snapshot of https://github.com/sqlc-dev/sqlc.git (main, 2026-09-16; blobs > 131072B omitted)

internal/endtoend/testdata/copyfrom_singlecolumn_struct_only/issue.md

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+https://github.com/sqlc-dev/sqlc/issues/3443

internal/endtoend/testdata/copyfrom_singlecolumn_struct_only/mysql/go/copyfrom.go

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+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+// source: copyfrom.go
+
+package querytest
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"sync/atomic"
+
+	"github.com/go-sql-driver/mysql"
+	"github.com/hexon/mysqltsv"
+)
+
+var readerHandlerSequenceForInsertSingleValue uint32 = 1
+
+func convertRowsForInsertSingleValue(w *io.PipeWriter, arg []InsertSingleValueParams) {
+	e := mysqltsv.NewEncoder(w, 1, nil)
+	for _, row := range arg {
+		e.AppendValue(row.A)
+	}
+	w.CloseWithError(e.Close())
+}
+
+// InsertSingleValue uses MySQL's LOAD DATA LOCAL INFILE and is not atomic.
+//
+// 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 you want to.
+//
+// Check the documentation for more information:
+// https://dev.mysql.com/doc/refman/8.0/en/load-data.html#load-data-error-handling
+func (q *Queries) InsertSingleValue(ctx context.Context, arg []InsertSingleValueParams) (int64, error) {
+	pr, pw := io.Pipe()
+	defer pr.Close()
+	rh := fmt.Sprintf("InsertSingleValue_%d", atomic.AddUint32(&readerHandlerSequenceForInsertSingleValue, 1))
+	mysql.RegisterReaderHandler(rh, func() io.Reader { return pr })
+	defer mysql.DeregisterReaderHandler(rh)
+	go convertRowsForInsertSingleValue(pw, arg)
+	// The string interpolation is necessary because LOAD DATA INFILE requires
+	// the file name to be given as a literal string.
+	result, err := q.db.ExecContext(ctx, fmt.Sprintf("LOAD DATA LOCAL INFILE '%s' INTO TABLE `foo` %s (a)", "Reader::"+rh, mysqltsv.Escaping))
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected()
+}

internal/endtoend/testdata/copyfrom_singlecolumn_struct_only/mysql/go/db.go

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+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+
+package querytest
+
+import (
+	"context"
+	"database/sql"
+)
+
+type DBTX interface {
+	ExecContext(context.Context, string, ...any) (sql.Result, error)
+	PrepareContext(context.Context, string) (*sql.Stmt, error)
+	QueryContext(context.Context, string, ...any) (*sql.Rows, error)
+	QueryRowContext(context.Context, string, ...any) *sql.Row
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx *sql.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}

internal/endtoend/testdata/copyfrom_singlecolumn_struct_only/mysql/go/models.go

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+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+
+package querytest
+
+import (
+	"database/sql"
+)
+
+type Foo struct {
+	A sql.NullString
+}

internal/endtoend/testdata/copyfrom_singlecolumn_struct_only/mysql/go/query.sql.go

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+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+// source: query.sql
+
+package querytest
+
+import (
+	"database/sql"
+)
+
+const insertSingleValue = `-- name: InsertSingleValue :copyfrom
+INSERT INTO foo (a) VALUES (?)
+`
+
+type InsertSingleValueParams struct {
+	A sql.NullString
+}

internal/endtoend/testdata/copyfrom_singlecolumn_struct_only/mysql/query.sql

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+-- name: InsertSingleValue :copyfrom
+INSERT INTO foo (a) VALUES (?);

internal/endtoend/testdata/copyfrom_singlecolumn_struct_only/mysql/schema.sql

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+CREATE TABLE foo (a text);

internal/endtoend/testdata/copyfrom_singlecolumn_struct_only/mysql/sqlc.json

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+{
+  "version": "1",
+  "packages": [
+    {
+      "path": "go",
+      "sql_package": "database/sql",
+      "sql_driver": "github.com/go-sql-driver/mysql",
+      "engine": "mysql",
+      "name": "querytest",
+      "schema": "schema.sql",
+      "queries": "query.sql",
+      "query_parameter_limit": 0
+    }
+  ]
+}