@timescaledb/core/dist/compression.js

The `@timescaledb/core` package provides fundamental building blocks for working with TimescaleDB in TypeScript/JavaScript applications. It includes SQL query builders and utilities for managing hypertables, continuous aggregates, compression, and other T

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.CompressionBuilder = void 0;
const schemas_1 = require("@timescaledb/schemas");
const utils_1 = require("@timescaledb/utils");
const debug_1 = require("./debug");
const debug = (0, debug_1.debugCore)('Compression');
class CompressionStatsBuilder {
    constructor(name, select) {
        this.statements = [];
        this.name = name;
        this.options = select;
    }
    build() {
        debug(`Building compression stats query for '${this.name}'`);
        this.statements.push(`SELECT`);
        const columns = [];
        if (this.options.total_chunks) {
            columns.push(`COALESCE(total_chunks, 0)::integer as total_chunks`);
        }
        if (this.options.compressed_chunks) {
            columns.push(`COALESCE(number_compressed_chunks, 0)::integer as compressed_chunks`);
        }
        if (columns.length === 0) {
            this.statements.push(`*`);
        }
        else {
            this.statements.push(columns.join(',\n'));
        }
        const literalName = (0, utils_1.escapeLiteral)(this.name);
        this.statements.push(`FROM hypertable_compression_stats(${literalName});`);
        const result = this.statements.join('\n');
        debug(`Compression stats query built for '${this.name}':\n${result}`);
        return result;
    }
}
class CompressionBuilder {
    constructor(name, options) {
        this.name = name;
        this.options = options;
    }
    stats(statOpts) {
        const select = schemas_1.CompressionSelectSchema.parse(statOpts.select);
        return new CompressionStatsBuilder(this.name, select);
    }
}
exports.CompressionBuilder = CompressionBuilder;
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