shuffle around search

frontend/src/components/search/results.tsx

@@ -90,6 +90,7 @@ export const ImageResult = ({ filename, tags, metadata }: SearchItem) => {
         <div className="search-result-card">
             <h4>{title}</h4>
             <Tag tags={tags} />
+            <Metadata metadata={metadata} />
             <div className="image-container">
                 {mime_type && mime_type?.startsWith('image/') && <img src={`data:${mime_type};base64,${content}`} alt={title} className="search-result-image"/>}
             </div>
@@ -115,7 +116,7 @@ export const Metadata = ({ metadata }: { metadata: any }) => {
     return (
         <div className="metadata">
             <ul>    
-                {Object.entries(metadata).map(([key, value]) => (
+                {Object.entries(metadata).filter(([key, value]) => ![null, undefined].includes(value as any)).map(([key, value]) => (
                     <MetadataItem key={key} item={key} value={value} />
                 ))}
             </ul>
@@ -154,19 +155,19 @@ export const EmailResult = ({ content, tags, metadata }: SearchItem) => {
 }
 
 export const SearchResult = ({ result }: { result: SearchItem }) => {
-    if (result.mime_type.startsWith('image/')) {
+    if (result.mime_type?.startsWith('image/')) {
         return <ImageResult {...result} />
     }
-    if (result.mime_type.startsWith('text/markdown')) {
+    if (result.mime_type?.startsWith('text/markdown')) {
         return <MarkdownResult {...result} /> 
     }
-    if (result.mime_type.startsWith('text/')) {
+    if (result.mime_type?.startsWith('text/')) {
         return <TextResult {...result} />
     }
-    if (result.mime_type.startsWith('application/pdf')) {
+    if (result.mime_type?.startsWith('application/pdf')) {
         return <PDFResult {...result} />
     }
-    if (result.mime_type.startsWith('message/rfc822')) {
+    if (result.mime_type?.startsWith('message/rfc822')) {
         return <EmailResult {...result} />
     }
     console.log(result)

src/memory/api/MCP/memory.py

@@ -109,14 +109,12 @@ async def search_knowledge_base(
     search_filters = SearchFilters(**filters)
     search_filters["source_ids"] = filter_source_ids(modalities, search_filters)
 
-    upload_data = extract.extract_text(query)
+    upload_data = extract.extract_text(query, skip_summary=True)
     results = await search(
         upload_data,
         previews=previews,
         modalities=modalities,
         limit=limit,
-        min_text_score=0.4,
-        min_multimodal_score=0.25,
         filters=search_filters,
     )
 

src/memory/api/search/__init__.py

@@ -1,4 +1,4 @@
 from .search import search
-from .utils import SearchResult, SearchFilters
+from .types import SearchResult, SearchFilters
 
 __all__ = ["search", "SearchResult", "SearchFilters"]

src/memory/api/search/bm25.py

@@ -2,13 +2,15 @@
 Search endpoints for the knowledge base API.
 """
 
+import asyncio
 from hashlib import sha256
 import logging
 
 import bm25s
 import Stemmer
-from memory.api.search.utils import SourceData, AnnotatedChunk, SearchFilters
+from memory.api.search.types import SearchFilters
 
+from memory.common import extract
 from memory.common.db.connection import make_session
 from memory.common.db.models import Chunk, ConfidenceScore
 
@@ -20,7 +22,7 @@ async def search_bm25(
     modalities: set[str],
     limit: int = 10,
     filters: SearchFilters = SearchFilters(),
-) -> list[tuple[SourceData, AnnotatedChunk]]:
+) -> list[str]:
     with make_session() as db:
         items_query = db.query(Chunk.id, Chunk.content).filter(
             Chunk.collection_name.in_(modalities),
@@ -65,21 +67,18 @@ async def search_bm25(
         item_ids[sha256(doc.encode("utf-8")).hexdigest()]: score
         for doc, score in zip(results[0], scores[0])
     }
+    return list(item_scores.keys())
 
-    with make_session() as db:
-        chunks = db.query(Chunk).filter(Chunk.id.in_(item_scores.keys())).all()
-        results = []
-        for chunk in chunks:
-            # Prefetch all needed source data while in session
-            source_data = SourceData.from_chunk(chunk)
 
