@timescaledb/typeorm/dist/repository/get-compression-stats.js

This is the official TimescaleDB plugin for TypeORM.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getCompressionStats = getCompressionStats;
const core_1 = require("@timescaledb/core");
const Hypertable_1 = require("../decorators/Hypertable");
const debug_1 = require("../debug");
const debug = (0, debug_1.debugTypeOrm)('getCompressionStats');
async function getCompressionStats() {
    try {
        const target = this.target;
        debug(`Getting compression stats for ${target.name}`);
        const options = Reflect.getMetadata(Hypertable_1.HYPERTABLE_METADATA_KEY, target);
        if (!options) {
            const error = 'Entity is not a hypertable';
            debug(error);
            throw new Error(error);
        }
        const hypertable = core_1.TimescaleDB.createHypertable(this.metadata.tableName, options);
        const sql = hypertable
            .compression()
            .stats({
            select: {
                total_chunks: true,
                compressed_chunks: true,
            },
        })
            .build();
        const [stats] = await this.query(sql);
        const result = {
            compressed_chunks: stats?.compressed_chunks ?? 0,
            total_chunks: stats?.total_chunks ?? 0,
        };
        debug('Compression stats retrieved');
        return result;
    }
    catch (error) {
        const e = error;
        const errorStr = 'Error getting compression stats' + (e.message ? `: ${e.message}` : '');
        debug(errorStr);
        return {
            compressed_chunks: 0,
            total_chunks: 0,
        };
    }
}
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