@langchain/community/dist/vectorstores/azion_edgesql.cjs

Third-party integrations for LangChain.js

const require_rolldown_runtime = require('../_virtual/rolldown_runtime.cjs');
const __langchain_core_documents = require_rolldown_runtime.__toESM(require("@langchain/core/documents"));
const azion_sql = require_rolldown_runtime.__toESM(require("azion/sql"));
const __langchain_core_vectorstores = require_rolldown_runtime.__toESM(require("@langchain/core/vectorstores"));

//#region src/vectorstores/azion_edgesql.ts
var azion_edgesql_exports = {};
require_rolldown_runtime.__export(azion_edgesql_exports, { AzionVectorStore: () => AzionVectorStore });
/**
* Example usage:
* ```ts
* // Initialize the vector store
* const vectorStore = new AzionVectorStore(embeddings, {
*   dbName: "mydb",
*   tableName: "documents"
* });
*
* // Setup database with hybrid search and metadata columns
* await vectorStore.setupDatabase({
*   columns: ["topic", "language"],
*   mode: "hybrid"
* });
*
*
* // OR: Initialize using the static create method
* const vectorStore = await AzionVectorStore.initialize(embeddings, {
*   dbName: "mydb",
*   tableName: "documents"
* }, {
*   columns: ["topic", "language"],
*   mode: "hybrid"
* });
*
* By default, the columns are not expanded, meaning that the metadata is stored in a single column:
*
* // Setup database with hybrid search and metadata columns
* await vectorStore.setupDatabase({
*   columns: ["*"],
*   mode: "hybrid"
* });
*
* // Add documents to the vector store
* await vectorStore.addDocuments([
*   new Document({
*     pageContent: "Australia is known for its unique wildlife",
*     metadata: { topic: "nature", language: "en" }
*   })
* ]);
*
* // Perform similarity search
* const results = await vectorStore.similaritySearch(
*   "coral reefs in Australia",
*   2, // Return top 2 results
*   { filter: [{ operator: "=", column: "topic", string: "biology" }] } // Optional AzionFilter
* );
*
* // Perform full text search
* const ftResults = await vectorStore.fullTextSearch(
*   "Sydney Opera House",
*   1, // Return top result
*   { filter: [{ operator: "=", column: "language", string: "en" }] } // Optional AzionFilter
* );
* ```
*/
var AzionVectorStore = class AzionVectorStore extends __langchain_core_vectorstores.VectorStore {
	/** Name of the main table to store vectors and documents */
	tableName;
	/** Name of the database to use */
	dbName;
	/** Whether the metadata is contained in a single column or multiple columns */
	expandedMetadata;
	_vectorstoreType() {
		return "azionEdgeSQL";
	}
	constructor(embeddings, args) {
		super(embeddings, args);
		this.tableName = args.tableName;
		this.dbName = args.dbName;
		this.expandedMetadata = args.expandedMetadata ?? false;
	}
	/**
	* Creates a new vector store instance and sets up the database.
	* @param {EmbeddingsInterface} embeddings - The embeddings interface to use for vectorizing documents
	* @param {AzionVectorStoreArgs} args - Configuration options:
	*   @param {string} args.dbName - Name of the database to create/use
	*   @param {string} args.tableName - Name of the table to create/use
	* @param {AzionSetupOptions} setupOptions - Database setup options:
	*   @param {string[]} setupOptions.columns - Additional columns to create in the table beyond the required ones. If expandedMetadata is true, this is required.
	*   @param {"vector"|"hybrid"} setupOptions.mode - The search mode to enable:
	*     - "vector": Only vector similarity search capabilities
	*     - "hybrid": Both vector and full-text search capabilities
	* @returns {Promise<AzionVectorStore>} A promise that resolves with the configured vector store instance
	*/
	static async initialize(embeddings, args, setupOptions) {
		const instance = new AzionVectorStore(embeddings, args);
		await instance.setupDatabase(setupOptions);
		return instance;
	}
	/**
	* Adds documents to the vector store.
