Test :iter end to end with PostgreSQL

A case of its own for the stdlib and pgx templates, and an :iter query
in the cases for wrap_errors, emit_prepared_queries and
emit_methods_with_db_argument, as the other query types have.
invalid_queries_foo covers :iter without a RETURNING clause, and the
"missing query type" error now lists :iter.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: sgielen

internal/endtoend/testdata/comment_godoc_db_argument/postgresql/pgx/v4/go/query.sql.go

@@ -2,6 +2,10 @@
 -- This function returns a list of Foos
 SELECT * FROM foo;
 
+-- name: IterFoo :iter
+-- This function returns an iterator over Foos
+SELECT * FROM foo;
+
 -- name: OneFoo :one
 -- This function returns one Foo
 SELECT * FROM foo;

internal/endtoend/testdata/comment_godoc_db_argument/postgresql/pgx/v4/query.sql

@@ -2,6 +2,10 @@
 -- This function returns a list of Foos
 SELECT * FROM foo;
 
+-- name: IterFoo :iter
+-- This function returns an iterator over Foos
+SELECT * FROM foo;
+
 -- name: OneFoo :one
 -- This function returns one Foo
 SELECT * FROM foo;

internal/endtoend/testdata/comment_godoc_db_argument/postgresql/pgx/v5/go/query.sql.go

@@ -18,3 +18,6 @@ INSERT INTO foo (id) VALUES ($1);
 
 -- name: InsertFoo :batchone
 INSERT INTO foo (id) VALUES ($1);
+
+-- name: DeleteFooIter :iter
+DELETE FROM foo WHERE id = $1;

internal/endtoend/testdata/comment_godoc_db_argument/postgresql/pgx/v5/query.sql

@@ -1,8 +1,9 @@
 # package querytest
-query.sql:1:1: missing query type [':one', ':many', ':exec', ':execrows', ':execlastid', ':execresult', ':copyfrom', 'batchexec', 'batchmany', 'batchone']: -- name: ListFoos
+query.sql:1:1: missing query type [':one', ':many', ':iter', ':exec', ':execrows', ':execlastid', ':execresult', ':copyfrom', 'batchexec', 'batchmany', 'batchone']: -- name: ListFoos
 query.sql:5:1: invalid query comment: -- name: ListFoos :one :many
 query.sql:8:1: invalid query type: :two
 query.sql:11:1: query "DeleteFoo" specifies parameter ":one" without containing a RETURNING clause
 query.sql:14:1: query "UpdateFoo" specifies parameter ":one" without containing a RETURNING clause
 query.sql:17:1: query "InsertFoo" specifies parameter ":one" without containing a RETURNING clause
 query.sql:20:1: query "InsertFoo" specifies parameter ":batchone" without containing a RETURNING clause
+query.sql:23:1: query "DeleteFooIter" specifies parameter ":iter" without containing a RETURNING clause

internal/endtoend/testdata/invalid_queries_foo/pgx/v4/query.sql

@@ -18,3 +18,6 @@ INSERT INTO foo (id) VALUES ($1);
 
 -- name: InsertFoo :batchone
 INSERT INTO foo (id) VALUES ($1);
+
+-- name: DeleteFooIter :iter
+DELETE FROM foo WHERE id = $1;

internal/endtoend/testdata/invalid_queries_foo/pgx/v4/stderr.txt

@@ -1,8 +1,9 @@
 # package querytest
-query.sql:1:1: missing query type [':one', ':many', ':exec', ':execrows', ':execlastid', ':execresult', ':copyfrom', 'batchexec', 'batchmany', 'batchone']: -- name: ListFoos
+query.sql:1:1: missing query type [':one', ':many', ':iter', ':exec', ':execrows', ':execlastid', ':execresult', ':copyfrom', 'batchexec', 'batchmany', 'batchone']: -- name: ListFoos
 query.sql:5:1: invalid query comment: -- name: ListFoos :one :many
 query.sql:8:1: invalid query type: :two
 query.sql:11:1: query "DeleteFoo" specifies parameter ":one" without containing a RETURNING clause
 query.sql:14:1: query "UpdateFoo" specifies parameter ":one" without containing a RETURNING clause
 query.sql:17:1: query "InsertFoo" specifies parameter ":one" without containing a RETURNING clause
 query.sql:20:1: query "InsertFoo" specifies parameter ":batchone" without containing a RETURNING clause
+query.sql:23:1: query "DeleteFooIter" specifies parameter ":iter" without containing a RETURNING clause

internal/endtoend/testdata/invalid_queries_foo/pgx/v5/query.sql

@@ -15,3 +15,6 @@ UPDATE foo SET id = $2 WHERE id = $1;
 
 -- name: InsertFoo :one
 INSERT INTO foo (id) VALUES ($1);
+
+-- name: DeleteFooIter :iter
+DELETE FROM foo WHERE id = $1;

internal/endtoend/testdata/invalid_queries_foo/pgx/v5/stderr.txt

@@ -1,7 +1,8 @@
 # package querytest
-query.sql:1:1: missing query type [':one', ':many', ':exec', ':execrows', ':execlastid', ':execresult', ':copyfrom', 'batchexec', 'batchmany', 'batchone']: -- name: ListFoos
+query.sql:1:1: missing query type [':one', ':many', ':iter', ':exec', ':execrows', ':execlastid', ':execresult', ':copyfrom', 'batchexec', 'batchmany', 'batchone']: -- name: ListFoos
 query.sql:5:1: invalid query comment: -- name: ListFoos :one :many
 query.sql:8:1: invalid query type: :two
 query.sql:11:1: query "DeleteFoo" specifies parameter ":one" without containing a RETURNING clause
 query.sql:14:1: query "UpdateFoo" specifies parameter ":one" without containing a RETURNING clause
-query.sql:17:1: query "InsertFoo" specifies parameter ":one" without containing a RETURNING clause
+query.sql:17:1: query "InsertFoo" specifies parameter ":one" without containing a RETURNING clause
+query.sql:20:1: query "DeleteFooIter" specifies parameter ":iter" without containing a RETURNING clause