-            annotated = AnnotatedChunk(
+async def search_bm25_chunks(
-                id=str(chunk.id),
+    data: list[extract.DataChunk],
-                score=item_scores[chunk.id],
+    modalities: set[str] = set(),
-                metadata=chunk.source.as_payload(),
+    limit: int = 10,
-                preview=None,
+    filters: SearchFilters = SearchFilters(),
-                search_method="bm25",
+    timeout: int = 2,
-            )
+) -> list[str]:
-            results.append((source_data, annotated))
+    query = " ".join([c for chunk in data for c in chunk.data if isinstance(c, str)])
-
+    return await asyncio.wait_for(
-        return results
+        search_bm25(query, modalities, limit, filters),
+        timeout,
+    )

src/memory/api/search/embeddings.py

@@ -1,65 +1,20 @@
-import base64
-import io
 import logging
 import asyncio
-from typing import Any, Callable, Optional, cast
+from typing import Any, Callable, cast
 
 import qdrant_client
-from PIL import Image
 from qdrant_client.http import models as qdrant_models
 
-from memory.common import embedding, extract, qdrant, settings
+from memory.common import embedding, extract, qdrant
-from memory.common.db.connection import make_session
+from memory.common.collections import (
-from memory.common.db.models import Chunk
+    MULTIMODAL_COLLECTIONS,
-from memory.api.search.utils import SourceData, AnnotatedChunk, SearchFilters
+    TEXT_COLLECTIONS,
+)
+from memory.api.search.types import SearchFilters
 
 logger = logging.getLogger(__name__)
 
 
-def annotated_chunk(
-    chunk: Chunk, search_result: qdrant_models.ScoredPoint, previews: bool
-) -> tuple[SourceData, AnnotatedChunk]:
-    def serialize_item(item: bytes | str | Image.Image) -> str | None:
-        if not previews and not isinstance(item, str):
-            return None
-        if (
-            not previews
-            and isinstance(item, str)
-            and len(item) > settings.MAX_NON_PREVIEW_LENGTH
-        ):
-            return item[: settings.MAX_NON_PREVIEW_LENGTH] + "..."
-        elif isinstance(item, str):
-            if len(item) > settings.MAX_PREVIEW_LENGTH:
-                return None
-            return item
-        if isinstance(item, Image.Image):
-            buffer = io.BytesIO()
-            format = item.format or "PNG"
-            item.save(buffer, format=format)
-            mime_type = f"image/{format.lower()}"
-            return f"data:{mime_type};base64,{base64.b64encode(buffer.getvalue()).decode('utf-8')}"
-        elif isinstance(item, bytes):
-            return base64.b64encode(item).decode("utf-8")
-        else:
-            raise ValueError(f"Unsupported item type: {type(item)}")
-
-    metadata = search_result.payload or {}
-    metadata = {
-        k: v
-        for k, v in metadata.items()
-        if k not in ["content", "filename", "size", "content_type", "tags"]
-    }
-
-    # Prefetch all needed source data while in session
-    return SourceData.from_chunk(chunk), AnnotatedChunk(
-        id=str(chunk.id),
-        score=search_result.score,
-        metadata=metadata,
-        preview=serialize_item(chunk.data[0]) if chunk.data else None,
-        search_method="embeddings",
-    )
-
-
 async def query_chunks(
     client: qdrant_client.QdrantClient,
     upload_data: list[extract.DataChunk],
@@ -178,15 +133,14 @@ def merge_filters(
     return filters
 
 
-async def search_embeddings(
+async def search_chunks(
     data: list[extract.DataChunk],
-    previews: Optional[bool] = False,
     modalities: set[str] = set(),
     limit: int = 10,
     min_score: float = 0.3,
     filters: SearchFilters = {},
     multimodal: bool = False,
-) -> list[tuple[SourceData, AnnotatedChunk]]:
+) -> list[str]:
     """
     Search across knowledge base using text query and optional files.
 