	* @param {Document[]} documents The documents to add.
	* @param {Object} options Optional parameters for adding the documents.
	* @returns A promise that resolves when the documents have been added.
	*/
	async addDocuments(documents) {
		const texts = documents.map((doc) => doc.pageContent);
		const embeddings = await this.embeddings.embedDocuments(texts);
		return this.addVectors(embeddings, documents);
	}
	/**
	* Adds vectors to the vector store.
	* @param {number[][]} vectors The vectors to add.
	* @param {Document[]} documents The documents associated with the vectors.
	* @param {Object} options Optional parameters for adding the vectors.
	* @returns A promise that resolves with the IDs of the added vectors when the vectors have been added.
	*/
	async addVectors(vectors, documents) {
		const rows = await this.mapRowsFromDocuments(vectors, documents);
		const insertStatements = this.createStatements(rows);
		const chunks = this.createInsertChunks(insertStatements);
		await this.insertChunks(chunks);
	}
	/**
	* Gets the dimensions of the embeddings.
	* @returns {Promise<number>} The dimensions of the embeddings.
	*/
	async getEmbeddingsDimensions() {
		return (await this.embeddings.embedQuery("test")).length;
	}
	/**
	* Maps the rows and metadata to the correct format.
	* @param vectors The vectors to map.
	* @param {Document[]} documents The documents to map.
	* @returns {Promise<RowsInterface[]>} The mapped rows and metadata.
	*/
	async mapRowsFromDocuments(vectors, documents) {
		return vectors.map((embedding, idx) => ({
			content: documents[idx].pageContent,
			embedding,
			metadata: documents[idx].metadata
		}));
	}
	/**
	* Sets up the database and tables.
	* @param {AzionSetupOptions} setupOptions The setup options:
	*   - columns: string[] - The metadata columns to add to the table
	*   - mode: "vector" | "hybrid" - The mode to use for the table. "vector" for vector search only, "hybrid" for vector and full-text search
	* @returns {Promise<void>} A promise that resolves when the database and tables have been set up.
	*/
	async setupDatabase(setupOptions) {
		const { columns, mode } = setupOptions;
		if (this.expandedMetadata && !columns) throw new Error("Columns must be informed when using expanded metadata!");
		await this.handleDatabase();
		await this.handleTables(mode, columns);
	}
	/**
	* Handles the table creation and setup.
	* @param {string} mode The mode.
	* @param {string[]} columns The columns to setup.
	* @returns {Promise<void>} A promise that resolves when the table has been created and setup.
	*/
	async handleTables(mode, columns) {
		const { data: dataTables, error: errorTables } = await (0, azion_sql.getTables)(this.dbName);
		this.errorHandler(errorTables, "Error getting tables");
		const tables = dataTables?.results?.[0]?.rows?.map((row) => row[1]);
		if (!this.areTablesSetup(tables, mode)) {
			const { error: errorSetupDb } = await this.setupTables(mode, columns);
			this.errorHandler(errorSetupDb, "Error setting up tables");
		}
	}
	/**
	* Handles the error.
	* @param {Object} error The error object.
	* @param {string} message The message to display.
	* @returns {void} A void value.
	*/
	errorHandler(error, message) {
		if (error) {
			console.log(message, error);
			throw new Error(error?.message ?? message);
		}
	}
	/**
	* Checks if the tables are setup.
	* @param {string | number | string[] | number[]} tables The tables.
	* @param {string} mode The mode.
	* @returns {boolean} Whether the tables are setup.
	*/
	areTablesSetup(tables, mode) {
		if (!tables) return false;
		if (mode === "hybrid") return tables?.includes(this.tableName) && tables?.includes(`${this.tableName}_fts`);
		return tables?.includes(this.tableName);
	}
	/**
	* Handles the database creation and setup.
