feat(mito): add options to ignore building index for specific column …

…ids (#3295)

Signed-off-by: Zhenchi <zhongzc_arch@outlook.com>

src/mito2/src/access_layer.rs

@@ -24,6 +24,7 @@ use crate::cache::write_cache::SstUploadRequest;
 use crate::cache::CacheManagerRef;
 use crate::error::{CleanDirSnafu, DeleteIndexSnafu, DeleteSstSnafu, OpenDalSnafu, Result};
 use crate::read::Source;
+use crate::region::options::IndexOptions;
 use crate::sst::file::{FileHandle, FileId, FileMeta};
 use crate::sst::index::intermediate::IntermediateManager;
 use crate::sst::index::IndexerBuilder;
@@ -143,6 +144,7 @@ impl AccessLayer {
                 row_group_size: write_opts.row_group_size,
                 object_store: self.object_store.clone(),
                 intermediate_manager: self.intermediate_manager.clone(),
+                index_options: request.index_options,
             }
             .build();
             let mut writer = ParquetWriter::new(
@@ -187,6 +189,8 @@ pub(crate) struct SstWriteRequest {
     pub(crate) mem_threshold_index_create: Option<usize>,
     /// The size of write buffer for index.
     pub(crate) index_write_buffer_size: Option<usize>,
+    /// The options of the index for the region.
+    pub(crate) index_options: IndexOptions,
 }
 
 /// Creates a fs object store with atomic write dir.

src/mito2/src/cache/write_cache.rs

@@ -118,6 +118,7 @@ impl WriteCache {
             row_group_size: write_opts.row_group_size,
             object_store: self.file_cache.local_store(),
             intermediate_manager: self.intermediate_manager.clone(),
+            index_options: write_request.index_options,
         }
         .build();
 
@@ -235,6 +236,7 @@ mod tests {
     use super::*;
     use crate::cache::test_util::new_fs_store;
     use crate::cache::CacheManager;
+    use crate::region::options::IndexOptions;
     use crate::sst::file::FileId;
     use crate::sst::location::{index_file_path, sst_file_path};
     use crate::sst::parquet::reader::ParquetReaderBuilder;
@@ -279,6 +281,7 @@ mod tests {
             mem_threshold_index_create: None,
             index_write_buffer_size: None,
             cache_manager: Default::default(),
+            index_options: IndexOptions::default(),
         };
 
         let upload_request = SstUploadRequest {
@@ -363,6 +366,7 @@ mod tests {
             mem_threshold_index_create: None,
             index_write_buffer_size: None,
             cache_manager: cache_manager.clone(),
+            index_options: IndexOptions::default(),
         };
         let write_opts = WriteOptions {
             row_group_size: 512,

src/mito2/src/compaction/twcs.rs

@@ -37,6 +37,7 @@ use crate::metrics::{COMPACTION_FAILURE_COUNT, COMPACTION_STAGE_ELAPSED};
 use crate::read::projection::ProjectionMapper;
 use crate::read::seq_scan::SeqScan;
 use crate::read::{BoxedBatchReader, Source};
+use crate::region::options::IndexOptions;
 use crate::request::{
     BackgroundNotify, CompactionFailed, CompactionFinished, OutputTx, WorkerRequest,
 };
@@ -186,6 +187,7 @@ impl Picker for TwcsPicker {
             start_time,
             cache_manager,
             storage: current_version.options.storage.clone(),
+            index_options: current_version.options.index_options.clone(),
         };
         Some(Box::new(task))
     }
@@ -251,6 +253,8 @@ pub(crate) struct TwcsCompactionTask {
     pub(crate) cache_manager: CacheManagerRef,
     /// Target storage of the region.
     pub(crate) storage: Option<String>,
+    /// Index options of the region.
+    pub(crate) index_options: IndexOptions,
 }
 
 impl Debug for TwcsCompactionTask {
@@ -327,6 +331,7 @@ impl TwcsCompactionTask {
             let file_id = output.output_file_id;
             let cache_manager = self.cache_manager.clone();
             let storage = self.storage.clone();
+            let index_options = self.index_options.clone();
             futs.push(async move {
                 let reader =
                     build_sst_reader(metadata.clone(), sst_layer.clone(), &output.inputs).await?;
@@ -341,6 +346,7 @@ impl TwcsCompactionTask {
                             create_inverted_index,
                             mem_threshold_index_create,
                             index_write_buffer_size,
+                            index_options,
                         },
                         &write_opts,
                     )