@@ -218,9 +172,38 @@ async def search_embeddings(
     found_chunks = {
         str(r.id): r for results in search_results.values() for r in results
     }
-    with make_session() as db:
+    return list(found_chunks.keys())
-        chunks = db.query(Chunk).filter(Chunk.id.in_(found_chunks.keys())).all()
+
-        return [
+
-            annotated_chunk(chunk, found_chunks[str(chunk.id)], previews or False)
+async def search_chunks_embeddings(
-            for chunk in chunks
+    data: list[extract.DataChunk],
-        ]
+    modalities: set[str] = set(),
+    limit: int = 10,
+    filters: SearchFilters = SearchFilters(),
+    timeout: int = 2,
+) -> list[str]:
+    all_ids = await asyncio.gather(
+        asyncio.wait_for(
+            search_chunks(
+                data,
+                modalities & TEXT_COLLECTIONS,
+                limit,
+                0.4,
+                filters,
+                False,
+            ),
+            timeout,
+        ),
+        asyncio.wait_for(
+            search_chunks(
+                data,
+                modalities & MULTIMODAL_COLLECTIONS,
+                limit,
+                0.25,
+                filters,
+                True,
+            ),
+            timeout,
+        ),
+    )
+    return list({id for ids in all_ids for id in ids})

src/memory/api/search/search.py

@@ -4,36 +4,70 @@ Search endpoints for the knowledge base API.
 
 import asyncio
 import logging
+from collections import defaultdict
 from typing import Optional
-
+from sqlalchemy.orm import load_only
 from memory.common import extract, settings
-from memory.common.collections import (
+from memory.common.db.connection import make_session
-    ALL_COLLECTIONS,
+from memory.common.db.models import Chunk, SourceItem
-    MULTIMODAL_COLLECTIONS,
+from memory.common.collections import ALL_COLLECTIONS
-    TEXT_COLLECTIONS,
+from memory.api.search.embeddings import search_chunks_embeddings
-)
-from memory.api.search.embeddings import search_embeddings
 
 if settings.ENABLE_BM25_SEARCH:
-    from memory.api.search.bm25 import search_bm25
+    from memory.api.search.bm25 import search_bm25_chunks
 
-from memory.api.search.utils import (
+from memory.api.search.types import SearchFilters, SearchResult
-    SearchFilters,
-    SearchResult,
-    group_chunks,
-    with_timeout,
-)
 
 logger = logging.getLogger(__name__)
 
 
+async def search_chunks(
+    data: list[extract.DataChunk],
+    modalities: set[str] = set(),
+    limit: int = 10,
+    filters: SearchFilters = {},
+    timeout: int = 2,
+) -> list[Chunk]:
+    funcs = [search_chunks_embeddings]
+    if settings.ENABLE_BM25_SEARCH:
+        funcs.append(search_bm25_chunks)
+
+    all_ids = await asyncio.gather(
+        *[func(data, modalities, limit, filters, timeout) for func in funcs]
+    )
+    all_ids = {id for ids in all_ids for id in ids}
+
+    with make_session() as db:
+        chunks = (
+            db.query(Chunk)
+            .options(load_only(Chunk.id, Chunk.source_id, Chunk.content))  # type: ignore
+            .filter(Chunk.id.in_(all_ids))
+            .all()
+        )
+        db.expunge_all()
+        return chunks
+
+
+async def search_sources(
+    chunks: list[Chunk], previews: Optional[bool] = False
+) -> list[SearchResult]:
+    by_source = defaultdict(list)
+    for chunk in chunks:
+        by_source[chunk.source_id].append(chunk)
+
+    with make_session() as db:
+        sources = db.query(SourceItem).filter(SourceItem.id.in_(by_source.keys())).all()
+        return [
+            SearchResult.from_source_item(source, by_source[source.id], previews)
+            for source in sources
+        ]
+
+
 async def search(
     data: list[extract.DataChunk],
     previews: Optional[bool] = False,
     modalities: set[str] = set(),
     limit: int = 10,
-    min_text_score: float = 0.4,
-    min_multimodal_score: float = 0.25,
     filters: SearchFilters = {},
     timeout: int = 2,
 ) -> list[SearchResult]:
@@ -50,56 +84,11 @@ async def search(
     - List of search results sorted by score
     """
     allowed_modalities = modalities & ALL_COLLECTIONS.keys()
-
+    chunks = await search_chunks(
-    searches = []
+        data,
-    if settings.ENABLE_EMBEDDING_SEARCH:
+        allowed_modalities,
-        searches = [
+        limit,
-            with_timeout(
+        filters,
-                search_embeddings(
+        timeout,
-                    data,
+    )
-                    previews,
+    return await search_sources(chunks, previews)
-                    allowed_modalities & TEXT_COLLECTIONS,
-                    limit,
-                    min_text_score,
-                    filters,
-                    multimodal=False,
-                ),
-                timeout,
-            ),
-            with_timeout(
-                search_embeddings(
-                    data,
-                    previews,
-                    allowed_modalities & MULTIMODAL_COLLECTIONS,
-                    limit,
-                    min_multimodal_score,
-                    filters,
-                    multimodal=True,
-                ),
-                timeout,
-            ),
-        ]
-    if settings.ENABLE_BM25_SEARCH:
-        searches.append(
-            with_timeout(
-                search_bm25(
-                    " ".join(
-                        [c for chunk in data for c in chunk.data if isinstance(c, str)]
-                    ),
-                    modalities,
-                    limit=limit,
-                    filters=filters,
-                ),
-                timeout,
-            )
-        )
-
-    search_results = await asyncio.gather(*searches, return_exceptions=False)
-    all_results = []
-    for results in search_results:
-        if len(all_results) >= limit:
-            break
-        all_results.extend(results)
-
-    results = group_chunks(all_results, previews or False)
-    return sorted(results, key=lambda x: max(c.score for c in x.chunks), reverse=True)