	* @returns {Promise<void>} A promise that resolves when the database has been created and setup.
	*/
	async handleDatabase() {
		const { data: dataGet, error: errorGet } = await (0, azion_sql.getDatabases)();
		this.errorHandler(errorGet, "Error getting databases");
		if (!dataGet?.databases?.find((db) => db.name === this.dbName)) {
			console.log("Creating database: ", this.dbName);
			const { error: errorCreate } = await (0, azion_sql.createDatabase)(this.dbName);
			await this.waitDatabaseCreation(this.dbName);
			console.log(`Database ${this.dbName} created`);
			this.errorHandler(errorCreate, "Error creating database");
		}
	}
	/**
	* Wait for the database to be created. Retry every 3 seconds until the database is created.
	* @param databaseName {string} The database name
	* @returns {Promise<void>}
	*/
	async waitDatabaseCreation(databaseName) {
		let databaseStatus = "creating";
		while (databaseStatus !== "created") {
			const { data, error } = await (0, azion_sql.getDatabase)(databaseName);
			if (error) throw error;
			if (data && data.status === "created") databaseStatus = "created";
			await new Promise((resolve) => {
				setTimeout(resolve, 3e3);
			});
		}
		return "Created";
	}
	/**
	* Sets up the tables based on the specified mode and columns.
	* @param {string} mode The mode to use - either "vector" for vector search only or "hybrid" for vector + full text search
	* @param {string[]} columns Additional metadata columns to add to the tables
	* @returns {Promise<AzionDatabaseResponse<string>>} A promise that resolves when the tables have been created and setup
	*/
	async setupTables(mode, columns) {
		let createTableColumns = ",metadata JSON";
		if (this.expandedMetadata && columns) createTableColumns = columns.length > 0 ? `,${columns.map((key) => `${key} TEXT`).join(",")}` : "";
		const createTableStatement = `
        CREATE TABLE ${this.tableName} (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            content TEXT NOT NULL,
            embedding F32_BLOB(${await this.getEmbeddingsDimensions()})
            ${createTableColumns}
        );`;
		const createIndexStatement = `
        CREATE INDEX ${this.tableName}_idx ON ${this.tableName} (
            libsql_vector_idx(embedding, 'metric=cosine', 'compress_neighbors=float8', 'max_neighbors=20')
        )`;
		let createFtsColumns = ",metadata";
		if (this.expandedMetadata && columns) createFtsColumns = columns.length > 0 ? `,${columns.map((key) => `${key}`).join(",")}` : "";
		const createFtsStatement = `
        CREATE VIRTUAL TABLE IF NOT EXISTS ${this.tableName}_fts USING fts5(
            content,
            id UNINDEXED
            ${createFtsColumns},
            tokenize = 'porter'
        )`;
		let createTriggersColumns = ",metadata";
		let insertTriggersValues = ",new.metadata";
		let updateTriggersColumns = ",metadata = new.metadata";
		if (this.expandedMetadata && columns) {
			createTriggersColumns = columns.length > 0 ? `,${columns.join(",")}` : "";
			insertTriggersValues = columns.length > 0 ? `,${columns.map((key) => `new.${key}`).join(",")}` : "";
			updateTriggersColumns = columns.length > 0 ? `,${columns.map((key) => `${key} = new.${key}`).join(",")}` : "";
		}
		const createTriggersStatements = [
			`CREATE TRIGGER IF NOT EXISTS insert_into_${this.tableName}_fts 
        AFTER INSERT ON ${this.tableName}
        BEGIN
            INSERT INTO ${this.tableName}_fts(id, content ${createTriggersColumns})
            VALUES(new.id, new.content ${insertTriggersValues});
        END`,
			`CREATE TRIGGER IF NOT EXISTS update_${this.tableName}_fts 
        AFTER UPDATE ON ${this.tableName}
        BEGIN
            UPDATE ${this.tableName}_fts 
            SET content = new.content
            ${updateTriggersColumns}
            WHERE id = old.id;
        END`,
			`CREATE TRIGGER IF NOT EXISTS delete_${this.tableName}_fts
        AFTER DELETE ON ${this.tableName}
        BEGIN
            DELETE FROM ${this.tableName}_fts WHERE id = old.id;
        END`
		];
		let allStatements = [
			createTableStatement,
			createIndexStatement,
			createFtsStatement,
			...createTriggersStatements
		];
		if (mode === "vector") allStatements = allStatements.slice(0, 2);
		const { error } = await (0, azion_sql.useExecute)(this.dbName, allStatements);
		this.errorHandler(error, "Error setting up tables");
		return {
			data: "Database setup successfully",
			error: void 0
		};
	}
	/**
	* Inserts the chunks into the database.
