- (vet) Add default query parameters for explain queries (#2543) | ||
- (vet) Add output from `EXPLAIN ...` for queries to the CEL program environment (#2489) | ||
- (vet) Introduce a query annotation to opt out of sqlc vet rules (#2474) | ||
- Parse comment lines starting with `@symbol` as boolean flags associated with a query (#2464) | ||
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#### Bug Fixes | ||
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- (codegen/golang) Fix sqlc.embed to work with pq.Array (#2544) | ||
- (compiler) Correctly validate alias in order/group by clauses for joins (#2537) | ||
- (engine/sqlite) Added function to convert cast node (#2470) | ||
- (engine/sqlite) Fix join_operator rule (#2434) | ||
- (engine/sqlite) Fix table_alias rules (#2465) | ||
- (engine/sqlite) Fixed IN operator precedence (#2428) | ||
- (engine/sqlite) Fixed to be able to find relation from WITH clause (#2444) | ||
- (engine/sqlite) Lowercase ast.ResTarget.Name (#2433) | ||
- (engine/sqlite) Put logging statement behind debug flag (#2488) | ||
- (engine/sqlite) Support for repeated table_option (#2482) | ||
- (mysql) Generate unsigned param (#2522) | ||
- (sql/catalog) Support pg_dump output (#2508) | ||
- (sqlite) Code generation for sqlc.slice (#2431) | ||
- (vet) Clean up unnecessary `prepareable()` func and a var name (#2509) | ||
- (vet) Query.cmd was always set to ":" (#2525) | ||
- (vet) Report an error when a query is unpreparable, close prepared statement connection (#2486) | ||
- (vet) Split vet messages out of codegen.proto (#2511) | ||
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#### Documentation | ||
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- Add a description to the document for cases when a query result has no rows (#2462) | ||
- Update copyright and author (#2490) | ||
- Add example sqlc.yaml for migration parsing (#2479) | ||
- Small updates (#2506) | ||
- Point GitHub links to new repository location (#2534) | ||
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#### Miscellaneous Tasks | ||
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- Rename kyleconroy/sqlc to sqlc-dev/sqlc (#2523) | ||
- (proto) Reformat protos using `buf format -w` (#2536) | ||
- Update FEATURE_REQUEST.yml to include SQLite engine option | ||
- Finish migration to sqlc-dev/sqlc (#2548) | ||
- (compiler) Remove some duplicate code (#2546) | ||
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#### Testing | ||
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- Add profiles to docker compose (#2503) | ||
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#### Build | ||
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- Run all supported versions of MySQL / PostgreSQL (#2463) | ||
- (deps) Bump pygments from 2.7.4 to 2.15.0 in /docs (#2485) | ||
- (deps) Bump github.com/jackc/pgconn from 1.14.0 to 1.14.1 (#2483) | ||
- (deps) Bump github.com/google/cel-go from 0.16.0 to 0.17.1 (#2484) | ||
- (docs) Check Python dependencies via dependabot (#2497) | ||
- (deps) Bump idna from 2.10 to 3.4 in /docs (#2499) | ||
- (deps) Bump packaging from 20.9 to 23.1 in /docs (#2498) | ||
- (deps) Bump pygments from 2.15.0 to 2.15.1 in /docs (#2500) | ||
- (deps) Bump certifi from 2022.12.7 to 2023.7.22 in /docs (#2504) | ||
- (deps) Bump sphinx from 4.4.0 to 6.1.0 in /docs (#2505) | ||
- Add psql and mysqlsh to devenv (#2507) | ||
- (deps) Bump urllib3 from 1.26.5 to 2.0.4 in /docs (#2516) | ||
- (deps) Bump chardet from 4.0.0 to 5.1.0 in /docs (#2517) | ||
- (deps) Bump snowballstemmer from 2.1.0 to 2.2.0 in /docs (#2519) | ||
- (deps) Bump pytz from 2021.1 to 2023.3 in /docs (#2520) | ||
- (deps) Bump sphinxcontrib-htmlhelp from 2.0.0 to 2.0.1 in /docs (#2518) | ||
- (deps) Bump pyparsing from 2.4.7 to 3.1.0 in /docs (#2530) | ||
- (deps) Bump alabaster from 0.7.12 to 0.7.13 in /docs (#2526) | ||
- (docs) Ignore updates for sphinx (#2532) | ||
- (deps) Bump babel from 2.9.1 to 2.12.1 in /docs (#2527) | ||
- (deps) Bump sphinxcontrib-applehelp from 1.0.2 to 1.0.4 in /docs (#2533) | ||
- (deps) Bump google.golang.org/grpc from 1.56.2 to 1.57.0 (#2535) | ||
- (deps) Bump pyparsing from 3.1.0 to 3.1.1 in /docs (#2547) | ||
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## [1.19.1](https://github.com/sqlc-dev/sqlc/releases/tag/v1.19.1) | ||
Released 2023-07-13 | ||
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