src/memory/api/search/types.py

@@ -0,0 +1,67 @@
+from datetime import datetime
+import logging
+from typing import Optional, TypedDict, NotRequired, cast
+
+from memory.common.db.models.source_item import SourceItem
+from pydantic import BaseModel
+
+from memory.common.db.models import Chunk
+from memory.common import settings
+
+logger = logging.getLogger(__name__)
+
+
+class SearchResponse(BaseModel):
+    collection: str
+    results: list[dict]
+
+
+def elide_content(content: str, max_length: int = 100) -> str:
+    if content and len(content) > max_length:
+        return content[:max_length] + "..."
+    return content
+
+
+class SearchResult(BaseModel):
+    id: int
+    chunks: list[str]
+    size: int | None = None
+    mime_type: str | None = None
+    content: Optional[str | dict] = None
+    filename: Optional[str] = None
+    tags: list[str] | None = None
+    metadata: dict | None = None
+    created_at: datetime | None = None
+
+    @classmethod
+    def from_source_item(
+        cls, source: SourceItem, chunks: list[Chunk], previews: Optional[bool] = False
+    ) -> "SearchResult":
+        metadata = source.display_contents or {}
+        metadata.pop("content", None)
+        chunk_size = settings.DEFAULT_CHUNK_TOKENS * 4
+
+        return cls(
+            id=cast(int, source.id),
+            size=cast(int, source.size),
+            mime_type=cast(str, source.mime_type),
+            chunks=[elide_content(str(chunk.content), chunk_size) for chunk in chunks],
+            content=elide_content(
+                cast(str, source.content),
+                settings.MAX_PREVIEW_LENGTH
+                if previews
+                else settings.MAX_NON_PREVIEW_LENGTH,
+            ),
+            filename=cast(str, source.filename),
+            tags=cast(list[str], source.tags),
+            metadata=metadata,
+            created_at=cast(datetime | None, source.inserted_at),
+        )
+
+
+class SearchFilters(TypedDict):
+    min_size: NotRequired[int]
+    max_size: NotRequired[int]
+    min_confidences: NotRequired[dict[str, float]]
+    observation_types: NotRequired[list[str] | None]
+    source_ids: NotRequired[list[int] | None]