	* @param {string[][]} chunks The chunks to insert.
	* @returns {Promise<void>} A promise that resolves when the chunks have been inserted.
	*/
	async insertChunks(chunks) {
		for (const chunk of chunks) {
			console.log("Inserting chunk", chunks.indexOf(chunk));
			const { error } = await (0, azion_sql.useExecute)(this.dbName, chunk, { debug: true });
			this.errorHandler(error, "Error inserting chunk");
		}
		console.log("Chunks inserted!");
	}
	/**
	* Extracts the metadata columns from the rows.
	* @param {RowsInterface[]} rows The rows to extract the metadata columns from.
	* @returns {string[]} The metadata columns.
	*/
	extractMetadataColumns(rows) {
		const metadataColumns = [];
		for (const row of Object.values(rows)) if (row.metadata) Object.keys(row.metadata).forEach((key) => {
			if (!metadataColumns.includes(key)) metadataColumns.push(key);
		});
		return metadataColumns;
	}
	/**
	* Creates the insert statement for a row.
	* @param {RowsInterface} row The row to create the insert statement for.
	* @param {string[]} metadataColumns The metadata columns.
	* @returns {string} The insert statement.
	*/
	createInsertStatement(row, metadataColumns) {
		if (this.expandedMetadata) {
			const columnNames$1 = [
				"content",
				"embedding",
				...metadataColumns
			];
			const values$1 = [
				row.content,
				row.embedding,
				...metadataColumns.map((col) => row.metadata?.[col] ?? null)
			];
			return this.createInsertString(columnNames$1, values$1);
		}
		const columnNames = [
			"content",
			"embedding",
			"metadata"
		];
		const values = [
			row.content,
			row.embedding,
			JSON.stringify(row.metadata)
		];
		return this.createInsertString(columnNames, values);
	}
	/**
	* Creates the insert statements for the rows.
	* @param {RowsInterface[]} rows The rows to create the insert statements for.
	* @returns {string[]} The insert statements.
	*/
	createStatements(rows) {
		const insertStatements = [];
		const metadataColumns = this.extractMetadataColumns(rows);
		for (const row of rows) {
			const statement = this.createInsertStatement(row, metadataColumns);
			insertStatements.push(statement);
		}
		return insertStatements;
	}
	/**
	* Creates the insert chunks for the statements.
	* @param {string[]} statements The statements to create the insert chunks for.
	* @returns {string[][]} The insert chunks.
	*/
	createInsertChunks(statements) {
		const maxChunkLength = 1e3;
		const maxMbSize = .8 * 1024 * 1024;
		const insertChunk = [];
		let originalStatements = statements;
		const totalSize = this.getStringBytes(originalStatements.join(" "));
		if (totalSize < maxMbSize && originalStatements.length < maxChunkLength) return [originalStatements];
		console.log("Total size exceeded max size. Initiating chunking...");
		let array = [];
		while (originalStatements.length > 0) for (const statement of originalStatements) {
			const totalStringBytes = this.getStringBytes(statement) + this.getStringBytes(array.join(" "));
			if (totalStringBytes > maxMbSize || array.length + 1 > maxChunkLength) {
				insertChunk.push(array);
				array = [statement];
				originalStatements = originalStatements.slice(1);
			} else {
				array.push(statement);
				if (originalStatements.length === 1) insertChunk.push(array);
				originalStatements = originalStatements.slice(1);
			}
		}
		return insertChunk;
	}
	/**
	* Gets the number of bytes in a string.
