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Add workaround for unsupported JSON type in PL/SQL collections #107

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Merged
merged 1 commit into from
Oct 31, 2025
Merged

Add workaround for unsupported JSON type in PL/SQL collections #107

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19 changes: 12 additions & 7 deletions oracle/common.go
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,14 @@ import (
"gorm.io/gorm/schema"
)

// Extra data types for the data type that are not declared in the
// default DataType list
const (
JSON schema.DataType = "json"
Timestamp schema.DataType = "timestamp"
TimestampWithTimeZone schema.DataType = "timestamp with time zone"
)

// Helper function to get Oracle array type for a field
func getOracleArrayType(field *schema.Field, values []any) string {
switch field.DataType {
Expand All @@ -64,6 +72,10 @@ func getOracleArrayType(field *schema.Field, values []any) string {
return "TABLE OF NUMBER"
case schema.Float:
return "TABLE OF NUMBER"
case JSON:
// PL/SQL does not yet allow declaring collections of JSON (TABLE OF JSON) directly.
// Workaround for JSON type
fallthrough
case schema.String:
if field.Size > 0 && field.Size <= 4000 {
return fmt.Sprintf("TABLE OF VARCHAR2(%d)", field.Size)
Expand Down Expand Up @@ -113,13 +125,6 @@ func findFieldByDBName(schema *schema.Schema, dbName string) *schema.Field {
return nil
}

// Extra data types to determine the destination type for OUT parameters
// when using a serializer
const (
Timestamp schema.DataType = "timestamp"
TimestampWithTimeZone schema.DataType = "timestamp with time zone"
)

// Create typed destination for OUT parameters
func createTypedDestination(f *schema.Field) interface{} {
if f == nil {
Expand Down
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