src/mito2/src/flush.rs

@@ -34,6 +34,7 @@ use crate::error::{
 use crate::memtable::MemtableBuilderRef;
 use crate::metrics::{FLUSH_BYTES_TOTAL, FLUSH_ELAPSED, FLUSH_ERRORS_TOTAL, FLUSH_REQUESTS_TOTAL};
 use crate::read::Source;
+use crate::region::options::IndexOptions;
 use crate::region::version::{VersionControlData, VersionControlRef, VersionRef};
 use crate::request::{
     BackgroundNotify, FlushFailed, FlushFinished, OptionOutputTx, OutputTx, SenderDdlRequest,
@@ -203,6 +204,9 @@ pub(crate) struct RegionFlushTask {
     pub(crate) engine_config: Arc<MitoConfig>,
     pub(crate) row_group_size: Option<usize>,
     pub(crate) cache_manager: CacheManagerRef,
+
+    /// Index options for the region.
+    pub(crate) index_options: IndexOptions,
 }
 
 impl RegionFlushTask {
@@ -338,6 +342,7 @@ impl RegionFlushTask {
                 create_inverted_index,
                 mem_threshold_index_create,
                 index_write_buffer_size,
+                index_options: self.index_options.clone(),
             };
             let Some(sst_info) = self
                 .access_layer
@@ -766,6 +771,7 @@ mod tests {
             engine_config: Arc::new(MitoConfig::default()),
             row_group_size: None,
             cache_manager: Arc::new(CacheManager::default()),
+            index_options: IndexOptions::default(),
         };
         task.push_sender(OptionOutputTx::from(output_tx));
         scheduler

src/mito2/src/read/scan_region.rs

@@ -259,6 +259,14 @@ impl ScanRegion {
             self.access_layer.object_store().clone(),
             file_cache,
             self.version.metadata.as_ref(),
+            self.version
+                .options
+                .index_options
+                .inverted_index
+                .ignore_column_ids
+                .iter()
+                .copied()
+                .collect(),
         )
         .build(&self.request.filters)
         .inspect_err(|err| warn!(err; "Failed to build index applier"))

src/mito2/src/region/options.rs

@@ -18,10 +18,12 @@ use std::collections::HashMap;
 use std::time::Duration;
 
 use common_wal::options::{WalOptions, WAL_OPTIONS_KEY};
-use serde::Deserialize;
+use serde::de::Error as _;
+use serde::{Deserialize, Deserializer};
 use serde_json::Value;
 use serde_with::{serde_as, with_prefix, DisplayFromStr};
 use snafu::ResultExt;
+use store_api::storage::ColumnId;
 
 use crate::error::{Error, JsonOptionsSnafu, Result};
 
@@ -40,6 +42,8 @@ pub struct RegionOptions {
     pub storage: Option<String>,
     /// Wal options.
     pub wal_options: WalOptions,
+    /// Index options.
+    pub index_options: IndexOptions,
 }
 
 impl TryFrom<&HashMap<String, String>> for RegionOptions {
@@ -64,11 +68,14 @@ impl TryFrom<&HashMap<String, String>> for RegionOptions {
             },
         )?;
 
+        let index_options: IndexOptions = serde_json::from_str(&json).context(JsonOptionsSnafu)?;
+
         Ok(RegionOptions {
             ttl: options.ttl,
             compaction,
             storage: options.storage,
             wal_options,
+            index_options,
         })
     }
 }
@@ -152,6 +159,40 @@ impl Default for RegionOptionsWithoutEnum {
     }
 }
 