	* @param {string} str The string to get the number of bytes for.
	* @returns {number} The number of bytes in the string.
	*/
	getStringBytes(str) {
		return new TextEncoder().encode(str).length;
	}
	/**
	* Performs a similarity search on the vector store and returns the top 'similarityK' similar documents.
	* @param {number[]} vector The vector to search for.
	* @param {number} k The number of documents to return.
	* @param {AzionFilter[]} filter Optional filters to apply to the search.
	* @param {string[]} metadataItems Optional metadata items to include in the search.
	* @returns {Promise<[Document, number][]>} A promise that resolves with the similarity search results when the search is complete.
	*/
	async similaritySearchVectorWithScore(vector, k, filter, metadataItems) {
		const metadata = this.generateMetadata(metadataItems, "similarity");
		const filters = this.generateFilters(filter);
		const similarityQuery = `
      SELECT 
      id, content, ${metadata}, 1 - vector_distance_cos(embedding, vector('[${vector}]')) as similarity
      FROM ${this.tableName}  
      WHERE ${filters} rowid IN vector_top_k('${this.tableName}_idx', vector('[${vector}]'), ${k})`;
		const { data, error } = await (0, azion_sql.useQuery)(this.dbName, [similarityQuery]);
		if (!data) {
			this.errorHandler(error, "Error performing similarity search");
			throw this.searchError(error);
		}
		const searches = this.mapRows(data.results);
		const results = this.mapSearches(searches);
		return results;
	}
	/**
	* Performs a full-text search on the vector store and returns the top 'k' similar documents.
	* @param query The query string to search for
	* @param options The options for the full-text search, including:
	*                - kfts: The number of full-text search results to return
	*                - filter: Optional filters to apply to narrow down the search results
	*                - metadataItems: Optional metadata fields to include in the results
	* @returns A promise that resolves with the full-text search results when the search is complete.
	*/
	async azionFullTextSearch(query, options) {
		const { kfts, filter, metadataItems } = options;
		const metadata = this.generateMetadata(metadataItems, "fulltextsearch");
		const filters = this.generateFilters(filter);
		const fullTextQuery = `
      SELECT id, content, ${metadata}, rank as bm25_similarity
      FROM ${this.tableName}_fts  
      WHERE ${filters} ${this.tableName}_fts MATCH '${this.convert2FTSQuery(query)}'
      LIMIT ${kfts}`;
		const { data, error } = await (0, azion_sql.useQuery)(this.dbName, [fullTextQuery]);
		if (!data) {
			this.errorHandler(error, "Error performing full-text search");
			throw this.searchError(error);
		}
		const searches = this.mapRows(data?.results);
		const results = this.mapSearches(searches);
		return results;
	}
	/**
	* Performs a hybrid search on the vector store and returns the top 'k' similar documents.
	* @param query The query string to search for
	* @param options The options for the hybrid search, including:
	*                - kfts: The number of full-text search results to return
	*                - kvector: The number of vector search results to return
	*                - filter: Optional filters to apply to narrow down the search results
	*                - metadataItems: Optional metadata fields to include in the results
	* @returns A promise that resolves with the hybrid search results when the search is complete.
	*/
	async azionHybridSearch(query, hybridSearchOptions) {
		const { kfts, kvector, filter, metadataItems } = hybridSearchOptions;
		const vector = await this.embeddings.embedQuery(query);
		const ftsResults = await this.azionFullTextSearch(query, {
			kfts,
			filter,
			metadataItems
		});
		const vectorResults = await this.similaritySearchVectorWithScore(vector, kvector, filter, metadataItems);
		return this.removeDuplicates([...ftsResults, ...vectorResults], kfts, kvector);
	}
	/**
	* Performs a similarity search on the vector store and returns the top 'k' similar documents.