src/memory/api/search/utils.py

@@ -1,140 +0,0 @@
-import asyncio
-import traceback
-from datetime import datetime
-import logging
-from collections import defaultdict
-from typing import Optional, TypedDict, NotRequired
-
-from pydantic import BaseModel
-
-from memory.common import settings
-from memory.common.db.models import Chunk
-
-logger = logging.getLogger(__name__)
-
-
-class AnnotatedChunk(BaseModel):
-    id: str
-    score: float
-    metadata: dict
-    preview: Optional[str | None] = None
-    search_method: str | None = None
-
-
-class SourceData(BaseModel):
-    """Holds source item data to avoid SQLAlchemy session issues"""
-
-    id: int
-    size: int | None
-    mime_type: str | None
-    filename: str | None
-    content_length: int
-    contents: dict | str | None
-    created_at: datetime | None
-
-    @staticmethod
-    def from_chunk(chunk: Chunk) -> "SourceData":
-        source = chunk.source
-        display_contents = source.display_contents or {}
-        return SourceData(
-            id=source.id,
-            size=source.size,
-            mime_type=source.mime_type,
-            filename=source.filename,
-            content_length=len(source.content) if source.content else 0,
-            contents={k: v for k, v in display_contents.items() if v is not None},
-            created_at=source.inserted_at,
-        )
-
-
-class SearchResponse(BaseModel):
-    collection: str
-    results: list[dict]
-
-
-class SearchResult(BaseModel):
-    id: int
-    size: int
-    mime_type: str
-    chunks: list[AnnotatedChunk]
-    content: Optional[str | dict] = None
-    filename: Optional[str] = None
-    tags: list[str] | None = None
-    metadata: dict | None = None
-    created_at: datetime | None = None
-
-
-class SearchFilters(TypedDict):
-    min_size: NotRequired[int]
-    max_size: NotRequired[int]
-    min_confidences: NotRequired[dict[str, float]]
-    observation_types: NotRequired[list[str] | None]
-    source_ids: NotRequired[list[int] | None]
-
-
-async def with_timeout(
-    call, timeout: int = 2
-) -> list[tuple[SourceData, AnnotatedChunk]]:
-    """
-    Run a function with a timeout.
-
-    Args:
-        call: The function to run
-        timeout: The timeout in seconds
-    """
-    try:
-        return await asyncio.wait_for(call, timeout=timeout)
-    except TimeoutError:
-        logger.warning(f"Search timed out after {timeout}s")
-        return []
-    except Exception as e:
-        traceback.print_exc()
-        logger.error(f"Search failed: {e}")
-        return []
-
-
-def group_chunks(
-    chunks: list[tuple[SourceData, AnnotatedChunk]], preview: bool = False
-) -> list[SearchResult]:
-    items = defaultdict(list)
-    source_lookup = {}
-
-    for source, chunk in chunks:
-        items[source.id].append(chunk)
-        source_lookup[source.id] = source
-
-    def get_content(text: str | dict | None) -> str | dict | None:
-        if isinstance(text, str) and len(text) > settings.MAX_PREVIEW_LENGTH:
-            return None
-        return text
-
-    def make_result(source: SourceData, chunks: list[AnnotatedChunk]) -> SearchResult:
-        contents = source.contents or {}
-        tags = []
-        if isinstance(contents, dict):
-            tags = contents.pop("tags", [])
-            content = contents.pop("content", None)
-        else:
-            content = contents
-            contents = {}
-
-        return SearchResult(
-            id=source.id,
-            size=source.size or source.content_length,
-            mime_type=source.mime_type or "text/plain",
-            filename=source.filename
-            and source.filename.replace(
-                str(settings.FILE_STORAGE_DIR).lstrip("/"), "/files"
-            ),
-            content=get_content(content),
-            tags=tags,
-            metadata=contents,
-            chunks=sorted(chunks, key=lambda x: x.score, reverse=True),
-            created_at=source.created_at,
-        )
-
-    return [
-        make_result(source, chunks)
-        for source_id, chunks in items.items()
-        for source in [source_lookup[source_id]]
-    ]

src/memory/common/db/models/source_item.py

@@ -368,7 +368,7 @@ class SourceItem(Base):
         return [cls.__tablename__]
 
     @property
-    def display_contents(self) -> str | dict | None:
+    def display_contents(self) -> dict | None:
         payload = self.as_payload()
         payload.pop("source_id", None)  # type: ignore
         return {

src/memory/common/settings.py

@@ -135,7 +135,7 @@ SUMMARIZER_MODEL = os.getenv("SUMMARIZER_MODEL", "anthropic/claude-3-haiku-20240
 # Search settings
 ENABLE_EMBEDDING_SEARCH = boolean_env("ENABLE_EMBEDDING_SEARCH", True)
 ENABLE_BM25_SEARCH = boolean_env("ENABLE_BM25_SEARCH", True)
-MAX_PREVIEW_LENGTH = int(os.getenv("MAX_PREVIEW_LENGTH", DEFAULT_CHUNK_TOKENS * 8))
+MAX_PREVIEW_LENGTH = int(os.getenv("MAX_PREVIEW_LENGTH", DEFAULT_CHUNK_TOKENS * 16))
 MAX_NON_PREVIEW_LENGTH = int(os.getenv("MAX_NON_PREVIEW_LENGTH", 2000))
 
 # API settings