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feat: implement parsing for the new domainMetadata actions in the commit log #1629

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merged 2 commits into from
Sep 17, 2023
Merged

feat: implement parsing for the new domainMetadata actions in the commit log #1629

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ea17b8b
Implement parsing for the new `domainMetadata` actions in the commit log
rtyler Sep 15, 2023
bf0ca32
Merge branch 'main' into liquid-clustering-read-1626
wjones127 Sep 17, 2023
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21 changes: 21 additions & 0 deletions rust/src/action/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -681,6 +681,18 @@ pub struct CommitInfo {
pub info: Map<String, serde_json::Value>,
}

/// The domain metadata action contains a configuration (string) for a named metadata domain
#[derive(Serialize, Deserialize, Debug, Clone, Default, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct DomainMetaData {
/// Identifier for this domain (system or user-provided)
pub domain: String,
/// String containing configuration for the metadata domain
pub configuration: String,
/// When `true` the action serves as a tombstone
pub removed: bool,
}

/// Represents an action in the Delta log. The Delta log is an aggregate of all actions performed
/// on the table, so the full list of actions is required to properly read a table.
#[derive(Serialize, Deserialize, Debug, Clone)]
Expand All @@ -701,6 +713,8 @@ pub enum Action {
protocol(Protocol),
/// Describes commit provenance information for the table.
commitInfo(CommitInfo),
/// Describe s the configuration for a named metadata domain
domainMetadata(DomainMetaData),
}

impl Action {
Expand Down Expand Up @@ -1163,6 +1177,13 @@ mod tests {
assert!(info.info.contains_key("additionalStruct"));
}

#[test]
fn test_read_domain_metadata() {
let buf = r#"{"domainMetadata":{"domain":"delta.liquid","configuration":"{\"clusteringColumns\":[{\"physicalName\":[\"id\"]}],\"domainName\":\"delta.liquid\"}","removed":false}}"#;
let _action: Action =
serde_json::from_str(buf).expect("Expected to be able to deserialize");
}

#[cfg(feature = "arrow")]
mod arrow_tests {
use arrow::array::{self, ArrayRef, StructArray};
Expand Down
7 changes: 7 additions & 0 deletions rust/src/table_state.rs
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Expand Up @@ -35,6 +35,8 @@ pub struct DeltaTableState {
files: Vec<action::Add>,
// Information added to individual commits
commit_infos: Vec<action::CommitInfo>,
// Domain metadatas provided by the system or user
domain_metadatas: Vec<action::DomainMetaData>,
app_transaction_version: HashMap<String, i64>,
min_reader_version: i32,
min_writer_version: i32,
Expand Down Expand Up @@ -357,6 +359,9 @@ impl DeltaTableState {
action::Action::commitInfo(v) => {
self.commit_infos.push(v);
}
action::Action::domainMetadata(v) => {
self.domain_metadatas.push(v);
}
}

Ok(())
Expand Down Expand Up @@ -412,6 +417,7 @@ mod tests {
tombstones: Default::default(),
files: vec![],
commit_infos: vec![],
domain_metadatas: vec![],
app_transaction_version: Default::default(),
min_reader_version: 0,
min_writer_version: 0,
Expand All @@ -435,6 +441,7 @@ mod tests {
version: -1,
files: vec![],
commit_infos: vec![],
domain_metadatas: vec![],
tombstones: HashSet::new(),
current_metadata: None,
min_reader_version: 1,
Expand Down
Empty file added rust/tests/data/table_with_liquid_clustering/_delta_log/.s3-optimization-0
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Empty file added rust/tests/data/table_with_liquid_clustering/_delta_log/.s3-optimization-1
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Empty file added rust/tests/data/table_with_liquid_clustering/_delta_log/.s3-optimization-2
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1 change: 1 addition & 0 deletions rust/tests/data/table_with_liquid_clustering/_delta_log/00000000000000000000.crc
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15 changes: 15 additions & 0 deletions rust/tests/data/table_with_liquid_clustering/_delta_log/00000000000000000000.json
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{"commitInfo":{"timestamp":1694758257261,"operation":"CREATE OR REPLACE TABLE AS SELECT","operationParameters":{"partitionBy":"[]","clusterBy":"[\"id\"]","description":null,"isManaged":"true","properties":"{\"delta.liquid.clusteringColumns\":\"id\",\"delta.enableDeletionVectors\":\"true\",\"delta.checkpoint.writeStatsAsStruct\":\"true\",\"delta.enableRowTracking\":\"true\",\"delta.checkpoint.writeStatsAsJson\":\"false\",\"delta.rowTracking.materializedRowCommitVersionColumnName\":\"_row-commit-version-col-2f60dcc1-9e36-4424-95e7-799b707e4ddb\",\"delta.rowTracking.materializedRowIdColumnName\":\"_row-id-col-4cbc7924-f662-4db1-aa59-22c23f59eb5d\"}","statsOnLoad":false},"isolationLevel":"WriteSerializable","isBlindAppend":false,"operationMetrics":{"numFiles":"10","numOutputRows":"10","numOutputBytes":"5259"},"engineInfo":"Databricks-Runtime/13.2.x-photon-scala2.12","txnId":"29ebf587-9705-4bb4-ac40-2f02324065c8"}}
{"metaData":{"id":"6ca3020b-3cd9-4048-82e3-1417a0abb98f","format":{"provider":"parquet","options":{}},"schemaString":"{\"type\":\"struct\",\"fields\":[{\"name\":\"id\",\"type\":\"long\",\"nullable\":true,\"metadata\":{}}]}","partitionColumns":[],"configuration":{"delta.liquid.clusteringColumns":"id","delta.enableDeletionVectors":"true","delta.checkpoint.writeStatsAsStruct":"true","delta.enableRowTracking":"true","delta.checkpoint.writeStatsAsJson":"false","delta.rowTracking.materializedRowCommitVersionColumnName":"_row-commit-version-col-2f60dcc1-9e36-4424-95e7-799b707e4ddb","delta.rowTracking.materializedRowIdColumnName":"_row-id-col-4cbc7924-f662-4db1-aa59-22c23f59eb5d"},"createdTime":1694758256009}}
{"protocol":{"minReaderVersion":3,"minWriterVersion":7,"readerFeatures":["deletionVectors"],"writerFeatures":["domainMetadata","deletionVectors","rowTracking","liquid"]}}
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{"domainMetadata":{"domain":"delta.liquid","configuration":"{\"clusteringColumns\":[{\"physicalName\":[\"id\"]}],\"domainName\":\"delta.liquid\"}","removed":false}}
{"domainMetadata":{"domain":"delta.rowTracking","configuration":"{\"rowIdHighWaterMark\":9,\"domainName\":\"delta.rowTracking\"}","removed":false}}
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9 changes: 8 additions & 1 deletion rust/tests/read_delta_log_test.rs
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@@ -1,4 +1,4 @@
use deltalake::DeltaTableBuilder;
use deltalake::{DeltaResult, DeltaTableBuilder};
use pretty_assertions::assert_eq;
use std::collections::HashMap;
use std::time::SystemTime;
Expand Down Expand Up @@ -142,3 +142,10 @@ async fn test_log_buffering_fail() {
.is_err();
assert!(table_err);
}

#[tokio::test]
async fn test_read_liquid_table() -> DeltaResult<()> {
let path = "./tests/data/table_with_liquid_clustering";
let _table = deltalake::open_table(&path).await?;
Ok(())
}