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https://issues.apache.org/jira/browse/BEAM-6701?focusedWorklogId=200817&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-200817
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ASF GitHub Bot logged work on BEAM-6701:
----------------------------------------
Author: ASF GitHub Bot
Created on: 19/Feb/19 18:57
Start Date: 19/Feb/19 18:57
Worklog Time Spent: 10m
Work Description: reuvenlax commented on pull request #7865: [BEAM-6701]
Add logical types to schema
URL: https://github.com/apache/beam/pull/7865#discussion_r258181911
##########
File path: sdks/java/core/src/main/java/org/apache/beam/sdk/schemas/Schema.java
##########
@@ -531,19 +633,41 @@ public static final FieldType row(Schema schema) {
return FieldType.forTypeName(TypeName.ROW).setRowSchema(schema).build();
}
+ /** Creates a logical type based on a primitive field type. */
+ public static final <InputT, BaseT> FieldType logicalType(
+ LogicalType<InputT, BaseT> logicalType) {
+ return FieldType.forTypeName(TypeName.LOGICAL_TYPE)
+ .setLogicalType(logicalType)
+ .build()
+ .withMetadata(LOGICAL_TYPE_IDENTIFIER, logicalType.getIdentifier())
+ .withMetadata(LOGICAL_TYPE_ARGUMENT, logicalType.getArgument());
+ }
+
/** Returns a copy of the descriptor with metadata set. */
- public FieldType withMetadata(@Nullable byte[] metadata) {
- return toBuilder().setMetadata(metadata).build();
+ public FieldType withMetadata(String key, byte[] metadata) {
Review comment:
Sorry, it got messed up. Fixed now.
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Issue Time Tracking
-------------------
Worklog Id: (was: 200817)
Time Spent: 3h 10m (was: 3h)
> Create LogicalType for Schema fields
> ------------------------------------
>
> Key: BEAM-6701
> URL: https://issues.apache.org/jira/browse/BEAM-6701
> Project: Beam
> Issue Type: Sub-task
> Components: sdk-java-core
> Reporter: Reuven Lax
> Assignee: Reuven Lax
> Priority: Major
> Time Spent: 3h 10m
> Remaining Estimate: 0h
>
> This will allow users to create their own logical types to store in schema
> fields, backed by one of the fundamental schema field types. Today SQL hacks
> on top of the field metadata to distinguish its types. LogicalTypes would
> allow for a more principled way of doing this.
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