	* @param query The query string.
	* @param options The options for the similarity search, including:
	*                - kvector: The number of vector search results to return
	*                - filter: Optional filters to apply to the search
	*                - metadataItems: Optional metadata fields to include in results
	* @returns A promise that resolves with the similarity search results when the search is complete.
	*/
	async azionSimilaritySearch(query, options) {
		const { kvector, filter, metadataItems } = options;
		const vector = await this.embeddings.embedQuery(query);
		return this.similaritySearchVectorWithScore(vector, kvector, filter, metadataItems);
	}
	/**
	* Generates an error document based on the provided error information
	* @param {Object} error The error object containing details about the issue
	* @returns {Promise<[Document, number][]>} A promise that resolves to an array containing a single Document representing the error
	*/
	searchError(error) {
		throw new Error(error?.message);
	}
	/**
	* Deletes documents from the vector store.
	* @param {string[]} ids The IDs of the documents to delete.
	* @returns {Promise<void>} A promise that resolves when the documents have been deleted.
	*/
	async delete(ids) {
		const deleteStatement = `DELETE FROM ${this.tableName} WHERE id IN (${ids.join(",")})`;
		const { error } = await (0, azion_sql.useExecute)(this.dbName, [deleteStatement]);
		if (error) this.errorHandler(error, `Error deleting document from ${this.tableName}`);
		else console.log(`Deleted ${ids.length} items from ${this.tableName}`);
	}
	/**
	* Removes duplicate results from the search results, prioritizing a mix of similarity and FTS results.
	* @param {[Document, number][]} results - The array of search results to process, containing document and score pairs
	* @param {number} kfts - Maximum number of full-text search results to include
	* @param {number} kvector - Maximum number of vector similarity search results to include
	* @returns {[Document, number][]} An array of unique search results, limited by kfts and kvector parameters
	*/
	removeDuplicates(results, kfts, kvector) {
		const uniqueResults = [];
		const seenIds = /* @__PURE__ */ new Set();
		let similarityCount = 0;
		let ftsCount = 0;
		const maxItems = kfts + kvector;
		for (const result of results) {
			if (!seenIds.has(result[0].id)) {
				if (result[0].metadata?.searchtype === "similarity" && similarityCount < kvector) {
					seenIds.add(result[0].id);
					uniqueResults.push(result);
					similarityCount += 1;
				} else if (result[0].metadata.searchtype === "fulltextsearch" && ftsCount < kfts) {
					seenIds.add(result[0].id);
					uniqueResults.push(result);
					ftsCount += 1;
				}
			}
			if (similarityCount + ftsCount === maxItems) break;
		}
		return uniqueResults;
	}
	/**
	* Converts query results to SearchEmbeddingsResponse objects.
	* @param {QueryResult[]} results - The raw query results from the database.
	* @returns {SearchEmbeddingsResponse[]} An array of SearchEmbeddingsResponse objects.
	*/
	mapRows(results) {
		if (!results) return [];
		return results.flatMap((queryResult) => {
			if (!queryResult.rows || !queryResult.columns) return [];
			return queryResult.rows.map((row) => ({
				id: Number(row[0]),
				content: String(row[1]),
				metadata: JSON.parse(String(row[2])),
				similarity: Number(row[3])
			}));
		});
	}
	/**
	* Maps search results to Document objects.
	* @param {SearchEmbeddingsResponse[]} searches An array of SearchEmbeddingsResponse objects.
	* @returns An array of tuples, each containing a single Document object.
	*/
	mapSearches(searches) {
		return searches.map((resp) => [new __langchain_core_documents.Document({
			metadata: resp.metadata,
			pageContent: resp.content,
			id: resp.id.toString()
		}), resp.similarity]);
	}
	/**
	* Generates the metadata string for the SQL query.
