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chcol.go
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60 lines (49 loc) · 2.29 KB
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package clickhouse
import "github.com/ClickHouse/clickhouse-go/v2/lib/chcol"
// Re-export chcol types/funcs to top level clickhouse package
type (
// Variant represents a ClickHouse Variant type that can hold multiple possible types
Variant = chcol.Variant
// Dynamic is an alias for the Variant type
Dynamic = chcol.Dynamic
// JSON represents a ClickHouse JSON type that can hold multiple possible types
JSON = chcol.JSON
// JSONSerializer interface allows a struct to be manually converted to an optimized JSON structure instead of relying
// on recursive reflection.
// Note that the struct must be a pointer in order for the interface to be matched, reflection will be used otherwise.
JSONSerializer = chcol.JSONSerializer
// JSONDeserializer interface allows a struct to load its data from an optimized JSON structure instead of relying
// on recursive reflection to set its fields.
JSONDeserializer = chcol.JSONDeserializer
)
// NewVariant creates a new Variant with the given value
func NewVariant(v any) Variant {
return chcol.NewVariant(v)
}
// NewVariantWithType creates a new Variant with the given value and ClickHouse type
func NewVariantWithType(v any, chType string) Variant {
return chcol.NewVariantWithType(v, chType)
}
// NewDynamic creates a new Dynamic with the given value
func NewDynamic(v any) Dynamic {
return chcol.NewDynamic(v)
}
// NewDynamicWithType creates a new Dynamic with the given value and ClickHouse type
func NewDynamicWithType(v any, chType string) Dynamic {
return chcol.NewDynamicWithType(v, chType)
}
// NewJSON creates a new empty JSON value
func NewJSON() *JSON {
return chcol.NewJSON()
}
// ExtractJSONPathAs is a convenience function for asserting a path to a specific type.
// The underlying value is also extracted from its Dynamic wrapper if present.
// T cannot be a Dynamic, if you want a Dynamic simply use ExtractJSONPathAsDynamic.
func ExtractJSONPathAs[T any](o *JSON, path string) (valueAs T, ok bool) {
return chcol.ExtractJSONPathAs[T](o, path)
}
// ExtractJSONPathAsDynamic is a convenience function for asserting a path to a Dynamic.
// If the value is not a Dynamic, the value is wrapped in an untyped Dynamic with false returned.
func ExtractJSONPathAsDynamic(o *JSON, path string) (Dynamic, bool) {
return chcol.ExtractJSONPathAsDynamic(o, path)
}