+with_prefix!(prefix_inverted_index "index.inverted_index.");
+
+/// Options for index.
+#[derive(Debug, Clone, PartialEq, Eq, Default, Deserialize)]
+#[serde(default)]
+pub struct IndexOptions {
+    /// Options for the inverted index.
+    #[serde(flatten, with = "prefix_inverted_index")]
+    pub inverted_index: InvertedIndexOptions,
+}
+
+/// Options for the inverted index.
+#[derive(Debug, Clone, PartialEq, Eq, Default, Deserialize)]
+#[serde(default)]
+pub struct InvertedIndexOptions {
+    /// The column ids that should be ignored when building the inverted index.
+    /// The column ids are separated by commas. For example, "1,2,3".
+    #[serde(deserialize_with = "deserialize_ignore_column_ids")]
+    pub ignore_column_ids: Vec<ColumnId>,
+}
+
+fn deserialize_ignore_column_ids<'de, D>(deserializer: D) -> Result<Vec<ColumnId>, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    let s: String = Deserialize::deserialize(deserializer)?;
+    let mut column_ids = Vec::new();
+    for item in s.split(',') {
+        let column_id = item.parse().map_err(D::Error::custom)?;
+        column_ids.push(column_id);
+    }
+    Ok(column_ids)
+}
+
 /// Converts the `options` map to a json object.
 ///
 /// Converts all key-values to lowercase and replaces "null" strings by `null` json values.
@@ -257,6 +298,21 @@ mod tests {
         expect == got
     }
 
+    #[test]
+    fn test_with_index() {
+        let map = make_map(&[("index.inverted_index.ignore_column_ids", "1,2,3")]);
+        let options = RegionOptions::try_from(&map).unwrap();
+        let expect = RegionOptions {
+            index_options: IndexOptions {
+                inverted_index: InvertedIndexOptions {
+                    ignore_column_ids: vec![1, 2, 3],
+                },
+            },
+            ..Default::default()
+        };
+        assert_eq!(expect, options);
+    }
+
     // No need to add compatible tests for RegionOptions since the above tests already check for compatibility.
     #[test]
     fn test_with_any_wal_options() {
@@ -281,6 +337,7 @@ mod tests {
             ("compaction.twcs.time_window", "2h"),
             ("compaction.type", "twcs"),
             ("storage", "S3"),
+            ("index.inverted_index.ignore_column_ids", "1,2,3"),
             (
                 WAL_OPTIONS_KEY,
                 &serde_json::to_string(&wal_options).unwrap(),
@@ -296,6 +353,11 @@ mod tests {
             }),
             storage: Some("s3".to_string()),
             wal_options,
+            index_options: IndexOptions {
+                inverted_index: InvertedIndexOptions {
+                    ignore_column_ids: vec![1, 2, 3],
+                },
+            },
         };
         assert_eq!(expect, options);
     }

src/mito2/src/sst/index.rs

@@ -27,6 +27,7 @@ use store_api::metadata::RegionMetadataRef;
 use store_api::storage::RegionId;
 
 use crate::read::Batch;
+use crate::region::options::IndexOptions;
 use crate::sst::file::FileId;
 use crate::sst::index::intermediate::IntermediateManager;
 
@@ -132,6 +133,7 @@ pub(crate) struct IndexerBuilder<'a> {
     pub(crate) segment_row_count: usize,
     pub(crate) object_store: ObjectStore,
     pub(crate) intermediate_manager: IntermediateManager,
+    pub(crate) index_options: IndexOptions,
 }
 
 impl<'a> IndexerBuilder<'a> {
@@ -184,7 +186,15 @@ impl<'a> IndexerBuilder<'a> {
             self.mem_threshold_index_create,
             segment_row_count,
         )
-        .with_buffer_size(self.write_buffer_size);
+        .with_buffer_size(self.write_buffer_size)
+        .with_ignore_column_ids(
+            self.index_options
+                .inverted_index
+                .ignore_column_ids
+                .iter()
+                .map(|i| i.to_string())
+                .collect(),
+        );
 
         Indexer {
             file_id: self.file_id,
@@ -281,6 +291,7 @@ mod tests {
             row_group_size: 1024,
             object_store: mock_object_store(),
             intermediate_manager: mock_intm_mgr(),
+            index_options: IndexOptions::default(),
         }
         .build();
 
@@ -301,6 +312,7 @@ mod tests {
             row_group_size: 1024,
             object_store: mock_object_store(),
             intermediate_manager: mock_intm_mgr(),
+            index_options: IndexOptions::default(),
         }
         .build();
 
@@ -321,6 +333,7 @@ mod tests {
             row_group_size: 1024,
             object_store: mock_object_store(),
             intermediate_manager: mock_intm_mgr(),
+            index_options: IndexOptions::default(),
         }
         .build();
 
@@ -341,6 +354,7 @@ mod tests {
             row_group_size: 0,
             object_store: mock_object_store(),
             intermediate_manager: mock_intm_mgr(),
+            index_options: IndexOptions::default(),
         }
         .build();