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Adapt doris schema type #1495
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| // Copyright Quesma, licensed under the Elastic License 2.0. | ||
| // SPDX-License-Identifier: Elastic-2.0 | ||
| package clickhouse | ||
|
|
||
| import ( | ||
| "reflect" | ||
| "time" | ||
| ) | ||
|
|
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| // this is catch all type for all types we do not exlicitly support | ||
| type UnknownType struct{} | ||
|
|
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| type ClickhouseTypeResolver struct{} | ||
|
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| func (r *ClickhouseTypeResolver) ResolveType(clickHouseTypeName string) reflect.Type { | ||
| switch clickHouseTypeName { | ||
| case "String", "LowCardinality(String)", "UUID", "FixedString": | ||
| return reflect.TypeOf("") | ||
| case "DateTime64", "DateTime", "Date", "DateTime64(3)": | ||
| return reflect.TypeOf(time.Time{}) | ||
| case "UInt8", "UInt16", "UInt32", "UInt64": | ||
| return reflect.TypeOf(uint64(0)) | ||
| case "Int8", "Int16", "Int32": | ||
| return reflect.TypeOf(int32(0)) | ||
| case "Int64": | ||
| return reflect.TypeOf(int64(0)) | ||
| case "Float32", "Float64": | ||
| return reflect.TypeOf(float64(0)) | ||
| case "Point": | ||
| return reflect.TypeOf(Point{}) | ||
| case "Bool": | ||
| return reflect.TypeOf(true) | ||
| case "JSON": | ||
| return reflect.TypeOf(map[string]interface{}{}) | ||
| case "Map(String, Nullable(String))", "Map(String, String)", "Map(LowCardinality(String), String)", "Map(LowCardinality(String), Nullable(String))": | ||
| return reflect.TypeOf(map[string]string{}) | ||
| case "Unknown": | ||
| return reflect.TypeOf(UnknownType{}) | ||
| } | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| // Copyright Quesma, licensed under the Elastic License 2.0. | ||
| // SPDX-License-Identifier: Elastic-2.0 | ||
| package doris | ||
|
|
||
| import ( | ||
| "reflect" | ||
| "strings" | ||
| "time" | ||
| ) | ||
|
|
||
| // this is catch all type for all types we do not exlicitly support | ||
| type UnknownType struct{} | ||
|
|
||
| type DorisTypeResolver struct{} | ||
|
|
||
| func (r *DorisTypeResolver) ResolveType(dorisTypeName string) reflect.Type { | ||
| dorisTypeName = strings.ToLower(dorisTypeName) | ||
| switch dorisTypeName { | ||
| case "char", "varchar", "string", "text": | ||
| return reflect.TypeOf("") | ||
| case "date", "datetime", "datev2", "datetimev2": | ||
| return reflect.TypeOf(time.Time{}) | ||
| case "tinyint", "smallint", "int": | ||
| return reflect.TypeOf(int32(0)) | ||
| case "bigint": | ||
| return reflect.TypeOf(int64(0)) | ||
| case "largeint": | ||
| return reflect.TypeOf("") // LargeInt is typically handled as string due to size | ||
| case "boolean": | ||
| return reflect.TypeOf(true) | ||
| case "float": | ||
| return reflect.TypeOf(float32(0)) | ||
| case "double": | ||
| return reflect.TypeOf(float64(0)) | ||
| case "decimal", "decimalv2": | ||
| return reflect.TypeOf("") // Decimals often handled as strings for precision | ||
| case "json": | ||
| return reflect.TypeOf(map[string]interface{}{}) | ||
| case "hll": | ||
| return reflect.TypeOf([]byte{}) // HLL is a binary type | ||
| case "bitmap": | ||
| return reflect.TypeOf([]byte{}) // Bitmap is also binary | ||
| case "array": | ||
| return reflect.TypeOf([]interface{}{}) | ||
| case "map": | ||
| return reflect.TypeOf(map[string]interface{}{}) | ||
| case "struct": | ||
| return reflect.TypeOf(map[string]interface{}{}) | ||
| case "Unknown": | ||
| return reflect.TypeOf(UnknownType{}) | ||
| } | ||
| return nil | ||
| } |
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I think it would be better to use some const enum instead of string as
instanceName