| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // Package arreflect provides utilities for converting between |
| // Apache Arrow arrays and Go structs using reflection. |
| // |
| // The primary entry points are the generic functions [At], [ToSlice], |
| // [FromSlice], [RecordToSlice], and [RecordFromSlice], which convert |
| // between Arrow arrays/records and Go slices of structs. |
| // |
| // Schema inference is available via [InferSchema] and [InferType]. |
| // |
| // Arrow struct tags control field mapping: |
| // |
| // type MyRow struct { |
| // Name string `arrow:"name"` |
| // Score float64 `arrow:"score"` |
| // Skip string `arrow:"-"` |
| // Enc string `arrow:"enc,dict"` |
| // T32 time.Time `arrow:"t32,time32"` |
| // } |
| // |
| // Temporal type overrides for time.Time fields: |
| // |
| // arrow:"field,date32" — use Date32 instead of Timestamp |
| // arrow:"field,date64" — use Date64 instead of Timestamp |
| // arrow:"field,time32" — use Time32(ms) instead of Timestamp |
| // arrow:"field,time64" — use Time64(ns) instead of Timestamp |
| // |
| // Additional tag options: |
| // |
| // arrow:"field,view" — use STRING_VIEW/BINARY_VIEW for string/bytes fields, or LIST_VIEW for slice fields |
| // arrow:"field,ree" — run-end encoding at top-level only (struct fields not supported) |
| // arrow:"field,decimal(precision,scale)" — override decimal precision and scale (e.g., arrow:",decimal(18,2)") |
| package arreflect |
