-- Test compressed CSV export functionality CREATE TABLE test_csv_compression( `id` UINT32, `name` STRING, `value` DOUBLE, ts TIMESTAMP TIME INDEX ); -- Insert test data INSERT INTO test_csv_compression(`id`, `name`, `value`, ts) VALUES (1, 'Alice', 10.5, 1640995200000), (2, 'Bob', 20.3, 1640995260000), (3, 'Charlie', 30.7, 1640995320000), (4, 'David', 40.1, 1640995380000), (5, 'Eve', 50.9, 1640995440000); -- Test uncompressed CSV export COPY test_csv_compression TO '${SQLNESS_HOME}/export/test_csv_uncompressed.csv' WITH (format='csv'); -- Test GZIP compressed CSV export COPY test_csv_compression TO '${SQLNESS_HOME}/export/test_csv_gzip.csv.gz' WITH (format='csv', compression_type='gzip'); -- Test ZSTD compressed CSV export COPY test_csv_compression TO '${SQLNESS_HOME}/export/test_csv_zstd.csv.zst' WITH (format='csv', compression_type='zstd'); -- Test BZIP2 compressed CSV export COPY test_csv_compression TO '${SQLNESS_HOME}/export/test_csv_bzip2.csv.bz2' WITH (format='csv', compression_type='bzip2'); -- Test XZ compressed CSV export COPY test_csv_compression TO '${SQLNESS_HOME}/export/test_csv_xz.csv.xz' WITH (format='csv', compression_type='xz'); -- Test compressed CSV with custom delimiter b'\t' (ASCII 9) COPY test_csv_compression TO '${SQLNESS_HOME}/export/test_csv_tab_separated.csv.gz' WITH (format='csv', compression_type='gzip', delimiter='9'); -- Test compressed CSV with timestamp format COPY test_csv_compression TO '${SQLNESS_HOME}/export/test_csv_timestamp_format.csv.zst' WITH (format='csv', compression_type='zstd', timestamp_format='%Y-%m-%d %H:%M:%S'); -- Test compressed CSV with date format COPY test_csv_compression TO '${SQLNESS_HOME}/export/test_csv_date_format.csv.gz' WITH (format='csv', compression_type='gzip', date_format='%Y/%m/%d'); -- Clean up DROP TABLE test_csv_compression;