	* @param {string[]} metadataItems - The metadata items to include in the query.
	* @param {string} searchType - The type of search.
	* @returns {string} The metadata string.
	*/
	generateMetadata(metadataItems, searchType) {
		if (!metadataItems) return `json_object('searchtype', '${searchType}') as metadata`;
		if (this.expandedMetadata) return `json_object('searchtype','${searchType}',${metadataItems.map((item) => `'${this.sanitizeItem(item)}', ${this.sanitizeItem(item)}`).join(", ")}) as metadata`;
		return `json_patch(json_object(${metadataItems?.map((item) => `'${this.sanitizeItem(item)}', metadata->>'$.${this.sanitizeItem(item)}'`).join(", ")}), '{"searchtype":"${searchType}"}') as metadata`;
	}
	/**
	* Generates the filters string for the SQL query.
	* @param {AzionFilter[]} filters The filters to apply to the query.
	* @returns {string} The filters string.
	*/
	generateFilters(filters) {
		if (!filters || filters?.length === 0) return "";
		return `${filters.map(({ operator, column, value }) => {
			const columnRef = this.expandedMetadata ? this.sanitizeItem(column) : `metadata->>'$.${this.sanitizeItem(column)}'`;
			if (["IN", "NOT IN"].includes(operator.toUpperCase())) return `${columnRef} ${operator} (${this.sanitizeItem(value)})`;
			return `${columnRef} ${operator} '${this.sanitizeItem(value)}'`;
		}).join(" AND ")} AND `;
	}
	/**
	* Creates the insert sql query for a row.
	* @param {string[]} columnNames The column names.
	* @param {string[]} values The values.
	* @returns {string} The insert sql query.
	*/
	createInsertString(columnNames, values) {
		if (this.expandedMetadata) {
			const string$1 = `INSERT INTO ${this.tableName} (${columnNames.join(", ")}) 
      VALUES (${values.map((value, index) => columnNames[index] === "embedding" ? `vector('[${value}]')` : `'${this.escapeQuotes(value)}'`).join(", ")})`;
			return string$1;
		}
		const string = `INSERT INTO ${this.tableName} (${columnNames.join(", ")}) 
    VALUES (${values.map((value, index) => {
			if (columnNames[index] === "embedding") return `vector('[${value}]')`;
			else if (columnNames[index] === "metadata") return `'${value}'`;
			else return `'${this.escapeQuotes(value)}'`;
		}).join(", ")})`;
		return string;
	}
	/**
	* Escapes the quotes in the value.
	* @param {string} value The value to escape the quotes in.
	* @returns {string} The value with the quotes escaped.
	*/
	escapeQuotes(value) {
		if (typeof value === "string") return value.replace(/'/g, " ").replace(/"/g, " ");
		return value;
	}
	/**
	* Sanitizes an item by removing non-alphanumeric characters.
	* @param {string} item The item to sanitize.
	* @returns {string} The sanitized item.
	*/
	sanitizeItem(item) {
		if (item) return item.replace(/[^a-zA-Z0-9\s]/g, "");
		return "";
	}
	/**
	* Converts a query to a FTS query.
	* @param query The user query
	* @returns The converted FTS query
	*/
	convert2FTSQuery(query) {
		return query.replace(/[^a-záàâãéèêíïóôõöúçñA-ZÁÀÂÃÉÈÊÍÏÓÔÕÖÚÇÑ0-9\s]/g, "").replace(/\s+/g, " ").trim().split(" ").join(" OR ");
	}
};

//#endregion
exports.AzionVectorStore = AzionVectorStore;
Object.defineProperty(exports, 'azion_edgesql_exports', {
  enumerable: true,
  get: function () {
    return azion_edgesql_exports;
  }
});
//# sourceMappingURL=azion_edgesql.cjs.map