fix(batch): Ignore query_parameter_limit for batches (#3300)

Author: kyleconroy

internal/codegen/golang/templates/pgx/batchCode.tmpl

@@ -16,7 +16,7 @@ type {{.MethodName}}BatchResults struct {
     closed bool
 }
 
-{{if .Arg.EmitStruct}}
+{{if .Arg.Struct}}
 type {{.Arg.Type}} struct { {{- range .Arg.Struct.Fields}}
   {{.Name}} {{.Type}} {{if .Tag}}{{$.Q}}{{.Tag}}{{$.Q}}{{end}}
   {{- end}}

internal/endtoend/testdata/batch_parameter_limit/issue.md

@@ -0,0 +1 @@
+https://github.com/sqlc-dev/sqlc/issues/3185

internal/endtoend/testdata/batch_parameter_limit/postgresql/pgx/go/batch.go

@@ -0,0 +1,6 @@
+-- name: CreateAuthors :batchexec
+INSERT INTO authors (
+  name, bio
+) VALUES (
+  $1, $2
+);

internal/endtoend/testdata/batch_parameter_limit/postgresql/pgx/go/db.go

@@ -0,0 +1,5 @@
+CREATE TABLE authors (
+  id   BIGSERIAL PRIMARY KEY,
+  name text      NOT NULL,
+  bio  text
+);

internal/endtoend/testdata/batch_parameter_limit/postgresql/pgx/go/models.go

@@ -0,0 +1,11 @@
+version: "2"
+sql:
+  - engine: "postgresql"
+    schema: "schema.sql"
+    queries: "query.sql"
+    gen:
+      go:
+        package: "querytest"
+        out: "go"
+        sql_package: "pgx/v5"
+        query_parameter_limit: 2